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Tropical Storm Delta Public Advisory Number 23A
2020-10-10 13:51:57| National Hurricane Center (Atlantic)
Issued at 700 AM CDT Sat Oct 10 2020 000 WTNT31 KNHC 101151 TCPAT1 BULLETIN Tropical Storm Delta Intermediate Advisory Number 23A NWS National Hurricane Center Miami FL AL262020 700 AM CDT Sat Oct 10 2020 ...DELTA NOW OVER NORTHEASTERN LOUISIANA... ...HEAVY RAINS AND TROPICAL STORM FORCE WINDS CONTINUE NEAR ITS PATH... SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...32.6N 91.3W ABOUT 45 MI...70 KM E OF MONROE LOUISIANA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...NNE OR 25 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...992 MB...29.29 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: No coastal watches and warnings are in effect. 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 700 AM CDT (1200 UTC), the center of Tropical Storm Delta was located near latitude 32.6 North, longitude 91.3 West. Delta is moving toward the north-northeast near 16 mph (26 km/h). A motion toward the northeast is expected to begin later today and continue through Sunday night. On the forecast track, the center of Delta should move across northeastern Louisiana this morning and then across northern Mississippi and into the Tennessee Valley later today and Sunday. Maximum sustained winds have decreased to near 40 mph (65 km/h) with higher gusts. Additional weakening is forecast, and Delta is expected to become a tropical depression later today. Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center. Hawkins Field in Jackson, Mississippi recently reported a wind gust of 51 mph (81 km/h). The estimated minimum central pressure based on surface observations is 992 mb (29.29 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Delta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1, WMO header WTNT41 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT1.shtml. STORM SURGE: Water levels will continue to subside today along the Louisiana coast. Consult products issued by your local National Weather Service forecast office for additional information. RAINFALL: For northern Louisiana, southeast Arkansas, and western Mississippi, Delta is expected to produce an additional 2 to 5 inches of rain, with isolated storm totals of 10 inches. These rainfall amounts will lead to flash, urban, small stream, and minor river flooding. As the remnants of Delta move further inland, 1 to 3 inches of rain, with locally higher amounts, are expected in the Tennessee Valley and Mid Atlantic through the weekend. There is a potential for 3 to 6 inches in the Southern Appalachians, which could lead to flash, urban, small stream, along with isolated minor river flooding. TORNADOES: A few tornadoes are possible today and tonight across eastern Mississippi, Alabama, the Florida Panhandle, and western/central Georgia. SURF: Swells from Delta are gradually subsiding along the northern Gulf coast. Please consult products from your local weather office for additional information. NEXT ADVISORY ------------- Next complete advisory at 1000 AM CDT. $$ Forecaster Beven
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Tropical Storm Delta Forecast Discussion Number 23
2020-10-10 10:36:02| National Hurricane Center (Atlantic)
Issued at 400 AM CDT Sat Oct 10 2020 000 WTNT41 KNHC 100835 TCDAT1 Tropical Storm Delta Discussion Number 23 NWS National Hurricane Center Miami FL AL262020 400 AM CDT Sat Oct 10 2020 Delta continues to track north-northeastward across Louisiana bringing tropical-storm-force winds and heavy rains to portions of Louisiana, Mississippi, and Arkansas. Doppler radar images show that the storm is asymmetric, with most of the heavy rains occurring on the north side of the circulation. Based on surface observations, the initial intensity is lowered to 40 kt for this advisory. Continued weakening is forecast, and Delta should become a tropical depression later today, and dissipate entirely in a couple of days. The tropical storm is moving north-northeastward at 14 kt. A bend to the northeast is expected to occur later today, and that motion should continue until the system opens into a trough in 48 to 60 hours. Even though Delta is forecast to dissipate over or near Kentucky, the moisture associated with its remnants will continue northeastward and move across the mid-Atlantic and northeast U.S. early next week. Key Messages: 1. Water levels will continue to subside today along the Louisiana coast. Consult products issued by your local National Weather Service forecast office for additional information. 2. Tropical-storm-force winds will persist for a few more hours near the path of Deltas center. 3. Heavy rainfall will lead to flash flooding and minor river flooding across portions of the Lower Mississippi and Tennessee Valleys today, and into the Southern Appalachians through Sunday. Minor to major river flooding will continue across portions of Louisiana and Mississippi though much of next week. FORECAST POSITIONS AND MAX WINDS INIT 10/0900Z 31.8N 91.8W 40 KT 45 MPH...INLAND 12H 10/1800Z 33.2N 90.6W 30 KT 35 MPH...INLAND 24H 11/0600Z 34.4N 88.8W 25 KT 30 MPH...INLAND 36H 11/1800Z 36.0N 86.6W 20 KT 25 MPH...POST-TROP/REMNT LOW 48H 12/0600Z 38.2N 83.7W 20 KT 25 MPH...POST-TROP/REMNT LOW 60H 12/1800Z...DISSIPATED $$ Forecaster Cangialosi
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Summary for Tropical Storm Delta (AT1/AL262020)
2020-10-10 10:35:26| National Hurricane Center (Atlantic)
...DELTA CONTINUES MOVING INLAND... ...HEAVY RAINS AND TROPICAL STORM FORCE WINDS CONTINUE NEAR ITS PATH... As of 4:00 AM CDT Sat Oct 10 the center of Delta was located near 31.8, -91.8 with movement NNE at 16 mph. The minimum central pressure was 990 mb with maximum sustained winds of about 45 mph.
