Alert archive / Alabama / Red Flag Warnings in 2010
Red Flag Warning 21, NWS Huntsville, AL
NWS Huntsville, AL issued this red flag warning at Oct 2, 2010, 3:24 AM CDT for 8 counties in Alabama. It took effect at Oct 2, 2010, 1:00 PM CDT. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 2, 2010, 3:24 AM CDT (08:24 UTC)
- In effect from
- Oct 2, 2010, 1:00 PM CDT
- Expired
- Oct 2, 2010, 6:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS Huntsville, AL
Counties Colbert County, AL, Cullman County, AL, Franklin County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Morgan County, AL
The radar
The Northeast Alabama radar (KHTX), 112 km from the middle of the area, began a volume at 08:23 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 8.4 hours before the alert went out and 162 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2643 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- -41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
735 WWUS84 KHUN 020824 RFWHUN URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE HUNTSVILLE AL 324 AM CDT SAT OCT 2 2010 ALZ001>007-016-021630- /O.NEW.KHUN.FW.W.0021.101002T1800Z-101002T2300Z/ LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- CULLMAN- 324 AM CDT SAT OCT 2 2010 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM CDT THIS EVENING. DRY CONDITIONS WILL CONTINUE AGAIN THIS AFTERNOON AND POSE A THREAT FOR FIRE HAZARDS. RELATIVE HUMIDITY VALUES WILL DIP INTO THE UPPER 20S THIS AFTERNOON ACROSS NORTHWEST ALABAMA AND WINDS WILL BE NEAR 10 KTS. THIS COMBINATION OF MARGINALLY WINDY CONDITIONS AND LOW RELATIVE HUMIDITY WILL INCREASE FIRE GROWTH POTENTIAL ACROSS THE WARNED AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THOSE INVOLVED IN OUTDOOR BURNING ACTIVITIES SHOULD EXERCISE CAUTION THIS AFTERNOON. && $$ CCC
2 follow-up statements
529 WWUS84 KHUN 021529 RFWHUN URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE HUNTSVILLE AL 1029 AM CDT SAT OCT 2 2010 ALZ001>007-016-022300- /O.CON.KHUN.FW.W.0021.101002T1800Z-101002T2300Z/ LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- CULLMAN- 1029 AM CDT SAT OCT 2 2010 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING. DRY CONDITIONS WILL CONTINUE AGAIN THIS AFTERNOON AND PRODUCE HAZARDOUS BURNING CONDITIONS. RELATIVE HUMIDITY VALUES WILL DIP LOWER THAN 30 PERCENT THIS AFTERNOON ACROSS NORTHWEST ALABAMA AND WINDS WILL BE NEAR 10 MPH. THIS COMBINATION OF MARGINALLY WINDY CONDITIONS AND LOW RELATIVE HUMIDITY WILL INCREASE FIRE GROWTH POTENTIAL ACROSS THE WARNED AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THOSE INVOLVED IN OUTDOOR BURNING ACTIVITIES SHOULD EXERCISE CAUTION THIS AFTERNOON. && $$ 20
117 WWUS84 KHUN 022259 RFWHUN URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE HUNTSVILLE AL 559 PM CDT SAT OCT 2 2010 ALZ001>007-016-030000- /O.EXP.KHUN.FW.W.0021.000000T0000Z-101002T2300Z/ LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- CULLMAN- 559 PM CDT SAT OCT 2 2010 ...RED FLAG WARNING WILL EXPIRE AT 6 PM CDT THIS EVENING... WINDS ACROSS THE REGION HAVE DIMINISHED BELOW 10 MPH. THIS TREND WILL CONTINUE INTO THE EARLY EVENING...WITH RELATIVE HUMIDITIES RISING ABOVE 30 PERCENT BY DUSK. THEREFORE...THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 6 PM. $$ RSB
Nearby
Red Flag Warnings in Alabama, 2010Every red flag warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.