danielwAdministrator
(Moderator)
Sun Jul 13 2008 01:18 PM
Bertha Vortex Message

Despite the visible presentation of Tropical Storm Bertha the Hurricane Hunters are finding that she still has some hurricane force wind speeds in the NW quadrant.

Storm BERTHA: Observed By Air Force #307
Storm #02 in Atlantic Ocean
Maximum Flight Level Winds Were 68KT (78.2mph 125.9km/h) In NW Quadrant At 16:17:30 Z
Estimated Max Surface Winds 61.2KT (70.4mph 113.3km/h) *
Date/Time of Recon Report: Sunday, July 13, 2008 11:36:00 AM (Sun, 13 Jul 2008 16:36:00 UTC)
Position of the center: 29° 53' N 062° 50' W (29.9°N 62.8°W) [See Map]
Minimum Height Measured At Standard Level Of 700mb: 2981m (Normal: 3011)
Surface Winds Were Estimated At: 47KT (54.05MPH 87.0km/h)
Estimated Surface Winds Were Measured 66nm (75.9miles) From Center At Bearing 309°
Maximum Flight Level Winds Near Center Were 68KT (78.2mph 125.9km/h) From 043°
Maximum Flight Level Winds Were Measured 66nm (75.9 miles) From Center At Bearing 309°
Minimum pressure: 991mb (29.26in)
Eye Wall Characterization Not Reported
Eye Did Not Have A Definable Form or was not reported
Center Fix Established Using: Penetration Radar Wind Pressure Temperature
Center Fix Established At Level(s): 700mb
Navigational Accuracy Measured At 0.02nm
Meteorological Accuracy Measured At 1nm
* = Estimated Surface Winds are assumed 90% of Max Flight Level Winds