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Hurricane Season - 2008


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Well, done kilt the mosquitos (about 10 billion....) so here's the latest on Gustav. All kidding aside this is a very dangerous storm. It will be well over 120 MPH when it gets into the Gulf.

WTNT42 KNHC 262040
TCDAT2
HURRICANE GUSTAV DISCUSSION NUMBER 7
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL072008
500 PM EDT TUE AUG 26 2008

AIR FORCE HURRICANE HUNTER REPORTS AND VISIBLE SATELLITE IMAGES...ON WHICH THE EYE OF THE HURRICANE BECAME EVIDENT...INDICATE THAT THE CENTER OF GUSTAV MADE LANDFALL AROUND 1730 UTC. A MINIMUM PRESSURE OF 992 MB WAS REPORTED BY THE AIRCRAFT JUST AS THE CENTER MOVED INLAND...HOWEVER A DROPSONDE RELEASED JUST EAST OF THE EYE HAD A SURFACE PRESSURE OF 997 MB WITH SOUTHERLY WINDS OF 64 KT. SO THE CENTRAL PRESSURE MAY HAVE BEEN SOMEWHAT LOWER THAN 992 MB. IN ANY EVENT...NOW THAT THE CENTER IS MOVING OVER THE MOUNTAINOUS TERRAIN OF THE SOUTHWEST PENINSULA OF HAITI...GUSTAV IS LIKELY LOSING STRENGTH. THE EYE IS NO LONGER EVIDENT ON SATELLITE IMAGES...AND THE SYSTEM COULD WEAKEN BELOW HURRICANE INTENSITY TONIGHT. HOWEVER THE UPPER-LEVEL ENVIRONMENT REMAINS FAVORABLE FOR INTENSIFICATION WITH ONLY A LITTLE NORTH-NORTHEASTERLY SHEAR...AND THEREFORE GUSTAV IS LIKELY TO REGAIN STRENGTH AS IT APPROACHES THE WINDWARD PASSAGE AND EASTERN CUBA TOMORROW. THE OFFICIAL INTENSITY FORECAST IS A BLEND OF THE SHIPS...LGEM...HWRF...AND GFDL GUIDANCE AND IS VERY SIMILAR TO THE PREVIOUS NHC WIND SPEED FORECAST. IT SHOULD BE RECALLED THAT BOTH SUBJECTIVE AND MODEL FORECASTS OF INTENSITY HAVE LITTLE SKILL IN THE 3- TO 5-DAY RANGE.

INITIAL MOTION IS AROUND 305/9. THE MAIN PLAYER IN THE STEERING PATTERN FOR GUSTAV CONTINUES TO BE A MID-TROPOSPHERIC ANTICYCLONE/HIGH CENTERED NEAR THE FLORIDA PENINSULA. THE TROPICAL
CYCLONE'S HEADING SHOULD GRADUALLY BEND TOWARD THE LEFT AS IT MOVES ALONG THE SOUTHERN PERIPHERY OF THIS ANTICYCLONE.
LATER IN THE FORECAST PERIOD...GUSTAV IS EXPECTED TO TURN TOWARD THE NORTHWEST AS IT ROUNDS THE SOUTHWESTERN PERIPHERY OF THE HIGH. THE TRACK
GUIDANCE MODELS ARE IN PRETTY GOOD AGREEMENT ON A GRADUAL TURN TOWARD THE WEST-NORTHWEST OVER THE NEXT DAY OR SO...AND OVERALL THE MODEL CONSENSUS HAS CHANGED LITTLE FROM THE PREVIOUS ADVISORY PACKAGE. THEREFORE THE TRACK FORECAST FOR THIS ADVISORY IS ESSENTIALLY AN EXTENSION OF THE PREVIOUS ONE.

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Really starting to fire-up!

Well now, came home Friday after a blustery,squally ride to Perry, Florida. Several trees down of all sizes. Got home just at dark to a tree down blocking my street entrance and no power. To bed and wakeup to more weather. got in car and left Gadsden County for Wakulla County to p/u GF, and then on to Mexico Beach to nurse my GF's arm, broken from a car accident a little over 1 month ago. On to Mexico Beach where the waves were surfer-like and checked into our favorite on the gulf motel. Place was deserted, somewhat. Sun came out briefly and Sunday waves had calmed. Neighbor said power back on after 24 hours plus. Last two days local rivers, streams swelling over bridges, roadways with trees continuing to fall.

Did hear that worker had lost life from a falling tree.

Enter Gustav!

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GUSTAV IS MOVING TOWARD THE WEST-NORTHWEST NEAR 8 MPH...13 KM/HR. A
TURN TOWARD THE WEST IS EXPECTED ON WEDNESDAY...WITH A RETURN TO
GENERAL WEST-NORTHWESTWARD MOTION FORECAST TO OCCUR ON THURSDAY.
ON THE FORECAST TRACK...GUSTAV SHOULD PASS BETWEEN JAMAICA AND THE
SOUTHEASTERN COAST OF CUBA ON WEDNESDAY AND THURSDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 70 MPH...110 KM/HR...WITH HIGHER
GUSTS. GUSTAV IS MOVING BACK OVER WATER AND IS EXPECTED TO REGAIN
HURRICANE STRENGTH ON WEDNESDAY ONCE IT CLEARS THE SOUTHWESTERN
PENINSULA OF HAITI. MORE SIGNIFICANT STRENGTHENING IS FORECAST ON
THURSDAY AND GUSTAV COULD BECOME A CATEGORY 2 HURRICANE WHEN IT
PASSES BETWEEN CUBA AND JAMAICA.

