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Jeanne Watch Thread


DurableTear

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11AM is out..

Jeanne has slowed big time, which is bad..gives the weakness Ivan forces in which would have took Jeanne to the Carolinas a possible time to rebuild..but I don't know what I'm talking about..just repeating what I've heard :)

The weakness down to a TS again comes from land/mountains, and then comes back to a cat 2.

 

 

 

5day is here: http://maps.wunderground.com/data/images/at200411_5day.gif

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000

WTNT31 KNHC 161440

TCPAT1

BULLETIN

HURRICANE JEANNE ADVISORY NUMBER 12

NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL

11 AM AST THU SEP 16 2004

 

...HURRICANE WARNING ISSUED FOR SOUTHEASTERN BAHAMAS AS JEANNE

SCRAPES THE NORTHERN COAST OF THE DOMINICAN REPUBLIC...

 

AT 11 AM AST...1500Z...THE GOVERNMENT OF THE BAHAMAS HAS ISSUED A

HURRICANE WARNING FOR THE SOUTHEASTERN BAHAMAS...INCLUDING THE

ACKLINS...CROOKED ISLAND...THE INAGUAS...MAYAGUANA...AND THE RAGGED

ISLANDS...AS WELL AS FOR THE TURKS AND CAICOS ISLANDS.

 

AT 11 AM AST...THE GOVERNMENT OF THE BAHAMAS HAS ALSO ISSUED A

HURRICANE WATCH FOR THE CENTRAL BAHAMAS...INCLUDING CAT

ISLAND...THE EXUMAS...LONG ISLAND...RUM CAY...AND SAN SALVADOR.

 

A HURRICANE WARNING REMAINS IN EFFECT IN THE DOMINICAN REPUBLIC FROM

PUERTO PLATA TO ISLA SAONA.

 

AT 11 AM AST...A TROPICAL STORM WARNING IS ISSUED FOR THE NORTH

COAST OF HAITI FROM LE MOLE ST NICHOLAS EASTWARD. A TROPICAL STORM

WARNING IS NOW IN EFFECT ALONG THE NORTH COAST OF HISPANIOLA FROM

LE MOLE ST NICHOLAS TO WEST OF PUERTO PLATA...AND FROM ISLA SAONA

TO SANTO DOMINGO.

 

A HURRICANE WATCH REMAINS IN EFFECT ALONG THE NORTHERN COAST OF THE

DOMINICAN REPUBLIC FROM WEST OF PUERTO PLATA WESTWARD TO MONTE

CRISTO AND ALONG THE SOUTHERN COAST OF THE DOMINICAN REPUBLIC FROM

ISLA SAONA WESTWARD TO SANTO DOMINGO.

 

INTERESTS IN THE NORTHWESTERN BAHAMAS SHOULD MONITOR THE PROGRESS OF

JEANNE.

 

AT 11 AM AST...1500Z...THE CENTER OF HURRICANE JEANNE WAS LOCATED

NEAR LATITUDE 18.8 NORTH...LONGITUDE 68.7 WEST OR ABOUT 80 MILES...

130 KM...EAST-NORTHEAST OF SANTO DOMINGO IN THE DOMINICAN REPUBLIC.

 

JEANNE IS MOVING JUST NORTH OF DUE WEST NEAR 7 MPH

...11 KM/HR. A WEST-NORTHWESTWARD MOTION IS EXPECTED OVER THE NEXT

24 HOURS. ON THE FORECAST TRACK...THE CENTER OF JEANNE IS EXPECTED

TO REMAIN NEAR OR JUST INLAND OF THE NORTHERN COAST OF THE

DOMINICAN REPUBLIC FOR MUCH OF THE NEXT 24 HOURS.

 

MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER

GUSTS. JEAN IS EXPECTED TO WEAKEN TO A TROPICAL STORM DURING THE

NEXT 24 HOURS AS A RESULT OF ITS ENCOUNTER WITH HISPANIOLA...BUT

SHOULD REGAIN HURRICANE STRENGTH ON FRIDAY.

 

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 15 MILES... 30 KM...

FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP

TO 70 MILES...110 KM.

 

ESTIMATED MINIMUM CENTRAL PRESSURE IS 986 MB...29.12 INCHES.

 

STORM SURGE FLOODING OF 1 TO 3 FEET ABOVE NORMAL TIDE LEVELS...

ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...CAN BE EXPECTED

ALONG THE NORTH COAST OF THE DOMINICAN REPUBLIC TODAY. WINDS AND

SEAS WILL CONTINUE SUBSIDING ALONG THE COASTLINE OF PUERTO RICO

DURING THE DAY.

