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Posted on 08/16/2007 4:43:17 AM PDT by NautiNurse
Hurricane warnings have been issued for Dominica and St. Lucia as Hurricane Dean races westward into the Caribbean Sea at 24mph. This motion should bring the center of Dean near the Lesser Antilles on Friday. The increased forward speed of the storm has lessened preparation time for Caribbean Islands in its path. Hurricane Dean has favorable conditions to develop into a major hurricane over the next several days.
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Hurricane City
Category | Wind Speed | Barometric Pressure | Storm Surge | Damage Potential |
---|---|---|---|---|
Tropical Depression |
< 39 mph < 34 kts |
Minimal | ||
Tropical Storm |
39 - 73 mph 34 - 63 kts |
Minimal | ||
Hurricane 1 (Weak) |
74 - 95 mph 64 - 82 kts |
28.94" or more 980.02 mb or more |
4.0' - 5.0' 1.2 m - 1.5 m |
Minimal damage to vegetation |
Hurricane 2 (Moderate) |
96 - 110 mph 83 - 95 kts |
28.50" - 28.93" 965.12 mb - 979.68 mb |
6.0' - 8.0' 1.8 m - 2.4 m |
Moderate damage to houses |
Hurricane 3 (Strong) |
111 - 130 mph 96 - 112 kts |
27.91" - 28.49" 945.14 mb - 964.78 mb |
9.0' - 12.0' 2.7 m - 3.7 m |
Extensive damage to small buildings |
Hurricane 4 (Very strong) |
131 - 155 mph 113 - 135 kts |
27.17" - 27.90" 920.08 mb - 944.80 mb |
13.0' - 18.0' 3.9 m - 5.5 m |
Extreme structural damage |
Hurricane 5 (Devastating) |
Greater than 155 mph Greater than 135 kts |
Less than 27.17" Less than 920.08 mb |
Greater than 18.0' Greater than 5.5m |
Catastrophic building failures possible |
NHC 9:35 update: winds now at 145 Cat. 4
What’s a GDFL?
Corrected pressure is 937 mb. That's the second time we've had a garbled pressure out of the vortex data report today. The rest of the data is the same, however.
LOL...He’s dead, Jim. ;o)
I wonder if Gramma will use the phrase “stable condition”. :-)
Not enough to suit me yet. It’s going to have to take a left turn somewhere to keep the rain away.
The way he’s bombing up, he might hit cat 5 tonight.
bump
So, that was from 946 to 937? What time period?
I have puter problems keeping me from going to the usual weather spots I haunt, so have to rely on the thread info.
As NN said, it's still a bit high for a Cat 5, but we've still got a couple hours in the day and a lot more overnight. Worse, we've got nice, hot waters.
I believe the term “GDFL” came into the lexicon about the same time as “hanging chads” did.
However, the GFDL is a computer model for tropical weathercasting.
Sorry, just being silly!
CNN says La. has declared a state of emergency?
Yeah, I’m watching for 920’s.
Conditions at 42059 as of 0150 GMT on 08/18/2007: | ||
Wind Direction (WDIR): | NNE ( 20 deg true ) | |
Wind Speed (WSPD): | 27.2 kts | |
Wind Gust (GST): | 36.9 kts | |
Wave Height (WVHT): | 13.1 ft | |
Dominant Wave Period (DPD): | 9 sec | |
Average Period (APD): | 6.5 sec | |
Atmospheric Pressure (PRES): | 29.75 in | |
Pressure Tendency (PTDY): | -0.03 in ( Falling ) | |
Air Temperature (ATMP): | 83.7 °F | |
Water Temperature (WTMP): | 83.8 °F | |
Dew Point (DEWP): | 73.9 °F | |
Heat Index (HEAT): | 90.5 °F | |
Combined plot of Wind Speed, Gust, and Air Pressure |
I want a burial (preferably right as Dean stalls over Havana and sits there for a couple days to weaken).
Heh heh. Kids in NOLA are already stealing buses!
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