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Summary for Tropical Storm Harvey (AT4/AL092017)

2017-08-27 22:46:31| National Hurricane Center (Atlantic)

...UNPRECEDENTED FLOODING OCCURING OVER SOUTHEASTERN TEXAS... ...DO NOT ATTEMPT TO TRAVEL IN THE AFFECTED AREA IF YOU ARE IN A SAFE PLACE AND DO NOT DRIVE INTO FLOODED ROADWAYS... As of 4:00 PM CDT Sun Aug 27 the center of Harvey was located near 29.0, -97.0 with movement SE at 2 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 40 mph.

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Tropical Storm Harvey Public Advisory Number 30

2017-08-27 22:46:31| National Hurricane Center (Atlantic)

Issued at 400 PM CDT Sun Aug 27 2017 000 WTNT34 KNHC 272046 TCPAT4 BULLETIN Tropical Storm Harvey Advisory Number 30 NWS National Hurricane Center Miami FL AL092017 400 PM CDT Sun Aug 27 2017 ...UNPRECEDENTED FLOODING OCCURING OVER SOUTHEASTERN TEXAS... ...DO NOT ATTEMPT TO TRAVEL IN THE AFFECTED AREA IF YOU ARE IN A SAFE PLACE AND DO NOT DRIVE INTO FLOODED ROADWAYS... SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...29.0N 97.0W ABOUT 25 MI...35 KM NW OF VICTORIA TEXAS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...SE OR 140 DEGREES AT 2 MPH...4 KM/H MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: A Tropical Storm Watch has been issued for the coast of Texas from north of Sargent to San Luis Pass. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Port O'Connor to Sargent Texas A Tropical Storm Watch is in effect for... * North of Sargent to San Luis Pass Texas Catastrophic and life-threatening flooding is occurring in southeastern Texas, and flash flood emergencies are in effect for portions of this area. Please see warnings and other products issued by your local National Weather Service office for additional information on this life-threatening situation. 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 48-HOUR OUTLOOK ------------------------------ At 400 PM CDT (2100 UTC), the center of Tropical Storm Harvey was located near latitude 29.0 North, longitude 97.0 West. Harvey is drifting toward the southeast near 2 mph (4 km/h), and a slow southeastward motion is expected over the next couple of days. On the forecast track, the center of Harvey is forecast to move off the middle Texas coast on Monday and meander just offshore through Monday night. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Little change in strength is forecast during the next 24 hours. Some slight restrengthening is possible after the center moves off the coast on Monday night and Tuesday. Tropical-storm-force winds extend outward up to 140 miles (220 km) primarily over water to the east of the center. The estimated minimum central pressure is 1000 mb (29.53 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Harvey is expected to produce additional rainfall accumulations of 15 to 25 inches through Friday over the upper Texas coast and into southwestern Louisiana. Isolated storm totals may reach 50 inches over the upper Texas coast, including the Houston/Galveston metropolitan area. These rains are currently producing catastrophic and life-threatening flooding, and flash flood emergencies are in effect for portions of southeastern Texas. DO NOT ATTEMPT TO TRAVEL IN THE AFFECTED AREA IF YOU ARE IN A SAFE PLACE. DO NOT DRIVE INTO FLOODED ROADWAYS. Please see warnings and products issued by your local National Weather Service office for additional information on this life-threatening situation. Elsewhere, Harvey is expected to produce total rain accumulations of 5 to 15 inches farther south into the middle Texas coast, farther west toward the Texas Hill Country, and farther east across south- central Louisiana. A list of rainfall observations compiled by the NOAA Weather Prediction Center can be found at: www.wpc.ncep.noaa.gov/discussions/nfdscc1.html 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 is expected to reach the following heights above ground if the peak surge occurs at the time of high tide... Port Aransas to Morgan City including Galveston Bay...1 to 3 ft The deepest water will occur along the immediate coast near the area of onshore winds, where the surge will be accompanied by large and destructive 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: Tropical storm conditions are occurring in an area near the center of Harvey and over portions of the tropical storm warning area along the coast. Tropical storm conditions are likely to persist in areas of onshore flow within the warning area during the next day or so. Tropical storm conditions are possible within the watch area by Monday night. SURF: Swells generated by Harvey are affecting the coasts of Texas and Louisiana. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. TORNADOES: A few tornadoes are possible through Monday near the upper Texas coast and into far southwest Louisiana. NEXT ADVISORY ------------- Next intermediate advisory at 700 PM CDT. Next complete advisory at 1000 PM CDT. $$ Forecaster Brown

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Tropical Storm Harvey Forecast Advisory Number 30

2017-08-27 22:45:31| National Hurricane Center (Atlantic)

