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Tropical Storm Isaias Forecast Advisory Number 30
2020-08-04 16:41:34| National Hurricane Center (Atlantic)
Issued at 1500 UTC TUE AUG 04 2020 000 WTNT24 KNHC 041441 TCMAT4 TROPICAL STORM ISAIAS FORECAST/ADVISORY NUMBER 30 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092020 1500 UTC TUE AUG 04 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED SOUTH OF DUCK...NORTH CAROLINA...INCLUDING THE PAMLICO AND ALBEMARLE SOUNDS. THE STORM SURGE WARNING HAS BEEN DISCONTINUED. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * NORTH OF DUCK NORTH CAROLINA TO EASTPORT MAINE * CHESAPEAKE BAY * TIDAL POTOMAC RIVER * DELAWARE BAY * LONG ISLAND AND LONG ISLAND SOUND * MARTHA'S VINEYARD...NANTUCKET...AND BLOCK ISLAND A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE NEXT 12 TO 18 HOURS. TROPICAL STORM CENTER LOCATED NEAR 39.1N 76.1W AT 04/1500Z POSITION ACCURATE WITHIN 25 NM PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 20 DEGREES AT 30 KT ESTIMATED MINIMUM CENTRAL PRESSURE 993 MB MAX SUSTAINED WINDS 60 KT WITH GUSTS TO 80 KT. 50 KT....... 60NE 60SE 0SW 0NW. 34 KT.......110NE 120SE 40SW 40NW. 12 FT SEAS..180NE 180SE 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 39.1N 76.1W AT 04/1500Z AT 04/1200Z CENTER WAS LOCATED NEAR 37.7N 76.8W FORECAST VALID 05/0000Z 43.2N 73.8W...INLAND MAX WIND 50 KT...GUSTS 65 KT. 50 KT... 40NE 70SE 20SW 0NW. 34 KT...120NE 180SE 40SW 40NW. FORECAST VALID 05/1200Z 48.2N 71.7W...POST-TROP/INLAND MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 0NE 180SE 0SW 0NW. FORECAST VALID 06/0000Z 52.0N 71.1W...POST-TROP/EXTRATROP MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 06/1200Z 53.6N 69.5W...POST-TROP/EXTRATROP MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 07/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 39.1N 76.1W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 04/1800Z NEXT ADVISORY AT 04/2100Z $$ FORECASTER STEWART
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MEDIA ADVISORY: 08/04/2020 Portland Water Bureau to Begin Annual Groundwater Maintenance Run
2020-08-04 16:20:20| PortlandOnline
Word Document, 2,290kbCategory: 2020
MEDIA ADVISORY: Portland Water Bureau to Begin Annual Groundwater Maintenance Run
2020-08-04 16:19:00| PortlandOnline
Tropical Storm Isaias Public Advisory Number 29A
2020-08-04 13:58:42| National Hurricane Center (Atlantic)
Issued at 800 AM EDT Tue Aug 04 2020 000 WTNT34 KNHC 041158 TCPAT4 BULLETIN Tropical Storm Isaias Intermediate Advisory Number 29A NWS National Hurricane Center Miami FL AL092020 800 AM EDT Tue Aug 04 2020 ...CENTER OF ISAIAS MOVING ACROSS SOUTHEASTERN VIRGINIA... ...STRONG WINDS...HEAVY RAINFALL...AND THE THREAT OF TORNADOES WILL SPREAD NORTHWARD ALONG THE MID-ATLANTIC COAST THIS MORNING... SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...37.7N 76.8W ABOUT 15 MI...20 KM SSE OF TAPPAHANNOCK VIRGINIA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...NNE OR 25 DEGREES AT 33 MPH...54 KM/H MINIMUM CENTRAL PRESSURE...993 MB...29.33 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Storm Surge Warning has been discontinued for the Neuse River North Carolina. The Storm Surge Watch has been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Pamlico and Albemarle Sounds * Ocracoke Inlet North Carolina to the North Carolina/Virginia border A Tropical Storm Warning is in effect for... * North of Surf City North Carolina to Eastport Maine * Pamlico and Albemarle Sounds * Chesapeake Bay * Tidal Potomac River * Delaware Bay * Long Island and Long Island Sound * Martha's Vineyard, Nantucket, and Block Island 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 at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within the next 24 hours. 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 800 AM EDT (1200 UTC), the center of Tropical Storm Isaias was located over southeastern Virginia near latitude 37.7 North, longitude 76.8 West. Isaias is moving toward the north-northeast near 33 mph (54 km/h), and this general motion accompanied by some additional increase in forward speed is expected through today. On the forecast track, the center of Isaias will continue to move near or along the coast of the mid-Atlantic states today, and move across the northeastern United States into southern Canada tonight. