...A HURRICANE WARNING IS IN EFFECT FOR ST. MAARTEN...
DATE ISSUED: Tuesday, September 05, 2017 TIME ISSUED: 11:00 PM
...POTENTIALLY CATASTROPHIC CATEGORY 5 HURRICANE IRMA GETTING VERY CLOSE TO THE NORTHERN LEEWARD ISLANDS...
..WEATHER CONDITIONS ARE DETERIORATING OVER THE LEEWARD ISLANDS...
Location: Lat. 17.4N ....Lon. 61.1W
About: 138 miles SE of St. Maarten
Maximum sustained winds: 185 mph ....295 KM/H
Present Movement: WNW or...285 degrees at 15 mph...24 KM/H Minimum Central Pressure: 916 mb....27.05 inches
DISCUSSION AND 24-HOUR OUTLOOK
AT 11:00 PM...THE EYE OF HURRICANE IRMA WAS LOCATED NEAR LATITUDE 17.4 NORTH...LONGITUDE 61.1 WEST OR ABOUT 138 MILES SOUTHEAST OF ST. MAARTEN.
IRMA IS MOVING TOWARD THE WEST NORTHWEST NEAR 15 MPH (24 KM/H). THIS MOTION IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF DAYS.
ON THE FORECAST TRACK, THE CENTER OF IRMA WILL MOVE EXTREMELY CLOSE TO ST. MAARTEN SOMETIME ON WEDNESDAY MORNING. HOWEVER STORM CONDITIONS WILL BEGIN TONIGHT.
MAXIMUM SUSTAINNED WINDS ARE NEAR 185 MPH...295 KM/H...WITH HIGHER GUSTS.
IRMA IS AN EXTREMELY DANGEROUS CATEGORY 5 HURRICANE.
SOME FLUCTIONS IN INTENSITY ARE LIKELY DURING THE NEXT DAY OR TWO, BUT IRMA IS FORECAST TO REMAIN A POWERFUL CATEGORY 4 OR 5 HURRICANE.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 50 MILES (85KM) FROM THE CENTER AND TROPICAL STORM FORCE WINDS EXTEND UP TO 175 MILES (280KM) FROM THE CENTER.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 916 MB...27.05 INCHES. HAZARDS AFFECTING LAND AND SEA
Hurricane conditions are expected in St. Maarten by later TONIGHT into tomorrow, however Tropical storm force winds are expected with the next few hours.
RAINFALL: Irma is expected to produce total rainfall accumulations of 8-12 inches with isolated maximum amounts of 18 inches across the Leeward Islands.
STORM SURGE: The combination of a dangerous storm surge and large breaking waves will raise water levels by as much as 7 to 11 feet above normal tide levels along the coasts of St Maarten. Near the coast, the surge will be accompanied by large and destructive waves.