danielw
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| (Moderator) |
| Fri Sep 24 2010 12:14 PM |
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Re: TS Matthew
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Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 24th day of the month at 15:45Z
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 309)
Storm Number & Year: 15L in 2010
Storm Name: Matthew (flight in the North Atlantic basin)
Mission Number: 2
Observation Number: 17
A. Time of Center Fix: 24th day of the month at 15:15:50Z
B. Center Fix Coordinates: 14°30'N 82°10'W (14.5N 82.1667W)
B. Center Fix Location: 336 miles (541 km) to the S (189°) from George Town, Cayman Islands (GBR).
C. Minimum Height at Standard Level: 1,425m (4,675ft) at 850mb
D & E. Estimated (by SFMR or visually) Maximum Surface Wind: Not Available
F. Maximum Flight Level Wind Inbound: From 253° at 34kts (From the WSW at ~ 39.1mph)
G. Location of Maximum Flight Level Wind Inbound: 15 nautical miles (17 statute miles) to the SW (217°) of center fix
H. Minimum Sea Level Pressure: 1002mb (29.59 inHg) - Extrapolated
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 15°C (59°F) at a pressure alt. of 1,528m (5,013ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 20°C (68°F) at a pressure alt. of 1,525m (5,003ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 5°C (41°F)
K. Sea Surface Temp (collected at same location as temp inside eye): Not Available
L. Eye Character: Not Available
M. Eye Shape: Not Available
N. Fix Determined By: Penetration and Wind
N. Fix Level: 850mb
O. Navigation Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 1 nautical mile
Remarks Section:
Maximum Flight Level Wind Outbound: 55kts (~ 63.3mph) in the northeast quadrant at 15:30:10Z
Sea Level Pressure Extrapolation From: 850mb
Maximum Flight Level Temp: 22°C (72°F) which was observed 10 nautical miles (12 statute miles) to the NE (34°) from the flight level center
Those number are out of normal alignment. Pressure is 1002mb. Roughly good for 55kt flight level wind.
The center temperatures are consistant with a near major hurricane. Although there is no reported eye. They are showing a 68F inside the center with a dewpoint of 41F. A 27 degree spread. Haven't seen anything like that in a while.
Something is working right inside the storm even though it isn't 100%.
Also note on the satellite visible imagery a large area of clouds to the east of Matthew, just south of Haiti. I would think the lee of the storm should be a bit more clearer. And this area is just close enough to be the number two system in the Caribbean.
Below is a part of 2005's Major Hurricane Wilma Vortex report, near the same area, at maximum intensity of 193mph flight level wind.
(Difference of 5000 feet of altitude also. Matthew's Vortex was at 5000 feet. Wilma's report here is at 10,000 feet. The temp dewpoint spread is nearly the same.)
H. Minimum Sea Level Pressure: 884mb (26.10 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 10°C (50°F) at a pressure alt. of 3,073m (10,082ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 24°C (75°F) at a pressure alt. of 3,043m (9,984ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 10°C (50°F)
Maximum Flight Level Wind: 168kts (~ 193.3mph) in the southeast quadrant at 6:10:20Z
http://www.tropicalatlantic.com/recon/ar...&mission=07