Alert archive / Alabama / Red Flag Warnings in 2012

Red Flag Warning 13, NWS Huntsville, AL

June 26, 2012Colbert County, Lauderdale County, Limestone County, Alabama

NWS Huntsville, AL issued this red flag warning at Jun 26, 2012, 6:22 AM CDT for Colbert County, Lauderdale County, Limestone County, Alabama. It took effect at Jun 26, 2012, 12:00 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
Jun 26, 2012, 6:22 AM CDT (11:22 UTC)
In effect from
Jun 26, 2012, 12:00 PM CDT
Expired
Jun 26, 2012, 5:00 PM CDT
In force
5 hr
Issued by
NWS Huntsville, AL

Counties Colbert County, AL, Lauderdale County, AL, Limestone County, AL

The radar

The Columbus AFB radar (KGWX), 127 km from the middle of the area, began a volume at 11:20 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

Nashville Metro, TN (KBNA), launched 00:00Z, 11.4 hours before the alert went out and 168 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.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2012-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 319 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2012-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
319 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1922 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

911 
WWUS84 KHUN 261122
RFWHUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE HUNTSVILLE AL
622 AM CDT TUE JUN 26 2012

...RED FLAG WARNING IN EFFECT FROM NOON TO 5 PM CDT TODAY FOR
LAUDERDALE, COLBERT, AND LIMESTONE COUNTIES FOR THE COMBINATION OF
STRONG WINDS AND LOW RELATIVE HUMIDITY...

ALZ001-002-005-262200-
/O.UPG.KHUN.FW.A.0005.120626T1800Z-120627T0000Z/
/O.NEW.KHUN.FW.W.0013.120626T1700Z-120626T2200Z/
LAUDERDALE-COLBERT-LIMESTONE-
622 AM CDT TUE JUN 26 2012

...RED FLAG WARNING IN EFFECT FROM NOON TO 5 PM CDT TODAY FOR
LAUDERDALE, COLBERT, AND LIMESTONE COUNTIES FOR THE COMBINATION OF
STRONG WINDS AND LOW RELATIVE HUMIDITY...

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 5 PM CDT THIS
AFTERNOON. THIS RED FLAG WARNING REPLACES THE FIRE WEATHER WATCH WAS
PREVIOUSLY IN EFFECT.

* AFFECTED AREA...LAUDERDALE...COLBERT...AND LIMESTONE COUNTIES.

* TIMING...NOON TO 5 PM CDT TODAY.

* RELATIVE HUMIDITY...VALUES WILL FALL TO AROUND 30 PERCENT BY NOON
  AND RANGE FROM 25-30 PERCENT FOR MOST OF THE AFTERNOON. VALUES
  WILL IMPROVE TO 30-35 PERCENT BY DUSK.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY.
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE
EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG
WINDS AND LOW RELATIVE HUMIDITY WILL INCREASE FIRE GROWTH POTENTIAL.

&&

$$

70/DD
2 follow-up statements
223 
WWUS84 KHUN 261822 AAA
RFWHUN

URGENT - FIRE WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
122 PM CDT TUE JUN 26 2012

...RED FLAG WARNING IN EFFECT UNTIL 5 PM CDT TODAY FOR
LAUDERDALE...COLBERT...AND LIMESTONE COUNTIES FOR THE 
COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITY...

ALZ001-002-005-262200-
/O.CON.KHUN.FW.W.0013.000000T0000Z-120626T2200Z/
LAUDERDALE-COLBERT-LIMESTONE-
122 PM CDT TUE JUN 26 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM CDT THIS
AFTERNOON FOR LAUDERDALE...COLBERT...AND LIMESTONE COUNTIES FOR THE
COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITY...

* AFFECTED AREA...LAUDERDALE...COLBERT...AND LIMESTONE COUNTIES.

* TIMING...UNTIL 5 PM CDT TODAY.

