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Tropical Storm Elida Forecast Advisory Number 15
2020-08-12 16:32:28| National Hurricane Center (East Pacific)
Issued at 1500 UTC WED AUG 12 2020 000 WTPZ24 KNHC 121432 TCMEP4 TROPICAL STORM ELIDA FORECAST/ADVISORY NUMBER 15 NWS NATIONAL HURRICANE CENTER MIAMI FL EP092020 1500 UTC WED AUG 12 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 23.5N 118.7W AT 12/1500Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 10 KT ESTIMATED MINIMUM CENTRAL PRESSURE 995 MB MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT. 50 KT....... 30NE 20SE 0SW 30NW. 34 KT....... 50NE 40SE 40SW 50NW. 12 FT SEAS..120NE 90SE 90SW 100NW. 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 23.5N 118.7W AT 12/1500Z AT 12/1200Z CENTER WAS LOCATED NEAR 23.2N 118.2W FORECAST VALID 13/0000Z 24.2N 119.7W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 30NE 20SE 0SW 30NW. FORECAST VALID 13/1200Z 25.3N 120.7W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 14/0000Z 26.7N 121.6W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 14/1200Z 28.3N 122.4W...POST-TROP/REMNT LOW MAX WIND 15 KT...GUSTS 20 KT. FORECAST VALID 15/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.5N 118.7W NEXT ADVISORY AT 12/2100Z $$ FORECASTER BERG
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Eastern North Pacific Tropical Weather Outlook
2020-08-12 13:54:59| National Hurricane Center (East Pacific)
000 ABPZ20 KNHC 121154 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 500 AM PDT Wed Aug 12 2020 For the eastern North Pacific...east of 140 degrees west longitude: The National Hurricane Center is issuing advisories on Hurricane Elida, located about 500 miles west of the southern tip of the Baja California peninsula. An elongated area of low pressure located about 1300 miles southwest of the southern tip of the Baja California continues to produce a broad area of cloudiness and disorganized showers and thunderstorms. Environmental conditions are conducive for development, and a tropical depression is likely to form within the next couple of days while the system moves slowly west-northwestward. * Formation chance through 48 hours...high...70 percent. * Formation chance through 5 days...high...90 percent. A large area of disturbed weather associated with a trough of low pressure extends from just west of the Gulf of Tehuantepec southwestward for several hundred miles. Environmental conditions appear conducive for development, and a tropical depression is likely to form during the next few days before the system reaches cooler waters over the weekend. This system is forecast to move west-northwestward at about 15 mph away from the coast of southwestern Mexico. * Formation chance through 48 hours...medium...60 percent. * Formation chance through 5 days...high...90 percent. Another area of low pressure is expected to form in a few days over the far eastern portion of the basin to the south of the coast of Central America. Conditions are expected to be conducive for development, and a tropical depression could form this weekend or early next week while it moves generally west-northwestward just offshore the coast of Mexico. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...medium...60 percent. Another area of disturbed weather is forecast to form near or west of the border between the National Hurricane Center and Central Pacific Hurricane Center areas of responsibility. Some subsequent gradual development of this system is possible later this week while the system moves slowly westward in the central Pacific basin. Future information on this system will be included in Tropical Weather Outlooks issued by the Central Pacific Hurricane Center. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...30 percent. && The Central Pacific Tropical Weather Outlook is issued under WMO header ACPN50 PHFO and under AWIPS header HFOTWOCP, and is available on the web at www.nhc.noaa.gov/?cpac $$ Forecaster Berg
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Atlantic Tropical Weather Outlook
2020-08-12 13:44:29| National Hurricane Center (Atlantic)
000 ABNT20 KNHC 121144 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 AM EDT Wed Aug 12 2020 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Tropical Depression Eleven, located over the central tropical Atlantic Ocean about 1100 miles east of the Lesser Antilles. Tropical cyclone formation is not expected for the next five days. && Public Advisories on Tropical Depression Eleven are issued under WMO header WTNT31 KNHC and under AWIPS header MIATCPAT1. Forecast/Advisories on Tropical Depression Eleven are issued under WMO header WTNT21 KNHC and under AWIPS header MIATCMAT1. $$ Forecaster Beven
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Tropical Depression Eleven Forecast Discussion Number 3
2020-08-12 11:00:28| National Hurricane Center (Atlantic)
Issued at 500 AM AST Wed Aug 12 2020 000 WTNT41 KNHC 120900 TCDAT1 Tropical Depression Eleven Discussion Number 3 NWS National Hurricane Center Miami FL AL112020 500 AM AST Wed Aug 12 2020 After an earlier burst of deep convection near the center and in the western semicircle of the circulation, overall thunderstorm activity has decreased somewhat. This is likely due to the entrainment of mid-/upper-level dry air as noted in GOES-16 high-resolution mid- and upper-level water vapor imagery, in conjunction with some modest southeasterly vertical wind shear. The latest subjective and objective Dvorak satellite classifications from TAFB/SAB and UW-CIMSS ADT of 30 kt and 33 kt, respectively, support maintaining an initial intensity of 30 kt. The depression continues moving a little north of due west, or 280/13 kt. This general motion is expected to continue through tonight due to easterly flow on the south side of a strong subtropical ridge situated to the north of the cyclone. By 24 h, all of the global models are in decent agreement that a slight weakness will develop within the ridge, allowing the cyclone to turn more toward the west-northwest and then continue that motion through the end of the forecast period. The latest NHC model guidance is tightly packed about the previous forecast track, so no significant track changes were made. The aforementioned unfavorable conditions of dry air entrainment and southeasterly shear are expected to give way to more conducive environmental conditions by 24 h when the cyclone will begin to move underneath the center of a synoptic-scale upper-level anticyclone. This will result in the shear decreasing to near zero, along with a pronounced improvement in the upper-level outflow pattern. The much lower shear conditions should also reduce the amount of dry air entrainment, while allowing for some moistening of the surrounding environment to occur. These more favorable conditions are expected to persist through at least the 60-h period, and thus slow but steady strengthening is forecast during that time. By 72 h and beyond, the global models and regional models show the system moving out from underneath the positive influence of the upper-level anticyclone, encountering moderate southerly to southwesterly vertical wind shear, which is expected to induce gradual weakening. It should be noted that during the 48-60 h period when the shear will be the lowest and sea-surface temperatures will be near 28.5C, there is a narrow window of opportunity where the intensity could peak higher than what is currently indicated. The new NHC intensity forecast is very similar to the previous advisory, and is slightly higher than the consensus intensity consensus models IVCN and HCCA due to anticipation of the very favorable low-shear conditions. FORECAST POSITIONS AND MAX WINDS INIT 12/0900Z 12.2N 42.9W 30 KT 35 MPH 12H 12/1800Z 12.6N 44.8W 35 KT 40 MPH 24H 13/0600Z 13.2N 47.3W 40 KT 45 MPH 36H 13/1800Z 14.0N 49.6W 45 KT 50 MPH 48H 14/0600Z 15.1N 52.1W 50 KT 60 MPH 60H 14/1800Z 16.3N 54.6W 50 KT 60 MPH 72H 15/0600Z 17.6N 57.0W 45 KT 50 MPH 96H 16/0600Z 20.1N 61.8W 40 KT 45 MPH 120H 17/0600Z 22.9N 65.6W 35 KT 40 MPH $$ Forecaster Stewart
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Tropical Depression Eleven Graphics
2020-08-12 10:50:55| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Wed, 12 Aug 2020 08:50:55 GMT Wind Speed Probabilities last updated Wed, 12 Aug 2020 09:24:29 GMT
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