Alert archive / Arkansas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 255, NWS Little Rock, AR

July 14, 20144 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jul 14, 2014, 1:50 PM CDT for 4 counties in Arkansas. It was in force for 40 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
Jul 14, 2014, 1:50 PM CDT (18:50 UTC)
Expired
Jul 14, 2014, 2:30 PM CDT
In force
40 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon

Counties Newton County, AR, Pope County, AR, Searcy County, AR, Van Buren County, AR

The radar

The Little Rock radar (KLZK), 112 km from the middle of the area, began a volume at 18:52 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
Jul 14, 1:22 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 6.8 hours before the alert went out and 156 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 12:00Z on 2014-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 61 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 12:00Z on 2014-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -43 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
61 J/kg
Mixed-layer CIN
-253 J/kg
Mixed-layer LCL
1347 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-43 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.5

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 Jul 14, 12:44 PM CDT, 1 hour 6 minutes earlier.

Area forecast discussion, Jul 14, 12:44 PM CDT, 1 hour 6 minutes before
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Hazardous weather outlook, Jul 14, 5:00 AM CDT, 8 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
500 AM CDT MON JUL 14 2014

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-151000-
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-
500 AM CDT MON JUL 14 2014

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

.DAY ONE...TODAY AND TONIGHT

HEAT INDICES THIS AFTERNOON WILL RANGE FROM 100 TO 104 ACROSS
CENTRAL AND SOUTHERN SECTIONS OF ARKANSAS.

A COLD FRONT WILL BRING SCATTERED THUNDERSTORMS TO ARKANSAS TODAY. A
FEW SEVERE STORMS COULD OCCUR THIS AFTERNOON AND EVENING...
ESPECIALLY IN THE EASTERN HALF OF THE STATE. DAMAGING WINDS WILL BE
A GREATER THREAT THAN LARGE HAIL.

SOME THUNDERSTORMS ARE LIKELY TO CONTINUE AFTER MIDNIGHT TONIGHT
OVER THE SOUTHERN HALF OF THE STATE.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

UNUSUALLY COOL NIGHTS AND MILD DAYS...FOR THE MIDDLE OF JULY...WILL
BE FELT BEGINNING TUESDAY.

THE COLD FRONT WILL STALL TO THE SOUTH OF ARKANSAS AND THEN BEGIN
MOVING BACK TO THE NORTH LATER THIS WEEK. MEANWHILE...AREAS OF LOW
PRESSURE ALOFT WILL ARRIVE FROM THE WEST. THE RESULT WILL BE SHOWERS
AND THUNDERSTORMS...FROM TIME TO TIME...BEGINNING WEDNESDAY NIGHT.
LOCALLY HEAVY RAIN IS POSSIBLE THURSDAY AND THURSDAY NIGHT...
ESPECIALLY OVER THE SOUTHERN HALF OF THE STATE. RAIN SHOULD TAPER
OFF ON FRIDAY.

TEMPERATURES MORE TYPICAL OF SUMMERTIME WILL RETURN BY NEXT SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION COULD BECOME NECESSARY THIS AFTERNOON AND EVENING.

&&

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

28

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 1:10 PM CDTSevere Thunderstorm WarningLZKNewton, Searcy50 min
Jul 14, 1:28 PM CDTSevere Thunderstorm WarningLZKNewton32 min
Jul 14, 2:06 PM CDTSevere Thunderstorm WarningLZKSearcy, Stone, Van Buren24 min
Jul 14, 2:16 PM CDTSevere Thunderstorm WarningLZKPolk, Scott29 min
Jul 14, 2:26 PM CDTSevere Thunderstorm WarningLZKCleburne, Conway, Johnson, Logan, Pope, Searcy and 2 more49 min
Jul 14, 2:41 PM CDTSevere Thunderstorm WarningLZKCleburne, Independence, Stone49 min
Jul 14, 2:42 PM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Van Buren33 min
Jul 14, 2:46 PM CDTSevere Thunderstorm WarningLZKMontgomery, Scott, Yell44 min
Jul 14, 2:47 PM CDTSevere Thunderstorm WarningLZKMontgomery, Polk, Scott43 min
Jul 14, 3:12 PM CDTFlash Flood WarningLZKJohnson, Newton, Pope3 hr
Jul 14, 3:38 PM CDTSevere Thunderstorm WarningLZKFaulkner, White37 min
Jul 14, 3:43 PM CDTSpecial Weather StatementLZKIndependence, Jackson47 min
Jul 14, 4:18 PM CDTSpecial Weather StatementLZKWhite, Woodruff32 min
Jul 14, 4:27 PM CDTSpecial Weather StatementLZKPike58 min
Jul 14, 4:30 PM CDTSpecial Weather StatementLZKJackson20 min
Jul 14, 4:52 PM CDTSpecial Weather StatementLZKPrairie28 min
Jul 14, 5:05 PM CDTSpecial Weather StatementLZKGarland30 min
Jul 14, 5:08 PM CDTSevere Thunderstorm WarningLZKGarland, Hot Spring, Saline37 min
Jul 14, 5:37 PM CDTSpecial Weather StatementLZKPulaski43 min
Jul 14, 6:08 PM CDTSevere Thunderstorm WarningLZKJohnson, Logan37 min
Jul 14, 6:24 PM CDTSevere Thunderstorm WarningLZKGrant, Jefferson, Lonoke, Pulaski51 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2014Every severe thunderstorm warning in 2014

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.