Category: Weather » General Weather

Report of Solar Geophysical Activity (RSGA)

6:01 pm Eastern | SciTech

Joint USAF/NOAA Solar Geophysical Activity Report and Forecastread more »

Eastern North Pacific Tropical Weather Outlook

1:34 pm Eastern | Weather

000 ABPZ20 KNHC 251734 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 1100 AM PDT Tue Jul 25 2017 For the eastern North Pacific...east of 140 degrees west longitude: The National Hurricane Center is issuing advisories on Tropical Storm Greg, located more than 1000 miles east of the Big Island of Hawaii, on Hurricane Hilary, located several hundred miles southwest of Manzanillo, Mexico, and on Hurricane Irwin, located several hundred miles southwest of the southern tip of the Baja California peninsula. An area of low pressure could form several hundred miles south of Mexico in a day or two. Development, if any, of this system is expected to be slow to occur for the next few days while it moves west-northwestward at 5 to 10 mph. Upper-level winds could become more conducive for some development by the weekend as Hurricane Hilary moves farther read more »

Severe Thunderstorms For The Upper Midwest; Monsoon Continues In The Southwest

1:32 pm Eastern | Weather

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Tropical Storm GREG Graphics

11:00 am Eastern | Weather

5-Day Uncertainty Track last updated Tue, 25 Jul 2017 15:00:16 GMT Wind Speed Probabilities last updated Tue, 25 Jul 2017 15:25:41 GMT read more »

Tropical Storm GREG Forecast Discussion Number 33

10:50 am Eastern | Weather

Issued at 800 AM PDT Tue Jul 25 2017 000 WTPZ42 KNHC 251450 TCDEP2 Tropical Storm Greg Discussion Number 33 NWS National Hurricane Center Miami FL EP072017 800 AM PDT Tue Jul 25 2017 Greg's convective pattern continues to deteriorate, and all of the thunderstorm activity appears limited to the west and northwest of the low-level center. Dvorak final-T numbers have decreased, and it is assumed that Greg has weakened to a 35-kt tropical storm. Southerly shear is increasing over Greg, and it is expected increase further to around 30-35 kt and turn out of the northwest in about 48 hours. In addition, the low- to mid-level environment continues to get drier, and Greg is moving toward cooler waters. All of this means that additional weakening is anticipated, and Greg is likely to degenerate into a remnant low by 48 hours. The remnant low will likely persist through the remainder of the forecast period. The best estimate of the initial motion is 295/9 kt. A low- to mid-lread more »

Tropical Storm GREG Wind Speed Probabilities Number 33

10:49 am Eastern | Weather

Issued at 1500 UTC TUE JUL 25 2017 000 FOPZ12 KNHC 251449 PWSEP2 TROPICAL STORM GREG WIND SPEED PROBABILITIES NUMBER 33 NWS NATIONAL HURRICANE CENTER MIAMI FL EP072017 1500 UTC TUE JUL 25 2017 AT 1500Z THE CENTER OF TROPICAL STORM GREG WAS LOCATED NEAR LATITUDE 15.4 NORTH...LONGITUDE 136.8 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 35 KTS...40 MPH...65 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 HOURS FROM Z TIME read more »

Tropical Storm GREG Forecast Advisory Number 33

10:49 am Eastern | Weather

Issued at 1500 UTC TUE JUL 25 2017 000 WTPZ22 KNHC 251448 TCMEP2 TROPICAL STORM GREG FORECAST/ADVISORY NUMBER 33 NWS NATIONAL HURRICANE CENTER MIAMI FL EP072017 1500 UTC TUE JUL 25 2017 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 15.4N 136.8W AT 25/1500Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 9 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1005 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 0NE 0SE 0SW 60NW. 12 FT SEAS.. 90NE 30SE 0SW 75NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 15.4N 136.8W AT 25/1500Z AT 25/1200Z CENTER WAS LOCATED NEAR 15.2N 136.5W FORECAST VALID 26/0000Z 16.3N 137.8W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 0NE 0SE 0SW 50NW. FORECAST VALID 26/1200Z 17.1N 139.1W MAX WIND 35 KT...GUSTS 45 KT. 34read more »

