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Tropical Storm Pamela Public Advisory Number 6

2021-10-11 16:59:57| National Hurricane Center (East Pacific)

Issued at 900 AM MDT Mon Oct 11 2021 000 WTPZ31 KNHC 111459 TCPEP1 BULLETIN Tropical Storm Pamela Advisory Number 6 NWS National Hurricane Center Miami FL EP162021 900 AM MDT Mon Oct 11 2021 ...PAMELA RAPIDLY STRENGTHENING... ...HURRICANE AND TROPICAL STORM WATCHES ISSUED FOR PORTIONS OF SOUTHWESTERN MEXICO AND SOUTHERN BAJA CALIFORNIA SUR... SUMMARY OF 900 AM MDT...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...16.8N 108.1W ABOUT 455 MI...735 KM SSW OF MAZATLAN MEXICO ABOUT 435 MI...705 KM SSE OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...NW OR 320 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...995 MB...29.39 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has issued a Hurricane Watch for portions of the southwestern coast of Mexico from Bahia Tempehuaya southward to Escuinapa. A Tropical Storm Watch has been issued from Bahia Tempehuaya northward to Altata, and also from Escuinapa southward to San Blas, including all the Isla Marias archipelago. A Tropical Storm Watch has also been issued for extreme southern Baja California Sur from Los Barilles southward to Cabo San Lucas. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * Bahia Tempehuaya to Escuinapa A Tropical Storm Watch is in effect for... * North of Bahia Tempehuaya to Altata * South of Escuinapa to San Blas * Isla Marias * Los Barilles to Cabo San Lucas A Hurricane Warning and a Tropical Storm Warning will likely be required tonight for portions of the current Watch areas by this afternoon or evening. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 900 AM MDT (1500 UTC), the center of Tropical Storm Pamela was located near latitude 16.8 North, longitude 108.1 West. Pamela is moving toward the northwest near 8 mph (13 km/h) and this general motion is expected to continue today. A turn toward the north is forecast to occur tonight into Tuesday, followed by a faster northeastward motion by Tuesday night. On the forecast track, Pamela will pass south of the southern tip of the Baja California peninsula Tuesday night or early Wednesday and make landfall on west-central mainland Mexico Wednesday morning. Maximum sustained winds have increased to near 65 mph (100 km/h) with higher gusts. Steady to rapid strengthening is forecast, and Pamela is expected to become a hurricane by tonight and a major hurricane before it reaches the coast of Mexico. Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 995 mb (29.39 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Hurricane conditions are possible within the Hurricane Watch area by late Tuesday, with tropical storm conditions possible by Tuesday afternoon. Tropical storm conditions are possible within the Tropical Storm Watch areas by Tuesday afternoon. RAINFALL: Pamela is expected to produce the following rainfall amounts through Wednesday: Across the Mexican States of Sinaloa and western Durango... 4 to 8 inches with isolated maximum totals of 12 inches. This rainfall may trigger significant and life-threatening flash flooding and mudslides. Across southern portions of Baja California Sur... 2 to 4 inches with isolated maximum totals of 6 inches. SURF: Pamela is expected to generate swells that will affect portions of the southern Baja California peninsula and southwestern and west-central mainland Mexico by late Tuesday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 1200 PM MDT. Next complete advisory at 300 PM MDT. $$ Forecaster Stewart

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Tropical Storm Pamela Forecast Advisory Number 6

2021-10-11 16:57:55| National Hurricane Center (East Pacific)

