Saturday, September 08, 2007

Gabrielle Now Tropical (Advisory #4)

Air recon has found tropical characteristics in Gabrielle, and so it is now classed a tropical storm.

000
WTNT32 KNHC 082046
TCPAT2
BULLETIN
TROPICAL STORM GABRIELLE ADVISORY NUMBER 4
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL072007
500 PM EDT SAT SEP 08 2007

...GABRIELLE BECOMES TROPICAL...STILL FORECAST TO STRENGTHEN AS IT APPROACHES NORTH CAROLINA...

AT 5 PM EDT...2100Z...THE TROPICAL STORM WATCH FOR A PORTION OF THE
COAST OF NORTH CAROLINA FROM SOUTH OF SURF CITY SOUTHWARD TO CAPE FEAR HAS BEEN DISCONTINUED.

A TROPICAL STORM WARNING REMAINS IN EFFECT FROM SURF CITY NORTH CAROLINA NORTHWARD TO THE NORTH CAROLINA/VIRGINIA BORDER... INCLUDING THE PAMLICO AND ALBEMARLE SOUNDS. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS.

A TROPICAL STORM WATCH REMAINS IN EFFECT FOR PORTIONS OF SOUTHEASTERN VIRGINIA FROM NORTH OF THE NORTH CAROLINA/VIRGINIA BORDER NORTHWARD TO CAPE CHARLES LIGHT ON THE ATLANTIC COAST AND TO NEW POINT COMFORT ALONG CHESAPEAKE BAY. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE.

AT 500 PM EDT...2100Z...THE CENTER OF TROPICAL STORM GABRIELLE WAS LOCATED NEAR LATITUDE 32.4 NORTH...LONGITUDE 74.7 WEST OR ABOUT 185 MILES...300 KM...SOUTHEAST OF CAPE LOOKOUT NORTH CAROLINA.

GABRIELLE IS MOVING TOWARD THE NORTHWEST NEAR 8 MPH...13 KM/HR. A GRADUAL TURN TOWARD THE NORTH IS FORECAST DURING THE NEXT 24 HOURS. ON THIS TRACK...THE CENTER OF GABRIELLE WILL BE NEAR OR OVER THE COAST OF NORTH CAROLINA TOMORROW AFTERNOON...BUT OUTER RAIN BANDS WILL LIKELY REACH THE COAST TONIGHT.

REPORTS FROM AN AIR FORCE RECONNAISSANCE AIRCRAFT INDICATE THAT MAXIMUM SUSTAINED WINDS HAVE DECREASED AND ARE NOW NEAR 40 MPH...65 KM/HR...WITH HIGHER GUSTS. HOWEVER...SLIGHT STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 105 MILES...165 KM...TO THE NORTH FROM THE CENTER.

THE MINIMUM CENTRAL PRESSURE REPORTED BY THE RECONNAISSANCE AIRCRAFT WAS 1009 MB...29.80 INCHES.

COASTAL STORM SURGE FLOODING OF 2 TO 3 FEET IS POSSIBLE WITHIN THE WARNING AREA AS GABRIELLE PASSES NEAR OR OVER THE COAST.

GABRIELLE IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS OF 1 TO 3 INCHES ACROSS COASTAL SECTIONS OF NORTH CAROLINA...WITH ISOLATED MAXIMUM AMOUNTS OF 5 INCHES.

REPEATING THE 500 PM EDT POSITION...32.4 N...74.7 W. MOVEMENT TOWARD...NORTHWEST NEAR 8 MPH. MAXIMUM SUSTAINED WINDS...40 MPH. MINIMUM CENTRAL PRESSURE...1009 MB.

AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 800 PM EDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 1100 PM EDT.

$$
FORECASTER KNABB