Tropical Storm GREG Public Advisory Number 33

10:49 am Eastern | Weather

Issued at 800 AM PDT Tue Jul 25 2017 000 WTPZ32 KNHC 251448 TCPEP2 BULLETIN Tropical Storm Greg Advisory Number 33 NWS National Hurricane Center Miami FL EP072017 800 AM PDT Tue Jul 25 2017 ...GREG WEAKENS A LITTLE... SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...15.4N 136.8W ABOUT 1270 MI...2045 KM E OF SOUTH POINT HAWAII MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 AM PDT (1500 UTC), the center of Tropical Storm Greg was located near latitude 15.4 North, longitude 136.8 West. Greg is moving toward the west-northwest near 10 mph (17 km/h), and this general motion is expected to continue through Wednesday. A turn toward west is forecast byread more »

Summary for Tropical Storm GREG (EP2/EP072017)

10:49 am Eastern | Weather

...GREG WEAKENS A LITTLE... As of 8:00 AM PDT Tue Jul 25 the center of GREG was located near 15.4, -136.8 with movement WNW at 10 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph. read more »

Hurricane HILARY Graphics

10:43 am Eastern | Weather

5-Day Uncertainty Track last updated Tue, 25 Jul 2017 14:43:41 GMT Wind Speed Probabilities last updated Tue, 25 Jul 2017 15:33:17 GMT read more »

Hurricane Irwin Graphics

10:39 am Eastern | Weather

5-Day Uncertainty Track last updated Tue, 25 Jul 2017 14:39:47 GMT Wind Speed Probabilities last updated Tue, 25 Jul 2017 15:41:35 GMT read more »

Hurricane HILARY Forecast Discussion Number 17

10:39 am Eastern | Weather

Issued at 900 AM MDT Tue Jul 25 2017 000 WTPZ44 KNHC 251439 TCDEP4 Hurricane Hilary Discussion Number 17 NWS National Hurricane Center Miami FL EP092017 900 AM MDT Tue Jul 25 2017 Satellite imagery shows that deep, but somewhat asymmetric, convection continues in the inner core of Hilary. The 1-minute visible imagery from GOES-16 indicates strong convective towers are firing in the northeastern eyewall, then attempting to rotate cyclonically around the center. Still, the eyewall remains open in the southwest quadrant, as suggested in the visible imagery and shown in a recent 1340 UTC SSMIS microwave pass. Intensity estimates remain about the same as overnight, so the initial wind speed will stay at 90 kt. Hilary is forecast to remain in a conducive environment for strengthening during the next day or so. However, the northerly wind shear is not far away, as evidenced by cirrus clouds moving toward the center in the northern semicircle, which could cause the hurricread more »

Hurricane HILARY Wind Speed Probabilities Number 17

10:38 am Eastern | Weather

Issued at 1500 UTC TUE JUL 25 2017 000 FOPZ14 KNHC 251438 PWSEP4 HURRICANE HILARY WIND SPEED PROBABILITIES NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL EP092017 1500 UTC TUE JUL 25 2017 AT 1500Z THE CENTER OF HURRICANE HILARY WAS LOCATED NEAR LATITUDE 15.3 NORTH...LONGITUDE 107.8 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 90 KTS...105 MPH...165 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 HOURS FROM Z TIME read more »

Summary for Hurricane HILARY (EP4/EP092017)

10:38 am Eastern | Weather

...HILARY FORECAST TO BECOME A MAJOR HURRICANE LATER TODAY... As of 9:00 AM MDT Tue Jul 25 the center of HILARY was located near 15.3, -107.8 with movement WNW at 12 mph. The minimum central pressure was 975 mb with maximum sustained winds of about 105 mph. read more »