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Only gradual weakening is anticipated while Isaias moves north-northeastward near the mid-Atlantic coast today. A faster rate of weakening is expected to begin tonight, and the system is forecast to become post-tropical tonight or early Wednesday. Tropical-storm-force winds extend outward up to 140 miles (220 km) from the center. Sustained winds of 63 mph (101 km/h) and a gust to 77 mph (124 km/h) were recently reported at Third Island, Virginia, at the mouth of the Chesapeake Bay. The estimated minimum central pressure based on surface observations is 993 mb (29.33 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Isaias can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT4.shtml. 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... Cape Lookout to Ocracoke Inlet NC, including the Neuse River...1-2 ft Ocracoke Inlet to the North Carolina/Virginia border including Pamlico Sound, Albemarle Sound, and Pamlico River...3-5 ft North of the North Carolina/Virginia border to Martha's Vineyard including the Chesapeake Bay, the Tidal Potomac River, Delaware Bay, Long Island Sound, Block Island Sound, Narragansett Bay, Buzzards Bay, and Vineyard Sound...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 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: Widespread tropical-storm conditions are expected in the tropical storm warning area from North Carolina through the mid-Atlantic states, including portions of the Chesapeake Bay region today, with wind gusts to hurricane force possible. These winds could cause tree damage and power outages. Tropical storm conditions are expected to reach southern New England this afternoon and northern New England tonight. Gale-force winds are expected to spread into southeastern Quebec tonight and Wednesday. See products issued by Environment Canada for more information. RAINFALL: The following rainfall accumulations are expected along and near the track of Isaias: Central and eastern North Carolina into the Mid-Atlantic: 3 to 6 inches, isolated maximum totals 8 inches. Eastern New York into Vermont: 2 to 4 inches, isolated maximum totals 6 inches. Western Connecticut, western Massachusetts, New Hampshire and western Maine: 1 to 3 inches. Heavy rainfall along the East Coast, near the path of Isaias, will result in flash and urban flooding, some of which may be significant in North Carolina through the Mid-Atlantic and Northeast through tonight. Potentially life-threatening urban flooding is possible in D.C., Baltimore, and elsewhere along and just west of the I-95 corridor today. Widespread minor to moderate river flooding is likely across portions of the Carolinas and the Mid-Atlantic. Quick-responding rivers in the Northeast will also be susceptible to minor river flooding. TORNADOES: Tornadoes are most likely through midday from southeast Virginia to New Jersey. Tornadoes will remain possible this afternoon and evening from southeast New York across New England. SURF: Swells generated by Isaias will spread northward along the Mid-Atlantic and Northeast coasts of the United States today. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 AM EDT. Hourly Tropical Cyclone Update statements will begin at 900 AM EDT. $$ Forecaster Stewart
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Tropical Storm Isaias Public Advisory Number 29
2020-08-04 10:51:05| National Hurricane Center (Atlantic)
Issued at 500 AM EDT Tue Aug 04 2020 000 WTNT34 KNHC 040850 TCPAT4 BULLETIN Tropical Storm Isaias Advisory Number 29 NWS National Hurricane Center Miami FL AL092020 500 AM EDT Tue Aug 04 2020 ...CENTER OF ISAIAS NEARING SOUTHEAST VIRGINIA... ...STRONG WINDS...HEAVY RAINFALL...AND THE THREAT OF TORNADOES WILL SPREAD NORTHWARD ALONG THE MID-ATLANTIC COAST THIS MORNING... SUMMARY OF 500 AM EDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...36.3N 77.5W ABOUT 15 MI...25 KM SE OF ROANOKE RAPIDS NORTH CAROLINA ABOUT 85 MI...135 KM WSW OF NORFOLK VIRGINIA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...NNE OR 20 DEGREES AT 28 MPH...44 KM/H MINIMUM CENTRAL PRESSURE...993 MB...29.33 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: All warnings have been discontinued for the coast of North Carolina south of Surf City. The Storm Surge Watch south of Surf City has also been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Pamlico and Albemarle Sounds, including the Neuse and Pamlico Rivers * Ocracoke Inlet North Carolina to the North Carolina/Virginia border A Storm Surge Watch is in effect for... * Surf City to Ocracoke Inlet North Carolina A Tropical Storm Warning is in effect for... * North of Surf City North Carolina to Eastport Maine * Pamlico and Albemarle Sounds * Chesapeake Bay * Tidal Potomac River * Delaware Bay * Long Island and Long Island Sound * Martha's Vineyard, Nantucket, and Block Island 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 at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Storm Surge Watch means there is a possibility of life- threatening inundation, from rising water moving inland from the coastline. