NCEP Medium Range Model of the Day...Last Night's Euro

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MWatkins
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NCEP Medium Range Model of the Day...Last Night's Euro

#1 Postby MWatkins » Thu Sep 11, 2003 3:21 pm

Big time concern that the NCEP model is underdoing pressure heights in the US EC and western atlantic throughout the forecast period.

http://www.hpc.ncep.noaa.gov/discussions/pmdepd.html

http://www.cpc.ncep.noaa.gov/products/p ... xus06.html

And the model of the day for the mid period because it has the best handle on the latge scale features?

Last night's euro.

You know the operational GFS is having a bad day when it's an outlier in the ensemble group.

MW
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#2 Postby Steve H. » Thu Sep 11, 2003 3:24 pm

Yep, totally agree MWatkins! This is going to get a bit stressful here on the Space Coast!!
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#3 Postby JetMaxx » Thu Sep 11, 2003 3:30 pm

I'm very concerned this monster will track much farther south than many models are indicating....1) because the ECMWF does better with intense hurricanes, and it has consistently brought the hurricane west toward the Turks and Caicos, then WNW through the Bahamas...and 2) Isabel is now becoming so extremely intense, she has created her own enviroment...and will serve to "pump up the ridge" to the north of the hurricane.

This hurricane is now a category 5, and from the Dvorak images, continues to intensify:
http://www.ssd.noaa.gov/PS/TROP/DATA/RT/FLOAT/BD/20.jpg

This hurricane is now IMHO getting close to being another Mitch or Allen...with 3 hour T-values in the 7.1-7.2 range, and continuing to deepen (the dark blotches have increased inside the solid white ring during the past couple hours since the TSAB rating of 7).

I now believe this hurricane has sustained winds of 140-145 kts and a pressure in the 915 mb range (and wish to God a recon flight was in there to verify my suspicions)...a hurricane this large and intense will be very difficult to forecast....just as Mitch and Camille were.
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#4 Postby Steve H. » Thu Sep 11, 2003 3:38 pm

I just wonder if it will come to a halt. As NWS Melbourne said, the ridge in the western Atlantic will be strong but the origin is not subtropical. Does this mean that it will not move the cyclone westward much???
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#5 Postby bkhusky2 » Thu Sep 11, 2003 3:45 pm

5 PM Advisory has her at 160MPH, with a pressure of 921!
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