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Tropical Storm Sally Forecast Advisory Number 7
2020-09-13 11:41:33| National Hurricane Center (Atlantic)
Issued at 0900 UTC SUN SEP 13 2020 000 WTNT24 KNHC 130940 CCA TCMAT4 TROPICAL STORM SALLY FORECAST/ADVISORY NUMBER 7...CORRECTED NWS NATIONAL HURRICANE CENTER MIAMI FL AL192020 0900 UTC SUN SEP 13 2020 CORRECTED FOR INLAND STATUS AT 60 AND 72 HOURS CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... A STORM SURGE WARNING HAS BEEN ISSUED FROM PORT FOURCHON LOUISIANA TO MISSISSIPPI/ALABAMA BORDER. A HURRICANE WARNING HAS BEEN ISSUED FROM GRAND ISLE LOUISIANA NORTHEAST TO OCEAN SPRINGS MISSISSIPPI...INCLUDING NEW ORLEANS...LAKE PONTCHARTRAIN AND LAKE MAUREPAS. A HURRICANE WATCH HAS BEEN ISSUED FROM EAST OF MORGAN CITY LOUISIANA TO WEST OF GRAND ISLE. A TROPICAL STORM WARNING HAS BEEN ISSUED FROM EAST OF OCEAN SPRINGS MISSISSIPPI TO INDIAN PASS FLORIDA. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A STORM SURGE WARNING IS IN EFFECT FOR... * PORT FOURCHON LOUISIANA TO THE MISSISSIPPI/ALABAMA BORDER * LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND LAKE BORGNE A HURRICANE WARNING IS IN EFFECT FOR... * GRAND ISLE LOUISIANA TO OCEAN SPRINGS MISSISSIPPI * LAKE PONTCHARTRAIN AND LAKE MAUREPAS INCLUDING METROPOLITAN NEW ORLEANS A STORM SURGE WATCH IS IN EFFECT FOR... * MISSISSIPPI/ALABAMA BORDER TO THE ALABAMA/FLORIDA BORDER A HURRICANE WATCH IS IN EFFECT FOR... * EAST OF OCEAN SPRINGS TO THE ALABAMA/FLORIDA BORDER A TROPICAL STORM WARNING IS IN EFFECT FOR... * EAST OF OCEAN SPRINGS TO INDIAN PASS A TROPICAL STORM WATCH IS IN EFFECT FOR... * INDIAN PASS TO OCHLOCKONEE RIVER FLORIDA A STORM SURGE WARNING MEANS THERE IS A DANGER OF LIFE-THREATENING INUNDATION...FROM RISING WATER MOVING INLAND FROM THE COASTLINE...DURING THE NEXT 36 HOURS 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. 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 HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A WARNING IS TYPICALLY ISSUED 36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. A STORM SURGE WATCH MEANS THERE IS A POSSIBILITY OF LIFE- THREATENING INUNDATION...FROM RISING WATER MOVING INLAND FROM THE COASTLINE...IN THE INDICATED LOCATIONS DURING THE NEXT 48 HOURS. FOR A DEPICTION OF AREAS AT RISK...PLEASE SEE THE NATIONAL WEATHER SERVICE STORM SURGE WATCH/WARNING GRAPHIC...AVAILABLE AT HURRICANES.GOV. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE WITHIN 12 TO 24 HOURS. TROPICAL STORM CENTER LOCATED NEAR 27.0N 84.0W AT 13/0900Z POSITION ACCURATE WITHIN 35 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT 11 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1001 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 50 KT. 34 KT....... 50NE 80SE 0SW 20NW. 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 27.0N 84.0W AT 13/0900Z AT 13/0600Z CENTER WAS LOCATED NEAR 26.7N 83.5W FORECAST VALID 13/1800Z 27.7N 85.4W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 30NE 0SE 0SW 0NW. 34 KT... 90NE 80SE 0SW 40NW. FORECAST VALID 14/0600Z 28.3N 87.2W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 40NE 20SE 0SW 20NW. 34 KT... 90NE 80SE 20SW 70NW. FORECAST VALID 14/1800Z 28.7N 88.7W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 20NE 10SE 10SW 15NW. 50 KT... 40NE 20SE 20SW 30NW. 34 KT...100NE 80SE 50SW 70NW. FORECAST VALID 15/0600Z 29.2N 89.7W MAX WIND 85 KT...GUSTS 105 KT. 64 KT... 20NE 10SE 10SW 20NW. 50 KT... 40NE 30SE 20SW 30NW. 34 KT...100NE 80SE 50SW 60NW. FORECAST VALID 15/1800Z 30.1N 90.0W...INLAND MAX WIND 70 KT...GUSTS 85 KT. 50 KT... 40NE 30SE 10SW 30NW. 34 KT... 60NE 90SE 30SW 40NW. FORECAST VALID 16/0600Z 31.0N 90.0W...INLAND MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 10NE 10SE 0SW 10NW. 34 KT... 30NE 60SE 30SW 20NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 17/0600Z 32.8N 88.6W...INLAND MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 18/0600Z 34.5N 84.5W...INLAND MAX WIND 20 KT...GUSTS 30 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 27.0N 84.0W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 13/1200Z NEXT ADVISORY AT 13/1500Z $$ FORECASTER BLAKE
