Alert archive / Arkansas / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 263, NWS Little Rock, AR

August 15, 2005Baxter County, Izard County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Aug 15, 2005, 7:16 PM CDT for Baxter County, Izard County, Arkansas. It was in force for 44 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
Aug 15, 2005, 7:16 PM CDT (00:16 UTC)
Expired
Aug 15, 2005, 8:00 PM CDT
In force
44 min
Issued by
NWS Little Rock, AR
Area
Counties, with a storm outline in the text

Counties Baxter County, AR, Izard County, AR

The radar

The Little Rock radar (KLZK), 151 km from the middle of the area, began a volume at 00:17 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

Springfield, MO (KSGF), launched 00:00Z, 0.3 hours before the alert went out and 169 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, Springfield, MO at 00:00Z on 2005-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 406 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2005-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939Sfc1 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
406 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
706 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Little Rock, AR wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 15, 3:01 PM CDT, 4 hours 15 minutes earlier.

Area forecast discussion, Aug 15, 3:01 PM CDT, 4 hours 15 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
301 PM CDT MON AUG 15 2005

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT
CONVECTION HAS SLOWLY INCREASED IN COVERAGE AND INTENSITY SINCE
18Z...PER TRENDS INDICATED BY LOCAL RADAR DATA. DURING THE LATE
AFTERNOON AND EVENING...EXPECT THE STRONGEST STORMS ACROSS THE
EXTREME NORTHEAST PORTIONS OF THE FORECAST AREA...IN A REGION OF THE
GREATEST INSTABILITY AND BEST FORCING.

A VERY SLOW MOVING BOUNDARY ACROSS SOUTHWEST MISSOURI AND NORTHEAST
OKLAHOMA WILL CONTINUE TO WEAKEN AS IT SLIDES INTO NORTHERN PORTIONS
OF THE FORECAST AREA ON TUESDAY.  FORCING ASSOCIATED THIS FEATURE
WILL BE WEAK...EXPECT A PRONOUNCED DIURNAL TREND TO
CONVECTION TUESDAY AND WEDNESDAY.

CONVECTION COVERAGE WILL DECREASE ON THURSDAY AND FRIDAY...AS MID
AND UPPER LEVEL HEIGHTS INCREASE ACROSS THE REGION.

&&

.LONG TERM...SATURDAY THROUGH MONDAY
RIDGE OVER THE SOUTHERN HALF OF THE NATION CHANGES GRADUALLY TO A
LONGWAVE RIDGE OVER THE WEST AND A LONGWAVE TROUGH OVER THE EAST BY
12Z MONDAY. THIS WILL RESULT IN A BARELY NOTICEABLE WIND SHIFT AT
THE SURFACE DURING THE DAYTIME SUNDAY. THEN...DRIER AIR WILL FILTER
IN FROM THE NORTHEAST AS SURFACE RIDGE MOVES INTO THE UPPER MIDWEST.
FORECAST TEMPS WILL FOLLOW PERSISTENCE AND REMAIN ABOVE NORMAL.
&&

.PRELIMINARY POINT TEMPS/POPS...
LITTLE ROCK   AR  72  91  73  93 /  30  30  30  20
HARRISON AR       68  85  70  89 /  40  40  40  30
HOT SPRINGS AR    72  91  73  93 /  30  30  30  20
PINE BLUFF AR     73  91  74  93 /  30  30  30  20
MOUNTAIN HOME AR  68  85  70  89 /  40  40  30  30
MONTICELLO AR     73  92  73  94 /  20  20  20  20
SEARCY AR         72  90  73  92 /  30  30  30  20
MOUNT IDA AR      72  91  73  93 /  30  30  30  20
RUSSELLVILLE AR   71  90  72  91 /  30  30  30  30
&&

.LZK WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SHORT TERM...55 / LONG TERM....32
Hazardous weather outlook, Aug 15, 5:00 AM CDT, 14 hours 16 minutes before
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The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 15, 10:10 PM CDTSevere Thunderstorm WarningLZKCleburne, Independence, White50 min
Aug 16, 2:05 PM CDTFlash Flood WarningLZKWhite115 min

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.