Issued at 2100 UTC SUN AUG 27 2017 000 WTNT24 KNHC 272045 TCMAT4 TROPICAL STORM HARVEY FORECAST/ADVISORY NUMBER 30 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092017 2100 UTC SUN AUG 27 2017 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... A TROPICAL STORM WATCH HAS BEEN ISSUED FOR THE COAST OF TEXAS FROM NORTH OF SARGENT TO SAN LUIS PASS. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * PORT O'CONNOR TO SARGENT TEXAS A TROPICAL STORM WATCH IS IN EFFECT FOR... * NORTH OF SARGENT TO SAN LUIS PASS TEXAS CATASTROPHIC AND LIFE-THREATENING FLOODING IS OCCURRING IN SOUTHEASTERN TEXAS...AND FLASH FLOOD EMERGENCIES ARE IN EFFECT FOR PORTIONS OF THIS AREA. PLEASE SEE WARNINGS AND OTHER PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS LIFE-THREATENING SITUATION. TROPICAL STORM CENTER LOCATED NEAR 29.0N 97.0W AT 27/2100Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE SOUTHEAST OR 140 DEGREES AT 2 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT.......120NE 60SE 30SW 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 29.0N 97.0W AT 27/2100Z AT 27/1800Z CENTER WAS LOCATED NEAR 29.0N 97.2W FORECAST VALID 28/0600Z 28.7N 96.8W...INLAND MAX WIND 35 KT...GUSTS 45 KT. 34 KT...120NE 60SE 20SW 30NW. FORECAST VALID 28/1800Z 28.4N 96.4W...NEAR THE COAST MAX WIND 35 KT...GUSTS 45 KT. 34 KT...120NE 90SE 20SW 30NW. FORECAST VALID 29/0600Z 28.2N 96.0W...OVER WATER MAX WIND 40 KT...GUSTS 50 KT. 34 KT...120NE 90SE 20SW 30NW. FORECAST VALID 29/1800Z 28.4N 95.6W...OVER WATER MAX WIND 40 KT...GUSTS 50 KT. 34 KT...120NE 90SE 30SW 40NW. FORECAST VALID 30/1800Z 29.9N 95.2W...INLAND MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 80NE 100SE 30SW 30NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 31/1800Z 31.8N 94.7W...INLAND MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 01/1800Z 33.5N 93.4W...INLAND MAX WIND 25 KT...GUSTS 35 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 29.0N 97.0W NEXT ADVISORY AT 28/0300Z $$ FORECASTER BROWN

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Summary for Tropical Storm Harvey (AT4/AL092017)

2017-08-27 19:59:48| National Hurricane Center (Atlantic)

...UNPRECEDENTED FLOODING OCCURING OVER SOUTHEASTERN TEXAS... ...DO NOT ATTEMPT TO TRAVEL IN THE AFFECTED AREA IF YOU ARE IN A SAFE PLACE AND DO NOT DRIVE INTO FLOODED ROADWAYS... As of 1:00 PM CDT Sun Aug 27 the center of Harvey was located near 29.0, -97.2 with movement SE at 2 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 40 mph.

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Tropical Storm Harvey Public Advisory Number 29A

2017-08-27 19:59:48| National Hurricane Center (Atlantic)

Issued at 100 PM CDT Sun Aug 27 2017 000 WTNT34 KNHC 271759 TCPAT4 BULLETIN Tropical Storm Harvey Intermediate Advisory Number 29A NWS National Hurricane Center Miami FL AL092017 100 PM CDT Sun Aug 27 2017 ...UNPRECEDENTED FLOODING OCCURING OVER SOUTHEASTERN TEXAS... ...DO NOT ATTEMPT TO TRAVEL IN THE AFFECTED AREA IF YOU ARE IN A SAFE PLACE AND DO NOT DRIVE INTO FLOODED ROADWAYS... SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...29.0N 97.2W ABOUT 25 MI...35 KM NW OF VICTORIA TEXAS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...SE OR 145 DEGREES AT 2 MPH...4 KM/H MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Port O'Connor to Sargent Texas Catastrophic and life-threatening flooding is occurring in southeastern Texas, and flash flood emergencies are in effect for portions of this area. Please see warnings and other products issued by your local National Weather Service office for additional information on this life-threatening situation. 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 48-HOUR OUTLOOK ------------------------------ At 100 PM CDT (1800 UTC), the center of Tropical Storm Harvey was located near latitude 29.0 North, longitude 97.2 West. Harvey is moving toward the southeast near 2 mph (4 km/h), and a slow southeastward to east-southeastward motion is expected over the next couple of days. On the forecast track, the center will move very near the coast of southeastern Texas on Monday. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Little change in strength is forecast during the next 48 hours. Tropical-storm-force winds extend outward up to 175 miles (280 km) primarily over water to the east and northeast of the center. The estimated minimum central pressure is 1000 mb (29.53 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Harvey is expected to produce additional rainfall accumulations of 15 to 25 inches through Friday over the middle and upper Texas coast, including the Houston/Galveston metropolitan area. Isolated storm totals may reach 50 inches in this region. These rains are currently producing catastrophic and life- threatening flooding, and flash flood emergencies are in effect for portions of southeastern Texas. DO NOT ATTEMPT TO TRAVEL IN THE AFFECTED AREA IF YOU ARE IN A SAFE PLACE. DO NOT DRIVE INTO FLOODED ROADWAYS. Please see warnings and other products issued by your local National Weather Service office for additional information on this dire and life-threatening situation. Elsewhere, Harvey is expected to produce total rain accumulations of 5 to 15 inches farther south toward the lower Texas coast, farther west toward the Texas Hill Country, and farther east through southwest and central Louisiana. A list of rainfall observations compiled by the NOAA Weather Prediction Center can be found at: www.wpc.ncep.noaa.gov/discussions/nfdscc1.html 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 is expected to reach the following heights above ground if the peak surge occurs at the time of high tide... Port Aransas to High Island including Galveston Bay...1 to 3 ft High Island to Morgan City...1 to 2 ft The deepest water will occur along the immediate coast near the area of onshore winds, where the surge will be accompanied by large and destructive 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: Tropical storm conditions are occurring in an area near the center and over portions of the tropical storm warning area along the coast. Tropical storm conditions are likely to persist in areas of onshore flow within the warning area during the next day or so. SURF: Swells generated by Harvey are affecting the coasts of Texas and Louisiana. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. TORNADOES: A few tornadoes are possible today and tonight near the middle and upper Texas coast into southwest Louisiana. NEXT ADVISORY ------------- Next complete advisory at 400 PM CDT. $$ Forecaster Brown

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