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Hurricane Teddy Graphics
2020-09-16 16:39:44| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Wed, 16 Sep 2020 14:39:44 GMT Wind Speed Probabilities last updated Wed, 16 Sep 2020 15:39:25 GMT
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Hurricane Sally Forecast Advisory Number 22
2020-09-16 16:39:33| National Hurricane Center (Atlantic)
Issued at 1500 UTC WED SEP 16 2020 000 WTNT24 KNHC 161439 TCMAT4 HURRICANE SALLY FORECAST/ADVISORY NUMBER 22 NWS NATIONAL HURRICANE CENTER MIAMI FL AL192020 1500 UTC WED SEP 16 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED WEST OF THE MISSISSIPPI/ALABAMA BORDER. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A STORM SURGE WARNING IS IN EFFECT FOR... * DAUPHIN ISLAND ALABAMA TO THE WALTON/BAY COUNTY LINE FLORIDA A HURRICANE WARNING IS IN EFFECT FOR... * MISSISSIPPI/ALABAMA BORDER TO THE OKALOOSA/WALTON COUNTY LINE FLORIDA A TROPICAL STORM WARNING IS IN EFFECT FOR... * EAST OF THE OKALOOSA/WALTON COUNTY LINE FLORIDA TO INDIAN PASS FLORIDA A STORM SURGE WARNING MEANS THERE IS A DANGER OF LIFE-THREATENING INUNDATION...FROM RISING WATER MOVING INLAND FROM THE COASTLINE IN THE INDICATED LOCATIONS. FOR A DEPICTION OF AREAS AT RISK...PLEASE SEE THE NATIONAL WEATHER SERVICE STORM SURGE WATCH/WARNING GRAPHIC...AVAILABLE AT HURRICANES.GOV. THIS IS A LIFE-THREATENING SITUATION. A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE OCCURRING SOMEWHERE WITHIN THE WARNING AREA. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE OCCURRING WITHIN THE WARNING AREA. HURRICANE CENTER LOCATED NEAR 30.6N 87.4W AT 16/1500Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 30 DEGREES AT 4 KT ESTIMATED MINIMUM CENTRAL PRESSURE 975 MB MAX SUSTAINED WINDS 70 KT WITH GUSTS TO 85 KT. 64 KT....... 30NE 25SE 0SW 25NW. 50 KT....... 60NE 40SE 30SW 50NW. 34 KT....... 90NE 110SE 80SW 70NW. 12 FT SEAS.. 0NE 135SE 90SW 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 30.6N 87.4W AT 16/1500Z AT 16/1200Z CENTER WAS LOCATED NEAR 30.4N 87.6W FORECAST VALID 17/0000Z 31.3N 86.7W...INLAND MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 70NE 90SE 60SW 50NW. FORECAST VALID 17/1200Z 32.4N 85.4W...INLAND MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 18/0000Z 33.6N 83.1W...INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 18/1200Z 34.6N 80.2W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 19/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 30.6N 87.4W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 16/1800Z NEXT ADVISORY AT 16/2100Z $$ FORECASTER BROWN
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Hurricane Sally Public Advisory Number 22
2020-09-16 16:39:33| National Hurricane Center (Atlantic)
Issued at 1000 AM CDT Wed Sep 16 2020 000 WTNT34 KNHC 161439 TCPAT4 BULLETIN Hurricane Sally Advisory Number 22 NWS National Hurricane Center Miami FL AL192020 1000 AM CDT Wed Sep 16 2020 ...CATASTROPHIC AND LIFE-THREATENING FLOODING OCCURRING OVER PORTIONS OF THE FLORIDA PANHANDLE AND SOUTHERN ALABAMA... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...30.6N 87.4W ABOUT 15 MI...20 KM WNW OF PENSACOLA FLORIDA MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H PRESENT MOVEMENT...NNE OR 30 DEGREES AT 5 MPH...7 KM/H MINIMUM CENTRAL PRESSURE...975 MB...28.79 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Tropical Storm Warning has been discontinued west of the Mississippi/Alabama border. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Dauphin Island Alabama to the Walton/Bay County Line Florida A Hurricane Warning is in effect for... * Mississippi/Alabama border to the Okaloosa/Walton County line Florida A Tropical Storm Warning is in effect for... * East of the Okaloosa/Walton County line Florida to Indian Pass Florida A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. A Hurricane Warning means that hurricane conditions are occurring somewhere within the warning area. A Tropical Storm Warning means that tropical storm conditions are occurring within the warning area. