Recon Reports Dennis

[clfenwi]

Observation Number: 20
Time: 1535Z
Position: 21.5 North // 80.1 West
Sea Level Pressure: 961 millibars
Surface wind speed and direction: n/a
925 millibar height: 339 meters
925 millibar winds: 107 knots // 330
850 millibar height: 1077 meters
850 millibar winds: 113 knots // 350
700 millibar height: 2742 meters
eywall

[wxwatcher91]

we have ourselves a cat 5

[clfenwi]

Observation Number: 21
Time:1539Z
Position: 21.5 North // 80.0 West
Sea Level Pressure: 937 millibars
Surface wind speed and direction: 36 knots // 165
925 millibar height: 116 meters
925 millibar winds: 33 knots // 180
850 millibar height: 863 meters
850 millibar winds: 28 knots // 195
700 millibar height: 2561 meters
700 millibar winds: 10 knots // 225

corrected longitude

[Scorpion]

Not quite, but very borderline.

[wxwatcher91]

well wind-wise the definition of a cat 5 hurricane is greater than 155mph... 150kt at FL is 155.5 lol

[wxcrazytwo]

Do we or do we not have a CAT5?

[smashmode]

Will Dennis get retired? Or too early to tell?

[Scorpion]

NHC wont upgrade as it will weaken soon, but its very borderline and just makes it into Cat 5 territory.

[gkrangers]

Will Dennis get retired? Or too early to tell?

Absolutely.

Well, now that the eye is coming over land, theres no chance of it being upgraded to a Category 5.

[clfenwi]

Observation number: 22
Time: 1556Z
Position: 20.2 North // 78.6 West
Flight level: 3070 meters
Flight Level winds: 47 knots // 190

[clfenwi]

Observation Number: 23
Time: 1636Z
Position: 23.0 North 78.9 West
Flight Level: 3050 meters
Flight Level winds: 49 knots // 150





[Thunder44]

There's no info from recon that I've seen yet that suggests this is a Cat 5.

[clfenwi]

Time: 1649Z
Position: 23.0 N // 78.9 W
Sea Level Pressure: 1008 millibars
Surface wind speed and direction: 40 knots // 120
1000 millibar height: 74 meters
1000 millibar winds 41 knots // 115
925 millibar height: 761 meters
925 millibar winds: 56 knots // 120
850 millibar height: 1491 meters
850 millibar winds: 70 knots // 140
700 millibar height: 3129 meters
700 millibar winds: 49 knots // 150

[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° 51' N 080° 23' W (21.9°N 80.4°W)

Surface Winds Were Estimated At: 90 KT (103.5MPH 166.7km/h)
Estimated Surface Winds Were Measured 005nm (5.75miles) From Center At Bearing 057°
Maximum Flight Level Winds Near Center Were 129KT (148.35mph 238.9km/h) From 147°
Maximum Flight Level Winds Were Measured 005nm (5.8 miles) From Center At Bearing 057°
Minimum pressure: 941mb (27.79in) -- Extrapolated
Eye Wall Was Characterized As Being: CLOSED WALL
Eye Form Was Characterized As Being Circular , 10nm (11.5 mi 18.5km) 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 25

[wxwatcher91]

000
URNT12 KNHC 081722
VORTEX DATA MESSAGE
A. 08/17:06:40Z
B. 21 deg 51 min N
080 deg 23 min W
C. NA mb 2594 m
D. 90 kt
E. 057 deg 005 nm
F. 147 deg 129 kt
G. 057 deg 005 nm
H. EXTRAP 941 mb
I. 9 C/ 3071 m
J. 19 C/ 3063 m
K. 9 C/ NA
L. CLOSED WALL
M. C10
N. 12345/07
O. 0.02 / 1 nm
P. AF308 0804A DENNIS OB 25
MAX FL WIND 129 KT NE QUAD 17:05:00 Z

[Scorpion]

Expected weakening as it makes landfall.

[canegrl04]

Met on CNN says don't expect Dennis to weaken much over land.

[clfenwi]

Observation Number: 26
Time: 1725Z
Position: 21.8 North // 80.4 West
Sea Level Pressure: 941 millibars
Surface wind speed and direction: 24 knots // 230
925 millibar height: 156 meters
925 millibar winds: 24 knots // 220
850 millibar height: 907 meters
850 millibar winds: 17 knots // 275
700 millibar height: 2604 meters
700 millibar winds: 16 knots // 305

eye

[Gorky]

It does have a reasonable mountain range to make its way over in the next hour or so. After that its pretty much flat all the way to the GOM...

[clfenwi]

Observation Number: 27
Time: 1726Z
Position: 21.9 North // 80.3 West
Sea Level Pressure: 955 millibars
Surface wind speed and direction: 114 knots // 335
925 millibar height: 284 meters
925 millibar winds: 120 knots // 350
850 millibar height: 1017 meters
850 millibar winds: 132 knots // 035
700 millibar height: 2678 meters
700 millibar winds: 102 knots // 150

eyewall