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Hurricane Isabel Now Expected To Hit The United States
National Hurricane Center ^
| 9/14/03
| NHC
Posted on 09/14/2003 8:52:00 AM PDT by I_love_weather
Sorry for the caps...this is the way they post these things
THE MODELS ARE NOW IN EXCELLENT AGREEMENT WITH ISABEL MAKING LANDFALL ALONG THE CENTRAL U.S. EAST COAST IN ABOUT 4 DAYS. THERE IS STILL UNCERTAINTY ON WHERE THE EXACT LANDFALL COULD OCCUR SINCE THE DEVELOPING CENTRAL U.S. TROUGH COULD DEEPEN AND DIG SOUTHWARD MORE THAN IS FORECAST BY THE GLOBAL MODELS...WHICH COULD LEAD A MORE NORTHWARD MOTION AND LANDFALL FARTHER UP THE EAST COAST THAN WHAT IS CURRENTLY FORECAST. UNFORTUNATELY...ALL OF THE MODEL GUIDANCE AGREE ON A LARGE AND STRONG NORTH-SOUTH ORIENTED RIDGE REMAINING EAST OF ISABEL...WHICH SHOULD PREVENT THE POWERFUL HURRICANE FROM RECURVING OUT TO SEA. LANDFALL ALONG THE U.S MID-ATLANTIC COAST SOMEWHERE BETWEEN NORTH CAROLINA AND NEW JERSEY BETWEEN 4 OR 5 DAYS IS APPEARING MORE AND MORE LIKELY.
ONLY MINOR FLUCTUATIONS IN INTENSITY ARE EXPECTED FOR THE NEXT 3 DAYS AS ISABEL IS FORECAST TO MOVE OVER SIGHTLY WARMER WATER AND REMAIN IN A FAVORABLE DOUBLE-OUTFLOW PATTERN. HOWEVER...BY 96 HOURS...ISABEL IS EXPECTED TO BE ACCELERATING NORTH-NORTHWESTWARD UNDER INCREASING SOUTHERLY UPPER-LEVEL FLOW. HOWEVER...ALL OF THE MODELS ARE IN GOOD AGREEMENT ON THE CENTRAL CORE OF ISABEL REMAINING EAST OF THE STRONG JETSTREAM AND UNDER 20-25 KT 200 MB WIND. THIS WOULD TEND TO KEEP ISABEL STRONGER THAN WHAT THE SHIPS INTENSITY MODEL IS INDICATING...ESPECIALLY SINCE ISABEL WILL BE MOVING OVER THE WARM GULFSTREAM SOUTH OF THE NORTH CAROLINA OUTER BANKS AT THAT TIME. THEREFORE...LITTLE OR NO SIGNIFICANT WEAKENING IS EXPECTED TO OCCUR UNTIL AFTER LANDFALL OCCURS.
FORECASTER STEWART
Five Day Forecast Map
http://maps.wunderground.com/data/images/at200313_5day.gif
TOPICS: Breaking News
KEYWORDS: hurricaneisabel
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To: I_love_weather
Nuts. Incoming.
2
posted on
09/14/2003 8:53:07 AM PDT
by
mewzilla
To: I_love_weather
Outter Banks of NC.
Be ready for this one.
3
posted on
09/14/2003 8:54:11 AM PDT
by
jaz.357
(Homeland security MUST shut down PETA for funding the domestic terrorist organization ELF!)
To: I_love_weather
Batten down the hatches--thar's a blow acomin'
4
posted on
09/14/2003 8:54:37 AM PDT
by
Catspaw
Comment #5 Removed by Moderator
To: I_love_weather
To: jaz.357
Either it catches land there, or it's heading straight to DC.
7
posted on
09/14/2003 8:56:25 AM PDT
by
July 4th
To: I_love_weather
Looks like we're in for a lot of rain and other stuff.
