Alert archive / Arkansas / Tornado Warnings in 2006

Tornado Warning 28, NWS Little Rock, AR

September 21, 2006Montgomery County, Pike County, Arkansas

NWS Little Rock, AR issued this tornado warning at Sep 21, 2006, 11:04 PM CDT for Montgomery County, Pike County, Arkansas. It was in force for 56 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 21, 2006, 11:04 PM CDT (04:04 UTC)
Expired
Sep 22, 2006, 12:00 AM CDT
In force
56 min
Issued by
NWS Little Rock, AR
Area
Counties, with a storm outline in the text

Counties Montgomery County, AR, Pike County, AR

The radar

The Western Arkansas radar (KSRX), 123 km from the middle of the area, began a volume at 04:07 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
Sep 21, 9:30 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 4.1 hours before the alert went out and 208 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 00:00Z on 2006-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 390 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 00:00Z on 2006-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 324 square meters per square second.1939587897Sfc1 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
390 J/kg
Mixed-layer CIN
-178 J/kg
Mixed-layer LCL
681 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
324 m²/s²
0-3 km storm-relative helicity
410 m²/s²
Significant tornado parameter
0.0
Supercell composite
8.4

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 Sep 21, 6:59 PM CDT, 4 hours 5 minutes earlier.

Area forecast discussion, Sep 21, 6:59 PM CDT, 4 hours 5 minutes before
AREA FORECAST DISCUSSION...UPDATED FOR AVIATION DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
659 PM CDT THU SEP 21 2006

.AVIATION...
CONVECTION HAS BEEN SUBDUED SO FAR ACROSS THE FORECAST AREA...BUT
THAT WILL NOT BE THE CASE THROUGHOUT THE ENTIRE FORECAST. BANDED
STRUCTURE TO THE CONVECTION HAS ONE LINE TAKING SHAPE NOW OVER THE
NORTHWEST SECTIONS...AND ANOTHER FROM SOUTHEAST KANSAS TO
NORTHEAST OKLAHOMA AND ON TO THE RED RIVER. CAPE VALUES WILL BE
INCREASING DURING THE FORECAST PERIOD.
&&

.PREV DISCUSSION.../ISSUED 247 PM CDT THU SEP 21 2006/

LONG TERM...TUESDAY THROUGH THURSDAY
QUIET WEATHER IN THE EXTENDED AS HIGH PRESSURE IN CONTROL. FRONT
WILL MOVE THROUGH ON THURSDAY...BUT MOISTURE NOT OVERLY IMPRESSIVE.
AS SUCH...ONLY SLIGHT CHANCE POPS ON THURSDAY. TEMPERATURES WILL BE
SLIGHTLY BELOW NORMAL THROUGH THE EXTENDED.

&&

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

AVIATION...32
Hazardous weather outlook, Sep 21, 1:05 PM CDT, 9 hours 59 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LITTLE ROCK AR
105 PM CDT THU SEP 21 2006

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-221000-
ARKANSAS-BAXTER-BOONE-BRADLEY-CALHOUN-CLARK-CLEBURNE-CLEVELAND-
CONWAY-DALLAS-DESHA-DREW-FAULKNER-FULTON-GARLAND-GRANT-HOT SPRING-
INDEPENDENCE-IZARD-JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE-
MARION-MONROE-MONTGOMERY-NEWTON-OUACHITA-PERRY-PIKE-POLK-POPE-
PRAIRIE-PULASKI-SALINE-SCOTT-SEARCY-SHARP-STONE-VAN BUREN-WHITE-
WOODRUFF-YELL-
105 PM CDT THU SEP 21 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS.

.DAY ONE...TODAY AND TONIGHT

A STRONG UPPER LEVEL LOW WILL MOVE NORTHEAST TODAY BRINGING WARM
HUMID AIR TO THE STATE. AS A BOUNDARY APPROACHES FROM THE
WEST...SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE. SOME OF THESE
STORMS COULD BECOME SEVERE...WITH LARGE HAIL AND DAMAGING WINDS THE
MAIN CONCERNS. THE BEST CHANCE OF SEVERE WEATHER WILL BE LATE THIS
AFTERNOON INTO THE EVENING HOURS...MAINLY IN AREAS WEST OF LITTLE
ROCK.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

WARM HUMID AIR WILL REMAIN OVER THE STATE FRIDAY AND SATURDAY.
SCATTERED SHOWERS AND THUNDERSTORMS WILL OCCUR FRIDAY...WITH
ISOLATED SEVERE WEATHER POSSIBLE. AS A COLD FRONT APPROACHES
SATURDAY...A LINE OF STRONG TO SEVERE SHOWERS AND THUNDERSTORMS WILL
DEVELOP. THE MAIN CONCERN WITH THIS LINE WILL BE DAMAGING
WINDS...BUT THERE IS ALSO THE POSSIBILITY OF LARGE HAIL AND ISOLATED
TORNADOES. VERY HEAVY RAIN IS ALSO POSSIBLE IN THE STRONGEST
THUNDERSTORMS.

