Alert archive / Arkansas / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 272, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Sep 28, 2005, 6:53 PM CDT for Howard County, Sevier County, Arkansas. It was in force for 67 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 28, 2005, 6:53 PM CDT (23:53 UTC)
- Expired
- Sep 28, 2005, 8:00 PM CDT
- In force
- 67 min
- Issued by
- NWS Shreveport, LA
- Area
- Counties, with a storm outline in the text
Counties Howard County, AR, Sevier County, AR
The radar
The Western Arkansas radar (KSRX), 141 km from the middle of the area, began a volume at 23:54 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
Shreveport, LA (KSHV), launched 12:00Z, 11.9 hours before the alert went out and 177 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
- 242 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 988 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 171 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 28, 2:56 PM CDT, 3 hours 57 minutes earlier.
Area forecast discussion, Sep 28, 2:56 PM CDT, 3 hours 57 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 256 PM CDT WED SEP 28 2005 .DISCUSSION... COLD FRONT APPEARS TO BE MAKING GOOD PROGRESS THROUGH CENTRAL OKLAHOMA THIS MID AFTERNOON. STILL VERY LIMITED CONVECTION ALONG THE FRONT....BUT MOISTURE ALONG THE FRONT HAS BEEN LIMITED THUS FAR. DEVELOPMENT IN CWA STILL LOOKS TO BE LATE AFTERNOON OVER SOUTHEAST OKLAHOMA AND WESTERN ARKANSAS. THEN EARLY EVENING HOURS FOR NORTHEAST TEXAS AND MID TO LATE EVENING HOURS FOR ALL OF NORTH LOUISIANA. THREAT FOR SEVERE STORMS REMAINS LIKELY WITH GOOD HEATING ALL AFTERNOON AND DEWPOINTS RUNNING IN THE LOW TO MID 70S CURRENTLY. POTENTIAL SEVERE CRITERIA FOR WIND AND HAIL REMAINS A POSSIBILITY WITH DEVELOPING SURFACE BASED CONVECTION INTO THE EARLY EVENING...AND THEN CARRYING INTO THE NIGHT AND ACROSS CWA WITH THE DEVELOPMENT OF A GOOD PRE FRONTAL TROUGH. ACTIVITY SHOULD NOT LINGER ANYWHERE...SO FLOODING SHOULD NOT BE A CONCERN. OVERNIGHT THE SEVERE THREAT WILL BE DIMINISHING...WITH THUNDERSTORM CONTINUING SOUTHEASTWARD ALONG THE FRONT. COLD AIR ADVECTION GOOD AT LOWER LEVELS SHOULD EVENTUALLY CLEAR SKIES FOR MOST OF AREA...BUT EVEN IN THE FACE OF SEPTEMBER SUNSHINE THE HIGHS SHOULD BE NEARLY 20 DEGREES COOLER THIS TIME TOMORROW. WINDS WILL BEGIN TO SUBSIDE INTO TOMORROW NIGHT...BUT MAY NOT LAY DOWN UNTIL RIGHT AT DAWN FRIDAY MORNING. SO...RADIATION COOLING COULD BE BETTER...BUT STILL LOOKING AT BELOW SEASONAL LOWS FOR NEXT COUPLE OF MORNINGS. SLIGHT BIT OF RIDGING INTO THE WEEKEND SHOULD ALLOW FOR TEMPS TO WARM BACK TO SEASONAL RANGES FOR WEEKEND. PUT IN SLIGHT CHANCE FOR MOST AREAS SUNDAY WITH A SHORT WAVE ACROSS ARKANSAS...AND GFS SHOWING A FAIR AMOUNT OF ACTIVITY PERHAPS PUSHING IN OFF THE GULF. EXPECT A DRY START TO THE WORK WEEK AS RIDGE BUILDS AHEAD OF NEXT COOL FRONT DUE IN AROUND MIDWEEK TIME FRAME. && .PRELIMINARY POINT TEMPS/POPS... SHV 64 77 54 83 / 60 20 0 0 MLU 64 75 51 81 / 60 20 0 0 DEQ 59 76 47 81 / 60 10 0 0 TXK 61 76 51 81 / 60 10 0 0 ELD 60 74 48 82 / 60 10 0 0 TYR 65 79 55 83 / 60 20 0 0 GGG 64 78 54 83 / 60 20 0 0 LFK 67 79 57 85 / 60 40 0 0 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...NONE. LA...NONE. OK...NONE. TX...NONE. && 13/24
Hazardous weather outlook, Sep 28, 12:00 PM CDT, 6 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1200 PM CDT WED SEP 28 2005 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-291100- ANGELINA-BIENVILLE-BOSSIER-BOWIE-CADDO-CALDWELL-CAMP-CASS-CHEROKEE- CLAIBORNE-COLUMBIA-DE SOTO-FRANKLIN-GRANT-GREGG-HARRISON-HEMPSTEAD- HOWARD-JACKSON-LA SALLE-LAFAYETTE-LINCOLN-LITTLE RIVER-MARION- MCCURTAIN-MILLER-MORRIS-NACOGDOCHES-NATCHITOCHES-NEVADA-OUACHITA- PANOLA-RED RIVER LA-RED RIVER TX-RUSK-SABINE LA-SABINE TX- SAN AUGUSTINE-SEVIER-SHELBY-SMITH-TITUS-UNION AR-UNION LA-UPSHUR- WEBSTER-WINN-WOOD- 1200 PM CDT WED SEP 28 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OKLAHOMA...NORTHEAST TEXAS...SOUTHWEST ARKANSAS...NORTHWEST...AND NORTH CENTRAL LOUISIANA. .DAY ONE...THIS AFTERNOON AND TONIGHT... A STRONG COLD FRONT WILL BE ENTERING THE MIDDLE RED RIVER VALLEY COUNTRY OF NORTHEAST TEXAS...SOUTHEAST OKLAHOMA...SOUTHWEST ARKANSAS THIS EVENING. STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE ALONG AND AHEAD OF THIS FEATURE TONIGHT. PRIMARY SEVERE THREAT LATER TONIGHT WILL BE STRONG AND DAMAGING WIND GUST WITH A MARGINAL HAIL THREAT. AFTER MIDNIGHT...WHILE SHOWERS AND THUNDERSTORMS WILL BE ONGOING ACROSS THE REGION...THE SEVERITY OF THE ACTIVITY SHOULD BEGIN TO WEAKEN AS THE COLD FRONT BEGINS TO PRESS INTO EAST CENTRAL TEXAS AND NORTH CENTRAL LOUISIANA. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND STORM SPOTTERS...MAY BE NEEDED TONIGHT. 13/24
Nearby
Severe Thunderstorm Warnings in Arkansas, 2005Every severe thunderstorm warning in 2005
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.