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Tropical Storm Delta Public Advisory Number 23
2020-10-10 10:35:26| National Hurricane Center (Atlantic)
Issued at 400 AM CDT Sat Oct 10 2020 000 WTNT31 KNHC 100835 TCPAT1 BULLETIN Tropical Storm Delta Advisory Number 23 NWS National Hurricane Center Miami FL AL262020 400 AM CDT Sat Oct 10 2020 ...DELTA CONTINUES MOVING INLAND... ...HEAVY RAINS AND TROPICAL STORM FORCE WINDS CONTINUE NEAR ITS PATH... SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...31.8N 91.8W ABOUT 45 MI...70 KM SSE OF MONROE LOUISIANA MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...NNE OR 25 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...990 MB...29.24 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Storm Surge Warning has been discontinued from Cameron to Port Fourchon, Louisiana, including Vermilion Bay. The Tropical Storm Warning along the coast from High Island Texas to the mouth of the Pearl River, including New Orleans, Lake Pontchartrain and Lake Maurepas has been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: No coastal watches and warnings are in effect. 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 400 AM CDT (0900 UTC), the center of Tropical Storm Delta was located near latitude 31.8 North, longitude 91.8 West. Delta is moving toward the north-northeast near 16 mph (26 km/h). A motion toward the northeast is expected to begin later today and continue through Sunday night. On the forecast track, the center of Delta should move across northeastern Louisiana this morning and then across northern Mississippi and into the Tennessee Valley later today and Sunday. Maximum sustained winds have decreased to near 45 mph (75 km/h) with higher gusts. Additional weakening is forecast, and Delta is expected to become a tropical depression later today. Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center. A sustained wind of 39 mph (63 km/h) with a gust to 63 mph (102 km/h) was recently reported in Alexandria, Louisiana. A sustained wind of 37 mph (59 mph) with a gust to 63 mph (102 km/h) was recently observed in Monroe, Louisiana. The estimated minimum central pressure based on surface observations is 990 mb (29.24 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Delta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1, WMO header WTNT41 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT1.shtml. STORM SURGE: Water levels will continue to subside today along the Louisiana coast. Consult products issued by your local National Weather Service forecast office for additional information. RAINFALL: For northern Louisiana, southeast Arkansas, and western Mississippi, Delta is expected to produce an additional 2 to 5 inches of rain, with isolated storm totals of 10 inches. These rainfall amounts will lead to flash, urban, small stream, and minor river flooding. As the remnants of Delta move further inland, 1 to 3 inches of rain, with locally higher amounts, are expected in the Tennessee Valley and Mid Atlantic through the weekend. There is a potential for 3 to 6 inches in the Southern Appalachians, which could lead to flash, urban, small stream, along with isolated minor river flooding. TORNADOES: A few tornadoes are possible today and tonight across eastern Mississippi, Alabama, the Florida Panhandle, and western/central Georgia. SURF: Swells from Delta are gradually subsiding along the northern Gulf coast. Please consult products from your local weather office for additional information. NEXT ADVISORY ------------- Next intermediate advisory at 700 AM CDT. Next complete advisory at 1000 AM CDT. $$ Forecaster Cangialosi/Zelinsky
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Tropical Storm Delta Forecast Advisory Number 23
2020-10-10 10:35:26| National Hurricane Center (Atlantic)
Issued at 0900 UTC SAT OCT 10 2020 000 WTNT21 KNHC 100835 TCMAT1 TROPICAL STORM DELTA FORECAST/ADVISORY NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL AL262020 0900 UTC SAT OCT 10 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE STORM SURGE WARNING HAS BEEN DISCONTINUED FROM CAMERON TO PORT FOURCHON...LOUISIANA...INCLUDING VERMILION BAY. THE TROPICAL STORM WARNING ALONG THE COAST FROM HIGH ISLAND TEXAS TO THE MOUTH OF THE PEARL RIVER...INCLUDING NEW ORLEANS...LAKE PONTCHARTRAIN AND LAKE MAUREPAS HAS BEEN DISCONTINUED. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... NO COASTAL WATCHES AND WARNINGS ARE IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 31.8N 91.8W AT 10/0900Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 25 DEGREES AT 14 KT ESTIMATED MINIMUM CENTRAL PRESSURE 990 MB MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT. 34 KT....... 80NE 60SE 60SW 80NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 31.8N 91.8W AT 10/0900Z AT 10/0600Z CENTER WAS LOCATED NEAR 31.3N 92.2W FORECAST VALID 10/1800Z 33.2N 90.6W...INLAND MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 11/0600Z 34.4N 88.8W...INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 11/1800Z 36.0N 86.6W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 12/0600Z 38.2N 83.7W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 12/1800Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 31.8N 91.8W INTERMEDIATE PUBLIC ADVISORY...WTNT31 KNHC/MIATCPAT1...AT 10/1200Z NEXT ADVISORY AT 10/1500Z $$ FORECASTER CANGIALOSI
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