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Major Hurricane Florence: STORM MODE THREAD


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This has to be the best the hurricane has looked since entering radar; though satellite still isn't that great. Eye finally looks closed off, and vigorous convection spiraling out from it.

Screen%20Shot%202018-09-13%20at%2010.42.

 

Edit:

Here's a video of radar - specifically not embedding due to size:

http://www.vorklift.com/weather/9-2018/9-13-18_10-52pm.gif

 

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SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...34.0N 76.8W
ABOUT 50 MI...80 KM S OF MOREHEAD CITY NORTH CAROLINA
ABOUT 60 MI...95 KM ESE OF WILMINGTON NORTH CAROLINA
MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...956 MB...28.23 INCHES
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2 minutes ago, MattPetrulli said:

Don't understand why it's a 1 now despite the ever improving radar presentation

Anyhow, sounds bad on New Bern public safety scanner rescues in progress and structures down apparently.

Truthfully, they're being generous. It is more likely to have sustained winds of 80-85 MPH based on the SFMR data from this last recon flight. Despite a mid 950s MB pressure the wind field so broad/diffuse that there isn't enough of a gradient to get higher winds. The system certainly does have a higher gust component than some other canes we've tracked. 

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3 minutes ago, MattPetrulli said:

Don't understand why it's a 1 now despite the ever improving radar presentation

Anyhow, sounds bad on New Bern public safety scanner rescues in progress and structures down apparently.

From 11 pm discussion

 

Radar imagery and data from an Air Force Reserve Hurricane Hunter
flight indicate that Florence has an inner eye that is open on the
east side, and a secondary wind maximum that has already begun to
spread inland across southeastern North Carolina.  The highest
flight-level wind (102 kt) was actually measured within the outer
band that is moving onshore in the Wilmington area.  However, the
highest SFMR-measured wind was 73 kt, and the highest land
observation so far was a sustained wind of 72 kt at Cape Lookout,
North Carolina.  On top of that, NOAA Doppler radar velocities have
been running around 100 kt at about 5,000 feet.  All of these data
support reducing the initial intensity to 80 kt, but based on the
higher flight-level winds, the gust factor is being set a little
higher than is typical for an 80-kt hurricane.
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9 minutes ago, Hoosier said:

From 11 pm discussion

 


Radar imagery and data from an Air Force Reserve Hurricane Hunter
flight indicate that Florence has an inner eye that is open on the
east side, and a secondary wind maximum that has already begun to
spread inland across southeastern North Carolina.  The highest
flight-level wind (102 kt) was actually measured within the outer
band that is moving onshore in the Wilmington area.  However, the
highest SFMR-measured wind was 73 kt, and the highest land
observation so far was a sustained wind of 72 kt at Cape Lookout,
North Carolina.  On top of that, NOAA Doppler radar velocities have
been running around 100 kt at about 5,000 feet.  All of these data
support reducing the initial intensity to 80 kt, but based on the
higher flight-level winds, the gust factor is being set a little
higher than is typical for an 80-kt hurricane.

Ah okay that explains it

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6 minutes ago, Wmsptwx said:

Crazy it may be down to min 1 by landfall.

It would be kind of weird if the landfall wind speed ends up being less than the maximum sustained wind that has already been observed (82 mph Cape Lookout), but I guess that can happen in situations like this with a prolonged slowdown near a coast.

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The convection to the NW side of the center is crazy now.  Really blowing up.  For a Category 1 storm, this thing is packing quite a punch.  I think it's what they said - it's distributing its energy in different ways rather than increasing winds.  It's telling that the pressure hasn't dropped at all in a while.

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4 minutes ago, SnowGoose69 said:

As it moves further inland you also have more deciduous trees or evergreens than at the coast where there are lots of palms.  Those will easily go down with 60-70mph winds and saturated ground.  A cat 1 in NC does alot more damage in NC than it does in Florida because mostly palms there

Yes. Our ground here in east NC is over saturated. My main concern is the tree damage to property and electrical grid in rural counties

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