Hurricane HILARY Public Advisory Number 17

10:38 am Eastern | Weather

Issued at 900 AM MDT Tue Jul 25 2017 000 WTPZ34 KNHC 251437 TCPEP4 BULLETIN Hurricane Hilary Advisory Number 17 NWS National Hurricane Center Miami FL EP092017 900 AM MDT Tue Jul 25 2017 ...HILARY FORECAST TO BECOME A MAJOR HURRICANE LATER TODAY... SUMMARY OF 900 AM MDT...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...15.3N 107.8W ABOUT 540 MI...875 KM SSE OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...975 MB...28.80 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 900 AM MDT (1500 UTC), the center of Hurricane Hilary was located near latitude 15.3 North, longitude 107.8 West. Hilary is moving toward the west-northwest near 12 mph (19 km/h), and this general motion is expected over the next coupread more »

Hurricane HILARY Forecast Advisory Number 17

10:38 am Eastern | Weather

Issued at 1500 UTC TUE JUL 25 2017 000 WTPZ24 KNHC 251437 TCMEP4 HURRICANE HILARY FORECAST/ADVISORY NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL EP092017 1500 UTC TUE JUL 25 2017 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 15.3N 107.8W AT 25/1500Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 10 KT ESTIMATED MINIMUM CENTRAL PRESSURE 975 MB MAX SUSTAINED WINDS 90 KT WITH GUSTS TO 110 KT. 64 KT....... 15NE 10SE 10SW 15NW. 50 KT....... 30NE 20SE 20SW 30NW. 34 KT....... 60NE 60SE 40SW 60NW. 12 FT SEAS..120NE 90SE 90SW 120NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 15.3N 107.8W AT 25/1500Z AT 25/1200Z CENTER WAS LOCATED NEAR 15.2N 107.3W FORECAST VALID 26/0000Z 15.8N 109.5W MAX WIND 100 KT...GUSTS 120 KT. 64 KT... 15NE 10SE 10SW 15NW. 50 KT..read more »

Hurricane Irwin Forecast Discussion Number 13

10:35 am Eastern | Weather

Issued at 800 AM PDT Tue Jul 25 2017 000 WTPZ45 KNHC 251435 TCDEP5 Hurricane Irwin Discussion Number 13 NWS National Hurricane Center Miami FL EP102017 800 AM PDT Tue Jul 25 2017 Recent microwave imagery confirms that Irwin has a well-defined mid-level eye, which has also been apparent in shortwave infrared satellite imagery. On the whole, satellite intensity estimates have risen a little, so Irwin's initial intensity is now set at 70 kt. Various shear analyses indicate that about 15 kt of southerly shear has developed over Irwin, which isn't surprising since microwave data has hinted that the low-level center may be located just a bit south of the mid-level eye. This shear is expected to continue for another 24 hours or so, which will likely prevent Irwin from any additional significant strengthening. After 24 hours, Irwin's proximity to Hurricane Hilary is likely to induce some weakening, as well as the potential for upwelling of colder water due to Irwin's slow read more »

Hurricane Irwin Wind Speed Probabilities Number 13

10:35 am Eastern | Weather

Issued at 1500 UTC TUE JUL 25 2017 000 FOPZ15 KNHC 251435 PWSEP5 HURRICANE IRWIN WIND SPEED PROBABILITIES NUMBER 13 NWS NATIONAL HURRICANE CENTER MIAMI FL EP102017 1500 UTC TUE JUL 25 2017 AT 1500Z THE CENTER OF HURRICANE IRWIN WAS LOCATED NEAR LATITUDE 15.6 NORTH...LONGITUDE 119.4 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 70 KTS...80 MPH...130 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 HOURS FROM Z TIME read more »

