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Tropical Storm Kate Forecast Advisory Number 13

2021-08-31 10:36:43| National Hurricane Center (Atlantic)

Issued at 0900 UTC TUE AUG 31 2021 000 WTNT25 KNHC 310836 TCMAT5 TROPICAL STORM KATE FORECAST/ADVISORY NUMBER 13 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102021 0900 UTC TUE AUG 31 2021 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 23.0N 50.9W AT 31/0900Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTH OR 360 DEGREES AT 4 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 40NE 40SE 0SW 0NW. 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 23.0N 50.9W AT 31/0900Z AT 31/0600Z CENTER WAS LOCATED NEAR 22.8N 50.9W FORECAST VALID 31/1800Z 23.9N 50.9W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 0NW. FORECAST VALID 01/0600Z 25.2N 51.5W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 0NW. FORECAST VALID 01/1800Z 26.6N 52.4W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 0NW. FORECAST VALID 02/0600Z 28.3N 53.4W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 0NW. FORECAST VALID 02/1800Z 29.9N 54.2W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 0NW. FORECAST VALID 03/0600Z 31.5N 54.8W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 0NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 04/0600Z 35.1N 53.6W MAX WIND 35 KT...GUSTS 45 KT. OUTLOOK VALID 05/0600Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.0N 50.9W NEXT ADVISORY AT 31/1500Z $$ FORECASTER STEWART

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Tropical Depression Ida Public Advisory Number 20

2021-08-31 04:48:51| National Hurricane Center (Atlantic)

The NHC has issued its final advisory on this system. Public Advisories from the Weather Prediction Center will provide updates as long as the system remains a flood threat. Issued at 1000 PM CDT Mon Aug 30 2021

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Tropical Storm Kate Public Advisory Number 12

2021-08-31 04:32:39| National Hurricane Center (Atlantic)

Issued at 1100 PM AST Mon Aug 30 2021 000 WTNT35 KNHC 310232 TCPAT5 BULLETIN Tropical Storm Kate Advisory Number 12 NWS National Hurricane Center Miami FL AL102021 1100 PM AST Mon Aug 30 2021 ...KATE REMAINS A POORLY ORGANIZED TROPICAL STORM OVER THE CENTRAL ATLANTIC. SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...22.7N 50.9W ABOUT 805 MI...1295 KM ENE OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...N OR 360 DEGREES AT 6 MPH...9 KM/H MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM AST (0300 UTC), the center of Tropical Storm Kate was located near latitude 22.7 North, longitude 50.9 West. Kate is moving toward the north near 6 mph (9 km/h), and this motion is expected into Tuesday. A northwestward motion is forecast late Tuesday and Wednesday. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Little change in strength is forecast during the next few days. Tropical-storm-force winds extend outward up to 45 miles (75 km) from the center. The estimated minimum central pressure is 1006 mb (29.71 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. $$ Forecaster Cangialosi

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Tropical Storm Kate Forecast Advisory Number 12

2021-08-31 04:32:09| National Hurricane Center (Atlantic)

Issued at 0300 UTC TUE AUG 31 2021 000 WTNT25 KNHC 310232 TCMAT5 TROPICAL STORM KATE FORECAST/ADVISORY NUMBER 12 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102021 0300 UTC TUE AUG 31 2021 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 22.7N 50.9W AT 31/0300Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTH OR 360 DEGREES AT 5 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 40NE 40SE 0SW 0NW. 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 22.7N 50.9W AT 31/0300Z AT 31/0000Z CENTER WAS LOCATED NEAR 22.6N 50.9W FORECAST VALID 31/1200Z 23.6N 50.7W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 01/0000Z 24.8N 50.9W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 01/1200Z 26.1N 51.8W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 0NW. FORECAST VALID 02/0000Z 27.6N 52.9W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 0NW. FORECAST VALID 02/1200Z 29.1N 54.0W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 0NW. FORECAST VALID 03/0000Z 30.4N 54.8W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 0NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 04/0000Z 33.9N 54.6W MAX WIND 35 KT...GUSTS 45 KT. OUTLOOK VALID 05/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 22.7N 50.9W NEXT ADVISORY AT 31/0900Z $$ FORECASTER CANGIALOSI

