Alert archive / Arkansas / Flash Flood Warnings in 2007

Flash Flood Warning 21, NWS Little Rock, AR

January 14, 20074 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at Jan 14, 2007, 11:57 AM CST for 4 counties in Arkansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 14, 2007, 11:57 AM CST (17:57 UTC)
Expired
Jan 14, 2007, 3:00 PM CST
In force
3 hr
Issued by
NWS Little Rock, AR
Area
Whole counties

Counties Calhoun County, AR, Clark County, AR, Dallas County, AR, Ouachita County, AR

The radar

The Little Rock radar (KLZK), 126 km from the middle of the area, began a volume at 18:01 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 (KSHV), launched 12:00Z, 6.0 hours before the alert went out and 171 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 2007-01-14Temperature 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, Shreveport, LA at 12:00Z on 2007-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 334 square meters per square second.19395878Sfc1 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
453 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
334 m²/s²
0-3 km storm-relative helicity
351 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 
WGUS54 KLZK 141800
FFWLZK
ARC013-019-039-103-109-142100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1157 AM CST SUN JAN 14 2007

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CALHOUN COUNTY IN SOUTHWEST ARKANSAS
  CLARK COUNTY IN SOUTHWEST ARKANSAS
  DALLAS COUNTY IN SOUTHWEST ARKANSAS
  OUACHITA COUNTY IN SOUTHWEST ARKANSAS
  PIKE COUNTY IN SOUTHWEST ARKANSAS

* UNTIL 300 PM CST

* AT 1155 AM CST...MODERATE TO HEAVY RAIN CONTINUED ACROSS MUCH OF   
  SOUTHWESTERN ARKANSAS. THE RAIN WAS AGGRAVATING PROBLEMS IN AREAS  
  WHERE FLOODING HAS ALREADY OCCURRED. IN GENERAL...2 TO 4 INCHES OF 
  RAIN AND LOCALLY MORE FELL SATURDAY AND SATURDAY NIGHT...AND THE   
  GROUND IS SATURATED. WHILE RAIN WILL LIKELY TAPER OFF DURING THE   
  WARNING PERIOD...IT WILL TAKE AWHILE FOR ANY HIGH WATER TO         
  RUNOFF.

&&

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

LAT...LON 3403 9377 3394 9329 3379 9309 3341 9309
      3330 9235 3376 9236 3397 9248 3413 9247
      3415 9302 3423 9309 3426 9328 3433 9339
      3433 9388

$$

46

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 13, 7:13 PM CSTFlash Flood WarningLZKIzard, Searcy, Sharp, Stone6 hr
Jan 13, 7:13 PM CSTFlash Flood WarningLZKFulton, Izard, Searcy, Sharp, Stone6 hr
Jan 13, 8:39 PM CSTFlash Flood WarningLZKConway, Van Buren4 hr
Jan 13, 9:02 PM CSTFlash Flood WarningLZKClark, Dallas, Grant, Hot Spring, Pike6 hr
Jan 13, 11:10 PM CSTFlash Flood WarningLZKPulaski, Saline3 hr
Jan 14, 8:56 AM CSTFlash Flood WarningLZKCalhoun, Clark, Dallas, Ouachita, Pike3 hr
Jan 14, 10:34 AM CSTFlash Flood WarningLZKGarland, Grant, Hot Spring, Jefferson, Lonoke, Pulaski and 1 more4 hr
Jan 14, 12:32 PM CSTFlash Flood WarningLZKCleburne, Faulkner, Perry5 hr
Jan 14, 12:32 PM CSTFlash Flood WarningLZKCleburne, Faulkner, Independence, Jackson, Perry, Prairie and 2 more5 hr
Jan 14, 3:07 PM CSTFreezing Rain AdvisoryLZKBaxter, Fulton, Izard, Marion, Stone12 hr

Nearby

Flash Flood Warnings in Arkansas, 2007Every flash flood 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.