Recon Reports Dennis

[clfenwi]

Observation Number:11
Time: 1252Z
Position: 19.9 North 81.2 West
Flight Level: 3080 meters
Flight level winds: 27 knots // 290
700 millibar height: 3128 meters
Surface Winds: 310 // 20 knots






[artist]

clfenwi- you must be getting tired! thanks for keeping these posted for us.
I know you were here all night!

[smashmode]

So strong 4/low 5?

Still tracking for Mobile/Pensacola?

[Ola]

So strong 4/low 5?

Still tracking for Mobile/Pensacola?

Yeah, probably a weak Cat 5. Not bad as long as it stays weak.

[wxwatcher91]

when are we gonna get a report from the northeast quadrant...

[clfenwi]

Observation Number: 13
Time: 1349Z
Position: 21.2 North 79.6 West
Sea Level Pressure 954 millibars
Surface wind: n/a
925 millibar height: 273 meters
925 millibar winds: 138 knots // 005
850 millibar height: 1013 meters
850 millibar winds: 130 knots // 040
700 millibar height: 2685 meters
700 millibar winds: 135 knots // 140

Eyewall

corrected time

[TampaFl]

So strong 4/low 5?

Still tracking for Mobile/Pensacola?

Yeah, probably a weak Cat 5. Not bad as long as it stays weak.

Would not that be academic at this point? Not much differance in catastrophic damage from a strong Cat 4 to weak Cat 5 . Just my thoughts. Comments welcomed.

Robert

[clfenwi]

Storm DENNIS: Observed By AF #308
Storm #04 in Atlantic Ocean1
Maximum Flight Level Winds Were 136KT (156.4mph 251.9km/h) In E Quadrant At 11:56:40 Z
Estimated Max Surface Winds 122.4KT (140.8mph 226.7km/h) *
Date/Time of Recon Report: Invalid Date (Invalid Date)
Position of the center: 21° 09' N 079° 43' W (21.1°N 79.7°W)

Surface Winds Were Estimated At: 95 KT (109.25MPH 175.9km/h)
Estimated Surface Winds Were Measured 005nm (5.75miles) From Center At Bearing 228°
Maximum Flight Level Winds Near Center Were 096KT (110.4mph 177.8km/h) From 314°
Maximum Flight Level Winds Were Measured 007nm (8.0 miles) From Center At Bearing 229°
Minimum pressure: 938mb (27.7in)
Eye Wall Was Characterized As Being: CLOSED WALL
Eye Form Was Characterized As Being Circular , 13nm (14.9 mi 24.1km) wide
Center Fix Established Using: Penetration Radar Wind Pressure Temperature
Center Fix Established At Level(s): Surface 700mb
Navigational Accuracy Measured At 0.02nm
Meteorological Accuracy Measured At 1nm
* = Estimated Surface Winds are assumed 90% of Max Flight Level Winds

OB 12

[cycloneye]

002
URNT12 KNHC 081359
VORTEX DATA MESSAGE
A. 08/13:23:30Z
B. 21 deg 09 min N
079 deg 43 min W
C. NA mb 2574 m
D. 95 kt
E. 228 deg 005 nm
F. 314 deg 096 kt
G. 229 deg 007 nm
H. 938 mb
I. 8 C/ 3066 m
J. 20 C/ 3072 m
K. 9 C/ NA
L. CLOSED WALL
M. C13
N. 12345/07
O. 0.02 / 1 nm
P. AF308 0804A DENNIS OB 12
MAX FL WIND 136 KT E QUAD 11:56:40 Z

[clfenwi]

Observation Number: 14
Time: 1357Z
Position: 22.7 North // 78.1 West
Flight Level: 3070 meters
Flight Level Winds: 55 knots // 150
700 millibar height: 3150 meters
Surface Winds: 50 knots // 130

[clfenwi]

Observation Number: 15
Time: 1409Z
Position: 22.6 North // 78.1 West
Sea Level Pressure: 1010 millibars
Surface wind speed and direction: 32 knots // 130
1000 millibar height: 85 meters
1000 millibar winds: 47 knots // 130
925 millibar height: 771 meters
925 millibar winds: 61 knots // 130
850 millibar height: 1502 meters
850 millibar winds: 58 knots // 145
700 millibar height: 3138 meters
700 millibar winds: 54 knots // 145

[clfenwi]

