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Tropical Depression Norbert Forecast Advisory Number 12

2020-10-08 16:41:48| National Hurricane Center (East Pacific)

Issued at 1500 UTC THU OCT 08 2020 000 WTPZ24 KNHC 081441 TCMEP4 TROPICAL DEPRESSION NORBERT FORECAST/ADVISORY NUMBER 12 NWS NATIONAL HURRICANE CENTER MIAMI FL EP192020 1500 UTC THU OCT 08 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL DEPRESSION CENTER LOCATED NEAR 13.2N 106.2W AT 08/1500Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT STATIONARY ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB MAX SUSTAINED WINDS 25 KT WITH GUSTS TO 35 KT. 12 FT SEAS.. 0NE 30SE 0SW 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 13.2N 106.2W AT 08/1500Z AT 08/1200Z CENTER WAS LOCATED NEAR 13.2N 106.2W FORECAST VALID 09/0000Z 13.0N 106.3W MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 09/1200Z 13.0N 106.7W MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 10/0000Z 13.4N 107.2W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 10/1200Z 14.1N 107.8W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 11/0000Z 14.9N 108.1W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 11/1200Z 15.5N 108.4W MAX WIND 25 KT...GUSTS 35 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 12/1200Z 15.8N 109.2W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. OUTLOOK VALID 13/1200Z 15.9N 110.3W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.2N 106.2W NEXT ADVISORY AT 08/2100Z $$ FORECASTER LATTO

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SHIC-funded study develops way to forecast PEDV outbreaks

2020-10-08 15:10:00| National Hog Farmer

Combined strategies of herd closure, feedback and reinforcement of on-farm biosecurity reduced the incidence of outbreaks in sow farms by 14%.

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Tropical Depression Norbert Forecast Discussion Number 11

2020-10-08 10:44:08| National Hurricane Center (East Pacific)

Issued at 300 AM MDT Thu Oct 08 2020 000 WTPZ44 KNHC 080843 TCDEP4 Tropical Depression Norbert Discussion Number 11 NWS National Hurricane Center Miami FL EP192020 300 AM MDT Thu Oct 08 2020 Norbert was very close to becoming a remnant low overnight. A recent burst of deep convection to the southeast of the partially exposed low-level center was sufficient to keep Norbert as a tropical depression for this advisory. Water vapor imagery indicates the depression is still battling dry mid-level air on the northern periphery of the circulation. The initial intensity has been lowered to 25 kt based on a 04 UTC ASCAT-B overpass that showed max winds of 25 kt in the southwest quadrant of Norbert. Norbert is presently drifting east-southeastward under weak steering currents, and the cyclone may continue meandering erratically for the next 6-12 h. Then, Norbert is forecast to move slowly west-southwestward or westward through 48 h. Thereafter, a mid-level ridge is expected to build to the north and northeast of Norbert, which should steer the system northwestward at a slightly faster speed. The NHC forecast track is shifted slightly to the right of the previous one based on the guidance consensus aids including TVCE and HCCA. Although drier mid-level air continues to impinge on the northern side of Norbert's circulation, the depression remains in an otherwise favorable environment of high oceanic heat content and light vertical wind shear. If Norbert can survive the slight increase in deep-layer shear depicted by the SHIPS guidance during the next 24 h, improving environmental conditions thereafter could allow Norbert to at least remain a depression for several days. Alternatively, moderate shear and additional dry air intrusions could cause Norbert to degenerate into a remnant low at almost any time. The NHC intensity forecast assumes the first scenario and keeps Norbert as a 25-30 kt depression for the next several days. By 96-120 h, GFS simulated satellite imagery suggests the cyclone will be devoid of convection as it moves into a drier mid-level environment. Thus, the official forecast depicts a transition to remnant low status by day 4. FORECAST POSITIONS AND MAX WINDS INIT 08/0900Z 13.2N 106.3W 25 KT 30 MPH 12H 08/1800Z 13.0N 106.2W 25 KT 30 MPH 24H 09/0600Z 13.0N 106.5W 25 KT 30 MPH 36H 09/1800Z 13.2N 107.0W 30 KT 35 MPH 48H 10/0600Z 13.5N 107.6W 30 KT 35 MPH 60H 10/1800Z 14.4N 108.2W 30 KT 35 MPH 72H 11/0600Z 15.3N 108.6W 30 KT 35 MPH 96H 12/0600Z 16.0N 109.0W 30 KT 35 MPH...POST-TROP/REMNT LOW 120H 13/0600Z 16.5N 110.5W 25 KT 30 MPH...POST-TROP/REMNT LOW $$ Forecaster Reinhart/Zelinsky

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Tropical Depression Norbert Forecast Advisory Number 11

2020-10-08 10:41:08| National Hurricane Center (East Pacific)

