Alert archive / Arkansas / Tornado Warnings in 2010

Tornado Warning 1, NWS Little Rock, AR

March 10, 2010Clark County, Hot Spring County, Pike County, Arkansas

NWS Little Rock, AR issued this tornado warning at Mar 10, 2010, 4:17 PM CST for Clark County, Hot Spring County, Pike County, Arkansas. It was in force for 43 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
Mar 10, 2010, 4:17 PM CST (22:17 UTC)
Expired
Mar 10, 2010, 5:00 PM CST
In force
43 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon

Counties Clark County, AR, Hot Spring County, AR, Pike County, AR

The radar

The Little Rock radar (KLZK), 117 km from the middle of the area, began a volume at 22:16 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 10, 11:39 AM CSTSevere Thunderstorm WatchSPC5 hr
Mar 10, 3:26 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 10.3 hours before the alert went out and 194 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, Shreveport, LA at 12:00Z on 2010-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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, Shreveport, LA at 12:00Z on 2010-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
5 J/kg
Mixed-layer CIN
-354 J/kg
Mixed-layer LCL
1443 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Mar 10, 2:53 PM CST, 1 hour 24 minutes earlier.

Area forecast discussion, Mar 10, 2:53 PM CST, 1 hour 24 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
253 PM CST WED MAR 10 2010

.SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT
BIG FOCUS IN THE NEXT 12 TO 24 HOURS WILL BE ON THE SURFACE LOW
PRESSURE OUT IN OKLAHOMA AND ITS ASSOCIATED BOUNDARY. CURRENTLY...
SHOWERS/THUNDERSTORMS ARE DEVELOPING AHEAD OF THE FRONTAL BOUNDARY
IN NORTH TEXAS...WITH ISOLATED CELLS OVER NORTHERN OKLAHOMA. THOUGH
DISCRETE CELLS WILL BE POSSIBLE THROUGH THE LATE AFTERNOON AND EARLY
EVENING AHEAD OF THE SYSTEM...THINGS WILL CONTINUE TO ORGANIZE INTO
LINE SEGMENTS.

SEVERE STORMS WILL BE POSSIBLE THROUGH THE AFTERNOON AND EVENING AS
THE FRONT AND ASSOCIATED CONVECTION SWEEP NORTHEASTWARD ACROSS
ARKANSAS. THOUGH NO PORTION OF THE FORECAST AREA IS EXEMPT FROM THE
POSSIBILITY OF SEVERE THUNDERSTORMS...IT APPEARS THE AREA WITH THE
GREATEST LIKELIHOOD WILL BE GENERALLY EAST OF A LINE FROM FLIPPIN...
TO HOT SPRINGS...TO ARKADELPHIA. IN THIS AREA...MOISTURE RETURN HAS
BEEN THE GREATEST...WITH DEWPOINTS IN THE MID 50S TO NEAR 60 DEGREES
AND TEMPERATURES HAVE WARMED INTO THE MID AND UPPER 70S. PRIMARY
THREATS FROM ANY STRONG STORMS WILL BE HAIL AND WIND DAMAGE...AND
WITH INCREASING HELICITY VALUES...A TORNADO OR TWO CANNOT BE RULED
OUT.

CONVECTION WILL LIKELY CLEAR CENTRAL ARKANSAS WITHIN A COUPLE OF
HOURS EITHER SIDE OF MIDNIGHT...WITH IT CLEARING OUT OF THE
NORTHEAST BETWEEN 09-12Z...AS THE FRONT PUSHES IT INTO THE OHIO
VALLEY.

AFTER THE FRONT EXITS THE AREA LATE TONIGHT/EARLY THURSDAY
MORNING...COOLER AND MUCH DRIER AIR WILL BLOW IN ON CONTINUED
SOUTHWEST SURFACE FLOW. WINDS MAY BE A LITTLE GUSTY OVER THE DELTA
REGION/PRAIRIES OF EASTERN ARKANSAS DURING THE DAY.

UPPER LOW WILL MEANDER AROUND THE CENTRAL PLAINS AND THE MID SOUTH
FOR THE REMAINDER OF THE SHORT TERM PERIODS. THIS WILL ENHANCE CLOUD
COVER...KEEP SMALL CHANCES OF SHOWERS IN THE FORECAST...AND ACT TO
LOWER TEMPERATURES...ESPECIALLY DAYTIME HIGHS. BY SATURDAY...
TEMPERATURES WILL BE ANYWHERE FROM FIVE TO TEN DEGREES BELOW AVERAGE
FOR MID MARCH.
&&

.LONG TERM...SUNDAY THROUGH WEDNESDAY
THE LONG TERM BEGINS WITH UPPER LOW PRESSURE SYSTEMS OVER THE
NORTHEAST AND OVER THE FOUR CORNERS REGION. NORTHWEST FLOW WILL BE
OVER ARKANSAS UNTIL THE WESTERN LOW MOVES TO NEAR ARKANSAS TUESDAY.
THESE LOWS WILL BE SLOW MOVERS THROUGH THE PERIOD.

NOTHING IN THE WAY OF COLD FRONTS WILL BE MOVING THROUGH THE AREA.
SOMEWHAT UNSETTLED WEATHER WILL BE POSSIBLE WITH THE PROXIMITY OF
LOW PRESSURES TO ARKANSAS. WILL KEEP A SLIGHT CHANCE OF SHOWERS OVER
THE AREA MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON. SURFACE HIGH
PRESSURE ENCROACHES THE AREA WEDNESDAY. NEAR NORMAL TEMPERATURES ARE
EXPECTED THROUGH THE PERIOD.
&&

.PRELIMINARY POINT TEMPS/POPS...
BATESVILLE AR     49  65  40  55 /  80  20  20  30
CAMDEN AR         50  72  44  61 /  80  10  20  30
HARRISON AR       44  57  37  50 /  80  20  20  30
HOT SPRINGS AR    46  69  42  58 /  80  10  20  30
LITTLE ROCK   AR  50  69  43  59 /  90  10  20  30
MONTICELLO AR     54  75  47  65 /  90  10  20  30
MOUNT IDA AR      43  67  42  58 /  80  10  20  30
MOUNTAIN HOME AR  48  61  38  53 /  80  20  20  30
NEWPORT AR        51  66  41  57 /  80  20  20  30
PINE BLUFF AR     53  71  45  63 /  90  10  20  30
RUSSELLVILLE AR   44  66  41  58 /  80  10  20  30
SEARCY AR         48  69  42  59 /  70  10  20  30
STUTTGART AR      51  69  44  60 /  80  10  20  30
&&

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

SHORT TERM...57 / LONG TERM...51
Hazardous weather outlook, Mar 10, 11:57 AM CST, 4 hours 20 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 10, 5:01 PM CSTSevere Thunderstorm WarningLZKClark, Garland, Hot Spring, Pike44 min
Mar 10, 5:07 PM CSTSevere Thunderstorm WarningLZKClark, Pike23 min
Mar 10, 5:20 PM CSTSevere Thunderstorm WarningLZKFaulkner, Garland, Hot Spring, Pulaski, Saline40 min
Mar 10, 5:20 PM CSTTornado WarningLZKClark, Garland, Hot Spring40 min
Mar 10, 5:49 PM CSTSevere Thunderstorm WarningLZKBaxter, Izard, Marion, Searcy, Stone, Van Buren26 min
Mar 10, 5:55 PM CSTSevere Thunderstorm WarningLZKMontgomery, Pike, Polk, Scott, Yell50 min

Nearby

Tornado Warnings in Arkansas, 2010Every tornado warning in 2010Tornadoes 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.