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Tropical Depression Ida Public Advisory Number 19

2021-08-30 22:37:33| National Hurricane Center (Atlantic)

Issued at 400 PM CDT Mon Aug 30 2021 000 WTNT34 KNHC 302037 TCPAT4 BULLETIN Tropical Depression Ida Advisory Number 19 NWS National Hurricane Center Miami FL AL092021 400 PM CDT Mon Aug 30 2021 ...IDA BECOMES A TROPICAL DEPRESSION OVER MISSISSIPPI... ...HEAVY RAINFALL AND FLASH FLOODING THREAT CONTINUES TO SPREAD INLAND... SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...32.6N 90.3W ABOUT 20 MI...35 KM NNW OF JACKSON MISSISSIPPI MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NNE OR 20 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: All Tropical Storm and Storm Surge Warnings have been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: There are no coastal watches and warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 400 PM CDT (2100 UTC), the center of Tropical Depression Ida was located near latitude 32.6 North, longitude 90.3 West. The depression is moving toward the north-northeast near 9 mph (15 km/h). A faster northeastward motion is expected tonight through Wednesday. On the forecast track, the center of Ida will move farther inland over central and northeastern Mississippi tonight. Ida is then forecast to move across the Tennessee Valley on Tuesday and near the central Appalachians on Wednesday. Maximum sustained winds have decreased to near 35 mph (55 km/h) with higher gusts. Additional weakening is forecast during the next day or so. The minimum central pressure estimated from surface observations is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Ida can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the web at hurricanes.gov/graphics_at4.shtml?key_messages. STORM SURGE: Water levels along the northern Gulf coast should continue to subside through this evening. RAINFALL: Through Tuesday morning across portions of southeast Louisiana into far southern Mississippi, Ida will produce additional rainfall totals of 2 to 4 inches with localized higher amounts possible. Storm total rainfall accumulations of 10 to 18 inches with isolated maximum amounts of 24 inches is expected. Heavy rain combined with storm surge has resulted in catastrophic impacts along the southeast coast of Louisiana with considerable flash flooding and riverine flooding continuing farther inland. Ida will continue to turn northeast this evening and is forecast to track across the Middle Tennessee Valley, Ohio Valley and Mid-Atlantic through Wednesday, producing the following rainfall totals: Coastal Alabama to the far western Florida panhandle: An additional 3 to 6 inches resulting in storm total accumulations of 6 to 12 inches with isolated maximum amounts of 15 inches, today through Tuesday morning. Central Mississippi into far western Alabama: 4 to 8 inches with isolated maximum amounts of 12 inches, today through tonight. Middle Tennessee Valley, Ohio Valley, Central/Southern Appalachians into the Mid-Atlantic: 3 to 6 inches with isolated higher amounts, Tuesday into Wednesday. Southern New England: 2 to 4 inches with isolated higher amounts, Wednesday into Thursday. Considerable flash flooding is possible from the Lower Mississippi Valley through the Middle Tennessee Valley, Ohio Valley, Central/Southern Appalachians, and into the Mid-Atlantic. Widespread minor to isolated major riverine flooding is occurring or forecast from the Lower Mississippi Valley into far western Alabama. Rivers will remain elevated into next week. TORNADOES: A few tornadoes are possible through tonight, mainly across far southeast Mississippi, the southern half of Alabama, and the western Florida Panhandle. The threat for a few tornadoes will shift east on Tuesday and become centered across eastern Alabama, western Georgia, and the Florida Panhandle. SURF: Swells will continue to affect portions of the northern Gulf coast through this evening. These swells are likely to cause life- threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on Ida. Future information on Ida can be found in Public Advisories issued by the Weather Prediction Center beginning at 10 PM CDT, under AWIPS header TCPAT4, WMO header WTNT34 KWNH, and on the web at http://www.wpc.ncep.noaa.gov. $$ Forecaster Brown

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