Alert archive / Arkansas / Red Flag Warnings in 2012

Red Flag Warning 4, NWS Memphis, TN

March 2, 20124 states

NWS Memphis, TN issued this red flag warning at Mar 2, 2012, 1:28 PM CST for 4 states. 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
Mar 2, 2012, 1:28 PM CST (19:28 UTC)
Expired
Mar 2, 2012, 6:00 PM CST
In force
5 hr
Issued by
NWS Memphis, TN
All 23 counties

Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lawrence County, AR, Lee County, AR, Mississippi County, AR, Phillips County, AR, Poinsett County, AR, Randolph County, AR, St. Francis County, AR, Dunklin County, MO, Pemiscot County, MO, Coahoma County, MS, DeSoto County, MS, Tunica County, MS, Dyer County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 44 km from the middle of the area, began a volume at 19:28 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

Little Rock, AR (KLZK), launched 12:00Z, 7.5 hours before the alert went out and 87 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, Little Rock, AR at 12:00Z on 2012-03-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1625 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, Little Rock, AR at 12:00Z on 2012-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 square meters per square second.1939587897117136Sfc1 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
1625 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
645 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
304 m²/s²
Significant tornado parameter
3.2
Supercell composite
11.9

Open this sounding in Storm Lab

The text

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

379 
WWUS84 KMEG 021928
RFWMEG

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
128 PM CST FRI MAR 2 2012

...RED FLAG WARNING IN EFFECT FOR EASTERN ARKANSAS...THE MISSOURI
BOOTHEEL...NORTHWEST MISSISSIPPI AND FAR WEST TENNESSEE FOR
DEVELOPING HIGH FIRE DANGER...

.WEST WINDS 15 TO 20 MPH WITH GUSTS OF 25 TO 35 MPH WILL OCCUR
BEHIND A COLD FRONT/DRYLINE MOVING INTO WESTERN PORTIONS OF THE
MIDSOUTH THIS AFTERNOON. THESE STRONG WINDS WILL BE ACCOMPANIED BY
TEMPERATURES IN THE 80S AND MINIMUM RELATIVE HUMIDITIES OF 18 TO
25 PERCENT. BY 6 PM... WINDS WILL DECREASE AND COOLER TEMPERATURES
WILL ARRIVE...INCREASING RELATIVE HUMIDITIES. 

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001-
007-010-TNZ001-002-019-048-049-088-030000-
/O.NEW.KMEG.FW.W.0004.120302T1928Z-120303T0000Z/
RANDOLPH-CLAY-LAWRENCE-GREENE-CRAIGHEAD-POINSETT-MISSISSIPPI-
CROSS-CRITTENDEN-ST. FRANCIS-LEE AR-PHILLIPS-DUNKLIN-PEMISCOT-
DESOTO-TUNICA-COAHOMA-LAKE-OBION-DYER-LAUDERDALE-TIPTON-SHELBY-
128 PM CST FRI MAR 2 2012

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING FOR STRONG 
AND GUSTY WINDS...LOW HUMIDITY...AND LOW FUEL MOISTURE FOR EASTERN
ARKANSAS...THE MISSOURI BOOTHEEL...NORTHWEST MISSISSIPPI AND FAR
WEST TENNESSEE...

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 6 PM CST THIS EVENING. 

* WIND... 15 TO 20 MPH WITH GUSTS OF 25 TO 35 MPH AT THE 20 FOOT LEVEL.

* HUMIDITY... 18 TO 25 PERCENT.

* 10 HOUR FUEL MOISTURE... 5 TO 7 PERCENT.

* 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...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

PWB
1 follow-up statement
808 
WWUS84 KMEG 022347
RFWMEG

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
547 PM CST FRI MAR 2 2012

...THE REDFLAG WARNING WILL BE ALLOWED TO EXPIRE AT 6PM...

.CONDITIONS PROMPTING THE REDFLAG WARNING NO LONGER ARE OCCURRING
ACROSS WESTERN PORTIONS OF THE MIDSOUTH AS CONTINUED COOLING HAVE
INCREASED RELATIVE HUMIDITIE'S TO ABOVE 30 PERCENT. THEREFORE THE
REDFLAG WARNING WILL BE ALLOWED TO EXPIRE.

