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Tropical Storm Odalys Forecast Advisory Number 7

2020-11-05 09:51:15| National Hurricane Center (East Pacific)

Issued at 0900 UTC THU NOV 05 2020 000 WTPZ25 KNHC 050851 TCMEP5 TROPICAL STORM ODALYS FORECAST/ADVISORY NUMBER 7 NWS NATIONAL HURRICANE CENTER MIAMI FL EP202020 0900 UTC THU NOV 05 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 18.1N 122.3W AT 05/0900Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 8 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT.......130NE 0SE 0SW 100NW. 12 FT SEAS..150NE 120SE 45SW 120NW. 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 18.1N 122.3W AT 05/0900Z AT 05/0600Z CENTER WAS LOCATED NEAR 18.0N 121.9W FORECAST VALID 05/1800Z 18.5N 123.5W MAX WIND 40 KT...GUSTS 50 KT. 34 KT...110NE 0SE 0SW 90NW. FORECAST VALID 06/0600Z 18.5N 124.9W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 0SE 0SW 40NW. FORECAST VALID 06/1800Z 17.9N 126.0W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 07/0600Z 17.2N 127.0W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 07/1800Z 16.3N 127.8W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 08/0600Z 15.6N 128.9W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 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 09/0600Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 18.1N 122.3W NEXT ADVISORY AT 05/1500Z $$ FORECASTER LATTO

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Tropical Depression Eta Forecast Advisory Number 19

2020-11-05 09:50:44| National Hurricane Center (Atlantic)

Issued at 0900 UTC THU NOV 05 2020 000 WTNT24 KNHC 050850 TCMAT4 TROPICAL DEPRESSION ETA FORECAST/ADVISORY NUMBER 19 NWS NATIONAL HURRICANE CENTER MIAMI FL AL292020 0900 UTC THU NOV 05 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. THE GOVERNMENTS OF NICARAGUA AND HONDURAS CONTINUE TO ISSUE WARNINGS ON HEAVY RAIN AND FLOODING IN THOSE COUNTRIES...AND INTERESTS IN NICARAGUA AND HONDURAS SHOULD CONTINUE TO MONITOR THE PROGRESS OF THIS SYSTEM. INTERESTS IN BELIZE...WESTERN CUBA...AND THE CAYMAN ISLANDS SHOULD ALSO MONITOR THE PROGRESS OF THIS SYSTEM. TROPICAL DEPRESSION CENTER LOCATED NEAR 14.5N 87.0W AT 05/0900Z POSITION ACCURATE WITHIN 70 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT 7 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB MAX SUSTAINED WINDS 25 KT WITH GUSTS TO 35 KT. 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 14.5N 87.0W AT 05/0900Z AT 05/0600Z CENTER WAS LOCATED NEAR 14.2N 86.7W FORECAST VALID 05/1800Z 15.0N 87.8W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 06/0600Z 16.2N 87.8W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 06/1800Z 17.4N 86.3W...TROPICAL CYCLONE MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 0NE 60SE 0SW 0NW. FORECAST VALID 07/0600Z 18.5N 84.7W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 0NE 60SE 0SW 0NW. FORECAST VALID 07/1800Z 19.6N 82.9W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 50NE 70SE 40SW 0NW. FORECAST VALID 08/0600Z 21.0N 81.0W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 30NE 50SE 0SW 0NW. 34 KT... 80NE 100SE 60SW 30NW. 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 09/0600Z 23.5N 79.5W MAX WIND 50 KT...GUSTS 60 KT. OUTLOOK VALID 10/0600Z 24.5N 81.5W MAX WIND 55 KT...GUSTS 65 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.5N 87.0W NEXT ADVISORY AT 05/1500Z $$ FORECASTER PASCH

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Tropical Depression Eta Forecast Discussion Number 18

2020-11-05 03:38:42| National Hurricane Center (Atlantic)

