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Hurricane Irma Public Advisory Number 5
2017-08-31 16:48:29| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Thu Aug 31 2017 000 WTNT31 KNHC 311448 TCPAT1 BULLETIN Hurricane Irma Advisory Number 5 NWS National Hurricane Center Miami FL AL112017 1100 AM AST Thu Aug 31 2017 ...HURRICANE IRMA RAPIDLY INTENSIFYING OVER THE EASTERN ATLANTIC... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...16.9N 33.8W ABOUT 650 MI...1050 KM W OF THE CABO VERDE ISLANDS ABOUT 1845 MI...2975 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...979 MB...28.91 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 1100 AM AST (1500 UTC), the center of Hurricane Irma was located near latitude 16.9 North, longitude 33.8 West. Irma is moving toward the west-northwest near 10 mph (17 km/h). This general motion is forecast through early Friday, followed by a generally westward motion on Saturday. Maximum sustained winds have increased to near 100 mph (155 km/h) with higher gusts. Irma is forecast to become a major hurricane by tonight and is expected to be an extremely dangerous hurricane for the next several days. Hurricane-force winds extend outward up to 15 miles (30 km) from the center and tropical-storm-force winds extend outward up to 80 miles (130 km). The estimated minimum central pressure is 979 mb (28.91 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Blake
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Hurricane Irma Forecast Advisory Number 5
2017-08-31 16:48:29| National Hurricane Center (Atlantic)
Issued at 1500 UTC THU AUG 31 2017 000 WTNT21 KNHC 311448 TCMAT1 HURRICANE IRMA FORECAST/ADVISORY NUMBER 5 NWS NATIONAL HURRICANE CENTER MIAMI FL AL112017 1500 UTC THU AUG 31 2017 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 16.9N 33.8W AT 31/1500Z POSITION ACCURATE WITHIN 10 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 9 KT ESTIMATED MINIMUM CENTRAL PRESSURE 979 MB EYE DIAMETER 10 NM MAX SUSTAINED WINDS 85 KT WITH GUSTS TO 105 KT. 64 KT....... 15NE 10SE 10SW 10NW. 50 KT....... 30NE 20SE 20SW 30NW. 34 KT....... 70NE 50SE 40SW 60NW. 12 FT SEAS.. 90NE 60SE 30SW 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 16.9N 33.8W AT 31/1500Z AT 31/1200Z CENTER WAS LOCATED NEAR 16.7N 33.4W FORECAST VALID 01/0000Z 17.5N 35.2W MAX WIND 100 KT...GUSTS 120 KT. 64 KT... 20NE 10SE 10SW 15NW. 50 KT... 40NE 30SE 20SW 30NW. 34 KT... 80NE 60SE 50SW 70NW. FORECAST VALID 01/1200Z 18.0N 37.1W MAX WIND 105 KT...GUSTS 130 KT. 64 KT... 25NE 20SE 15SW 20NW. 50 KT... 40NE 40SE 30SW 40NW. 34 KT... 90NE 70SE 60SW 80NW. FORECAST VALID 02/0000Z 18.2N 39.2W MAX WIND 105 KT...GUSTS 130 KT. 64 KT... 30NE 20SE 15SW 20NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...100NE 70SE 60SW 90NW. FORECAST VALID 02/1200Z 18.1N 41.6W MAX WIND 105 KT...GUSTS 130 KT. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...100NE 70SE 60SW 100NW. FORECAST VALID 03/1200Z 17.0N 46.5W MAX WIND 110 KT...GUSTS 135 KT. 50 KT... 60NE 40SE 40SW 50NW. 34 KT...120NE 80SE 70SW 110NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 04/1200Z 16.0N 51.0W MAX WIND 110 KT...GUSTS 135 KT. OUTLOOK VALID 05/1200Z 16.0N 55.5W MAX WIND 115 KT...GUSTS 140 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.9N 33.8W NEXT ADVISORY AT 31/2100Z $$ FORECASTER BLAKE
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Tropical Storm Irma Graphics
2017-08-31 10:50:48| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Thu, 31 Aug 2017 08:50:48 GMT Wind Speed Probabilities last updated Thu, 31 Aug 2017 09:23:04 GMT
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Summary for Tropical Storm Irma (AT1/AL112017)
2017-08-31 10:44:57| National Hurricane Center (Atlantic)
...IRMA CLOSE TO HURRICANE STRENGTH... As of 5:00 AM AST Thu Aug 31 the center of Irma was located near 16.5, -32.9 with movement W at 12 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 70 mph.
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Tropical Storm Irma Public Advisory Number 4
2017-08-31 10:44:57| National Hurricane Center (Atlantic)
Issued at 500 AM AST Thu Aug 31 2017 000 WTNT31 KNHC 310844 TCPAT1 BULLETIN Tropical Storm Irma Advisory Number 4 NWS National Hurricane Center Miami FL AL112017 500 AM AST Thu Aug 31 2017 ...IRMA CLOSE TO HURRICANE STRENGTH... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...16.5N 32.9W ABOUT 590 MI...950 KM W OF THE CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 500 AM AST (0900 UTC), the center of Tropical Storm Irma was located near latitude 16.5 North, longitude 32.9 West. Irma is moving toward the west near 12 mph (19 km/h). A west-northwestward motion is expected today and tonight, followed by a generally westward motion on Friday. Maximum sustained winds have increased to near 70 mph (110 km/h) with higher gusts. Additional strengthening is forecast, and Irma is likely to become a hurricane later today. Tropical-storm-force winds extend outward up to 60 miles (95 km) from the center. The estimated minimum central pressure is 997 mb (29.44 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Pasch
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