Home forecast
 

Keywords :   


Tag: forecast

Tropical Storm Josephine Forecast Discussion Number 15

2020-08-15 10:39:49| National Hurricane Center (Atlantic)

Issued at 500 AM AST Sat Aug 15 2020 000 WTNT41 KNHC 150839 TCDAT1 Tropical Storm Josephine Discussion Number 15 NWS National Hurricane Center Miami FL AL112020 500 AM AST Sat Aug 15 2020 Josephine continues to produce disorganized bursts of deep convection to the north and northeast of the estimated center, with little evidence of any banding features. In spite of the shear, the storm is still producing high-level outflow into the strong upper-level winds. The current intensity estimate of 40 kt is based on continuity from the previous scatterometer-based observations, and an ADT estimate from UW-CIMSS. An Air Force Hurricane Hunter aircraft is scheduled to investigate the storm later this morning, and this should provide a good intensity estimate. Since vertical shear associated with a large upper-level trough over the western Atlantic is forecast to become quite strong over the next few days, a weakening trend is likely to commence in a day or so. The official forecast is similar to the previous NHC prediction. It is also possible that the system will degenerate into an open wave within the next couple of days, as shown by the global models. It is difficult to locate the center at this time, but it is believed to be situated near the southwest edge of the main area of deep convection. This leads to a somewhat uncertain initial motion estimate of 300/13 kt. Josephine or its remnants are likely to continue to move west-northwestward to the south and southwest of a subtropical high pressure area, and then to turn northwest, north, and north-northeast along the periphery of the high. The official track forecast remains close to the NOAA corrected model consensus prediction. KEY MESSAGES: 1. Josephine should pass far enough to the northeast of the Leeward Islands over the weekend to prevent major impacts. However, interests there should continue to monitor its progress until the storm has passed north of that area. 2. Locally heavy rainfall is possible in the northern Leeward Islands, the Virgin Islands, and Puerto Rico as Josephine passes by to the northeast. Isolated minor flooding is possible in Puerto Rico through Monday. FORECAST POSITIONS AND MAX WINDS INIT 15/0900Z 18.9N 58.4W 40 KT 45 MPH 12H 15/1800Z 19.6N 60.2W 40 KT 45 MPH 24H 16/0600Z 20.7N 62.5W 40 KT 45 MPH 36H 16/1800Z 22.0N 64.7W 35 KT 40 MPH 48H 17/0600Z 23.4N 66.7W 30 KT 35 MPH 60H 17/1800Z 24.9N 68.0W 30 KT 35 MPH 72H 18/0600Z 26.5N 68.5W 25 KT 30 MPH 96H 19/0600Z 29.0N 68.0W 25 KT 30 MPH...POST-TROP/REMNT LOW 120H 20/0600Z 33.0N 64.5W 20 KT 25 MPH...POST-TROP/REMNT LOW $$ Forecaster Pasch

Tags: number discussion storm tropical

 

Tropical Storm Josephine Forecast Advisory Number 15

2020-08-15 10:38:41| National Hurricane Center (Atlantic)

Issued at 0900 UTC SAT AUG 15 2020 000 WTNT21 KNHC 150838 TCMAT1 TROPICAL STORM JOSEPHINE FORECAST/ADVISORY NUMBER 15 NWS NATIONAL HURRICANE CENTER MIAMI FL AL112020 0900 UTC SAT AUG 15 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. INTERESTS IN THE LEEWARD ISLANDS SHOULD MONITOR THE PROGRESS OF THIS SYSTEM. TROPICAL STORM CENTER LOCATED NEAR 18.9N 58.4W AT 15/0900Z POSITION ACCURATE WITHIN 40 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT 13 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1005 MB MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT. 34 KT....... 70NE 0SE 0SW 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 18.9N 58.4W AT 15/0900Z AT 15/0600Z CENTER WAS LOCATED NEAR 18.6N 57.9W FORECAST VALID 15/1800Z 19.6N 60.2W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 70NE 0SE 0SW 70NW. FORECAST VALID 16/0600Z 20.7N 62.5W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 70NE 0SE 0SW 70NW. FORECAST VALID 16/1800Z 22.0N 64.7W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 70NE 0SE 0SW 70NW. FORECAST VALID 17/0600Z 23.4N 66.7W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 17/1800Z 24.9N 68.0W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 18/0600Z 26.5N 68.5W MAX WIND 25 KT...GUSTS 35 KT. 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 19/0600Z 29.0N 68.0W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. OUTLOOK VALID 20/0600Z 33.0N 64.5W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 18.9N 58.4W NEXT ADVISORY AT 15/1500Z $$ FORECASTER PASCH

Tags: number storm advisory tropical

 
 

Tropical Depression Ten-E Forecast Discussion Number 9

2020-08-15 10:34:10| National Hurricane Center (East Pacific)