ALL HAZARDOUS WEATHER WILL BE OUT OF THE AREA BY SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATER TODAY AND TONIGHT MOSTLY
IN WESTERN ARKANSAS.

VISIT NWS LITTLE ROCK ON THE WEB. GO TO WWW.WEATHER.GOV AND
CLICK ON CENTRAL ARKANSAS.

58

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 21, 10:04 PM CDTTornado WarningLZKPolk56 min
Sep 22, 12:04 AM CDTSevere Thunderstorm WarningLZKClark, Garland, Hot Spring56 min
Sep 22, 12:38 AM CDTSevere Thunderstorm WarningLZKCleburne, Independence52 min
Sep 22, 1:07 AM CDTSevere Thunderstorm WarningLZKGarland, Grant, Hot Spring, Saline53 min
Sep 22, 1:34 AM CDTSevere Thunderstorm WarningLZKGarland, Montgomery, Perry, Yell26 min
Sep 22, 2:38 AM CDTSevere Thunderstorm WarningLZKSaline37 min
Sep 22, 2:43 AM CDTLake Wind AdvisoryLZKArkansas, Baxter, Bradley, Calhoun, Clark, Cleburne and 28 more36 hr
Sep 22, 3:37 AM CDTSevere Thunderstorm WarningLZKPrairie23 min
Sep 22, 4:42 AM CDTSevere Thunderstorm WarningLZKWoodruff48 min
Sep 22, 4:45 AM CDTSevere Thunderstorm WarningLZKIzard, Stone45 min
Sep 22, 5:25 AM CDTSevere Thunderstorm WarningLZKIndependence, Stone35 min
Sep 22, 6:00 AM CDTSevere Thunderstorm WarningLZKIndependence, Sharp30 min
Sep 22, 12:55 PM CDTSevere Thunderstorm WarningLZKJohnson35 min
Sep 22, 1:10 PM CDTSevere Thunderstorm WarningLZKNewton50 min
Sep 22, 1:21 PM CDTSevere Thunderstorm WarningLZKBoone, Marion, Searcy39 min
Sep 22, 1:37 PM CDTTornado WarningLZKSearcy38 min
Sep 22, 2:11 PM CDTSevere Thunderstorm WarningLZKBaxter34 min
Sep 22, 2:27 PM CDTSevere Thunderstorm WarningLZKFulton, Izard33 min
Sep 22, 2:34 PM CDTTornado WarningLZKBaxter, Izard, Stone26 min
Sep 22, 2:39 PM CDTTornado WarningLZKFulton51 min
Sep 22, 3:00 PM CDTTornado WarningLZKIzard, Sharp60 min
Sep 22, 3:42 PM CDTSevere Thunderstorm WarningLZKBoone48 min
Sep 22, 3:53 PM CDTTornado WarningLZKNewton52 min
Sep 22, 3:56 PM CDTTornado WarningLZKBoone34 min
Sep 22, 4:21 PM CDTSevere Thunderstorm WarningLZKGarland, Montgomery39 min
Sep 22, 4:44 PM CDTSevere Thunderstorm WarningLZKMarion, Searcy46 min
Sep 22, 4:53 PM CDTTornado WarningLZKSearcy37 min
Sep 22, 5:03 PM CDTSevere Thunderstorm WarningLZKGarland, Perry, Saline42 min
Sep 22, 5:06 PM CDTSevere Thunderstorm WarningLZKBaxter24 min
Sep 22, 5:14 PM CDTTornado WarningLZKBaxter31 min
Sep 22, 5:22 PM CDTTornado WarningLZKBaxter, Stone38 min
Sep 22, 5:41 PM CDTSevere Thunderstorm WarningLZKMarion34 min
Sep 22, 5:47 PM CDTTornado WarningLZKIzard43 min
Sep 22, 5:51 PM CDTSevere Thunderstorm WarningLZKBaxter24 min
Sep 22, 5:51 PM CDTSevere Thunderstorm WarningLZKBoone, Newton39 min
Sep 22, 6:00 PM CDTTornado WarningLZKNewton30 min
Sep 22, 6:16 PM CDTTornado WarningLZKBoone, Marion29 min
Sep 22, 6:20 PM CDTTornado WarningLZKJohnson25 min
Sep 22, 6:23 PM CDTTornado WarningLZKSharp52 min
Sep 22, 6:32 PM CDTTornado WarningLZKNewton28 min
Sep 22, 6:40 PM CDTTornado WarningLZKBaxter, Marion50 min
Sep 22, 6:50 PM CDTSevere Thunderstorm WarningLZKFulton55 min
Sep 22, 6:56 PM CDTTornado WarningLZKIzard49 min
Sep 22, 6:59 PM CDTSevere Thunderstorm WarningLZKNewton46 min

Nearby

Tornado Warnings in Arkansas, 2006Every tornado warning in 2006Tornadoes in 2006

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.