Hurricane Irwin Public Advisory Number 13

10:34 am Eastern | Weather

Issued at 800 AM PDT Tue Jul 25 2017 000 WTPZ35 KNHC 251434 TCPEP5 BULLETIN Hurricane Irwin Advisory Number 13 NWS National Hurricane Center Miami FL EP102017 800 AM PDT Tue Jul 25 2017 ...IRWIN A LITTLE STRONGER... SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...15.6N 119.4W ABOUT 800 MI...1285 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 6 MPH...9 KM/H MINIMUM CENTRAL PRESSURE...986 MB...29.12 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 AM PDT (1500 UTC), the center of Hurricane Irwin was located near latitude 15.6 North, longitude 119.4 West. Irwin is moving toward the west near 6 mph (9 km/h). A slow west-southwestward to southwestward motion is expected during the next couple of days. Maximum sread more »

Summary for Hurricane Irwin (EP5/EP102017)

10:34 am Eastern | Weather

...IRWIN A LITTLE STRONGER... As of 8:00 AM PDT Tue Jul 25 the center of Irwin was located near 15.6, -119.4 with movement W at 6 mph. The minimum central pressure was 986 mb with maximum sustained winds of about 80 mph. read more »

Hurricane Irwin Forecast Advisory Number 13

10:33 am Eastern | Weather

Issued at 1500 UTC TUE JUL 25 2017 000 WTPZ25 KNHC 251433 TCMEP5 HURRICANE IRWIN FORECAST/ADVISORY NUMBER 13 NWS NATIONAL HURRICANE CENTER MIAMI FL EP102017 1500 UTC TUE JUL 25 2017 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 15.6N 119.4W AT 25/1500Z POSITION ACCURATE WITHIN 25 NM PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 5 KT ESTIMATED MINIMUM CENTRAL PRESSURE 986 MB MAX SUSTAINED WINDS 70 KT WITH GUSTS TO 85 KT. 64 KT....... 15NE 0SE 0SW 15NW. 50 KT....... 30NE 20SE 20SW 30NW. 34 KT....... 80NE 50SE 40SW 50NW. 12 FT SEAS.. 90NE 75SE 75SW 90NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 15.6N 119.4W AT 25/1500Z AT 25/1200Z CENTER WAS LOCATED NEAR 15.6N 119.1W FORECAST VALID 26/0000Z 15.2N 120.2W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 15NE 0SE 0SW 15NW. 50 KT... 30NE 20Sread more »

GDACS daily newsletter for 25/07/2017

25 Jul 02:11 | Weather

Global Disaster Alert and Coordination System read more »

Report of Solar Geophysical Activity (RSGA)

24 Jul 18:01 | SciTech

Joint USAF/NOAA Solar Geophysical Activity Report and Forecastread more »

Eastern North Pacific Tropical Weather Outlook

24 Jul 13:45 | Weather

000 ABPZ20 KNHC 241745 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 1100 AM PDT Mon Jul 24 2017 For the eastern North Pacific...east of 140 degrees west longitude: The National Hurricane Center is issuing advisories on Tropical Storm Greg, located more than 1500 miles west-southwest of the southern tip of the Baja California peninsula, on Hurricane Hilary, located several hundred miles south of Manzanillo Mexico, and on Tropical Storm Irwin, located several hundred miles southwest of the southern tip of the Baja California peninsula. An area of low pressure could form several hundred miles south of Mexico in a couple of days. Development, if any, of this system is expected to be slow to occur due to strong upper-level winds from Hurricane Hilary. The system is forecast to move west- northwestward at about 5 to 10 mph for the next several days.read more »

Tropical Storm IRWIN Graphics

24 Jul 11:03 | Weather

5-Day Uncertainty Track last updated Mon, 24 Jul 2017 15:03:42 GMT Wind Speed Probabilities last updated Mon, 24 Jul 2017 15:42:35 GMT read more »

