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Tropical Depression Joyce Forecast Advisory Number 11
2024-09-30 04:50:34| National Hurricane Center (Atlantic)
Issued at 0300 UTC MON SEP 30 2024 000 WTNT21 KNHC 300250 TCMAT1 TROPICAL DEPRESSION JOYCE FORECAST/ADVISORY NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL AL112024 0300 UTC MON SEP 30 2024 TROPICAL DEPRESSION CENTER LOCATED NEAR 22.3N 49.6W AT 30/0300Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT 5 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. 12 FT SEAS.. 60NE 0SE 0SW 30NW. 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 22.3N 49.6W AT 30/0300Z AT 30/0000Z CENTER WAS LOCATED NEAR 22.3N 49.4W FORECAST VALID 30/1200Z 22.9N 49.8W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 01/0000Z 23.6N 49.8W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 01/1200Z 24.5N 49.8W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 02/0000Z 25.7N 49.6W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 02/1200Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 22.3N 49.6W NEXT ADVISORY AT 30/0900Z $$ FORECASTER REINHART
Category:Transportation and Logistics
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Tropical Storm Isaac Graphics
2024-09-30 04:41:47| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Mon, 30 Sep 2024 02:41:47 GMT Wind Speed Probabilities last updated Mon, 30 Sep 2024 02:41:47 GMT
Category: Transportation and Logistics
Tropical Storm Isaac Forecast Discussion Number 17
2024-09-30 04:40:35| National Hurricane Center (Atlantic)
Issued at 300 AM GMT Mon Sep 30 2024 000 WTNT45 KNHC 300240 TCDAT5 Tropical Storm Isaac Discussion Number 17 NWS National Hurricane Center Miami FL AL102024 300 AM GMT Mon Sep 30 2024 Isaac's expected transition to an extratropical cyclone continues. The tropical storm's cloud pattern has become asymmetrical, with cold clouds limited mostly to the north of the surface center, and it is beginning to take the form of an extratropical rain shield. Partial ASCAT data indicated maximum winds of 45-50 kt, supporting an intensity of 55 kt after accounting for undersampling. This also agrees with the most recent tropical Dvorak analysis from TAFB. The tropical storm should become fully extratropical later today. Models unanimously indicated that Isaac will continue to gradually spin down as a post-tropical low during the next several days. By 96 h, the center of Isaac is expected to become poorly-defined as it interacts with another large non-tropical low pressure system over the north Atlantic. Models are in reasonably good agreement for Isaac's track forecast. It should stay on a generally northeastward track for the next day or so. Beyond that time, there is some disagreement on exactly how soon Isaac's post-tropical remnants will turn north-northeastward, however all of the guidance shows the same generally idea that Isaac will turn toward a broad trough over the north Atlantic. No significant changes were made to the NHC forecast, which is based on the IVCN consensus for intensity and the TVCN consensus for the track. FORECAST POSITIONS AND MAX WINDS INIT 30/0300Z 44.4N 32.8W 55 KT 65 MPH 12H 30/1200Z 45.1N 30.1W 50 KT 60 MPH...POST-TROP/EXTRATROP 24H 01/0000Z 46.7N 26.4W 45 KT 50 MPH...POST-TROP/EXTRATROP 36H 01/1200Z 48.6N 24.1W 40 KT 45 MPH...POST-TROP/EXTRATROP 48H 02/0000Z 50.7N 23.1W 40 KT 45 MPH...POST-TROP/EXTRATROP 60H 02/1200Z 52.4N 22.4W 35 KT 40 MPH...POST-TROP/EXTRATROP 72H 03/0000Z 54.4N 20.8W 35 KT 40 MPH...POST-TROP/EXTRATROP 96H 04/0000Z...DISSIPATED $$ Forecaster D. Zelinsky
Category: Transportation and Logistics