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, generally within 36 hours. 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 500 AM EDT (0900 UTC), the center of Tropical Storm Isaias was located over northeastern North Carolina near latitude 36.3 North, longitude 77.5 West. Isaias is moving toward the north-northeast near 28 mph (44 km/h), and this general motion accompanied by some additional increase in forward speed is expected through today. On the forecast track, the center of Isaias will to move into southeastern Virginia early this morning, near or along the coast of the mid-Atlantic states today, and across the northeastern United States into southern Canada tonight. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Only gradual weakening is anticipated while Isaias moves north-northeastward near the mid-Atlantic coast today. A faster rate of weakening is expected to begin tonight, and the system is forecast to become post-tropical tonight or early Wednesday. Tropical-storm-force winds extend outward up to 140 miles (220 km) from the center. Sustained winds of 48 mph (78 km/h) and a gust to 63 mph (102 km/h) was recently reported at Duck, North Carolina. Sustained winds of 39 mph (63 km/h) and a gust to 56 mph (91 km/h) were also reported at Poquoson, Virginia. The estimated minimum central pressure is 993 mb (29.33 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Isaias can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT4.shtml. 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... Little River Inlet SC to Surf City NC...1-2 ft Surf City to Ocracoke Inlet NC...2-4 ft Ocracoke Inlet to the North Carolina/Virginia border including Pamlico Sound, Albemarle Sound, Neuse and Pamlico Rivers...3-5 ft North of the North Carolina/Virginia border to Martha's Vineyard including the Chesapeake Bay, the Tidal Potomac River, Delaware Bay, Long Island Sound, Block Island Sound, Narragansett Bay, Buzzards Bay, and Vineyard Sound...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 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: Widespread tropical-storm conditions are expected in the tropical storm warning area from coastal North Carolina through the mid-Atlantic states, including portions of the Chesapeake Bay region today, with wind gusts to hurricane force possible. These winds could cause tree damage and power outages. Tropical storm conditions are expected to reach southern New England this afternoon and northern New England tonight. Gale-force winds are expected to spread into southeastern Quebec tonight and Wednesday. See products issued by Environment Canada for more information. RAINFALL: The following rainfall accumulations are expected along and near the track of Isaias: Central and eastern North Carolina into the Mid-Atlantic: 3 to 6 inches, isolated maximum totals 8 inches. Eastern New York into Vermont: 2 to 4 inches, isolated maximum totals 6 inches. Western Connecticut, western Massachusetts, New Hampshire and western Maine: 1 to 3 inches. Heavy rainfall along the East Coast, near the path of Isaias, will result in flash and urban flooding, some of which may be significant in North Carolina through the Mid-Atlantic and Northeast through tonight. Potentially life-threatening urban flooding is possible in D.C., Baltimore, and elsewhere along and just west of the I-95 corridor today. Widespread minor to moderate river flooding is likely across portions of the Carolinas and the Mid-Atlantic. Quick-responding rivers in the Northeast will also be susceptible to minor river flooding. TORNADOES: Tornadoes are most likely through midday from southeast Virginia to New Jersey. Tornadoes will remain possible this afternoon and evening from southeast New York across New England. SURF: Swells generated by Isaias are affecting portions of the southeast coast of the United States and will spread northward along the Mid-Atlantic and Northeast coasts of the United States today. 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 800 AM EDT. Next complete advisory at 1100 AM EDT. $$ Forecaster Brown/Berg
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