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Tropical Depression Laura Public Advisory Number 36

2020-08-28 23:07:16| 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 500 PM EDT Fri Aug 28 2020

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Post-Tropical Cyclone Hernan Public Advisory Number 11

2020-08-28 22:33:08| National Hurricane Center (East Pacific)

Issued at 300 PM MDT Fri Aug 28 2020 000 WTPZ33 KNHC 282032 TCPEP3 BULLETIN Post-Tropical Cyclone Hernan Advisory Number 11 NWS National Hurricane Center Miami FL EP132020 300 PM MDT Fri Aug 28 2020 ...HERNAN DEGENERATES TO A BROAD LOW PRESSURE AREA... ...THIS IS THE LAST ADVISORY... SUMMARY OF 300 PM MDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...23.2N 110.1W ABOUT 25 MI...40 KM NNW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 300 PM MDT (2100 UTC), the center of Post-Tropical Cyclone Hernan was located near latitude 23.2 North, longitude 110.1 West. The post-tropical cyclone is moving toward the west near 14 mph (22 km/h) and this general motion is expected to continue until the system dissipates west of the southern portion of the Baja California peninsula tonight or on Saturday. Maximum sustained winds are near 30 mph (45 km/h) with higher gusts. The low pressure area is expected to dissipate tonight or Saturday. The estimated minimum central pressure is 1008 mb (29.77 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on this system. For additional information on the remnant low please see High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php $$ Forecaster Beven

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Post-Tropical Cyclone Hernan Forecast Advisory Number 11

2020-08-28 22:32:37| National Hurricane Center (East Pacific)

Issued at 2100 UTC FRI AUG 28 2020 000 WTPZ23 KNHC 282032 TCMEP3 POST-TROPICAL CYCLONE HERNAN FORECAST/ADVISORY NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL EP132020 2100 UTC FRI AUG 28 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. POST-TROPICAL CYCLONE CENTER LOCATED NEAR 23.2N 110.1W AT 28/2100Z POSITION ACCURATE WITHIN 40 NM PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 12 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB MAX SUSTAINED WINDS 25 KT WITH GUSTS TO 35 KT. 12 FT SEAS.. 60NE 120SE 90SW 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 23.2N 110.1W AT 28/2100Z AT 28/1800Z CENTER WAS LOCATED NEAR 23.1N 109.5W FORECAST VALID 29/0600Z 23.3N 111.8W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 29/1800Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.2N 110.1W THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER ON THIS SYSTEM. FOR ADDITIONAL INFORMATION ON THE REMNANT LOW PLEASE SEE HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFEPI AND WMO HEADER FZPN02 KWBC. $$ FORECASTER BEVEN

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Tropical Storm Iselle Public Advisory Number 10

2020-08-28 22:32:07| National Hurricane Center (East Pacific)

Issued at 200 PM PDT Fri Aug 28 2020 000 WTPZ34 KNHC 282032 TCPEP4 BULLETIN Tropical Storm Iselle Advisory Number 10 NWS National Hurricane Center Miami FL EP142020 200 PM PDT Fri Aug 28 2020 ...ISELLE PRODUCING TROPICAL-STORM-FORCE WINDS OVER CLARION ISLAND... SUMMARY OF 200 PM PDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...18.8N 115.2W ABOUT 445 MI...715 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...NNE OR 20 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 200 PM PDT (2100 UTC), the center of Tropical Storm Iselle was located near latitude 18.8 North, longitude 115.2 West. Iselle is moving toward the north-northeast near 7 mph (11 km/h) and this general motion is expected to continue through tonight. A northward turn is expected by Saturday morning followed by a north-northwestward motion on Sunday morning. Afterward, Post-Tropical/Remnant Low Iselle is forecast to turn northwestward in the low-level flow. Maximum sustained winds have decreased to near 50 mph (85 km/h) with higher gusts. Further weakening is forecast and Iselle should become a tropical depression Saturday night, degenerate to a remnant low on Sunday and dissipate early next week. An observing site at Clarion Island, MX recently reported a sustained wind of 40 mph (65 km/hr) and a gust of 48 mph (80 km/hr). Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Iselle and a large area of southwesterly winds to its south are affecting portions of the southwestern coast of Mexico. These swells are expected to spread northward along the coast of west-central Mexico and the southern Baja California peninsula through Sunday, and will likely cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 800 PM PDT. $$ Forecaster Roberts

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Tropical Storm Iselle Forecast Advisory Number 10

2020-08-28 22:31:37| National Hurricane Center (East Pacific)

Issued at 2100 UTC FRI AUG 28 2020 000 WTPZ24 KNHC 282031 TCMEP4 TROPICAL STORM ISELLE FORECAST/ADVISORY NUMBER 10 NWS NATIONAL HURRICANE CENTER MIAMI FL EP142020 2100 UTC FRI AUG 28 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 18.8N 115.2W AT 28/2100Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 20 DEGREES AT 6 KT ESTIMATED MINIMUM CENTRAL PRESSURE 999 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT....... 50NE 60SE 60SW 40NW. 12 FT SEAS.. 60NE 90SE 60SW 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 18.8N 115.2W AT 28/2100Z AT 28/1800Z CENTER WAS LOCATED NEAR 18.5N 115.3W FORECAST VALID 29/0600Z 19.6N 114.9W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 40NE 50SE 40SW 30NW. FORECAST VALID 29/1800Z 21.0N 114.7W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 20SW 20NW. FORECAST VALID 30/0600Z 22.6N 115.0W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 30/1800Z 23.7N 115.7W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 31/0600Z 24.4N 116.3W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 30 KT. FORECAST VALID 31/1800Z 25.1N 117.0W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 25 KT. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM ON DAY 4 AND 150 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 01/1800Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 18.8N 115.2W NEXT ADVISORY AT 29/0300Z $$ FORECASTER ROBERTS

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