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001-
007-010-TNZ001-002-019-048-049-088-030100-
/O.EXP.KMEG.FW.W.0004.000000T0000Z-120303T0000Z/
RANDOLPH-CLAY-LAWRENCE-GREENE-CRAIGHEAD-POINSETT-MISSISSIPPI-
CROSS-CRITTENDEN-ST. FRANCIS-LEE AR-PHILLIPS-DUNKLIN-PEMISCOT-
DESOTO-TUNICA-COAHOMA-LAKE-OBION-DYER-LAUDERDALE-TIPTON-SHELBY-
547 PM CST FRI MAR 2 2012

...RED FLAG WARNING WILL EXPIRE AT 6 PM CST THIS EVENING FOR
STRONG AND GUSTY WINDS...LOW HUMIDITY...AND LOW FUEL MOISTURE FOR
WESTERN PORTIONS OF THE MIDSOUTH.

$$

JAB

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 2, 2:50 AM CSTWind AdvisoryMEGClay, Craighead, Crittenden, Cross, Greene, Lawrence and 6 more15 hr
Mar 2, 4:13 AM CSTSpecial Weather StatementMEGCrockett, Gibson32 min
Mar 2, 2:31 PM CSTSevere Thunderstorm WarningMEGFayette, Hardeman, McNairy44 min
Mar 2, 2:33 PM CSTTornado WarningMEGCarroll, Gibson, Henderson, Madison27 min
Mar 2, 2:43 PM CSTTornado WarningMEGFayette, Hardeman32 min
Mar 2, 3:02 PM CSTSevere Thunderstorm WarningMEGChester, Henderson, Madison28 min
Mar 2, 3:05 PM CSTSevere Thunderstorm WarningMEGHardeman, McNairy23 min
Mar 2, 3:13 PM CSTTornado WarningMEGHardeman, McNairy32 min
Mar 2, 3:39 PM CSTSevere Thunderstorm WarningMEGHardin, McNairy36 min
Mar 2, 3:51 PM CSTSevere Thunderstorm WarningMEGFayette, Hardeman, McNairy39 min
Mar 2, 3:51 PM CSTTornado WarningMEGHardin24 min
Mar 2, 4:08 PM CSTSevere Thunderstorm WarningMEGChester, Hardeman, McNairy37 min
Mar 2, 4:28 PM CSTSevere Thunderstorm WarningMEGChester, Decatur, Hardin, Henderson, McNairy32 min
Mar 2, 4:45 PM CSTSevere Thunderstorm WarningMEGHardeman, McNairy30 min
Mar 2, 5:45 PM CSTSevere Thunderstorm WarningMEGHardin30 min
Mar 2, 1:33 PM CSTSevere Thunderstorm WarningMEGItawamba, Lee, Prentiss, Tishomingo42 min
Mar 2, 2:01 PM CSTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe44 min
Mar 2, 2:04 PM CSTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Lee, Pontotoc, Yalobusha41 min
Mar 2, 2:43 PM CSTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Itawamba, Lee, Monroe47 min
Mar 2, 3:09 PM CSTSevere Thunderstorm WarningMEGCoahoma, Panola, Quitman, Tallahatchie, Yalobusha51 min
Mar 2, 3:19 PM CSTTornado WarningMEGItawamba, Monroe26 min
Mar 2, 3:39 PM CSTSevere Thunderstorm WarningMEGTallahatchie, Yalobusha51 min
Mar 2, 3:42 PM CSTTornado WarningMEGItawamba, Monroe18 min
Mar 2, 3:44 PM CSTSevere Thunderstorm WarningMEGBenton, Lafayette, Marshall, Panola, Pontotoc, Union46 min
Mar 2, 4:01 PM CSTSevere Thunderstorm WarningMEGLafayette, Panola, Pontotoc, Tallahatchie, Union, Yalobusha44 min
Mar 2, 4:11 PM CSTSevere Thunderstorm WarningMEGBenton, Lafayette, Marshall, Tippah34 min
Mar 2, 4:28 PM CSTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Lee, Pontotoc47 min
Mar 2, 4:40 PM CSTSevere Thunderstorm WarningMEGLafayette, Lee, Pontotoc, Tippah, Union50 min
Mar 2, 4:49 PM CSTSevere Thunderstorm WarningMEGBenton, Marshall, Tippah26 min
Mar 2, 4:52 PM CSTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Pontotoc, Yalobusha23 min
Mar 2, 4:57 PM CSTTornado WarningMEGCalhoun, Yalobusha18 min
Mar 2, 5:13 PM CSTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc47 min
Mar 2, 5:16 PM CSTSevere Thunderstorm WarningMEGAlcorn, Lee, Prentiss, Tippah, Tishomingo, Union44 min
Mar 2, 5:33 PM CSTTornado WarningMEGChickasaw, Monroe27 min
Mar 2, 5:51 PM CSTTornado WarningMEGItawamba, Monroe24 min
Mar 2, 5:55 PM CSTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe50 min

Nearby

Red Flag Warnings in Arkansas, 2012Red Flag Warnings in Tennessee, 2012Red Flag Warnings in Mississippi, 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.