7:42am EDT Monday: There are concentric eyes
Posted by
Chris in Tampa on 9/4/2017, 8:28 am
As the inner eye collapses, I don't know how that might look on satellite, but it may make the storm appear to move in an odd direction briefly, in addition to possible trochoidal motions.
URNT12 KWBC 041203
VORTEX DATA MESSAGE AL112017
A. 04/11:42:11Z
B. 16 deg 47 min N
052 deg 36 min W
C. 700 mb 2640 m
D. 94 kt
E. 349 deg 12 nm
F. 083 deg 112 kt
G. 349 deg 12 nm
H. 947 mb
I. 12 C / 2953 m
J. 16 C / 3341 m
K. 10 C / NA
L. NA
M. CO15-30
N. 12345 / 7
O. 0.1 / 2 nm
P. NOAA2 0211A IRMA OB 17
MAX FL WIND 117 KT 315 / 12 NM 09:06:56Z
MAX FL TEMP 17 C 349 / 6 NM FROM FL CNTR
CNTR DROPSONDE SFC WIND 190 / 34 KTS
Product: NOAA Vortex Message (URNT12 KWBC)
Transmitted: 4th day of the month at 12:03Z
Agency: National Oceanic and Atmospheric Administration (NOAA)
Aircraft: Lockheed WP-3D Orion (Reg. Num. N42RF)
Storm Number & Year: 11 in 2017
Storm Name: Irma (flight in the North Atlantic basin)
Mission Number: 2
Observation Number: 17
A. Time of Center Fix: 4th day of the month at 11:42:11Z
B. Center Fix Coordinates: 16°47'N 52°36'W (16.7833N 52.6W)
B. Center Fix Location: 532 statute miles (856 km) to the ENE (62°) from Bridgetown, Barbados.
C. Minimum Height at Standard Level: 2,640m (8,661ft) at 700mb
D. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 94kts (~ 108.2mph)
E. Location of the Estimated Maximum Surface Wind Inbound: 12 nautical miles (14 statute miles) to the NNW/N (349°) of center fix
F. Maximum Flight Level Wind Inbound: From 83° at 112kts (From the E at ~ 128.9mph)
G. Location of Maximum Flight Level Wind Inbound: 12 nautical miles (14 statute miles) to the NNW/N (349°) of center fix
H. Minimum Sea Level Pressure: 947mb (27.97 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 12°C (54°F) at a pressure alt. of 2,953m (9,688ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 16°C (61°F) at a pressure alt. of 3,341m (10,961ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 10°C (50°F)
K. Sea Surface Temp (collected at same location as temp inside eye): Not Available
L. Eye Character: Not Available
M. Eye Shape: Concentric (has an inner and outer eye)
M. Inner Eye Diameter: 15 nautical miles (17 statute miles)
M. Outer Eye Diameter: 30 nautical miles (35 statute miles)
N. Fix Determined By: Penetration, Radar, Wind, Pressure and Temperature
N. Fix Level: 700mb
O. Navigational Fix Accuracy: 0.1 nautical miles
O. Meteorological Accuracy: 2 nautical miles
Remarks Section:
Maximum Flight Level Wind: 117kts (~ 134.6mph) which was observed 12 nautical miles (14 statute miles) to the NW (315°) from the flight level center at 9:06:56Z
Maximum Flight Level Temp: 17°C (63°F) which was observed 6 nautical miles to the NNW/N (349°) from the flight level center
Dropsonde Surface Wind at Center: From 190° at 34kts (From the S at 39mph) |
127
In this thread:
8am AST Monday: 120mph; 947mb; WSW (255 degrees) at 14mph -
Chris in Tampa,
9/4/2017, 8:21 am- Radar loop of NOAA P-3's second mission (through 10:08am EDT Monday) - Chris in Tampa, 9/4/2017, 10:36 am
- Interesting Trend with Eye Temps - CX, 9/4/2017, 10:07 am
- 9:18am EDT Monday Sonde: 946mb, 19 knots of surface wind - Chris in Tampa, 9/4/2017, 9:42 am
- 9am- West shift continues (South Florida Water Management District) - tvsteve, 9/4/2017, 9:31 am
- Radar loop from NOAA P-3 through 8:57am EDT Monday - Chris in Tampa, 9/4/2017, 9:11 am
- Recon image through 8:40am EDT - Chris in Tampa, 9/4/2017, 8:49 am
- 7:42am EDT Monday: There are concentric eyes - Chris in Tampa, 9/4/2017, 8:28 am
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