Northern Alabama - Decatur - Priceville


Daily Weather Charts

Severe/Hazardous Weather, Huntsville Office, National Weather Service
Storm Prediction Center, NCEP, NWS


Current Conditions Activity Chart
Lower Mississippi Valley Sector Radar

National Infrared Satellite Image

National Water Vapor Satellite Image


SE US Satellite Image

Gulf Coast IR image from GOES

Gulf Coast

Gulf of Mexico IR Image from GOES

Gulf of Mexico

Florida IR image from GOES


East Coast IR image from GOES

East Coast


250 mb Upper Air Map


Huntsville, AL, Skew-T Sounding Chart

Station KEET in Birmingham, AL




Sounding for Decatur, AL



Sounding variables, indices, parcel values

Y / N - CAPE ( Convective available potential energy): Greater than 1,500? Greater than 2,500?

Y / N - CINH (Convective inhibition): Greater than 51? Greater than 200?

PW    - Precipitable Water (i.e., the amount of moisture in the troposphere)

Y / N - Total Totals Index (TT): Greater than 53? Greater than 56?

Y / N - K Index (KI): Greater than 26? Greater than 40?

Y / N - Lifted Index (LI): Less than -4? Less than -8?

Y / N - Showalter Index (SI): Less than -4? Less than -8?

Y / N - SWEAT Index (Severe Weather Threat Index): Greater than 300? Greater than 400?

LCL   - Lifting Condensation Level. This is the level at which a lifted parcel becomes saturated, and is a reasonable estimate of cloud base height when air parcels experience forced ascent.


PW - Moisture Content:

0.50 inches or less = Very low
0.50 to 1.25 inches = Low
1.25 to 1.75 inches = Moderate
1.75 to 2.00 inches = High
2.00 inches or above = Very high

Dew Point

Greater than 75 = Very high

65-74 = High

55-64 = Moderate

Less than 55 = Low

Low Level Jet

Greater than 70 knots = Extremely high

50-69 = Very high

30-49 = High

20-29 = Moderate

Less than 20 = Low


Additional Variables to Watch: Vertical Wind Shear, Veering, Mid-level Cap, Helicity.

See also SKEW-T for Birmingham, AL.

See generally "Getting to Know the SKEW-T Parameters" by meteorologist Jeff Haby.


Mesoscale Analysis Page Mesoscale Discussion


Southeast Sector - Storm Prediction Center Mesoanalysis Sectors



National Weather Hazards

National Weather Hazards


Thunderstorm Outlook Atlantic Tropical Cyclone Activity


Thunderstorm Outlook - 16Z-20Z


Thunderstorm Outlook - 20Z-00Z


Thunderstorm Outlook - 00Z-04Z



National Forecast Map Quantitative Precipitation Forecast

24 Hour Forecast  | 48 Hour Forecast | 3 Day | 4 Day | 5 Day | 6 Day

Day 2 Precipitation Forecast | Day 3 Precipitation Forecast


Graphical Forecast for North Alabama Graphical Forecast for North Alabama




Hazardous Weather Outlook


Area Forecast Discussion


Day One Convective Outlook



A few of the additional weather pages on this web site:

Huntsville Weather Forecast Office, National Weather Service

Storm Prediction Center: Watches, Mesoscale Discussions, Outlooks


Amateur Radio Fact of the Day



SKYWARN Storm Spotter

American Radio Relay League


Amateur Radio Emergency Service