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND OUTLOOK ---------------------- At 1000 AM CDT (1500 UTC), the center of Hurricane Sally was located by NWS Doppler radar and surface observations near latitude 30.6 North, longitude 87.4 West. Sally is moving toward the north- northeast near 5 mph (7 km/h), and a north-northeastward to northeastward motion at a slightly faster forward speed is expected later today and tonight. A faster northeastward motion is forecast Thursday and Thursday night. On the forecast track, the center of Sally will move across the extreme western Florida panhandle and southeastern Alabama through early Thursday, move over central Georgia on Thursday, and move over South Carolina Thursday night. Maximum sustained winds have decreased to near 80 mph (130 km/h) with higher gusts. Additional weakening is expected as the center moves farther inland this afternoon and tonight, and Sally is forecast to become a tropical depression by Thursday morning. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 125 miles (205 km). A wind gust of 82 mph (135 km/h) was recently observed at the Pensacola Naval Air Station, in Pensacola, Florida. A wind gust of 68 mph (110 km/h) was recently reported at the Mobile Downtown Airport, in Mobile, Alabama. The estimated minimum central pressure based on surface observations is 975 mb (28.79 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Sally can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT4.shtml RAINFALL: Through this afternoon, Sally will produce additional rainfall totals of 8 to 12 inches with localized higher amounts possible along and just inland of the central Gulf Coast from west of Tallahassee, Florida to Mobile Bay, Alabama. Storm totals of 10 to 20 inches to isolated amounts of 35 inches are expected. Historic and catastrophic flooding, including widespread moderate to major river flooding, is unfolding. Sally will track across the Southeast through Friday, producing the following rainfall totals: Central Alabama to central Georgia: 4 to 8 inches, with isolated amounts of 12 inches. Significant flash and urban flooding is likely, as well as widespread minor to moderate flooding on some rivers. Western South Carolina into western and central North Carolina: 4 to 6 inches, with isolated amounts of 9 inches. Widespread flash and urban flooding is possible, as well as minor to moderate river flooding. Southeast Virginia: 2 to 5 inches, with isolated amounts of 7 inches. Scattered flash and urban flooding is possible, as well as scattered minor river flooding. STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... AL/FL Border to Okaloosa/Walton County Line, FL including Pensacola Bay and Choctawhatchee Bay...4-7 ft Okaloosa/Walton County Line, FL to Walton/Bay County Line, FL...2-4 ft Dauphin Island, AL to AL/FL Border including Bon Secour Bay...2-4 ft Walton/Bay County Line, FL to Chassahowitzka, FL including Saint Andrew Bay...1-3 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and damaging waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Hurricane conditions will continue this afternoon within portions of the hurricane warning area in Florida and Alabama. Tropical storm conditions will continue in portions of the warning areas through tonight. TORNADOES: A few tornadoes may occur today and tonight across portions of the Florida Panhandle, southeast Alabama, and southwest Georgia. SURF: Swells from Sally will continue to affect the Gulf Coast from the Florida Big Bend westward to southeastern Louisiana during the next day or so. 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 100 PM CDT. Next complete advisory at 400 PM CDT. $$ Forecaster Brown
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Hurricane Sally Wind Speed Probabilities Number 22
2020-09-16 16:39:33| National Hurricane Center (Atlantic)
Issued at 1500 UTC WED SEP 16 2020 000 FONT14 KNHC 161439 PWSAT4 HURRICANE SALLY WIND SPEED PROBABILITIES NUMBER 22 NWS NATIONAL HURRICANE CENTER MIAMI FL AL192020 1500 UTC WED SEP 16 2020 AT 1500Z THE CENTER OF HURRICANE SALLY WAS LOCATED NEAR LATITUDE 30.6 NORTH...LONGITUDE 87.4 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 70 KTS...80 MPH...130 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 12Z WED AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 12Z WED 00Z THU 12Z THU 00Z FRI 12Z FRI 12Z SAT 12Z SUN PERIODS TO TO TO TO TO TO TO 00Z THU 12Z THU 00Z FRI 12Z FRI 12Z SAT 12Z SUN 12Z MON FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT FAYETTEVILLE 34 X X( X) X( X) 4( 4) X( 4) X( 4) X( 4) CHARLOTTE NC 34 X X( X) 1( 1) 4( 5) X( 5) X( 5) X( 5) FLORENCE SC 34 X X( X) X( X) 7( 7) X( 7) X( 7) X( 7) COLUMBIA SC 34 X X( X) 2( 2) 7( 9) X( 9) X( 9) X( 9) LITTLE RIVER 34 X X( X) X( X) 3( 3) X( 3) X( 3) X( 3) MYRTLE BEACH 34 X X( X) X( X) 4( 4) X( 4) X( 