je.st
news
Tag: helene
Hurricane Helene Forecast Advisory Number 11
2018-09-10 04:37:20| National Hurricane Center (Atlantic)
Issued at 0300 UTC MON SEP 10 2018 428 WTNT23 KNHC 100237 TCMAT3 HURRICANE HELENE FORECAST/ADVISORY NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082018 0300 UTC MON SEP 10 2018 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 13.9N 27.2W AT 10/0300Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 11 KT ESTIMATED MINIMUM CENTRAL PRESSURE 984 MB MAX SUSTAINED WINDS 75 KT WITH GUSTS TO 90 KT. 64 KT....... 20NE 15SE 0SW 20NW. 50 KT....... 40NE 30SE 0SW 40NW. 34 KT....... 80NE 60SE 30SW 70NW. 12 FT SEAS..120NE 180SE 120SW 90NW. 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 13.9N 27.2W AT 10/0300Z AT 10/0000Z CENTER WAS LOCATED NEAR 13.7N 26.6W FORECAST VALID 10/1200Z 14.4N 29.2W MAX WIND 85 KT...GUSTS 105 KT. 64 KT... 30NE 20SE 0SW 30NW. 50 KT... 50NE 40SE 20SW 50NW. 34 KT... 90NE 60SE 40SW 90NW. FORECAST VALID 11/0000Z 15.1N 31.8W MAX WIND 90 KT...GUSTS 110 KT. 64 KT... 30NE 20SE 0SW 30NW. 50 KT... 50NE 40SE 20SW 50NW. 34 KT...100NE 60SE 50SW 90NW. FORECAST VALID 11/1200Z 15.7N 34.2W MAX WIND 90 KT...GUSTS 110 KT. 64 KT... 30NE 20SE 10SW 30NW. 50 KT... 60NE 40SE 30SW 60NW. 34 KT...120NE 80SE 70SW 120NW. FORECAST VALID 12/0000Z 16.4N 36.1W MAX WIND 85 KT...GUSTS 105 KT. 64 KT... 25NE 20SE 10SW 25NW. 50 KT... 50NE 40SE 30SW 50NW. 34 KT...110NE 70SE 70SW 100NW. FORECAST VALID 13/0000Z 19.0N 38.7W MAX WIND 70 KT...GUSTS 85 KT. 50 KT... 50NE 40SE 30SW 50NW. 34 KT...110NE 70SE 70SW 100NW. 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 14/0000Z 23.5N 40.5W MAX WIND 60 KT...GUSTS 75 KT. OUTLOOK VALID 15/0000Z 29.6N 41.2W MAX WIND 55 KT...GUSTS 65 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.9N 27.2W NEXT ADVISORY AT 10/0900Z $$ FORECASTER CANGIALOSI
Tags: number
advisory
forecast
hurricane
Hurricane Helene Graphics
2018-09-09 22:35:52| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Sun, 09 Sep 2018 20:35:52 GMT Wind Speed Probabilities last updated Sun, 09 Sep 2018 21:28:30 GMT
Tags: graphics
hurricane
hurricane graphics
graphics hurricane
Hurricane Helene Forecast Discussion Number 10
2018-09-09 22:32:48| National Hurricane Center (Atlantic)
Issued at 500 PM AST Sun Sep 09 2018 354 WTNT43 KNHC 092032 TCDAT3 Hurricane Helene Discussion Number 10 NWS National Hurricane Center Miami FL AL082018 500 PM AST Sun Sep 09 2018 Deep convection has increased in coverage and intensity over the southern portion of the circulation, and microwave imagery suggests that an inner core is beginning to develop. Helene's maximum winds are boosted to hurricane strength, 65 kt, based on Dvorak Current Intensity numbers from SAB and TAFB. The cyclone should continue to traverse warm waters and be in a low-shear environment for the next couple of days. Therefore, additional intensification is called for during the next 48 hours. Afterwards, increasing south-southwesterly shear should cause gradual weakening. The official intensity forecast is close to the model consensus, IVCN. Helene is moving just north of due west, or 280/11 kt. There are no significant changes to the track forecast philosophy for this advisory. Helene should move generally west-northwestward along the south side of a weak mid-level ridge for the next couple of days. After that, a mid-level trough digging along 40W-45W longitude should induce a turn toward the northwest and eventually north. The official track forecast is very similar to the one from the previous cycle through 72 hours, and is nudged a little to the east after that time. This is fairly close to the latest corrected consensus guidance, HCCA. FORECAST POSITIONS AND MAX WINDS INIT 09/2100Z 13.4N 26.0W 65 KT 75 MPH 12H 10/0600Z 13.9N 28.1W 75 KT 85 MPH 24H 10/1800Z 14.5N 30.8W 85 KT 100 MPH 36H 11/0600Z 15.2N 33.3W 90 KT 105 MPH 48H 11/1800Z 15.9N 35.5W 90 KT 105 MPH 72H 12/1800Z 18.0N 38.6W 80 KT 90 MPH 96H 13/1800Z 21.5N 40.5W 65 KT 75 MPH 120H 14/1800Z 27.5N 41.5W 55 KT 65 MPH $$ Forecaster Pasch
Tags: number
discussion
forecast
hurricane
Summary for Hurricane Helene (AT3/AL082018)
2018-09-09 22:32:16| National Hurricane Center (Atlantic)
...HELENE BECOMES A HURRICANE SOUTHWEST OF THE CABO VERDE ISLANDS... As of 5:00 PM AST Sun Sep 9 the center of Helene was located near 13.4, -26.0 with movement W at 13 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 75 mph.
Tags: summary
hurricane
helene
Hurricane Helene Public Advisory Number 10
2018-09-09 22:32:16| National Hurricane Center (Atlantic)
Issued at 500 PM AST Sun Sep 09 2018 974 WTNT33 KNHC 092032 TCPAT3 BULLETIN Hurricane Helene Advisory Number 10 NWS National Hurricane Center Miami FL AL082018 500 PM AST Sun Sep 09 2018 ...HELENE BECOMES A HURRICANE SOUTHWEST OF THE CABO VERDE ISLANDS... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...13.4N 26.0W ABOUT 145 MI...230 KM SW OF THE SOUTHERNMOST CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...992 MB...29.30 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of the Cabo Verde Islands has discontinued the Hurricane Watch and Tropical Storm Warning for the Cabo Verde islands of Santiago, Fogo, and Brava. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Hurricane Helene was located near latitude 13.4 North, longitude 26.0 West. Helene is moving toward the west near 13 mph (20 km/h), and a turn toward the west-northwest is expected on Monday, with a continued west-northwestward motion through Tuesday. On the forecast track, the center of Helene will continue to move away from the Cabo Verde Islands. Maximum sustained winds have increased to near 75 mph (120 km/h) with higher gusts. Additional strengthening is forecast during the next 48 hours. Hurricane-force winds extend outward up to 15 miles (30 km) from the center and tropical-storm-force winds extend outward up to 80 miles (130 km). The estimated minimum central pressure is 992 mb (29.30 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Helene is expected to produce total rain accumulations of 2 to 4 inches over the southern Cabo Verde Islands through today, with isolated maximum amounts of 6 inches. This rainfall may produce life-threatening flash floods. NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Pasch
Tags: number
public
advisory
hurricane
Sites : [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] next »