Dec 18 - NAM forecast for Whitwell
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  18z Text Description 21z Text Description
Thermal Updraft Velocity (fpm)
87
Unuseable
75
Unuseable
Surface Heating (W/m2)
15
More Heating, Better Thermals
4
More Heating, Better Thermals
Top of Usable Lift (MSL)
1391
-909 Feet Over Launch
1391
-909 Feet Over Launch
Thermal Tops (MSL)
2014
-286 Feet Over Launch
2753
453 Feet Over Launch
Height Variability (Feet)
804
Thermal Tops 804 ft higher if 4° Warmer Than Forecast
161
Thermal Tops 161 ft higher if 4° Warmer Than Forecast
B/S Ratio
2
Exceptionally Rough
2
Exceptionally Rough
BL Wind Speed (mph)
10
Average Speed, Ground to Thermal Tops
10
Average Speed, Ground to Thermal Tops
BL Wind Direction (°)
249
Launch at Keel
260
Good Chilhowee Day
Cumulus Potential
0
No Data
768
Good Cottonball Cumulus
Cumulus Base (MSL)
2014
-286 Feet Over Launch
1985
-315 Feet Over Launch
Overdevelopment Potential
-9888
No Overdevelopment Risk
447
Mild Overdevelopment Risk
Max Relative Humidity (%) 98High Values Promote Extensive Clouds 98 High Values Promote Extensive Clouds
Convective Available Potential Energy (J/kg)
0
No Storm Potential
5
No Storm Potential
Surface Temperature at 2 meters (° F) 45Better Soaring If Warmer 47 Better Soaring If Warmer

   RUC Data Not Yet Available
Click Images for Larger Size
Skew-T, Updated 8:44 AM Thu Dec 14
Visible Satellite, updated 16:15 PM Mon May 9
Visible Animated Loop
IR Satellite, updated 16:00 PM Mon May 9
IR Animated Loop

Altitude Analysis from MAPS Forecast for Whitwell on Sun Dec 17

18z 21z
Altitude MSL (ft) Wind Direction (°) Wind Speed (mph) Temperature (F)
Altitude MSL (ft) Wind Direction (°) Wind Speed (mph) Temperature (F)