Issued at 200 AM PDT Sat Aug 15 2020 000 WTPZ45 KNHC 150834 TCDEP5 Tropical Depression Ten-E Discussion Number 9 NWS National Hurricane Center Miami FL EP102020 200 AM PDT Sat Aug 15 2020 Intermittent bursts of convection continue to develop near the depression's center, before northeasterly shear re-exposes the center of circulation. A recent ASCAT overpass shows that the initial intensity remains 30 kt for this advisory. None of the global or regional models make the cyclone a tropical storm, with the only guidance suggesting strengthening being the SHIPS at the end of the forecast period, when the vertical wind shear may finally abate. However,the atmospheric environment begins to dry out by that time. The official forecast no longer shows intensification, and keeps the cyclone a depression for the duration of the 5-day forecast. The depression continues to meander westward, now at 2 kt. A low- to mid-level ridge to the north of the system should continue to move the cyclone slowly westward this morning. The ridge is forecast to weaken, which should allow the depression to gain a little latitude later this weekend through early next week. Regardless of this motion, the system will not move very far over the next several days. The official forecast is very near the previous one, and is close to the consensus track guidance. FORECAST POSITIONS AND MAX WINDS INIT 15/0900Z 13.4N 133.4W 30 KT 35 MPH 12H 15/1800Z 13.3N 133.6W 30 KT 35 MPH 24H 16/0600Z 13.2N 133.9W 30 KT 35 MPH 36H 16/1800Z 13.5N 134.2W 30 KT 35 MPH 48H 17/0600Z 13.9N 134.6W 30 KT 35 MPH 60H 17/1800Z 14.2N 135.1W 30 KT 35 MPH 72H 18/0600Z 14.5N 135.7W 30 KT 35 MPH 96H 19/0600Z 14.5N 136.5W 30 KT 35 MPH 120H 20/0600Z 14.4N 136.9W 30 KT 35 MPH $$ Forecaster Latto

Tags: number discussion tropical depression

 

Tropical Depression Ten-E Forecast Advisory Number 9

2020-08-15 10:33:40| National Hurricane Center (East Pacific)

Issued at 0900 UTC SAT AUG 15 2020 000 WTPZ25 KNHC 150833 TCMEP5 TROPICAL DEPRESSION TEN-E FORECAST/ADVISORY NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL EP102020 0900 UTC SAT AUG 15 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL DEPRESSION CENTER LOCATED NEAR 13.4N 133.4W AT 15/0900Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 2 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1004 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. 12 FT SEAS.. 0NE 45SE 45SW 45NW. 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 13.4N 133.4W AT 15/0900Z AT 15/0600Z CENTER WAS LOCATED NEAR 13.4N 133.3W FORECAST VALID 15/1800Z 13.3N 133.6W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 16/0600Z 13.2N 133.9W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 16/1800Z 13.5N 134.2W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 17/0600Z 13.9N 134.6W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 17/1800Z 14.2N 135.1W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 18/0600Z 14.5N 135.7W MAX WIND 30 KT...GUSTS 40 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 19/0600Z 14.5N 136.5W MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 20/0600Z 14.4N 136.9W MAX WIND 30 KT...GUSTS 40 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.4N 133.4W NEXT ADVISORY AT 15/1500Z $$ FORECASTER LATTO

Tags: number advisory tropical depression

 

Tropical Storm Kyle Forecast Discussion Number 3

2020-08-15 10:32:39| National Hurricane Center (Atlantic)

Issued at 500 AM AST Sat Aug 15 2020 000 WTNT42 KNHC 150832 TCDAT2 Tropical Storm Kyle Discussion Number 3 NWS National Hurricane Center Miami FL AL122020 500 AM AST Sat Aug 15 2020 The low-level center of Kyle continues to be exposed to the west of the deep convection, as strong westerly shear prevails. Although the satellite appearance is not that impressive, the circulation is well intact as indicated by a recent ASCAT overpass that reveals that the initial intensity remains 40 kt. Kyle is currently moving east-northeast at 18 kt, and away from the U.S. coast. This general motion is expected to continue for the next couple of days, with a turn to the east and an increase in forward speed thereafter as the system remains embedded in the mid-latitude westerlies. The official forecast track is little changed from the previous one, and is near the tightly clustered track guidance. Only slight strengthening is expected over the next 24 h as the cyclone crosses the warm Gulf Stream waters and interacts with an upper-level trough, while battling increasing westerly shear. The forecast track takes Kyle over much cooler waters starting in about 24 h, and by that time, the system is expected to begin interacting with a frontal boundary to its north. This should initiate an extratropical transition that is expected to be complete by 36 h. It should be noted that both the FSU GFS-based phase space forecast and SHIPS guidance suggest that this transition could be completed sooner than indicated. After transition, the extratropical system should slowly decay until it is absorbed by a larger extratropical low in a little more than 3 days. FORECAST POSITIONS AND MAX WINDS INIT 15/0900Z 38.7N 68.0W 40 KT 45 MPH 12H 15/1800Z 39.7N 64.7W 45 KT 50 MPH 24H 16/0600Z 41.0N 60.4W 50 KT 60 MPH 36H 16/1800Z 42.1N 56.5W 45 KT 50 MPH...POST-TROP/EXTRATROP 48H 17/0600Z 42.8N 52.4W 40 KT 45 MPH...POST-TROP/EXTRATROP 60H 17/1800Z 43.2N 46.5W 35 KT 40 MPH...POST-TROP/EXTRATROP 72H 18/0600Z 42.9N 40.3W 35 KT 40 MPH...POST-TROP/EXTRATROP 96H 19/0600Z...DISSIPATED $$ Forecaster Latto

Tags: number discussion storm tropical

 

Sites : [547] [548] [549] [550] [551] [552] [553] [554] [555] [556] [557] [558] [559] [560] [561] [562] [563] [564] [565] [566] next »