Alert archive / Arkansas / Flash Flood Warnings in 2014

Flash Flood Warning 15, NWS Little Rock, AR

May 12, 20145 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at May 12, 2014, 9:03 PM CDT for 5 counties in Arkansas. It was in force for 87 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: May 12, 2014, 9:03 PM CDT (02:03 UTC)
Expired: May 12, 2014, 10:30 PM CDT
In force: 87 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Clark County, AR, Garland County, AR, Montgomery County, AR, Pike County, AR, Yell County, AR

The radar

The Little Rock radar (KLZK), 113 km from the middle of the area, began a volume at 02:05 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

Shreveport, LA (KBAD), launched 00:00Z, 2.1 hours before the alert went out and 223 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1160 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 1045 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at May 12, 6:22 PM CDT, 2 hours 41 minutes earlier.

Area forecast discussion, May 12, 6:22 PM CDT, 2 hours 41 minutes before

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Hazardous weather outlook, May 12, 2:05 PM CDT, 6 hours 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
205 PM CDT MON MAY 12 2014

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-131015-
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-
205 PM CDT MON MAY 12 2014

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

.DAY ONE...TODAY AND TONIGHT

A COLD FRONT WILL APPROACH WESTERN SECTIONS OF THE STATE THIS
EVENING...THEN WILL REACH CENTRAL SECTIONS OF THE STATE TOWARDS
SUNRISE TUESDAY. THIS FEATURE WILL FOCUS THE DEVELOPMENT OF SHOWERS
AND THUNDERSTORMS...SOME OF WHICH WILL PRODUCE HEAVY RAINFALL.

TWO TO THREE INCHES OF RAINFALL WILL BE COMMON THROUGH LATE
TONIGHT...ALONG AND WEST OF A LINE FROM MOUNTAIN HOME...TO
ARKADELPHIA...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. THIS HEAVY
RAINFALL WILL PROMOTE CONDITIONS FAVORABLE FOR FLASH FLOODING.

OF PARTICULAR CONCERN OF FLASH FLOODING OVERNIGHT EXTENDS ACROSS
AREAS FROM DANVILLE...TO WALDRON...TO MENA...TO MOUNT IDA...WHERE
CONDITIONS ARE SATURATED DUE TO RECENT HEAVY RAINFALL.

ISOLATED THUNDERSTORMS WILL REACH SEVERE LIMITS LATE THIS AFTERNOON
AND EVENING. DAMAGING WIND GUSTS ARE THE PRIMARY THREATS WITH STORMS
THAT REACH SEVERE LEVELS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE STORM SYSTEM AND COLD FRONT WILL SLOWLY MOVE ACROSS ARKANSAS
THROUGH WEDNESDAY...AND BRING SEVERAL ROUNDS OF SHOWERS AND
THUNDERSTORMS...WITH HEAVY RAIN. DUE TO THE SLOW SPEED OF THE
SYSTEM...IT WILL HAVE THE POTENTIAL TO BRING MULTIPLE ROUNDS OF
SHOWERS AND THUNDERSTORMS BEFORE IT FINALLY EXITS THE AREA LATE
WEDNESDAY. AN ABUNDANT AMOUNT OF MOISTURE WILL BE WITH THIS
SYSTEM...AND RAIN AMOUNTS FROM ONE TO THREE INCHES WILL BE
SEEN...WITH SOME AREAS SEEING OVER FOUR INCHES. THE AREA WITH THE
GREATEST POTENTIAL FOR THE HEAVY RAIN WILL BE OVER THE WEST AND
SOUTHWEST. A FLASH FLOOD WATCH WILL BE IN EFFECT FOR MUCH OF THE
WESTERN HALF OF THE STATE THROUGH WEDNESDAY.

THERE IS ALSO A SMALL CHANCE OF STRONG TO SEVERE THUNDERSTORMS...
BUT THE GREATER CONCERN REMAINS WITH THE HEAVY RAIN. IF STRONG TO
SEVERE THUNDERSTORMS WERE TO DEVELOP...HAIL AND STRONG WINDS WOULD
BE THE PRIMARY THREATS.

AREA RESIDENTS SHOULD MONITOR THE LATEST FORECAST FOR ADDITIONAL
INFORMATION REGARDING THIS WEATHER SYSTEM.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT DUE TO THE
LIMITED THREAT OF SEVERE STORMS.

&&

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

55/59

In the hours before

Special weather statement, May 12, 5:21 PM CDT, 3 hours 42 minutes before

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Special weather statement, May 12, 5:41 PM CDT, 3 hours 22 minutes before

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Special weather statement, May 12, 5:47 PM CDT, 3 hours 16 minutes before

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Special weather statement, May 12, 6:10 PM CDT, 2 hours 53 minutes before

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Special weather statement, May 12, 6:20 PM CDT, 2 hours 43 minutes before

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Special weather statement, May 12, 6:51 PM CDT, 2 hours 12 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 7:13 PM CDT	Special Weather Statement	LZK	Perry	32 min
May 12, 7:20 PM CDT	Special Weather Statement	LZK	Yell	30 min
May 12, 7:39 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Perry	21 min
May 12, 7:49 PM CDT	Special Weather Statement	LZK	Baxter	21 min
May 12, 8:00 PM CDT	Special Weather Statement	LZK	Montgomery	30 min
May 12, 8:04 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery	41 min
May 12, 8:11 PM CDT	Special Weather Statement	LZK	Searcy, Stone, Van Buren	29 min
May 12, 8:17 PM CDT	Special Weather Statement	LZK	Conway, Perry	28 min
May 12, 8:42 PM CDT	Special Weather Statement	LZK	Perry	33 min
May 12, 8:45 PM CDT	Special Weather Statement	LZK	Garland	30 min
May 12, 9:13 PM CDT	Special Weather Statement	LZK	Conway, Faulkner, Perry	32 min
May 12, 9:17 PM CDT	Special Weather Statement	LZK	Pike	28 min
May 12, 9:30 PM CDT	River Flood Advisory	LZK	Perry	36 hr
May 12, 9:41 PM CDT	Special Weather Statement	LZK	Cleburne, Faulkner	29 min
May 12, 10:11 PM CDT	Special Weather Statement	LZK	Pulaski	29 min
May 12, 11:07 PM CDT	Special Weather Statement	LZK	White	43 min
May 13, 12:30 AM CDT	Areal Flood Advisory	LZK	Grant, Jefferson, Lonoke, Prairie, Pulaski, White	2 hr
May 13, 8:11 AM CDT	River Flood Warning	LZK	Perry	71 hr

Nearby

Flash Flood Warnings in Arkansas, 2014 Every flash flood 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.