4) X( 4) GEORGETOWN SC 34 X X( X) X( X) 4( 4) X( 4) X( 4) X( 4) CHARLESTON SC 34 X X( X) X( X) 3( 3) X( 3) X( 3) X( 3) BEAUFORT MCAS 34 X X( X) 1( 1) 2( 3) X( 3) X( 3) X( 3) ATLANTA GA 34 1 2( 3) 4( 7) X( 7) X( 7) X( 7) X( 7) AUGUSTA GA 34 X 1( 1) 5( 6) 5(11) X(11) X(11) X(11) TALLAHASSEE FL 34 2 2( 4) X( 4) X( 4) X( 4) X( 4) X( 4) ST MARKS FL 34 2 1( 3) X( 3) X( 3) X( 3) X( 3) X( 3) APALACHICOLA 34 3 X( 3) X( 3) X( 3) X( 3) X( 3) X( 3) PANAMA CITY FL 34 16 X(16) X(16) X(16) X(16) X(16) X(16) DESTIN EXEC AP 34 99 X(99) X(99) X(99) X(99) X(99) X(99) DESTIN EXEC AP 50 7 X( 7) X( 7) X( 7) X( 7) X( 7) X( 7) COLUMBUS GA 34 3 23(26) 2(28) X(28) X(28) X(28) X(28) COLUMBUS GA 50 X 3( 3) X( 3) X( 3) X( 3) X( 3) X( 3) MONTGOMERY AL 34 23 15(38) X(38) X(38) X(38) X(38) X(38) MONTGOMERY AL 50 1 2( 3) X( 3) X( 3) X( 3) X( 3) X( 3) WHITING FLD FL 34 99 X(99) X(99) X(99) X(99) X(99) X(99) WHITING FLD FL 50 99 X(99) X(99) X(99) X(99) X(99) X(99) WHITING FLD FL 64 82 X(82) X(82) X(82) X(82) X(82) X(82) PENSACOLA FL 34 99 X(99) X(99) X(99) X(99) X(99) X(99) PENSACOLA FL 50 99 X(99) X(99) X(99) X(99) X(99) X(99) PENSACOLA FL 64 99 X(99) X(99) X(99) X(99) X(99) X(99) MOBILE AL 34 99 X(99) X(99) X(99) X(99) X(99) X(99) PENSACOLA NAS 34 99 X(99) X(99) X(99) X(99) X(99) X(99) PENSACOLA NAS 50 99 X(99) X(99) X(99) X(99) X(99) X(99) PENSACOLA NAS 64 99 X(99) X(99) X(99) X(99) X(99) X(99) $$ FORECASTER BROWN
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Hurricane Teddy Forecast Discussion Number 17
2020-09-16 16:38:02| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Wed Sep 16 2020 000 WTNT45 KNHC 161437 TCDAT5 Hurricane Teddy Discussion Number 17 NWS National Hurricane Center Miami FL AL202020 1100 AM AST Wed Sep 16 2020 Teddy's overall appearance has changed little over the past several hours. Microwave and infrared satellite images depict a well-defined inner core with an eye evident in the microwave imagery. However, visible imagery reveals that the eye remains cloud filled. Over the past few hours, the coldest cloud tops and have become confined to the western portion of the circulation, which could be the early signs of the cyclone experiencing some westerly wind shear. The latest satellite intensity estimates remain unchanged from 6 h ago, and therefore the initial intensity will remain 85 kt. Environmental conditions appear favorable for additional strengthening over the next 18-24 h, and with the inner-core well defined, rapid intensification could resume shortly. By 36 h, increasing westerly wind shear and drier air should limit any further intensification, and possibly induce some weakening. Later on in the forecast period, Teddy could encounter some cooler waters due to upwelling caused by Paulette. This could also attribute to additional weakening. The latest NHC forecast is largely unchanged from the previous one, and is on the high end of the guidance. It should be noted that if the rapid intensification that has paused recently doe not resume soon, adjustments to the intensity forecast will be necessary. Teddy continues to move northwestward at about 10 kt. This motion is forecast to continue for the next few days, as the cyclone is steered by a mid-level ridge to its north and northeast. Late in the forecast period, the portion of the ridge north of Teddy is expected to erode as a mid-latitude trough digs across the northeastern United States. This evolution should cause the cyclone to turn north-northwest and possibly north by day 5. The track guidance is tightly clustered through day 3, then the spread increases after that time, likely due to how the models are handling the approaching trough. The NHC track forecast is close to the previous one and is near the various multi-model track consensus aids. On the forecast track, Teddy could make a close to approach to Bermuda in about 5 days. However, based on average 5-day track and intensity errors, it is too soon to know what type of impacts the cyclone could have on the island. FORECAST POSITIONS AND MAX WINDS INIT 16/1500Z 16.5N 49.7W 85 KT 100 MPH 12H 17/0000Z 17.5N 50.8W 95 KT 110 MPH 24H 17/1200Z 19.0N 52.3W 110 KT 125 MPH 36H 18/0000Z 20.4N 53.8W 115 KT 130 MPH 48H 18/1200Z 21.9N 55.3W 115 KT 130 MPH 60H 19/0000Z 23.5N 56.9W 110 KT 125 MPH 72H 19/1200Z 25.1N 58.7W 105 KT 120 MPH 96H 20/1200Z 28.3N 62.7W 95 KT 110 MPH 120H 21/1200Z 31.7N 64.1W 90 KT 105 MPH $$ Forecaster Latto
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