Storm: Storm DENNIS: Observed By AF #308
Storm #04 in Atlantic Ocean1
Maximum Flight Level Winds Were 136KT (156.4mph 251.9km/h) In E Quadrant At 11:56:40 Z
Estimated Max Surface Winds 122.4KT (140.8mph 226.7km/h) * (Report Time: 08/1409Z)
Max Inbound Flight Level Winds: 21.1N 79.8W 096KT (110.4MPH 177.8km/h) [12:54:20Z to 13:19:00Z]
Inbound Surface Wind Observed At 20KT (23MPH 37.0km/h) @ 310°
Max Outbound Flight Level Winds: 21.2N 79.6W 150KT (172.5MPH 277.8km/h) [13:27:50Z to 13:55:40Z]
Outbound Surface Wind Observed At 50KT (57.5MPH 92.6km/h) @ 130°
Data # Position Height Temp Dewpoint Wind
O01 20.0N 81.1W 700mb Height @ 3124m 9°C 8°C 026KT (29.9MPH 48.1 km/h) @ 300°
O02 20.1N 80.9W 700mb Height @ 3116m 9°C 5°C 023KT (26.45MPH 42.6 km/h) @ 300°
O03 20.3N 80.7W 700mb Height @ 3106m 8°C 8°C 030KT (34.5MPH 55.6 km/h) @ 290°
O04 20.5N 80.5W 700mb Height @ 3093m 8°C 8°C 031KT (35.65MPH 57.4 km/h) @ 320°
O05 20.7N 80.3W 700mb Height @ 3073m 8°C 8°C 041KT (47.15MPH 75.9 km/h) @ 310°
O06 20.8N 80.1W 700mb Height @ 3038m 8°C 8°C 047KT (54.05MPH 87.0 km/h) @ 310°
O07 21.0N 79.9W 700mb Height @ 2956m 9°C 9°C 055KT (63.25MPH 101.9 km/h) @ 310°
O01 21.3N 79.5W 700mb Height @ 2945m 11°C 9°C 099KT (113.85MPH 183.3 km/h) @ 150°
O02 21.5N 79.3W 700mb Height @ 3037m 8°C 8°C 076KT (87.4MPH 140.8 km/h) @ 150°
O03 21.7N 79.1W 700mb Height @ 3054m 7°C 7°C 072KT (82.8MPH 133.3 km/h) @ 150°
O04 21.9N 78.9W 700mb Height @ 3026m 8°C 8°C 057KT (65.55MPH 105.6 km/h) @ 150°
O05 22.0N 78.8W 700mb Height @ 3113m 8°C 8°C 053KT (60.95MPH 98.2 km/h) @ 150°
O06 22.2N 78.6W 700mb Height @ 3125m 8°C 8°C 054KT (62.1MPH 100.0 km/h) @ 140°
O07 22.4N 78.4W 700mb Height @ 3132m 8°C 7°C 043KT (49.45MPH 79.6 km/h) @ 140°
O08 22.6N 78.2W 700mb Height @ 3145m 8°C 6°C 055KT (63.25MPH 101.9 km/h) @ 140°
* = Estimated Surface Winds are assumed 90% of Max Flight Level Winds

OB 16

[Ola]

So strong 4/low 5?

Still tracking for Mobile/Pensacola?

Yeah, probably a weak Cat 5. Not bad as long as it stays weak.

Would not that be academic at this point? Not much differance in catastrophic damage from a strong Cat 4 to weak Cat 5 . Just my thoughts. Comments welcomed.

Robert

I was being sarcastic. Is there such a thing as a weak cat 5?

[Anonymous]

If surface winds are 90% of FL winds, does that mean that the max outbound of 150KTS translates to a surface of 135KTS?

Almost completely weather ignorant, so if this is a stupid ???, sorry.....

[Stratosphere747]

There is a MAJOR difference between cat4 and cat5 winds. I'll try to find the writeup on it, but for every increase of 5mph over 130 of something near that is incredible..

[clfenwi]

Observation Number: 17
Time: 1446Z
Position: 23.3 North // 81.9 West
Flight Level: 3080 meters
Flight Level winds: 30 knots // 060
700 millibar height: 3154 meters

[clfenwi]

Observation Number: 18
Time: 1453Z
Position: 23.3 North // 81.8 West
Sea Level Pressure: 1005 millibars
Surface wind speed and direction: 25 knots // 050
1000 millibar height: 44 meters
1000 millibar winds: 28 knots // 050
925 millibar height: 732 meters
925 millibar winds: 33 knots // 080
850 millibar height: 1466 meters
850 millibar winds: 34 knots // 080
700 millibar height: 3112 meters

[wxwatcher91]

000
URNT12 KNHC 081535
VORTEX DATA MESSAGE
A. 08/15:17:00Z
B. 21 deg 28 min N
080 deg 03 min W
C. 700 mb 2639 m
D. NA kt
E. deg nm
F. 043 deg 107 kt
G. 314 deg 006 nm
H. 937 mb
I. 9 C/ 3084 m
J. 20 C/ 3106 m
K. 9 C/ NA
L. CLOSED WALL
M. C12
N. 12345/ 7
O. 0.05 / 3 nm
P. AF308 0804A DENNIS OB 19
MAX FL WIND 150 KT NE QUAD 13:25:30 Z

[Scorpion]

This is 155 mph.

[clfenwi]

Storm DENNIS: Observed By AF #308
Storm #04 in Atlantic Ocean0
Date/Time of Recon Report: Invalid Date (Invalid Date)
Position of the center: 21° 28' N 080° 03' W (21.5°N 80.0°W)
Minimum Height Measured At Standard Level Of 700mb: 2639m (Normal: 3011)
Surface Winds Were: Not Estimated
Estimated Surface Winds Were Measured nm (0miles) From Center At Bearing °
Maximum Flight Level Winds Near Center Were 107KT (123.05mph 198.2km/h) From 043°
Maximum Flight Level Winds Were Measured 006nm (6.9 miles) From Center At Bearing 314°
Minimum pressure: 937mb (27.67in)
Eye Wall Was Characterized As Being: CLOSED WALL
Eye Form Was Characterized As Being Circular , 12nm (13.8 mi 22.2km) wide
Center Fix Established Using: Penetration Radar Wind Pressure Temperature
Center Fix Established At Level(s): 700mb
Navigational Accuracy Measured At 0.05nm
Meteorological Accuracy Measured At 3nm
* = Estimated Surface Winds are assumed 90% of Max Flight Level Winds