* RELATIVE HUMIDITY...VALUES WILL CONTINUE TO FALL TO BETWEEN 25 AND
  30 PERCENT FOR MOST OF THE AFTERNOON. RH VALUES WILL THEN IMPROVE
  TO 30-35 PERCENT BY DUSK.

* IMPACTS...LOW RELATIVE HUMIDITY VALUES COMBINED WITH PERIODIC WIND
  GUSTS ABOVE 15 MPH AND 20 FOOT WINDS FROM 10 TO 15 MPH WILL ALLOW
  ANY FIRES THAT DEVELOP TO LIKELY SPREAD RAPIDLY. OUTDOOR BURNING
  IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS AND LOW RELATIVE HUMIDITY WILL INCREASE FIRE GROWTH
POTENTIAL.

&&

$$

CCC
615 
WWUS84 KHUN 262206
RFWHUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE HUNTSVILLE AL
506 PM CDT TUE JUN 26 2012

...RED FLAG WARNING HAS BEEN EXTENDED UNTIL 7 PM CDT FOR
LAUDERDALE...COLBERT AND LIMESTONE COUNTIES...

ALZ001-002-005-270000-
/O.EXP.KHUN.FW.W.0013.000000T0000Z-120626T2200Z/
/O.NEW.KHUN.FW.W.0014.120626T2206Z-120627T0000Z/
LAUDERDALE-COLBERT-LIMESTONE-
506 PM CDT TUE JUN 26 2012

...RED FLAG WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR LOW
HUMIDITY FOR LAUDERDALE...COLBERT AND LIMESTONE COUNTIES...

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE IS CONTINUING A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING.

* TIMING...UNTIL 7 PM CDT TODAY.

* RELATIVE HUMIDITY...VALUES WILL CONTINUE TO REMAIN BETWEEN 25 AND
  30 PERCENT INTO EARLY THIS EVENING. 

* IMPACTS...LOW RELATIVE HUMIDITY VALUES COMBINED WITH PERIODIC
  WIND GUSTS ABOVE 15 MPH AND 20 FOOT WINDS FROM 10 TO 15 MPH 
  WILL ALLOW ANY FIRES THAT DEVELOP TO LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS AND LOW RELATIVE HUMIDITY WILL INCREASE FIRE GROWTH
POTENTIAL.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY
OVER A PROLONGED PERIOD WILL INCREASE FIRE GROWTH POTENTIAL.

&&

$$

ALZ003-004-006>010-016-270000-
/O.NEW.KHUN.FW.W.0014.120626T2206Z-120627T0000Z/
FRANKLIN AL-LAWRENCE-MADISON-MORGAN-MARSHALL-JACKSON-DEKALB-
CULLMAN-
506 PM CDT TUE JUN 26 2012

...RED FLAG WARNING IS IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR LOW
HUMIDITY FOR FRANKLIN...LAWRENCE...MADISON...MORGAN...MARSHALL...JACKSON...DEKALB
AND CULLMAN COUNTIES...

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE IS CONTINUING A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING.

* AFFECTED AREA... FRANKLIN AL...LAWRENCE...MADISON...MORGAN... 
  MARSHALL...JACKSON...DEKALB...AND CULLMAN COUNTIES. 

* TIMING...UNTIL 7 PM CDT TODAY.

* RELATIVE HUMIDITY...VALUES WILL CONTINUE TO REMAIN BETWEEN 25 AND
  30 PERCENT INTO EARLY THIS EVENING.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY
OVER A PROLONGED PERIOD WILL INCREASE FIRE GROWTH POTENTIAL.

&&

$$

TT

The office that day

Everything else NWS Huntsville, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 5:06 PM CDTRed Flag WarningHUNColbert, Cullman, DeKalb, Franklin, Jackson, Lauderdale and 5 more114 min

Nearby

Red Flag Warnings in Alabama, 2012Every red flag warning in 2012

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.