Tropical Storm IRWIN Wind Speed Probabilities Number 9

24 Jul 10:58 | Weather

Issued at 1500 UTC MON JUL 24 2017 000 FOPZ15 KNHC 241458 PWSEP5 TROPICAL STORM IRWIN WIND SPEED PROBABILITIES NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL EP102017 1500 UTC MON JUL 24 2017 AT 1500Z THE CENTER OF TROPICAL STORM IRWIN WAS LOCATED NEAR LATITUDE 14.8 NORTH...LONGITUDE 117.5 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 50 KTS...60 MPH...95 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 HOURS FROM Z TIME read more »

Tropical Storm IRWIN Forecast Discussion Number 9

24 Jul 10:58 | Weather

Issued at 800 AM PDT Mon Jul 24 2017 000 WTPZ45 KNHC 241458 TCDEP5 Tropical Storm Irwin Discussion Number 9 NWS National Hurricane Center Miami FL EP102017 800 AM PDT Mon Jul 24 2017 Irwin's structure continues to improve, with the low-level center embedded beneath a CDO feature that has persisted for the past several hours. In addition, recent microwave data have revealed the formation of a mid-level eye. Dvorak satellite intensity estimates now range between T3.0/45 kt and T3.5/55 kt, so the initial intensity is raised accordingly to 50 kt. For once, the track forecast for a tropical cyclone is more challenging and more uncertain that its intensity forecast. Irwin is expected to have some binary interaction with Hurricane Hilary beginning in about 3 days, but the amount of interaction is still highly uncertain. The ECMWF, UKMET, and Canadian models all show a strong Fujiwhara interaction, with Irwin swinging to the east and northeast of Hilary by day 5. The GFread more »

Summary for Tropical Storm IRWIN (EP5/EP102017)

24 Jul 10:58 | Weather

...IRWIN STRENGTHENS A LITTLE MORE... ...FORECAST TO BECOME A HURRICANE BY TUESDAY... As of 8:00 AM PDT Mon Jul 24 the center of IRWIN was located near 14.8, -117.5 with movement W at 3 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 60 mph. read more »

Tropical Storm IRWIN Forecast Advisory Number 9

24 Jul 10:58 | Weather

Issued at 1500 UTC MON JUL 24 2017 000 WTPZ25 KNHC 241458 TCMEP5 TROPICAL STORM IRWIN FORECAST/ADVISORY NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL EP102017 1500 UTC MON JUL 24 2017 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 14.8N 117.5W AT 24/1500Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 3 KT ESTIMATED MINIMUM CENTRAL PRESSURE 999 MB MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT. 50 KT....... 20NE 0SE 0SW 0NW. 34 KT....... 70NE 30SE 20SW 30NW. 12 FT SEAS.. 75NE 30SE 30SW 75NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 14.8N 117.5W AT 24/1500Z AT 24/1200Z CENTER WAS LOCATED NEAR 14.8N 117.3W FORECAST VALID 25/0000Z 14.8N 117.9W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 30NE 20SE 20SW 20NW. 34 KT... 70NE 40SE 30SW 40NW. FORECAST Vread more »

Tropical Storm IRWIN Public Advisory Number 9

24 Jul 10:58 | Weather

Issued at 800 AM PDT Mon Jul 24 2017 000 WTPZ35 KNHC 241458 TCPEP5 BULLETIN Tropical Storm Irwin Advisory Number 9 NWS National Hurricane Center Miami FL EP102017 800 AM PDT Mon Jul 24 2017 ...IRWIN STRENGTHENS A LITTLE MORE... ...FORECAST TO BECOME A HURRICANE BY TUESDAY... SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...14.8N 117.5W ABOUT 750 MI...1205 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 3 MPH...6 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 AM PDT (1500 UTC), the center of Tropical Storm Irwin was located near latitude 14.8 North, longitude 117.5 West. Irwin is moving toward the west near 3 mph (6 km/h). A slow, generally westward motion is exread more »

Hurricane HILARY Graphics

24 Jul 10:47 | Weather

5-Day Uncertainty Track last updated Mon, 24 Jul 2017 14:47:01 GMT Wind Speed Probabilities last updated Mon, 24 Jul 2017 15:34:20 GMT read more »