 

RAINFALL ACCUMULATIONS OF 9 TO 13 INCHES...WITH ISOLATED HIGHER

AMOUNTS...CAN BE EXPECTED OVER THE DOMINICAN REPUBLIC. THESE RAINS

COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES.

ADDITIONAL RAINFALL AMOUNTS OF 5 TO 10 INCHES...LOCALLY

HIGHER...ARE POSSIBLE OVER PUERTO RICO.

 

ISOLATED TORNADOES ARE POSSIBLE OVER PUERTO RICO AND THE DOMINICAN

REPUBLIC TODAY.

 

REPEATING THE 11 AM AST POSITION...18.8 N... 68.7 W. MOVEMENT

TOWARD...WEST NEAR 7 MPH. MAXIMUM SUSTAINED

WINDS... 80 MPH. MINIMUM CENTRAL PRESSURE... 986 MB.

 

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR

PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE.

 

AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL

HURRICANE CENTER AT 2 PM AST FOLLOWED BY THE NEXT

COMPLETE ADVISORY AT 5 PM AST.

 

FORECASTER FRANKLIN

 

 

$$

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AIRCRAFT AND DROPSONDE DATA THIS MORNING INDICATED THAT JEANNE

REACHED HURRICANE STRENGTH NEAR THE EASTERN TIP OF HISPANIOLA.

PEAK FLIGHT-LEVEL WINDS OF 88 KT...AND MULTIPLE DROPSONDE SURFACE

ESTIMATES BETWEEN 63 AND 69 KT SUPPORT THE 70 KT INITIAL INTENSITY

ESTIMATE.

 

OVER THE PAST 12 HOURS JEANNE HAS BEEN MOVING 275/6. JEANNE IS

SOUTH OF A MID-LEVEL RIDGE THAT SHOULD PRODUCE A GENERALLY

WEST-NORTHWESTWARD MOTION OVER THE NEXT COUPLE OF DAYS...AND MODEL

GUIDANCE IS VERY TIGHTLY CLUSTERED OVER THIS INTERVAL. AFTER THAT

THERE IS CONSIDERABLE UNCERTAINTY DEPENDING ON THE EVOLUTION OF THE

MID-LEVEL REMNANTS OF IVAN...WHICH COULD BE ANWHERE FROM THE

TENNESSEE VALLEY TO CAPE HATTERAS IN THREE DAYS. THE MORE EASTERN

SOLUTIONS RESULT IN A MORE NORTHERLY TRACK OF JEANNE THROUGH 5

DAYS...AS INDICATED BY THE GFS AND UKMET. MORE WESTWARD

TRACKS...TOWARD FLORIDA...ARE INDICATED BY THE GFDL...ECMWF...AND

FSU SUPERENSEMBLE. STEERING CURRENTS ARE EXPECTED TO BECOME WEAK

IN ABOUT 48 HOURS AND IT IS NOT YET POSSIBLE TO CONFIDENTLY CHOOSE

BETWEEN THE SCENARIOS OUTLINED ABOVE. THE OFFICIAL FORECAST LIES A

LITTLE TO THE LEFT OF THE MODEL CONSENSUS...AND REPRESENTS A

COMPROMISE BETWEEN THE EXTREMES OF THE GFS AND GFDL GUIDANCE. IT

IS QUITE CURIOUS THAT THE SUPERENSEMBLE 5-DAY POINT LIES TO THE

LEFT OF ALL OF ITS COMPONENTS...BUT THIS CAN HAPPEN GIVEN THE WAY

THAT BIAS-CORRECTING MODEL IS CONSTRUCTED.

 

JEANNE SHOULD WEAKEN BELOW HURRICANE STRENGTH OVER HISPANIOLA...BUT

EVENTUALLY SHOULD COME UNDER LIGHT ANTICYCLONIC FLOW ASSOCIATED

WITH THE REMNANTS OF IVAN. THIS...AND THE WARM WATERS OF THE

BAHAMAS...SHOULD ALLOW RESTRENGTHENING. THE OFFICIAL FORECAST IS

CLOSE TO THE GFDL AND SHIPS GUIDANCE.

 

FORECASTER FRANKLIN

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000

WTNT31 KNHC 161743

TCPAT1

BULLETIN

HURRICANE JEANNE INTERMEDIATE ADVISORY NUMBER 12A

NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL

2 PM AST THU SEP 16 2004

 

...HURRICANE JEANNE MOVING OVER THE NORTHEASTERN DOMINICAN

REPUBLIC...