Issued at 1500 UTC MON OCT 11 2021 000 WTPZ21 KNHC 111457 TCMEP1 TROPICAL STORM PAMELA FORECAST/ADVISORY NUMBER 6 NWS NATIONAL HURRICANE CENTER MIAMI FL EP162021 1500 UTC MON OCT 11 2021 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF MEXICO HAS ISSUED A HURRICANE WATCH FOR PORTIONS OF THE SOUTHWESTERN COAST OF MEXICO FROM BAHIA TEMPEHUAYA SOUTHWARD TO ESCUINAPA. A TROPICAL STORM WATCH HAS BEEN ISSUED FROM BAHIA TEMPEHUAYA NORTHWARD TO ALTATA...AND ALSO FROM ESCUINAPA SOUTHWARD TO SAN BLAS...INCLUDING ALL THE ISLA MARIAS ARCHIPELAGO. A TROPICAL STORM WATCH HAS ALSO BEEN ISSUED FOR EXTREME SOUTHERN BAJA CALIFORNIA SUR FROM LOS BARILLES SOUTHWARD TO CABO SAN LUCAS. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WATCH IS IN EFFECT FOR... * BAHIA TEMPEHUAYA TO ESCUINAPA A TROPICAL STORM WATCH IS IN EFFECT FOR... * NORTH OF BAHIA TEMPEHUAYA TO ALTATA * SOUTH OF ESCUINAPA TO SAN BLAS * ISLA MARIAS * LOS BARILLES TO CABO SAN LUCAS A HURRICANE WARNING AND A TROPICAL STORM WARNING WILL LIKELY BE REQUIRED TONIGHT FOR PORTIONS OF THE CURRENT WATCH AREAS BY THIS AFTERNOON OR EVENING. TROPICAL STORM CENTER LOCATED NEAR 16.8N 108.1W AT 11/1500Z POSITION ACCURATE WITHIN 25 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 320 DEGREES AT 7 KT ESTIMATED MINIMUM CENTRAL PRESSURE 995 MB MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT. 50 KT....... 20NE 20SE 0SW 0NW. 34 KT....... 60NE 60SE 30SW 40NW. 12 FT SEAS.. 75NE 60SE 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 16.8N 108.1W AT 11/1500Z AT 11/1200Z CENTER WAS LOCATED NEAR 16.6N 107.9W FORECAST VALID 12/0000Z 17.8N 108.9W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 15NE 15SE 0SW 0NW. 50 KT... 30NE 30SE 0SW 30NW. 34 KT... 80NE 80SE 40SW 60NW. FORECAST VALID 12/1200Z 19.3N 109.3W MAX WIND 85 KT...GUSTS 105 KT. 64 KT... 20NE 20SE 0SW 15NW. 50 KT... 40NE 40SE 20SW 30NW. 34 KT...100NE 100SE 60SW 70NW. FORECAST VALID 13/0000Z 21.1N 108.8W MAX WIND 100 KT...GUSTS 120 KT. 64 KT... 25NE 25SE 15SW 20NW. 50 KT... 50NE 60SE 30SW 40NW. 34 KT...120NE 120SE 80SW 80NW. FORECAST VALID 13/1200Z 23.3N 107.1W MAX WIND 105 KT...GUSTS 130 KT. 64 KT... 30NE 30SE 20SW 20NW. 50 KT... 60NE 60SE 40SW 40NW. 34 KT...120NE 120SE 90SW 90NW. FORECAST VALID 14/0000Z 25.7N 104.9W...INLAND MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 60NE 60SE 0SW 0NW. FORECAST VALID 14/1200Z 29.1N 100.8W...POST-TROP/INLAND MAX WIND 25 KT...GUSTS 35 KT. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM ON DAY 4 AND 125 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 15/1200Z...DISSIPATED INLAND REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.8N 108.1W INTERMEDIATE PUBLIC ADVISORY...WTNT31 KNHC/MIATCPEP1...AT 11/1800Z NEXT ADVISORY AT 11/2100Z $$ FORECASTER STEWART

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Atlantic Tropical Weather Outlook

2021-10-11 13:50:54| National Hurricane Center (Atlantic)

000 ABNT20 KNHC 111150 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 AM EDT Mon Oct 11 2021 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: A tropical wave located about 350 miles east-southeast of the Windward Islands is producing an area of showers and a few thunderstorms. Some slow development is possible during the next day or two while the system moves west-northwestward at about 15 mph toward the Lesser Antilles. Strong upper-level winds are expected to limit further development on Tuesday. Regardless of development, the system could produce locally heavy rainfall and gusty winds across portions of the central and northern Lesser Antilles on Tuesday, and across the Virgin Islands and Leeward Islands on Wednesday. * Formation chance through 48 hours...low...20 percent. * Formation chance through 5 days...low...20 percent. Shower and thunderstorm activity associated with another tropical wave located over the eastern Caribbean Sea has decreased since yesterday. Environmental conditions are not expected to support development of this system for the next day or two. However, some gradual development is possible beginning on Wednesday when the system nears the southeastern Bahamas. Regardless of development, locally heavy rainfall is possible over portions of the Lesser Antilles, Puerto Rico, and Hispaniola during the next couple of days. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...20 percent. $$ Forecaster D. Zelinsky

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Eastern North Pacific Tropical Weather Outlook

2021-10-11 13:05:21| National Hurricane Center (East Pacific)

000 ABPZ20 KNHC 111105 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 500 AM PDT Mon Oct 11 2021 For the eastern North Pacific...east of 140 degrees west longitude: The National Hurricane Center is issuing advisories on Tropical Storm Pamela, located several hundred miles south of Mazatlan, Mexico. Tropical cyclone formation is not expected during the next 5 days. && Public Advisories on Pamela are issued under WMO header WTPZ31 KNHC and under AWIPS header MIATCPEP1. Forecast/Advisories on Pamela are issued under WMO header WTPZ21 KNHC and under AWIPS header MIATCMEP1. $$ Forecaster Stewart

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