Hurricane HILARY Forecast Discussion Number 13

24 Jul 10:43 | Weather

Issued at 1000 AM CDT Mon Jul 24 2017 000 WTPZ44 KNHC 241443 TCDEP4 Hurricane Hilary Discussion Number 13 NWS National Hurricane Center Miami FL EP092017 1000 AM CDT Mon Jul 24 2017 Satellite images indicate that Hilary has a small central core of convection, with both the visible and infrared channels suggesting that an eye is trying to form. Microwave data also show an incomplete eyewall, though the system is so small that most sensors don't have the necessary resolution to really see the center. The initial wind speed is set to 70 kt, a bit above the satellite fixes given the recent upward organization trend. Interestingly, despite the hurricane having intensified about 30 kt in the past 24 hours, model guidance this morning really backed off on the future strengthening of Hilary, with most guidance no longer showing it becoming a major hurricane. It is difficult to believe the new model runs because the environment seems similarly favorable for at least the nextread more »

Hurricane HILARY Wind Speed Probabilities Number 13

24 Jul 10:41 | Weather

Issued at 1500 UTC MON JUL 24 2017 000 FOPZ14 KNHC 241441 PWSEP4 HURRICANE HILARY WIND SPEED PROBABILITIES NUMBER 13 NWS NATIONAL HURRICANE CENTER MIAMI FL EP092017 1500 UTC MON JUL 24 2017 AT 1500Z THE CENTER OF HURRICANE HILARY WAS LOCATED NEAR LATITUDE 14.1 NORTH...LONGITUDE 104.2 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 70 KTS...80 MPH...130 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 HOURS FROM Z TIME read more »

Summary for Hurricane HILARY (EP4/EP092017)

24 Jul 10:41 | Weather

...HILARY FORECAST TO BECOME A MAJOR HURRICANE ON TUESDAY... As of 10:00 AM CDT Mon Jul 24 the center of HILARY was located near 14.1, -104.2 with movement WNW at 8 mph. The minimum central pressure was 989 mb with maximum sustained winds of about 80 mph. read more »

Hurricane HILARY Public Advisory Number 13

24 Jul 10:41 | Weather

Issued at 1000 AM CDT Mon Jul 24 2017 000 WTPZ34 KNHC 241441 TCPEP4 BULLETIN Hurricane Hilary Advisory Number 13 NWS National Hurricane Center Miami FL EP092017 1000 AM CDT Mon Jul 24 2017 ...HILARY FORECAST TO BECOME A MAJOR HURRICANE ON TUESDAY... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...14.1N 104.2W ABOUT 340 MI...545 KM S OF MANZANILLO MEXICO MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 1000 AM CDT (1500 UTC), the center of Hurricane Hilary was located near latitude 14.1 North, longitude 104.2 West. Hilary is moving toward the west-northwest near 8 mph (13 km/h), and this general motion with some increase in forward speed is expected oread more »

Hurricane HILARY Forecast Advisory Number 13

24 Jul 10:41 | Weather

Issued at 1500 UTC MON JUL 24 2017 000 WTPZ24 KNHC 241441 TCMEP4 HURRICANE HILARY FORECAST/ADVISORY NUMBER 13 NWS NATIONAL HURRICANE CENTER MIAMI FL EP092017 1500 UTC MON JUL 24 2017 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 14.1N 104.2W AT 24/1500Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 7 KT ESTIMATED MINIMUM CENTRAL PRESSURE 989 MB MAX SUSTAINED WINDS 70 KT WITH GUSTS TO 85 KT. 64 KT....... 10NE 0SE 0SW 10NW. 50 KT....... 20NE 20SE 10SW 20NW. 34 KT....... 50NE 40SE 30SW 50NW. 12 FT SEAS.. 60NE 45SE 45SW 60NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 14.1N 104.2W AT 24/1500Z AT 24/1200Z CENTER WAS LOCATED NEAR 14.0N 104.0W FORECAST VALID 25/0000Z 14.6N 105.4W MAX WIND 80 KT...GUSTS 100 KT. 64 KT... 15NE 10SE 10SW 15NW. 50 KT..read more »