Monday could be an interesting day. The 5 day forecast is a bit aways, but Monday, Labour Day, could be interesting. It depends on where Gustov bends or breaks, New Orleans, either 50 miles east or west looks good right now. Mind you this is six days away with a margin for error. Hopefully it stays as a catergory 2, which is the current projection.

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Yes..... Monday could be an "interesting day"... In any event, the mountains tore Gustav up a little, but only temporarily. Here's the NHC outlook for this morning.

WTNT42 KNHC 270843
TCDAT2
TROPICAL STORM GUSTAV DISCUSSION NUMBER 9
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL072008
500 AM EDT WED AUG 27 2008

GUSTAV HAS BEEN HUGGING THE NORTH COAST OF SOUTHWESTERN HAITI THIS MORNING WITH STRONG BANDS OF THUNDERSTORMS TO THE EAST AND SOUTH OF THE CENTER. AN AIR FORCE RESERVE RECONNAISSANCE PLANE FOUND A MINIMUM PRESSURE OF 998 MB AND RELIABLE SFMR WINDS OF 45-50 KT. THE INITIAL INTENSITY WILL BE SET AT 50 KT. LITTLE INTENSIFICATION IS FORESEEN UNTIL THE CENTER MOVES FARTHER AWAY FROM THE HIGH TERRAIN OF HAITI. THEREAFTER...A STEADY INCREASE IN STRENGTH IS LIKELY... ESPECIALLY AFTER THE CENTER MOVES INTO THE MORE OPEN WATERS NORTHWEST OF JAMAICA. VERTICAL SHEAR IS FORECAST TO BE LIGHT...AND COMBINED WITH THE DEEP WARM WATERS...RAPID INTENSIFICATION COULD OCCUR IN A COUPLE OF DAYS WHILE THE CENTER IS NEAR OR SOUTH OF WESTERN CUBA. THE OFFICIAL FORECAST IS REDUCED FROM EARLIER DUE TO THE INITIAL WEAKENING BUT STILL SHOWS THE STORM BECOMING A MAJOR HURRICANE IN THE NORTHWESTERN CARIBBEAN SEA. IN THE LONGER-TERM... THE GLOBAL MODELS HAVE A VARIETY OF UPPER-WIND PATTERNS...BUT IN GENERAL THE UPPER WINDS APPEAR TO BE FAVORABLE ENOUGH TO SUPPORT A MAJOR HURRICANE IN THE GULF OF MEXICO. IT SHOULD BE NOTED THAT BOTH THE GFDL AND HWRF ARE MORE AGGRESSIVE THAN THE OFFICIAL FORECAST.

THE STORM HAS NOT BEEN MOVING MUCH RECENTLY BUT AN AVERAGED OVER THE PAST TWELVE HOURS YIELDS AN ESTIMATE OF 300/4. A TURN TOWARD THE WEST IS LIKELY TODAY AS THE STORM BUMPS INTO A LARGE HIGH PRESSURE RIDGE OVER THE BAHAMAS AND FLORIDA. GUSTAV SHOULD THEN BE STEERED AROUND THE SOUTHERN PERIPHERY OF THE HIGH FOR THE NEXT SEVERAL DAYS AND TURN NORTHWESTWARD IN THE GULF OF MEXICO. THE OFFICIAL FORECAST IS VERY CLOSE THE PREVIOUS ONE AND IS JUST TO THE LEFT OF THE MODEL CONSENSUS. THE GFS IS AN EXTREME OUTLIER EARLY ON...TAKING THE STORM NEAR THE NORTH COAST OF CUBA...WHICH IS CONSIDERED VERY UNLIKELY AT THIS TIME.

FORECAST POSITIONS AND MAX WINDS

INITIAL 27/0900Z 18.6N 73.5W 50 KT
12HR VT 27/1800Z 19.0N 74.3W 50 KT
24HR VT 28/0600Z 19.1N 75.6W 60 KT
36HR VT 28/1800Z 19.2N 77.2W 70 KT
48HR VT 29/0600Z 19.6N 78.8W 80 KT
72HR VT 30/0600Z 21.0N 82.5W 100 KT
96HR VT 31/0600Z 23.5N 86.0W 105 KT
120HR VT 01/0600Z 27.0N 89.5W 105 KT

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Meanwhile..... back in the Atlantic.... There are two more areas of "interest" that bear some watching.

ZCZC MIATWOAT ALL
TTAA00 KNHC DDHHMM
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
800 AM EDT WED AUG 27 2008

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

1. A BROAD AREA OF LOW PRESSURE CENTERED SEVERAL HUNDRED MILES NORTHEAST OF THE NORTHERN LEEWARD ISLANDS IS PRODUCING DISORGANIZED SHOWERS AND THUNDERSTORMS. UPPER-LEVEL WINDS ARE FORECAST TO GRADUALLY BECOME MORE CONDUCIVE FOR DEVELOPMENT OF THIS SYSTEM DURING THE NEXT COUPLE OF DAYS AS IT MOVES SLOWLY NORTHWESTWARD.

2. A LARGE TROPICAL WAVE LOCATED OVER THE FAR EASTERN ATLANTIC SEVERAL HUNDRED MILES WEST-SOUTHWEST OF THE CAPE VERDE ISLANDS IS PRODUCING LIMITED AND DISORGANIZED SHOWER AND THUNDERSTORM ACTIVITY. THIS SYSTEM HAS SOME POTENTIAL FOR SLOW DEVELOPMENT DURING THE NEXT
COUPLE OF DAYS AS IT MOVES GENERALLY WESTWARD AT 10 TO 15 MPH
.

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