Best we can do at this point is roll with the NHC forecast track, which puts Katrina inland very close to the Alabama/Mississippi state line at midday Monday.
Katrina then moves to a point near Birmingham early Tuesday morning, and then on to Chattanooga Tuesday afternoon.
Under the assumption that Katrina ramps up to a category four storm, here is the impact on Alabama:
Damage on the Alabama Gulf coast (Dauphin Island, Gulf Shores, Orange Beach) similar to Ivan in September 2004... except in this case the threat to Mobile county and city of Mobile will be much greater. Storm surge flooding from Mobile Bay could be very severe.
Significant tree and power line damage as far north as Birmingham with widespread and lengthy power outages. For Birmingham/Tuscaloosa/Anniston/Gadsden, worst weather will come from 6:00 p.m. Monday through 6:00 a.m. Tuesday.
All of this is assuming NHC track is correct.
Unfortunately, this track is about the worst possible scenario for Mobile and Birmingham.
Changes are possible, and likely.
I can't remember the last time NHC adjusted a track 200 to 300 miles from one package to another, but I agree this is the course of least regret.
Due to tremendous work load due to track change I will not be able to crank out a video update afternoon...
As we have mentioned in recent days, there is almost always one big surprise in every tropical system. Looks like we have our surprise.
Are there any more coming? Probably. The 18Z run of the NAM is taking Katrina toward Mexico.... but needless to say that is quite an outlier
See the blend of model output here:
http://euler.atmos.colostate.edu/~vigh/guidance/atlantic/early2.p
ng
Katrina then moves to a point near Birmingham early Tuesday morning, and then on to Chattanooga Tuesday afternoon.
Under the assumption that Katrina ramps up to a category four storm, here is the impact on Alabama:
Damage on the Alabama Gulf coast (Dauphin Island, Gulf Shores, Orange Beach) similar to Ivan in September 2004... except in this case the threat to Mobile county and city of Mobile will be much greater. Storm surge flooding from Mobile Bay could be very severe.
Significant tree and power line damage as far north as Birmingham with widespread and lengthy power outages. For Birmingham/Tuscaloosa/Anniston/Gadsden, worst weather will come from 6:00 p.m. Monday through 6:00 a.m. Tuesday.
All of this is assuming NHC track is correct.
Unfortunately, this track is about the worst possible scenario for Mobile and Birmingham.
Changes are possible, and likely.
I can't remember the last time NHC adjusted a track 200 to 300 miles from one package to another, but I agree this is the course of least regret.
Due to tremendous work load due to track change I will not be able to crank out a video update afternoon...
As we have mentioned in recent days, there is almost always one big surprise in every tropical system. Looks like we have our surprise.
Are there any more coming? Probably. The 18Z run of the NAM is taking Katrina toward Mexico.... but needless to say that is quite an outlier
See the blend of model output here:
http://euler.atmos.colostate.edu/~vigh/guidance/atlantic/early2.p
ng
on August 26, 2005, 3:11 pm
are you fearing Ivanesq damage because of storm surge and wave action or the cat 4-5 winds possible now with this storm?
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on August 26, 2005, 3:27 pm
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on August 26, 2005, 4:06 pm
Have we already forgot about the Ivan errors made by ABC33/40. James and company took it upon themselves to air a special about how bad it would get in Birmingham/Tuscaloose, etc. We would have significant tree damage and no power for a month, etc.
James - I beg you before you start talking about the end of all civilizaton again, take a minute and think about your forecasts. Do not drop off the deep end again. Stop trying to scare the masses with your quesses just like Ivan.
And just for the record, I believe James is a great weather person. He has saved many lives with his forecasts. But the "run for the hills" forecasts have got to be better thought out before you post them.
Step back, breathe, think about the impact of your message and then deliver a professional weather forecast.
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on August 26, 2005, 8:17 pm
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