Tropical Storm Greg Graphics

24 Jul 10:40 | Weather

5-Day Uncertainty Track last updated Mon, 24 Jul 2017 14:40:45 GMT Wind Speed Probabilities last updated Mon, 24 Jul 2017 15:26:19 GMT read more »

Tropical Storm Greg Forecast Discussion Number 29

24 Jul 10:36 | Weather

Issued at 800 AM PDT Mon Jul 24 2017 000 WTPZ42 KNHC 241436 TCDEP2 Tropical Storm Greg Discussion Number 29 NWS National Hurricane Center Miami FL EP072017 800 AM PDT Mon Jul 24 2017 Greg's convective structure is gradually deteriorating, likely due to very dry air in the surrounding atmosphere. However, the initial intensity remains 40 kt on this advisory, primarily since subjective and objective final-T numbers still range between T2.0 and T3.0. Along with the dry environment, deep-layer vertical shear is expected to turn out of the west and increase in 36-48 hours, and Greg will be moving over marginally warm waters of around 26 deg C. Therefore, gradual weakening is anticipated, and Greg will likely be a tropical depression in about 48 hours and then a remnant low by day 3. This forecast is just an update of the previous one and is very close to the ICON intensity consensus. Based on the latest center fixes, Greg's motion has been oscillating between westward read more »

Tropical Storm Greg Public Advisory Number 29

24 Jul 10:35 | Weather

Issued at 800 AM PDT Mon Jul 24 2017 000 WTPZ32 KNHC 241435 TCPEP2 BULLETIN Tropical Storm Greg Advisory Number 29 NWS National Hurricane Center Miami FL EP072017 800 AM PDT Mon Jul 24 2017 ...GREG EXPECTED TO WEAKEN DURING THE NEXT FEW DAYS... SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...14.6N 133.2W ABOUT 1515 MI...2440 KM E OF SOUTH POINT HAWAII ABOUT 1625 MI...2615 KM WSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 AM PDT (1500 UTC), the center of Tropical Storm Greg was located near latitude 14.6 North, longitude 133.2 West. Greg is moving toward the west near 12 mph (19 km/h). A west-northwestwaread more »

Tropical Storm Greg Wind Speed Probabilities Number 29

24 Jul 10:35 | Weather

Issued at 1500 UTC MON JUL 24 2017 000 FOPZ12 KNHC 241435 PWSEP2 TROPICAL STORM GREG WIND SPEED PROBABILITIES NUMBER 29 NWS NATIONAL HURRICANE CENTER MIAMI FL EP072017 1500 UTC MON JUL 24 2017 AT 1500Z THE CENTER OF TROPICAL STORM GREG WAS LOCATED NEAR LATITUDE 14.6 NORTH...LONGITUDE 133.2 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 40 KTS...45 MPH...75 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 HOURS FROM Z TIME read more »

Summary for Tropical Storm Greg (EP2/EP072017)

24 Jul 10:35 | Weather

...GREG EXPECTED TO WEAKEN DURING THE NEXT FEW DAYS... As of 8:00 AM PDT Mon Jul 24 the center of Greg was located near 14.6, -133.2 with movement W at 12 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 45 mph. read more »

Tropical Storm Greg Forecast Advisory Number 29

24 Jul 10:34 | Weather

Issued at 1500 UTC MON JUL 24 2017 000 WTPZ22 KNHC 241434 TCMEP2 TROPICAL STORM GREG FORECAST/ADVISORY NUMBER 29 NWS NATIONAL HURRICANE CENTER MIAMI FL EP072017 1500 UTC MON JUL 24 2017 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 14.6N 133.2W AT 24/1500Z POSITION ACCURATE WITHIN 25 NM PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 10 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT. 34 KT....... 0NE 0SE 0SW 70NW. 12 FT SEAS.. 60NE 30SE 60SW 90NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 14.6N 133.2W AT 24/1500Z AT 24/1200Z CENTER WAS LOCATED NEAR 14.5N 132.8W FORECAST VALID 25/0000Z 15.1N 134.5W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 0NE 0SE 0SW 60NW. FORECAST VALID 25/1200Z 15.9N 135.8W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 30Nread more »

