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Tropical Storm Gonzalo Public Advisory Number 9

2020-07-23 22:41:30| National Hurricane Center (Atlantic)

Issued at 500 PM AST Thu Jul 23 2020 000 WTNT32 KNHC 232041 TCPAT2 BULLETIN Tropical Storm Gonzalo Advisory Number 9 NWS National Hurricane Center Miami FL AL072020 500 PM AST Thu Jul 23 2020 ...GONZALO CONTINUES WESTWARD... ...EXPECTED TO BEGIN AFFECTING PORTIONS OF THE SOUTHERN WINDWARD ISLANDS ON SATURDAY... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...9.8N 49.4W ABOUT 810 MI...1305 KM E OF THE SOUTHERN WINDWARD ISLANDS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...W OR 275 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... The government of Trinidad and Tobago has issued a Tropical Storm Watch for Tobago and Grenada. SUMMARY OF WATCHES AND WARNING IN EFFECT... A Hurricane Watch is in effect for... * Barbados * St. Vincent and the Grenadines A Tropical Storm Watch is in effect for... * Tobago * Grenada A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in the Windward Islands should monitor the progress of this system. Additional watches or warnings will likely be required for some of these islands tonight or on Friday. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Tropical Storm Gonzalo was located near latitude 9.8 North, longitude 49.4 West. Gonzalo is moving toward the west near 13 mph (20 km/h). A westward to west-northwestward motion with an increase in forward speed is expected through the weekend. On the forecast track, the center of Gonzalo will approach the southern Windward Islands Friday night and move across the islands Saturday and Saturday evening. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Some strengthening is forecast during the next day or two, and there is still a chance that Gonzalo could become a hurricane. Weakening is expected after Gonzalo moves into the Caribbean Sea. Gonzalo is a tiny tropical storm, and tropical-storm-force winds extend outward up to 25 miles (35 km) from the center. The estimated minimum central pressure is 1000 mb (29.53 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Gonzalo can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC. WIND: Hurricane or tropical storm conditions are possible within the respective watch areas on Saturday. RAINFALL: Gonzalo is expected to produce total rain accumulations of 2 to 5 inches, with isolated maximum amounts of 7 inches in Barbados and the Windward Islands from Friday night through Sunday night. Gonzalo is also expected to produce total rain accumulations of 1 to 2 inches in Trinidad and Tobago. Rainfall in Barbados and the Windward Islands could lead to life-threatening flash floods. NEXT ADVISORY ------------- Next intermediate advisory at 800 PM AST. Next complete advisory at 1100 PM AST. $$ Forecaster Berg

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Tropical Depression Eight Public Advisory Number 3A

2020-07-23 19:34:53| National Hurricane Center (Atlantic)

Issued at 100 PM CDT Thu Jul 23 2020 000 WTNT33 KNHC 231734 TCPAT3 BULLETIN Tropical Depression Eight Intermediate Advisory Number 3A NWS National Hurricane Center Miami FL AL082020 100 PM CDT Thu Jul 23 2020 ...HURRICANE HUNTER AIRCRAFT FINDS THE DEPRESSION IS TO THE SOUTHEAST OF THE PREVIOUS ADVISORY... ...HEAVY RAINS LIKELY OVER PORTIONS OF TEXAS BY THIS WEEKEND... SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...26.0N 90.3W ABOUT 415 MI...665 KM ESE OF PORT OCONNOR TEXAS MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Port Mansfield to High Island Texas A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere along the Texas and Louisiana coast should monitor the progress of this system. Tropical Storm Warnings may be required for portions of the Watch area later today. 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 100 PM CDT (1800 UTC), the center of Tropical Depression Eight was located by an Air Force Reserve Hurricane Hunter aircraft near latitude 26.0 North, longitude 90.3 West. The depression is moving toward the west-northwest near 7 mph (11 km/h), and a west- northwestward to westward motion is expected during the next couple of days. On the forecast track, the center of the depression is expected to move across the northwestern Gulf of Mexico today and Friday and make landfall along the Texas coast on Saturday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Slow strengthening is expected, and the depression could become a tropical storm during the next 12 to 24 hours. The latest minimum central pressure reported by the Hurricane Hunter Aircraft is 1008 mb (29.77 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Depression Eight can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC. WIND: Tropical storm conditions are possible within the watch area by Friday night. RAINFALL: The tropical depression is expected to produce 3 to 5 inches of rain with isolated maximum totals of 8 inches through Monday along the Gulf Coast from Louisiana to the Lower Texas Coast, and inland through south-central Texas and the Rio Grande Valley. This rain may result in flash flooding, rapid rises on small streams, and isolated minor flooding across the west-central Gulf Coast and into portions of south Texas. SURF: Swells generated by the depression are expected to increase and affect much of the Texas and Louisiana coasts in a day or two. 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 400 PM CDT. $$ Forecaster Beven

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Tropical Storm Gonzalo Public Advisory Number 8A

2020-07-23 19:33:25| National Hurricane Center (Atlantic)