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Tropical Storm Karina Forecast Discussion Number 2
2020-09-13 11:02:00| National Hurricane Center (East Pacific)
Issued at 300 AM MDT Sun Sep 13 2020 ZCZC MIATCDEP1 ALL TTAA00 KNHC DDHHMM Tropical Storm Karina Discussion Number 2 NWS National Hurricane Center Miami FL EP162020 300 AM MDT Sun Sep 13 2020 Recent scatterometer data showed an area of 30-35 kt winds within about 80 n mi of the center of Tropical Depression Sixteen-E in the southwestern quadrant. Based on this data, along with 35-40 kt intensity estimates from TAFB and the CIMSS satellite consensus, the depression is upgraded to Tropical Storm Karina with an initial intensity of 35 kt. Satellite imagery show that the system is still being affected by northeasterly vertical shear, with the low-level center exposed to the northeast of the main convective mass. The initial motion is now 310/10. The global models forecast a mid-level ridge to build westward to the north of Karina in a day or two, causing the cyclone to move west- northwestward. A more westward motion is expected near the end of the forecast period as a weakening Karin is steered more by the low-level trade winds. The track guidance is in fair agreement with this scenario, although there is some spread in the forward speed, possibly due differences in how Karina interacts with the larger ITCZ/monsoon trough circulation, including the remnants of Invest 91E. The new forecast track will follow the forward speed of the consensus models and has only minor adjustments from the previous track. The forecast track takes the center of Karin over cooler water, with the system crossing the 25-26C isotherms in 48-72 h. Present indications are that the shear will decrease a little before the 72 h point, so the intensity forecast calls for gradual strengthening during that time. After 72 h, the cooler water and dry air entrainment should cause weakening. The new intensity forecast has some minor adjustments from the previous forecast, and it is in best agreement with the HCCA corrected consensus model and the Florida State Superensemble. FORECAST POSITIONS AND MAX WINDS INIT 13/0900Z 17.4N 113.8W 35 KT 40 MPH 12H 13/1800Z 18.1N 114.8W 40 KT 45 MPH 24H 14/0600Z 18.8N 116.4W 45 KT 50 MPH 36H 14/1800Z 19.4N 118.0W 50 KT 60 MPH 48H 15/0600Z 19.9N 119.4W 55 KT 65 MPH 60H 15/1800Z 20.5N 120.7W 55 KT 65 MPH 72H 16/0600Z 21.2N 122.0W 55 KT 65 MPH 96H 17/0600Z 22.0N 124.5W 45 KT 50 MPH 120H 18/0600Z 22.0N 127.0W 30 KT 35 MPH $$ Forecaster Beven NNNN
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Tropical Storm Karina Public Advisory Number 2
2020-09-13 11:01:24| National Hurricane Center (East Pacific)
Issued at 300 AM MDT Sun Sep 13 2020 ZCZC MIATCPEP1 ALL TTAA00 KNHC DDHHMM BULLETIN Tropical Storm Karina Advisory Number 2 NWS National Hurricane Center Miami FL EP162020 300 AM MDT Sun Sep 13 2020 ...TROPICAL DEPRESSION BECOMES TROPICAL STORM KARINA... SUMMARY OF 300 AM MDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...17.4N 113.8W ABOUT 455 MI...735 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 300 AM MDT (0900 UTC), the center of Tropical Storm Karina was located near latitude 17.4 North, longitude 113.8 West. Karina is moving toward the northwest near 12 mph (19 km/h), and a west-northwest or northwest motion is expected for the next few days. Maximum sustained winds have increased to near 40 mph (65 km/h) with higher gusts. Additional gradual strengthening is expected during the next couple of days. Tropical-storm-force winds extend outward up to 90 miles (150 km) to the southwest of the center. The estimated minimum central pressure is 1003 mb (29.62 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 900 AM MDT. $$ Forecaster Beven NNNN