GDACS daily newsletter for 24/07/2017

24 Jul 02:12 | World

Global Disaster Alert and Coordination System read more »

Space Weather Outlook

23 Jul 23:23 | Weather

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center read more »

Report of Solar Geophysical Activity (RSGA)

23 Jul 18:01 | SciTech

Joint USAF/NOAA Solar Geophysical Activity Report and Forecastread more »

Tropical Storm Irwin Graphics

23 Jul 10:59 | U.S. News

5-Day Uncertainty Track last updated Sun, 23 Jul 2017 14:59:41 GMT Wind Speed Probabilities last updated Sun, 23 Jul 2017 15:35:58 GMT read more »

Tropical Storm Irwin Forecast Discussion Number 5

23 Jul 10:56 | U.S. News

Issued at 800 AM PDT Sun Jul 23 2017 000 WTPZ45 KNHC 231456 TCDEP5 Tropical Storm Irwin Discussion Number 5 NWS National Hurricane Center Miami FL EP102017 800 AM PDT Sun Jul 23 2017 Irwin's center is exposed to the north and west of its associated deep convection due to about 15 kt of northerly shear. Subjective and objective Dvorak intensity estimates are a consensus T2.5, so 35 kt will remain the initial intensity for this advisory. The initial motion remains westward at 280/6 kt, with Irwin located south of a weak low-level ridge and almost midway between Tropical Storms Greg and Hilary. This orientation should cause Irwin to maintain a westward, albeit much slower, motion during the next several days. However, once Greg degenerates into a remnant low in about 4 days, a binary interaction between a stronger Irwin and Hilary is more likely to occur, which could force Irwin to turn west-southwestward at the end of the forecast period. There is some notable spreread more »

Tropical Storm Irwin Wind Speed Probabilities Number 5

23 Jul 10:56 | Weather

Issued at 1500 UTC SUN JUL 23 2017 ZCZC MIAPWSEP5 ALL TTAA00 KNHC DDHHMM TROPICAL STORM IRWIN WIND SPEED PROBABILITIES NUMBER 5 NWS NATIONAL HURRICANE CENTER MIAMI FL EP102017 1500 UTC SUN JUL 23 2017 AT 1500Z THE CENTER OF TROPICAL STORM IRWIN WAS LOCATED NEAR LATITUDE 15.0 NORTH...LONGITUDE 115.8 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 35 KTS...40 MPH...65 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDread more »

Tropical Storm Irwin Public Advisory Number 5

23 Jul 10:55 | Weather

Issued at 800 AM PDT Sun Jul 23 2017 000 WTPZ35 KNHC 231455 TCPEP5 BULLETIN Tropical Storm Irwin Advisory Number 5 NWS National Hurricane Center Miami FL EP102017 800 AM PDT Sun Jul 23 2017 ...IRWIN FORECAST TO STRENGTHEN DURING THE NEXT FEW DAYS... SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...15.0N 115.8W ABOUT 670 MI...1075 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 AM PDT (1500 UTC), the center of Tropical Storm Irwin was located near latitude 15.0 North, longitude 115.8 West. Irwin is moving toward the west near 7 mph (11 km/h). A westward motion at a slower forward speed is expected duringread more »

Summary for Tropical Storm Irwin (EP5/EP102017)

23 Jul 10:55 | Weather

...IRWIN FORECAST TO STRENGTHEN DURING THE NEXT FEW DAYS... As of 8:00 AM PDT Sun Jul 23 the center of Irwin was located near 15.0, -115.8 with movement W at 7 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 40 mph. read more »

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