To: I_love_weather
From WxAmerica meteorologist Larry Cosgrove
At this point, I suspect Isabel will skirt the shoreline of the Delmarva Peninsula before smashing into S NJ. This track scenario mirrors the UKMET scheme and lies very close to the ECMWF panels (which, under a higher resolution outlay of the home site of the model, shows a path just east of Chesapeake Bay), and is not that far from the GFS outlook either. I am going with the idea of a full phasing of Isabel with the oncoming trough complex. In history, such an action almost always creates historical weather events: Hazel (1954) set pressure and wind records in much of the Mid-Atlantic region into ONT; Agnes (1972) inundated much of PA....NY....NJ with as much as 30 inches of rainfall. I cannot say for sure what particular threat is greater with this hurricane, but the presence of a 1026MB anticyclone north and east (as well as north and west, into the Great Lakes) probably implies strong, gradient-enhanced wind gusts. The addition of vorticity from the trough may offset system weakening somewhat, so while Isabel enters (briefly) cooler SSTs before landfall, there is a case for 2-4 hours of sustained 100 mph or greater bursts along the path of the eye. I might also note that acceleration of the core pressures from S NJ into SW QC may devastate E MD....DE....NJ....C, E PA....C, E NY....W CT....W
MA....VT....W, C QC with damaging windfields and torrential rains (and a few tornadoes as well). Just keep in mind that adjustments in the storm track are highly probable through the 72 hour time frame.
end comment...
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To: I_love_weather
LITTLE OR NO SIGNIFICANT WEAKENING IS EXPECTED TO OCCUR UNTIL AFTER LANDFALL OCCURS. That means that people need to prepare their property as best they can, and then evacuate. There are no heroes who ride out a direct hit from a storm of this magnitude. Just fools.
10
posted on
09/14/2003 9:00:06 AM PDT
by
Dog Gone
Andrew meets Agnes.
What will the economic impact be? Not good.
To: Dog Gone
And hopefully the folks further inland will prepare, too.
12
posted on
09/14/2003 9:00:50 AM PDT
by
mewzilla
To: GOPcapitalist
Looks like after it hits, it will be coming right to my county.
13
posted on
09/14/2003 9:00:51 AM PDT
by
abner
(In search of a witty tag line...)
To: July 4th
Looks like it will make a mess of Chesapeake, delmarva, and possibly even the New Jersey coast. DC will probably get dumped on with rain etc. but is too far inland to bear the full brunt of the storm.
To: I_love_weather
my bet ....... it won't hit usa.... no direct hit just lotsa rain wind
15
posted on
09/14/2003 9:01:58 AM PDT
by
dennisw
(G_d is at war with Amalek for all generations)
To: Diddle E. Squat
Well, a lot of the folks who got nailed by Agnes in the Souther Tier NY/Northern Tier PA would be protected by the Tioga-Hammond Dam. Still some localized flooding, but nothing like before. Ground's not saturated, either, which should help.
16
posted on
09/14/2003 9:02:53 AM PDT
by
mewzilla
To: I_love_weather
" LANDFALL ALONG THE U.S MID-ATLANTIC COAST SOMEWHERE BETWEEN NORTH CAROLINA AND NEW JERSEY BETWEEN 4 OR 5 DAYS IS APPEARING MORE AND MORE LIKELY." The time to prepare is NOW! Good luck on the east coast.
17
posted on
09/14/2003 9:02:58 AM PDT
by
blam
To: Dog Gone
This looks bad.
18
posted on
09/14/2003 9:03:17 AM PDT
by
MEG33
To: I_love_weather
This storm is capable of massive damage wherever it hits. It should also be noted that the areas that this storm is expected to hit have had a very wet summer and the ground is saturated. SO it will not take that much rain to cause severe flooding. A widespread incidence of 5-10 inch rains in these areas (common for any tropical storm) could well end up causing more damage than the winds and ocean surf.
In years past, hurricanes have been "hyped" to the point that nobody takes them as seriously as they used to. Hurricane Andrew is an example of what a Cat 5 storm can do but that was over 10 years ago and memories are fading (especially outside Florida). The U.S. has been fairly fortunate with respect to hurricanes during the past 75 years. We've only had two truly catastrophic Cat 5 hurricanes make landfall during that time (Camille in 1969 and Andrew in 1992).
In the Northeast, the last truly devastating hurricane was back in 1938 and not many are still around that remember that one.
19
posted on
09/14/2003 9:04:17 AM PDT
by
SamAdams76
(220.4 (-79.8) Earning back my youth one mile at a time)
To: Dog Gone
There are no heroes who ride out a direct hit from a storm of this magnitude. Just fools. Exactly. The waves on the atlantic coast have been overhead all week including some over 10+ feet and that's with the storm several hundred miles off shore. There is virtually no coastal seawall like Galveston's either - just lots of dunes. Somebody who lives near the coast would have to be insane to try to sit through this one.
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