Issued at 900 PM CST Wed Nov 04 2020 000 WTNT44 KNHC 050238 TCDAT4 Tropical Depression Eta Discussion Number 18 NWS National Hurricane Center Miami FL AL292020 900 PM CST Wed Nov 04 2020 The rugged terrain of Central America is taking a toll on Eta. The low-level circulation is losing definition, and deep convection is well removed from the center. Eta was downgraded to a 30-kt tropical depression a few hours ago, and the initial intensity is held at that value for this advisory. The strongest winds are likely occurring offshore over the Gulf of Honduras, as noted in earlier ASCAT scatterometer surface wind data. Eta, or its remnant low, is forecast to move west-northwestward to northwestward during the next 12 to 24 hours, taking the cyclone across portions of Honduras during that time. In 24 to 36 hours, a turn to the north and then northeast is forecast as Eta feels some influence from a mid- to upper level trough moving over the northwestern Gulf of Mexico. As this trough slides southeastward across the Gulf, it should steer Eta northeastward at a faster forward speed toward Cuba, likely approaching that country late Saturday or Sunday. After that time, the models show Eta rotating around the north side of the trough (or cut-off low) in the vicinity of south Florida and the Florida Keys late this weekend and early next week. There is still a lot of spread in the model tracks at the 96- and 120-hour time periods, which is not surprising given the expected complex steering pattern. The NHC track forecast is adjusted a little to the east of the previous one to come into better agreement with the latest models, but confidence in the details of the extended track forecast is low. Continued weakening is expected while Eta remains inland over the rugged terrain of Central America, and the cyclone will likely degenerate into a remnant low or trough of low pressure on Thursday. Whatever is left of Eta, and the broad gyre that it is embedded within, will move offshore of Belize over the northwestern Caribbean Sea by Thursday night or Friday. The rate of intensification over the northwestern Caribbean Sea will likely be gradual because of the mixed environmental conditions. On one hand, Eta will be moving over warm water and in a region of upper-level diffluence, which should support convective growth and strengthening. Conversely, there will also be an increase in wind shear and the cyclone is likely to have a broad structure, which should prevent rapid intensification. The net result will likely be slow but steady strengthening, and Eta is forecast to be a strong tropical storm when it is near south Florida. The models are in fair agreement on Eta's future intensity, and this forecast is just a little higher than the previous one. Key Messages: 1. Through Monday morning, heavy rainfall from Eta will lead to catastrophic, life-threatening flash flooding and river flooding across portions of Central America, along with landslides in areas of higher terrain. Flash and river flooding is also possible across Jamaica, southeast Mexico, the Cayman Islands and western Cuba. 2. Eta is forecast to regain tropical storm strength over the northwestern Caribbean Sea late this week. Although the details of the future track and intensity of Eta are uncertain, there is an increasing risk of impacts from wind and rainfall in portions of Cuba, southern Florida and the Florida Keys this weekend and early next week. FORECAST POSITIONS AND MAX WINDS INIT 05/0300Z 14.2N 86.3W 30 KT 35 MPH...INLAND 12H 05/1200Z 15.0N 87.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 06/0000Z 16.1N 87.8W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 06/1200Z 17.2N 86.8W 30 KT 35 MPH...POST-TROP/REMNT LOW 48H 07/0000Z 18.2N 85.5W 35 KT 40 MPH...TROPICAL CYCLONE 60H 07/1200Z 19.3N 83.7W 40 KT 45 MPH 72H 08/0000Z 20.4N 82.0W 45 KT 50 MPH 96H 09/0000Z 23.3N 79.9W 50 KT 60 MPH 120H 10/0000Z 24.7N 81.4W 55 KT 65 MPH $$ Forecaster Cangialosi

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Tropical Depression Eta Forecast Advisory Number 18

2020-11-05 03:36:12| National Hurricane Center (Atlantic)