Issued at 200 PM AST Thu Jul 23 2020 000 WTNT32 KNHC 231733 TCPAT2 BULLETIN Tropical Storm Gonzalo Intermediate Advisory Number 8A NWS National Hurricane Center Miami FL AL072020 200 PM AST Thu Jul 23 2020 ...GONZALO A LITTLE WEAKER... SUMMARY OF 200 PM AST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...9.7N 48.8W ABOUT 850 MI...1370 KM E OF THE SOUTHERN WINDWARD ISLANDS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... None. SUMMARY OF WATCHES AND WARNING IN EFFECT... A Hurricane Watch is in effect for... * Barbados * St. Vincent and the Grenadines A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Interests in the Windward Islands should monitor the progress of this system. Additional watches or warnings will likely be required for some of these islands later today. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 PM AST (1800 UTC), the center of Tropical Storm Gonzalo was located near latitude 9.7 North, longitude 48.8 West. Gonzalo is moving toward the west near 14 mph (22 km/h). A westward to west-northwestward motion with an increase in forward speed is expected through the weekend. On the forecast track, the center of Gonzalo will approach the southern Windward Islands Friday night and move across the islands Saturday and Saturday evening. Satellite-derived wind data indicate that maximum sustained winds have decreased to near 60 mph (95 km/h) with higher gusts. Some re-strengthening is possible during the next couple of days, and there is still a chance that Gonzalo could become a hurricane. The satellite wind data indicate that Gonzalo is an even smaller storm than previously thought, and tropical-storm-force winds only extend outward up to 25 miles (35 km) from the center. The estimated minimum central pressure is 1000 mb (29.53 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Gonzalo can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC. WIND: Hurricane or tropical storm conditions are possible within the watch area on Saturday. RAINFALL: Gonzalo is expected to produce total rain accumulations of 2 to 5 inches, with isolated maximum amounts of 7 inches in Barbados and the Windward Islands from Friday night through Sunday night. Gonzalo is also expected to produce total rain accumulations of 1 to 2 inches in Trinidad and Tobago. Rainfall in Barbados and the Windward Islands could lead to life-threatening flash floods. NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Berg

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Tropical Depression Eight Public Advisory Number 3

2020-07-23 16:49:52| National Hurricane Center (Atlantic)

Issued at 1000 AM CDT Thu Jul 23 2020 000 WTNT33 KNHC 231449 TCPAT3 BULLETIN Tropical Depression Eight Advisory Number 3 NWS National Hurricane Center Miami FL AL082020 1000 AM CDT Thu Jul 23 2020 ...DEPRESSION GETTING BETTER ORGANIZED OVER THE CENTRAL GULF OF MEXICO... ...HEAVY RAINS LIKELY OVER PORTIONS OF TEXAS BY THIS WEEKEND... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...26.3N 90.7W ABOUT 380 MI...610 KM ESE OF PORT OCONNOR TEXAS MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Port Mansfield to High Island Texas A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere along the Texas and Louisiana coast should monitor the progress of this system. Tropical Storm Warnings may be required for portions of the Watch area later today. 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 Tropical Depression Eight was located near latitude 26.3 North, longitude 90.7 West. The depression is moving toward the west-northwest near 9 mph (15 km/h), and a west-northwestward to westward motion is expected during the next couple of days. On the forecast track, the center of the depression is expected to move across the northwestern Gulf of Mexico today and Friday and make landfall along the Texas coast on Saturday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Slow strengthening is expected, and the depression could become a tropical storm during the next 12 to 24 hours. An Air Force Reserve Hurricane Hunter aircraft is currently enroute to investigate the depression. The estimated minimum central pressure is 1007 mb (29.74 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are possible within the watch area by Friday night. RAINFALL: The tropical depression is expected to produce 3 to 5 inches of rain with isolated maximum totals of 8 inches through Monday along the Gulf Coast from Louisiana to the Lower Texas Coast, and inland through south-central Texas and the Rio Grande Valley. This rain may result in flash flooding, rapid rises on small streams, and isolated minor flooding across the west-central Gulf Coast and into portions of south Texas. SURF: Swells generated by the depression are expected to increase and affect much of the Texas and Louisiana coasts in a day or two. 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 Beven

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Hurricane Douglas Public Advisory Number 13

2020-07-23 16:46:22| National Hurricane Center (East Pacific)

Issued at 500 AM HST Thu Jul 23 2020 000 WTPZ33 KNHC 231446 TCPEP3 BULLETIN Hurricane Douglas Advisory Number 13 NWS National Hurricane Center Miami FL EP082020 500 AM HST Thu Jul 23 2020 ...DOUGLAS MOVING QUICKLY WEST-NORTHWESTWARD AS A CATEGORY-3 HURRICANE... SUMMARY OF 500 AM HST...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...13.6N 135.9W ABOUT 1335 MI...2150 KM ESE OF HILO HAWAII MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 20 MPH...31 KM/H MINIMUM CENTRAL PRESSURE...964 MB...28.47 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in the Hawaiian Islands should monitor the progress of Douglas. DISCUSSION AND OUTLOOK ---------------------- At 500 AM HST (1500 UTC), the eye of Hurricane Douglas was located near latitude 13.6 North, longitude 135.9 West. Douglas is moving toward the west-northwest near 20 mph (31 km/h), and this motion is expected to continue for the next few days with a gradual decrease in forward speed and a slight turn toward the west. Maximum sustained winds remain near 120 mph (195 km/h) with higher gusts. Douglas is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some strengthening is possible today before a gradual weakening starts on Friday and continues through the weekend. Hurricane-force winds extend outward up to 30 miles (45 km) from the center, and tropical-storm-force winds extend outward up to 90 miles (150 km). The estimated minimum central pressure is 964 mb (28.47 inches). HAZARDS AFFECTING LAND ---------------------- None. Key messages for Douglas can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP3 and WMO header WTPZ43 KNHC. NEXT ADVISORY ------------- Next complete advisory at 1100 AM HST. $$ Forecaster Blake

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