 

A HURRICANE WARNING REMAINS IN EFFECT IN THE DOMINICAN REPUBLIC FROM

PUERTO PLATA TO ISLA SAONA.

 

A HURRICANE WARNING REMAINS IN EFFECT FOR THE SOUTHEASTERN

BAHAMAS...INCLUDING THE ACKLINS...CROOKED ISLAND...THE

INAGUAS...MAYAGUANA...AND THE RAGGED ISLANDS...AS WELL AS FOR THE

TURKS AND CAICOS ISLANDS.

 

A HURRICANE WATCH REMAINS IN EFFECT FOR THE CENTRAL

BAHAMAS...INCLUDING CAT ISLAND...THE EXUMAS...LONG ISLAND...RUM

CAY...AND SAN SALVADOR.

 

A TROPICAL STORM WARNING REMAINS IN EFFECT ALONG THE NORTH COAST OF

HISPANIOLA FROM LE MOLE ST NICHOLAS TO WEST OF PUERTO PLATA...AND

FROM ISLA SAONA TO SANTO DOMINGO.

 

A HURRICANE WATCH REMAINS IN EFFECT ALONG THE NORTHERN COAST OF THE

DOMINICAN REPUBLIC FROM WEST OF PUERTO PLATA WESTWARD TO MONTE

CRISTO AND ALONG THE SOUTHERN COAST OF THE DOMINICAN REPUBLIC FROM

ISLA SAONA WESTWARD TO SANTO DOMINGO. THESE WATCHES MAY BE

DISCONTINUED LATER THIS AFTERNOON.

 

INTERESTS IN THE NORTHWESTERN BAHAMAS SHOULD MONITOR THE PROGRESS OF

JEANNE.

 

AT 2 PM AST...1800Z...THE CENTER OF HURRICANE JEANNE WAS LOCATED

NEAR LATITUDE 18.8 NORTH...LONGITUDE 69.0 WEST OR INLAND ABOUT 65

MILES... 105 KM...EAST-NORTHEAST OF SANTO DOMINGO IN THE DOMINICAN

REPUBLIC.

 

JEANNE IS MOVING JUST NORTH OF DUE WEST NEAR 7 MPH

...11 KM/HR. A WEST-NORTHWESTWARD MOTION IS EXPECTED OVER THE NEXT

24 HOURS. ON THE FORECAST TRACK...THE CENTER OF JEANNE IS EXPECTED

TO REMAIN NEAR OR JUST INLAND OF THE NORTHERN COAST OF THE

DOMINICAN REPUBLIC FOR MUCH OF THE NEXT 24 HOURS.

 

MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/HR...WITH HIGHER

GUSTS. JEAN IS EXPECTED TO WEAKEN TO A TROPICAL STORM LATER TODAY

AS A RESULT OF ITS ENCOUNTER WITH HISPANIOLA...BUT SHOULD REGAIN

HURRICANE STRENGTH ON FRIDAY.

 

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 15 MILES... 30 KM...

FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP

TO 70 MILES...110 KM.

 

ESTIMATED MINIMUM CENTRAL PRESSURE IS 989 MB...29.20 INCHES.

 

STORM SURGE FLOODING OF 1 TO 3 FEET ABOVE NORMAL TIDE LEVELS...

ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...CAN BE EXPECTED

ALONG THE NORTH COAST OF THE DOMINICAN REPUBLIC TODAY. WINDS AND

SEAS WILL CONTINUE SUBSIDING ALONG THE COASTLINE OF PUERTO RICO

DURING THE DAY.

 

RAINFALL ACCUMULATIONS OF 9 TO 13 INCHES...WITH ISOLATED HIGHER

AMOUNTS...CAN BE EXPECTED OVER THE DOMINICAN REPUBLIC. THESE RAINS

COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES.

ADDITIONAL RAINFALL AMOUNTS OF 5 TO 10 INCHES...LOCALLY

HIGHER...ARE POSSIBLE OVER PUERTO RICO.

 

ISOLATED TORNADOES ARE POSSIBLE OVER PUERTO RICO AND THE DOMINICAN

REPUBLIC TODAY.

 

REPEATING THE 2 PM AST POSITION...18.8 N... 69.0 W. MOVEMENT

TOWARD...WEST NEAR 7 MPH. MAXIMUM SUSTAINED

WINDS... 75 MPH. MINIMUM CENTRAL PRESSURE... 989 MB.

 

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR

PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE.

 

THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL

HURRICANE CENTER AT 5 PM AST.

