je.st
news
Tag: cyclone
Post-Tropical Cyclone HERMINE Graphics
2016-09-06 01:58:56| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Mon, 05 Sep 2016 23:58:56 GMT Wind Speed Probabilities last updated Mon, 05 Sep 2016 21:05:34 GMT
Tags: graphics
cyclone
posttropical
Summary for Post-Tropical Cyclone HERMINE (AT4/AL092016)
2016-09-06 01:56:26| National Hurricane Center (Atlantic)
...HERMINE EXPECTED TO BEGIN WEAKENING TONIGHT... As of 8:00 PM AST Mon Sep 5 the center of HERMINE was located near 39.3, -70.3 with movement WNW at 9 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 70 mph.
Tags: summary
cyclone
posttropical
Post-Tropical Cyclone HERMINE Public Advisory Number 34A
2016-09-06 01:56:26| National Hurricane Center (Atlantic)
Issued at 800 PM AST MON SEP 05 2016 000 WTNT34 KNHC 052356 TCPAT4 BULLETIN POST-TROPICAL CYCLONE HERMINE INTERMEDIATE ADVISORY NUMBER 34A NWS NATIONAL HURRICANE CENTER MIAMI FL AL092016 800 PM AST MON SEP 05 2016 ...HERMINE EXPECTED TO BEGIN WEAKENING TONIGHT... SUMMARY OF 800 PM AST...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...39.3N 70.3W ABOUT 150 MI...240 KM SE OF THE EASTERN TIP OF LONG ISLAND MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * The coast of Long Island from Fire Island Inlet to Port Jefferson Harbor * New Haven to Sagamore Beach * Block Island * Martha's Vineyard * Nantucket 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 48-HOUR OUTLOOK ------------------------------ At 800 PM AST (0000 UTC), the center of Post-Tropical Cyclone Hermine was located near latitude 39.3 North, longitude 70.3 West. The post-tropical cyclone is moving toward the west-northwest near 9 mph (15 km/h) and this general motion is expected to continue overnight, followed by a slow and erratic motion on Tuesday and Wednesday. On the forecast track, the center of Hermine will meander slowly offshore of the New England coast into Wednesday. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. A weakening trend is forecast to begin tonight. Tropical-storm-force winds extend outward up to 230 miles (370 km) from the center. Sustained winds of 32 mph (52 km/h) with gusts of 48 mph (78 km/h) have been observed in the last couple of hours at Nantucket, Massachusetts. The minimum central pressure measured by an Air Force reconnaissance aircraft is 997 mb (29.44 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions will continue to spread over portions of the warning area tonight and Tuesday. STORM SURGE: The combination of a storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. Along the immediate coastline, the surge will be accompanied by large and dangerous waves. The water could reach the following heights above ground if the peak surge occurs at the time of high tide... Coast of Long Island from Fire Island Inlet to Port Jefferson Harbor...1 to 2 feet RAINFALL: Hermine will produce total rain accumulations of 1 to 2 inches across eastern Massachusetts, including Cape Cod and the offshore islands, through Wednesday. SURF: Large waves generated by Hermine will affect the U.S. east coast from the mid-Atlantic states through New England. These waves are likely to cause life-threatening surf and rip current conditions, and significant beach erosion. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Landsea/Brown
Tags: number
public
advisory
cyclone
Post-Tropical Cyclone HERMINE Graphics
2016-09-05 23:09:33| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Mon, 05 Sep 2016 20:45:20 GMT Wind Speed Probabilities last updated Mon, 05 Sep 2016 21:05:34 GMT
Tags: graphics
cyclone
posttropical
Post-Tropical Cyclone HERMINE Forecast Discussion Number 34
2016-09-05 22:42:58| National Hurricane Center (Atlantic)
Issued at 500 PM AST MON SEP 05 2016 000 WTNT44 KNHC 052042 TCDAT4 POST-TROPICAL CYCLONE HERMINE DISCUSSION NUMBER 34 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092016 500 PM AST MON SEP 05 2016 The satellite presentation of Hermine remains non-tropical, with a rather linear band of deep convection situated north and northwest of the estimated center. There continues to be multiple low-level swirls over the inner part of the circulation. Overall, the appearance of the system is gradually losing organization. The advisory intensity remains at 60 kt based on earlier reconnaissance data and a ship report from this afternoon. The system is forecast to move over SSTs of 23 to 24 deg C on Tuesday and these cooler waters should cause weakening. The official intensity forecast is close to the model consensus and, although this guidance may not be very valid for a post-tropical cyclone, the NHC forecast is also consistent with the trends shown by the global models. Some of these models, such as the ECMWF suggest that the cyclone could dissipate within 72 hours. Earlier aircraft center fixes and a more recent satellite-derived fix result in a motion estimate of 300/6 kt. A weak mid-level ridge to the north of Hermine should maintain the west-northwestward motion overnight. After that, the ridge breaks down and the cyclone is expected to become trapped in a region of weak steering currents. This should result in a slow and erratic motion through 48 hours. By the end of the forecast period, if the cyclone survives, a faster east-northeastward motion could occur due to the influence of the mid-latitude westerlies. The official track forecast is a little to the west of the previous one but generally to the right of the latest dynamical model consensus. FORECAST POSITIONS AND MAX WINDS INIT 05/2100Z 39.3N 69.5W 60 KT 70 MPH...POST-TROPICAL 12H 06/0600Z 39.7N 70.6W 55 KT 65 MPH...POST-TROPICAL 24H 06/1800Z 39.9N 71.3W 50 KT 60 MPH...POST-TROPICAL 36H 07/0600Z 40.0N 71.5W 45 KT 50 MPH...POST-TROPICAL 48H 07/1800Z 40.3N 71.3W 35 KT 40 MPH...POST-TROPICAL 72H 08/1800Z 42.0N 69.0W 25 KT 30 MPH...POST-TROPICAL 96H 09/1800Z...DISSIPATED $$ Forecaster Pasch
Tags: number
discussion
forecast
cyclone
Sites : [360] [361] [362] [363] [364] [365] [366] [367] [368] [369] [370] [371] [372] [373] [374] [375] [376] [377] [378] [379] next »