Issued at 0300 UTC THU NOV 05 2020 000 WTNT24 KNHC 050236 TCMAT4 TROPICAL DEPRESSION ETA FORECAST/ADVISORY NUMBER 18 NWS NATIONAL HURRICANE CENTER MIAMI FL AL292020 0300 UTC THU NOV 05 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. THE GOVERNMENTS OF NICARAGUA AND HONDURAS CONTINUE TO ISSUE WARNINGS ON HEAVY RAIN AND FLOODING IN THOSE COUNTRIES...AND INTERESTS IN NICARAGUA AND HONDURAS SHOULD CONTINUE TO MONITOR THE PROGRESS OF THIS SYSTEM. INTERESTS IN BELIZE...WESTERN CUBA...AND THE CAYMAN ISLANDS SHOULD ALSO MONITOR THE PROGRESS OF THIS SYSTEM. TROPICAL DEPRESSION CENTER LOCATED NEAR 14.2N 86.3W AT 05/0300Z POSITION ACCURATE WITHIN 50 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 6 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. 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 14.2N 86.3W AT 05/0300Z AT 05/0000Z CENTER WAS LOCATED NEAR 14.0N 86.0W FORECAST VALID 05/1200Z 15.0N 87.3W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 06/0000Z 16.1N 87.8W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 06/1200Z 17.2N 86.8W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 07/0000Z 18.2N 85.5W...TROPICAL CYCLONE MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 0NE 60SE 0SW 0NW. FORECAST VALID 07/1200Z 19.3N 83.7W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 50NE 70SE 40SW 0NW. FORECAST VALID 08/0000Z 20.4N 82.0W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 60NE 80SE 50SW 30NW. 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 09/0000Z 23.3N 79.9W MAX WIND 50 KT...GUSTS 60 KT. OUTLOOK VALID 10/0000Z 24.7N 81.4W MAX WIND 55 KT...GUSTS 65 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.2N 86.3W NEXT ADVISORY AT 05/0900Z $$ FORECASTER CANGIALOSI

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Tropical Storm Odalys Forecast Discussion Number 6

2020-11-05 03:36:12| National Hurricane Center (East Pacific)

Issued at 700 PM PST Wed Nov 04 2020 000 WTPZ45 KNHC 050236 TCDEP5 Tropical Storm Odalys Discussion Number 6 NWS National Hurricane Center Miami FL EP202020 700 PM PST Wed Nov 04 2020 Odalys has devolved into a sheared tropical cyclone, with the bulk of the deep convection displaced to the northeast of the now fully exposed low-level circulation center. The initial intensity has been held at 40 kt based on a blend of Dvorak satellite current intensity (CI) estimates of T3.0/45 kt from TAFB and T2.5/35 kt from SAB. A 04/2142 UTC UW-CIMSS SATCON estimate of 40 kt also supports this intensity. Odalys is now moving west-northwestward, or 295/09 kt. The cyclone is expected to gradually turn more westward during the next 24 hours or so, followed by a turn toward the west as Odalys degenerates into a shallow low pressure system. By 48 hours and beyond, the remnant low is forecast to move west-southwestward to southwestward under the influence of low-level northeasterly trade wind flow. The NHC track forecast is similar to the previous advisory track, and lies close to the simple-consensus track model, TVCE. The current southwesterly deep-layer vertical wind shear of near 30 kt is forecast to steadily increase to 40 kt during the next 72 hours. Sea-surface temperatures decreasing to less than 26 deg C will also help hasten the weakening process during that time, resulting in Odalys becoming a remnant low in about 36 hours, followed by dissipation in 96 hours, if not sooner. The NHC intensity forecast is similar to the previous advisory, and closely follows the simple-consensus intensity models IVCN and ICON. FORECAST POSITIONS AND MAX WINDS INIT 05/0300Z 18.1N 121.7W 40 KT 45 MPH 12H 05/1200Z 18.7N 123.0W 35 KT 40 MPH 24H 06/0000Z 18.9N 124.6W 30 KT 35 MPH 36H 06/1200Z 18.6N 125.9W 25 KT 30 MPH...POST-TROP/REMNT LOW 48H 07/0000Z 17.9N 127.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 60H 07/1200Z 17.0N 128.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 72H 08/0000Z 16.2N 129.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 96H 09/0000Z...DISSIPATED $$ Forecaster Stewart

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