Alert archive / Arkansas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 21, NWS Little Rock, AR

March 27, 2007Desha County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Mar 27, 2007, 6:21 PM CDT for Desha County, Arkansas. It was in force for 54 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 27, 2007, 6:21 PM CDT (23:21 UTC)
Expired
Mar 27, 2007, 7:15 PM CDT
In force
54 min
Issued by
NWS Little Rock, AR
Area
Counties, with a storm outline in the text

County Desha County, AR

The radar

The Little Rock radar (KLZK), 142 km from the middle of the area, began a volume at 23:22 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.

What was reported inside it

TimeReportWhereRemark
Mar 27, 6:25 PM CDTTSTM WND DMG6 S Dumas, ARPICKUP TRUCK PULLING CAMPING TRAILER WAS OVERTURNED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 27, 5:58 PM CDTSevere Thunderstorm WatchSPC2 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 11.4 hours before the alert went out and 152 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 2007-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2007-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1104 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WWUS54 KLZK 272357
SVSLZK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
655 PM CDT TUE MAR 27 2007

ARC041-280015-
/O.CON.KLZK.SV.W.0021.000000T0000Z-070328T0015Z/
DESHA AR-
655 PM CDT TUE MAR 27 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR DESHA COUNTY...

AT 648 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR 
WATSON...MOVING NORTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
YANCOPIN AND MOZART.

THE STORM WILL PRODUCE UP TO NICKEL SIZE HAIL AND STRONG TO DAMAGING 
WINDS.

PEOPLE IN THE PATH OF THE STORM NEED TO FIND A PLACE OF SAFETY NOW 
&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
TUESDAY EVENING FOR SOUTHEAST ARKANSAS.

LAT...LON 3377 9143 3379 9154 3386 9154 3395 9135
      3395 9118 3393 9116 3405 9117 3411 9106
      3411 9096 3405 9091 3400 9099 3396 9097
      3401 9106 3399 9109 3394 9102 3381 9106
      3371 9127 3369 9143

$$

46
1 follow-up statement
000 
WUUS54 KLZK 272322
SVRLZK
ARC041-280015-
/O.NEW.KLZK.SV.W.0021.070327T2321Z-070328T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
621 PM CST TUE MAR 27 2007

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DESHA COUNTY IN SOUTHEAST ARKANSAS

* UNTIL 715 PM CST

* AT 618 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED 8 MILES SOUTH OF
  DUMAS...MOVING NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  KELSO...ROHWER AROUND 635 PM CST...
  WATSON AROUND 645 PM CST...
  YANCOPIN AROUND 650 PM CST...
  SNOW LAKE AROUND 710 PM CST...

&&

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN LITTLE ROCK.

LAT...LON 3377 9143 3379 9154 3386 9154 3395 9135
      3395 9118 3393 9116 3405 9117 3411 9106
      3411 9096 3405 9091 3400 9099 3396 9097
      3401 9106 3399 9109 3394 9102 3381 9106
      3371 9127 3369 9143

$$

46

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 4:10 PM CDTSevere Thunderstorm WarningLZKBradley, Calhoun50 min
Mar 27, 4:13 PM CDTTornado WarningLZKDallas47 min
Mar 27, 4:21 PM CDTTornado WarningLZKBradley54 min
Mar 27, 5:13 PM CDTSevere Thunderstorm WarningLZKDrew47 min
Mar 27, 5:54 PM CDTTornado WarningLZKClark51 min
Mar 27, 6:59 PM CDTSevere Thunderstorm WarningLZKCleburne, White46 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2007Every severe thunderstorm warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.