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Hurricane Ian


Scott747
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1 minute ago, geddyweather said:

That Sanibel camera at Lindgren & East Gulf is horrifying. You could see the road when I started watching 10 minutes ago, now all submerged and rising fast.

The surge will come in very rapidly with the eyewall coming onshore. The much higher wind will pile in the water. Soon that same surge is probably coming for Cape Coral as their wind increases/changes direction to more onshore. 

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First extreme wind warning just issued:

 

Quote

An extreme wind warning is in effect for Cape Coral FL, Bonita Springs FL, Estero FL until 12:45 PM EDT for extremely dangerous hurricane winds. Treat these imminent extreme winds as if a tornado was approaching and move immediately to an interior room or shelter NOW!.

 

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https://twitter.com/NWSTampaBay/status/1575134808707018752?s=20&t=ykf9_kXdUYDtrAeW2TQR1g

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The frictional convergence enhancement is definitely in play. I wish there was a plane in there, likely an unquestionable Cat 5 right now, if we had the data.

That eastern jog is bringing the inner region of constant spiral bands (and also this region is the extent of the CDO) very close to the SE FL metro areas. Currently these 'inner bands' extend as far as the Everglades in Broward. 

I think it'll get here. In the meantime, constant 20-40 mph gusts even without any rain. 

Further, the weather could get quite crazy in SE FL when this hits land and angular momentum spreads out rapidly. Angular momentum spreading out should come in the form of enhanced spiral band activity.

Also, it is a clear and hot day in Cuba, and the CAPE from there is being advected right into South Florida.

So although things have been quiet for several hours, I don't think it will be quiet for long here, and this has strong potential to be a memorable hurricane event in SE FL. 

P.S. I am only 130 miles from the eyewall of a cat 5 hurricane. it's crazy to think about. 

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11AM Update no change in max sustained

SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...26.3N 82.5W
ABOUT 45 MI...75 KM WNW OF NAPLES FLORIDA
ABOUT 50 MI...80 KM SSW OF PUNTA GORDA FLORIDA
MAXIMUM SUSTAINED WINDS...155 MPH...250 KM/H
PRESENT MOVEMENT...NNE OR 15 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...937 MB...27.67 INCHES
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Just now, Eskimo Joe said:

The latest NHC discussion (#24 for future archival) is absolutely worth reading. Eric Blake talks about the worth of the hurricane hunters and Tampa Bay doppler radar. Wish I could post it but I'm mobile.

[quote]

000
WTNT44 KNHC 281458
TCDAT4

Hurricane Ian Discussion Number  24
NWS National Hurricane Center Miami FL       AL092022
1100 AM EDT Wed Sep 28 2022

Air Force Reserve and NOAA Hurricane Hunter data was absolutely
critical this morning in diagnosing the rapid intensification of
Ian, despite both planes undergoing multiple eyewall penetrations
experiencing severe turbulence.  That data supported an intensity of 
about 135 kt a few hours ago.  Since that time, high-resolution
Tampa Doppler radar data has been sampling the eyewall near 10,000 
ft with winds up to 155 kt, indicating that Ian is on the threshold 
of category 5 status.  The maximum winds are set to 135 kt on this 
advisory.

Ian is expected to make landfall in southwestern Florida in the next 
few hours as a catastrophic hurricane.  No changes were made to the 
track forecast near Florida, except to be faster to come into line 
with the latest consensus aids.   One important change is that Ian 
is likely to remain more intact as it crosses the Florida peninsula 
(due to both its stronger initial wind speed and its faster forecast 
forward speed), and this now increases the threat of hurricane-force 
winds on the east coast of Florida.  This necessitates the issuance 
of a Hurricane Warning on the east coast of central Florida.  While 
significant re-strengthening of Ian might not occur over the 
Atlantic Ocean, model guidance has been catching up with a 
trough interaction from a shortwave over the southern United 
States, and are stronger than yesterday on Ian's intensity with 
more baroclinic forcing.  Thus, a Hurricane Watch has been issued 
from northeastern Florida northward up the coast through most of 
coastal South Carolina.   The new intensity forecast is raised from 
the previous one, near the latest statistical-dynamical guidance.


Key Messages:

1. Catastrophic storm surge inundation of 12 to 18 feet above ground 
level along with destructive waves are expected somewhere along the 
southwest Florida coastline from Englewood to Bonita Beach, 
including Charlotte Harbor. Residents in these areas should urgently 
follow any evacuation orders in effect. 

2. Catastrophic wind damage is beginning along the southwestern 
coast of Florida today near the landfall location.  Hurricane-force 
winds are expected to extend well inland along near the core of Ian. 
Preparations to protect life and property should be urgently rushed 
to completion. 

3. Heavy rainfall will spread across the Florida peninsula through 
Thursday and reach portions of the Southeast U.S. later this week 
and this weekend.  Widespread, life-threatening catastrophic
flooding is expected across portions of central Florida with 
considerable flooding in southern Florida, northern Florida, 
southeastern Georgia and coastal South Carolina. Widespread, 
prolonged major and record river flooding is expected across 
central Florida.

4. Hurricane conditions are expected along the east-central Florida 
coast overnight, where a Hurricane Warning has been issued.  
Hurricane conditions are possible from northeastern Florida to 
portions of South Carolina on Thursday and Friday, and a Hurricane 
Watch has been issued for that area.


FORECAST POSITIONS AND MAX WINDS

INIT  28/1500Z 26.3N  82.5W  135 KT 155 MPH
 12H  29/0000Z 27.3N  82.1W  105 KT 120 MPH...INLAND
 24H  29/1200Z 28.3N  81.4W   60 KT  70 MPH...INLAND
 36H  30/0000Z 29.3N  80.8W   55 KT  65 MPH...OVER WATER
 48H  30/1200Z 30.8N  80.6W   55 KT  65 MPH...OVER WATER
 60H  01/0000Z 32.9N  80.9W   45 KT  50 MPH...INLAND
 72H  01/1200Z 34.7N  81.5W   30 KT  35 MPH...POST-TROP/EXTRATROP
 96H  02/1200Z 36.0N  81.5W   20 KT  25 MPH...POST-TROP/EXTRATROP
120H  03/1200Z...DISSIPATED

$$
Forecaster Blake

[/quote]

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3 minutes ago, Maestrobjwa said:

Always amazes me how these storms will usually hit a brick wall at 155 just to stay just under Cat 5 for records, lol Any time for further strengthening?

Because NHC rounds, so until they have enough evidence to support the jump from 135 to 140 kts, then it stays stuck at 155.

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