 

FORECASTER FRANKLIN

 

 

$$

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IN THE EXTENDED PERIOD FROM SUNDAY THROUGH FRIDAY...JEANNE IS THE

BIG FORECAST PROBLEM. ALMOST ALL GUIDANCE KEEPS JEANNE EAST OF THE

FLORIDA PENINSULA IN THE BAHAMAS AS WELL AS THE OFFICIAL FORECAST

WHICH WILL BE FOLLOWED. HOWEVER...12Z UPPER AIR ANALYSIS SHOWS GOOD

RIDGING ACROSS SOUTH FLORIDA WITH GOOD HEIGHT RISES AND WARMING AT

H8 AND H7. THIS KEEPS JEANNE ON A MORE WESTWARD PATH THROUGH THE

FIRST PART OF THE WEEKEND. THEREAFTER THE RIDGE IS FORECAST TO

WEAKEN AS IVAN MOVES ACROSS THE CAROLINAS AND DRAWS JEANNE ON A MORE

NORTHWARD PATH. AT PRESENT THE STORM IS SMALL AND IT SHOULD HAVE

SOME TROUBLE WITH THE MOUNTAINS OF HISPANIOLA...BUT WE MAY HAVE SOME

KIND OF WATCH WITH WHICH TO DEAL AT SOME POINT POSSIBLY SUNDAY. IF

JEANNE DOES NOT HAVE MUCH TROUBLE WITH HISPANIOLA...THAT WOULD BE A

TESTAMENT TO THE POTENTIAL OF THE SYSTEM ONCE IT MOVES AWAY FROM THE

ISLAND. THIS FORECAST PACKAGE SCENARIO KEEPS JEANNE OFFSHORE WITH

SOUTH FLORIDA IN A NORTHEAST FLOW BACKING TO NORTHWEST AS JEANNE

MOVES EAST OF THE PENINSULA. THE METRO EAST COAST WOULD BE ON THE

WEST SIDE OF THE STORM ASSUMING THIS FORECAST TRACK.

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THE INITIAL MOTION IS 275/7 AS JEANNE CONTINUES TO EDGE INLAND OVER

THE NORTHEASTERN DOMINICAN REPUBLIC. DESPITE ITS TREK OVER

LAND...IT HAS BEEN MAINTAINING A WELL-DEFINED EYE VISIBLE ON THE

SAN JUAN NWS RADAR WITH EXCELLENT BANDING FEATURES. CLOUD TOPS

HAVE WARMED HOWEVER...AND IT IS PRESUMED THAT THE WINDS HAVE

DROPPED JUST BELOW HURRICANE STRENGTH.

 

THE PREVIOUS OFFICIAL FORECAST WAS A COMPROMISE BETWEEN THE

RIGHT-LEANING GFS AND LEFT-LEANING GFDL MODELS. THIS

AFTERNOON...THE GFS SHIFTED WESTWARD AND THE GFDL SHIFTED

EASTWARD...SIGNIFICANTLY NARROWING THE GUIDANCE ENVELOPE. THE

OFFICIAL FORECAST HAS NOT BEEN CHANGED MUCH FROM THE PREVIOUS

ADVISORY. GLOBAL GUIDANCE IS A LITTLE MORE CONSISTENT IN SHOWING

THAT THE REMNANTS OF IVAN WILL BE CLOSE ENOUGH TO THE SOUTHEAST

U.S. COAST TO DEFLECT JEANNE'S TRACK TO THE RIGHT IN 2-3 DAYS.

HOWEVER...BUILDING HEIGHTS OVER THE NORTHEAST U.S. IN ABOUT 5 DAYS

ARE EXPECTE TO PREVENT JEANNE FROM RECURVING OUT TO SEA. WITH THE

FIVE DAY FORECAST POINT NEAR THE U.S. COASTLINE...THIS MIGHT BE A

GOOD TIME TO REMIND EVERYONE THAT THE AVERAGE FIVE DAY NHC OFFICIAL

FORECAST ERROR IS ABOUT 375 MILES...IN OTHER WORDS...IT IS STILL

TOO SOON TO BE SURE WHAT PORTION OF THE UNITED STATES MIGHT BE

AFFECTED BY JEANNE.

 

THE UPPER ENVIRONMENT AROUND JEAN IS CHARACTERIZED BY A HIGHLY

DIVERGENT FLOW THAT WOULD FAVOR STRENGTHENING AFTER JEANNE CLEARS

HISPANIOLA. THE OFFICIAL FORECAST REMAINS CLOSE TO THE SHIPS AND

GFDL GUIDANCE.

 

FORECASTER FRANKLIN

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