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Major Hurricane Irma- STORM MODE


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Just now, MattPetrulli said:

Irma seems to be over preforming in SE Florida with a 100 MPH gust recently reported in Miami area. They're experiencing and taking on the head some healthy tropical storm conditions  that will continue the next few hours and likely be mixed in with gusts over hurricane force.

The northeast quadrant will be no joke even if the destructive stuff stays on the west coast. Banding will be coming through all day that will be good at mixing hurricane force gusts down throughout SE FL. There will also probably be some damaging surge on the beaches. 

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Just now, jm1220 said:

The northeast quadrant will be no joke even if the destructive stuff stays on the west coast. Banding will be coming through all day that will be good at mixing hurricane force gusts down throughout SE FL. There will also probably be some damaging surge on the beaches. 

Yeah judging on the conditions in SE FL, we're probably going to see a damaging inland wind event for inner parts of the Florida Peninsula 

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4 minutes ago, MattPetrulli said:

Irma seems to be over preforming in SE Florida with a 100 MPH gust recently reported in Miami area. They're experiencing and taking on the head some healthy tropical storm conditions  that will continue the next few hours and likely be mixed in with gusts over hurricane force.

this doesn't surprise me.  people need to remember just how narrow florida is.  it's about 100 miles from naples to boynton.  impacts will be felt from coast to coast.  the wave action in miami right now is impressive.  as irma gains latitude, the impacts on the east coast will only increase.

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12 minutes ago, Morris said:

105 kts peak SFMR in the NE eyewall in the new recon pass. 

It's likely that the storm was only a category 3 at landfall.

Dropsonde in the NE Eyewall was 129 knots at the surface.

 

roduct: Air Force Temp Drop (Dropsonde) Message (UZNT13 KNHC)
Transmitted: 10th day of the month at 13:53Z
Agency: United States Air Force
Aircraft: Lockheed WC-130J Hercules with reg. number AF97-5306
Storm Number: 11
Storm Name: Irma (flight in the North Atlantic basin)
Mission Number: 30
Observation Number: 11

Part A...

 

Date: Near the closest hour of 14Z on the 10th day of the month
Highest Mandatory Level For Which Wind Was Reported: 700mb
Coordinates: 24.9N 81.3W
Location: 38 statute miles (62 km) to the NE (52°) from Key West, FL, USA.
Marsden Square: 081

 
Surface and Standard Isobaric Surfaces
Level Geo. Height Air Temp. Dew Point Wind Direction Wind Speed
1000mb -446m (-1,463 ft) This level does not exist in this area of the storm above the surface level.
951mb (28.09 inHg) Surface (Sea Level) 26.4°C (79.5°F) 25.4°C (78°F) 105° (from the ESE) 129 knots (148 mph)
925mb 246m (807 ft) 25.4°C (77.7°F) 24.3°C (76°F) 120° (from the ESE) 140 knots (161 mph)
850mb 989m (3,245 ft) 21.4°C (70.5°F) 20.5°C (69°F) 135° (from the SE) 130 knots (150 mph)
700mb 2,663m (8,737 ft) 14.0°C (57.2°F) 13.9°C (57°F) 150° (from the SSE) 117 knots (135 mph)
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5 minutes ago, HIPPYVALLEY said:

Although far from the eye SE Florida must be taking some pretty good sustained winds.  I'm seeing over a million w/o power just in Miami-Dade and Broward counties according to FPL. 

9:49 AM: Wind gust of 82 mph was recorded at the #Miami International Airport (ITWS wind sensor).
A wind gust of 120 mph was reported by the RAWs observing site at the National Key Deer Refuge on Big Pine Key at 9:38 AM EDT.
 
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7 minutes ago, HIPPYVALLEY said:

Although far from the eye SE Florida must be taking some pretty good sustained winds.  I'm seeing over a million w/o power just in Miami-Dade and Broward counties according to FPL. 

SFMR had some questionable (but not flagged) readings south of Miami about an hour ago. These are stronger than SFMR found in the eyewall, but less than the eyewall dropsonde.

116kt are unflagged. The two 120+kt readings are flagged though.

 

132230 2513N 08036W 6969 02979 //// +079 //// 148088 089 098 002 05
132300 2512N 08038W 6966 02979 //// +081 //// 151088 091 123 001 05
132330 2511N 08039W 6964 02974 //// +080 //// 153089 090 /// /// 05
132400 2510N 08041W 6969 02962 //// +082 //// 153090 091 /// /// 05
132430 2510N 08042W 6962 02967 //// +083 //// 156091 093 /// /// 05
132500 2509N 08044W 6965 02952 9836 +097 //// 153094 095 125 011 05
132530 2508N 08045W 6962 02958 9835 +119 +119 154094 099 116 026 00
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3 minutes ago, bluewave said:
9:49 AM: Wind gust of 82 mph was recorded at the #Miami International Airport (ITWS wind sensor).

Impressive.  I know we also have a 100 mph report from Miami but that I believe was from an island just off the coast.  

 

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1 minute ago, cwc said:

Doesn't anyone find it odd that the dropsone wind data doesn't match the on ground data in the slightest?

Usually the max sustained winds are going to be occurring over open water and friction over land will slow them down a bit. Keep in mind it is largely over open water right now.

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Just now, CoastalWx said:

Given the current nrly motion for the last few hours, it seems like landfalll could be more towards Marco island. Obviously every little wobble or turn NW is critical, but that's how it looks right now.

Agreed sir, definitely seems that way.  My Cousin lives 10 miles east of Tampa Bay and have been watching closely for that reason. 

 

In other news does anyone have a recon feed? The one I usually use is having technical difficulties.  Looks like surface winds are about 112 kt but I don't trust the data

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2 minutes ago, CoastalWx said:

Given the current nrly motion for the last few hours, it seems like landfalll could be more towards Marco island. Obviously every little wobble or turn NW is critical, but that's how it looks right now.

Latest radar loop looks almost due N movement.  A shift just E of current modeling will bring some pretty good sustained winds into the Orlando area. Last night I was guesstimating 2 million w/o power from this but I may be way low on that number. 

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2 minutes ago, HIPPYVALLEY said:

Latest radar loop looks almost due N movement.  A shift just E of current modeling will bring some pretty good sustained winds into the Orlando area. Last night I was guesstimating 2 million w/o power from this but I may be way low on that number. 

Seems like it is bearing down on Everglades City in the extended radar frames.

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10 minutes ago, Mountain_Patch said:

Small top wind field on the NE eye wall. HCF/TSF winds are far out but only a small area will see the high winds.

There will be plenty of damaging winds to the right of the eye. There are probably sustained hurricane force winds around Miami if there are gusts near 100 mph. That will continue north up the coast too. 

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