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Tropical Storm Karina Forecast Advisory Number 2
2020-09-13 11:00:54| National Hurricane Center (East Pacific)
Issued at 0900 UTC SUN SEP 13 2020 ZCZC MIATCMEP1 ALL TTAA00 KNHC DDHHMM TROPICAL STORM KARINA FORECAST/ADVISORY NUMBER 2 NWS NATIONAL HURRICANE CENTER MIAMI FL EP162020 0900 UTC SUN SEP 13 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 17.4N 113.8W AT 13/0900Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT 10 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 0NE 0SE 80SW 0NW. 12 FT SEAS.. 0NE 120SE 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 17.4N 113.8W AT 13/0900Z AT 13/0600Z CENTER WAS LOCATED NEAR 17.1N 113.3W FORECAST VALID 13/1800Z 18.1N 114.8W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 20NE 60SE 80SW 20NW. FORECAST VALID 14/0600Z 18.8N 116.4W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 70NE 90SE 90SW 40NW. FORECAST VALID 14/1800Z 19.4N 118.0W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 30NE 0SE 0SW 0NW. 34 KT... 80NE 90SE 90SW 60NW. FORECAST VALID 15/0600Z 19.9N 119.4W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 40NE 30SE 20SW 30NW. 34 KT... 90NE 80SE 80SW 70NW. FORECAST VALID 15/1800Z 20.5N 120.7W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 40NE 30SE 20SW 30NW. 34 KT... 90NE 70SE 60SW 80NW. FORECAST VALID 16/0600Z 21.2N 122.0W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 40NE 30SE 20SW 30NW. 34 KT... 90NE 70SE 60SW 80NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM ON DAY 4 AND 150 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 17/0600Z 22.0N 124.5W MAX WIND 45 KT...GUSTS 55 KT. OUTLOOK VALID 18/0600Z 22.0N 127.0W MAX WIND 30 KT...GUSTS 40 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.4N 113.8W NEXT ADVISORY AT 13/1500Z $$ FORECASTER BEVEN NNNN
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Tropical Depression Rene Forecast Discussion Number 25
2020-09-13 10:59:01| National Hurricane Center (Atlantic)
Issued at 500 AM AST Sun Sep 13 2020 404 WTNT43 KNHC 130858 TCDAT3 Tropical Depression Rene Discussion Number 25 NWS National Hurricane Center Miami FL AL182020 500 AM AST Sun Sep 13 2020 Rene is producing a round of disorganized convection at this time, with the convection now displaced to the east of the center by increasing west-northwesterly vertical shear. The initial intensity remains 25 kt based on a combination of satellite intensity estimates and continuity from the previous advisory. The strong shear and a dry environment should lead to Rene degenerating to a remnant low pressure area between 24-36 h, with the global models in good agreement that the remnant low should weaken to a trough by 72 h. The new intensity forecast is unchanged from the previous forecast. The initial motion is 325/12. A blocking ridge of high pressure is forecast to build to the northwest or Rene during the next day or two, causing the cyclone to slow down and then turn westward. After that time, a west-southwestward motion is expected as Rene or its remnants are steered by a combination of the ridge and the circulation of Tropical Depression 20 to the southeast. There is little change to either the track guidance or the forecast track from the previous advisory. FORECAST POSITIONS AND MAX WINDS INIT 13/0900Z 26.2N 47.1W 25 KT 30 MPH 12H 13/1800Z 27.2N 47.9W 25 KT 30 MPH 24H 14/0600Z 27.7N 48.5W 25 KT 30 MPH 36H 14/1800Z 27.6N 49.1W 20 KT 25 MPH...POST-TROP/REMNT LOW 48H 15/0600Z 27.2N 50.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 60H 15/1800Z 26.7N 51.1W 20 KT 25 MPH...POST-TROP/REMNT LOW 72H 16/0600Z...DISSIPATED $$ Forecaster Beven
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