Issued at 0900 UTC THU OCT 08 2020 000 WTPZ24 KNHC 080841 TCMEP4 TROPICAL DEPRESSION NORBERT FORECAST/ADVISORY NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL EP192020 0900 UTC THU OCT 08 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL DEPRESSION CENTER LOCATED NEAR 13.2N 106.3W AT 08/0900Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE EAST-SOUTHEAST OR 110 DEGREES AT 3 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB MAX SUSTAINED WINDS 25 KT WITH GUSTS TO 35 KT. 12 FT SEAS.. 0NE 30SE 0SW 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 13.2N 106.3W AT 08/0900Z AT 08/0600Z CENTER WAS LOCATED NEAR 13.2N 106.4W FORECAST VALID 08/1800Z 13.0N 106.2W MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 09/0600Z 13.0N 106.5W MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 09/1800Z 13.2N 107.0W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 10/0600Z 13.5N 107.6W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 10/1800Z 14.4N 108.2W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 11/0600Z 15.3N 108.6W 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 12/0600Z 16.0N 109.0W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 13/0600Z 16.5N 110.5W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.2N 106.3W NEXT ADVISORY AT 08/1500Z $$ FORECASTER REINHART/ZELINSKY

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Hurricane Delta Forecast Discussion Number 15

2020-10-08 10:33:07| National Hurricane Center (Atlantic)

Issued at 400 AM CDT Thu Oct 08 2020 000 WTNT41 KNHC 080832 TCDAT1 Hurricane Delta Discussion Number 15 NWS National Hurricane Center Miami FL AL262020 400 AM CDT Thu Oct 08 2020 Satellite images indicate that Delta remains a well organized hurricane with a central dense overcast feature and curved bands beyond that. There is still no indication of an eye, however, in geostationary satellite images. The Air Force Hurricane Hunters were in Delta a few hours ago and toward the end of that mission, they reported maximum flight-level winds of 102 kt and SFMR winds of 77 kt. Based on a blend of this data, the initial intensity was increased to 85 kt at 0600 UTC. Since the cyclone appears to be generally steady in strength since that time, the wind speed is held at that value. Both the NOAA and Air Force Hurricane Hunters will be investigating Delta later today, and that data will help us assess its strength and structure. The track forecast reasoning is unchanged. Delta is currently moving northwestward at 13 kt on the southwestern periphery of an Atlantic subtropical ridge. The western portion of the ridge is expected to weaken later today as a trough moves eastward across the south-central United States. This change in the steering pattern should cause Delta to turn northward by late tonight and north-northeastward by Friday night. This motion should take the core of the hurricane to the Louisiana coast in a little more than 36 hours (sometime Friday afternoon or evening). After landfall, a turn to the northeast is forecast as a larger trough approaches Delta from the west. The models are in very good agreement, and the NHC track forecast is just an update of the previous one. Delta is expected to continue gradually strengthening during the next 24 hours while it remains over warm deep waters and in an environment of low wind shear and a high amount of moisture. Based on these favorable environmental conditions and the trend in the models, Delta is forecast to regain major hurricane status by tonight. Just prior to making landfall, the cyclone is forecast to level off in strength or weaken slightly as it moves over the cooler shelf waters and into somewhat less favorable atmospheric conditions. Rapid weakening is forecast after Delta moves inland. The intensity models are in fairly good agreement, and the NHC intensity forecast lies near the middle of the guidance envelope. It should be noted that the NHC 1-2 day intensity forecasts are subject to errors of around 1 Saffir-Simpson category. The aircraft and fairly recent scatterometer data indicate that Delta is gradually growing in size. This trend is expected to continue as Delta approaches the Louisiana coast. The NHC wind radii forecast follows a consensus of the global and hurricane regional models. Key Messages: 1. Delta is expected to grow in size as it approaches the northern Gulf Coast, where life-threatening storm surge and dangerous hurricane-force winds are likely beginning Friday, particularly for portions of the Louisiana coast. Storm Surge and Hurricane Warnings are in effect, and residents in these areas should follow advice given by local officials and rush preparedness actions to completion. 2. Significant flash, urban, small stream and minor to isolated moderate river flooding is likely Friday and Saturday from portions of the central Gulf Coast into portions of the Lower Mississippi Valley. As Delta moves farther inland, heavy rainfall is expected in the Ohio Valley and Mid-Atlantic this weekend. FORECAST POSITIONS AND MAX WINDS INIT 08/0900Z 23.4N 91.8W 85 KT 100 MPH 12H 08/1800Z 24.6N 93.0W 95 KT 110 MPH 24H 09/0600Z 26.4N 93.7W 100 KT 115 MPH 36H 09/1800Z 28.8N 93.4W 90 KT 105 MPH 48H 10/0600Z 31.3N 92.4W 55 KT 65 MPH...INLAND 60H 10/1800Z 33.3N 90.9W 30 KT 35 MPH...INLAND 72H 11/0600Z 34.6N 89.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 96H 12/0600Z...DISSIPATED $$ Forecaster Cangialosi

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