Alert archive / Arkansas / Flash Flood Warnings in 2004

Flash Flood Warning 13, NWS Little Rock, AR

April 22, 2004Logan County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Apr 22, 2004, 12:44 AM CDT for Logan County, 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 outline as issued.

The facts

Issued: Apr 22, 2004, 12:44 AM CDT (05:44 UTC)
Expired: Apr 22, 2004, 3:45 AM CDT
In force: 3 hr
Issued by: NWS Little Rock, AR
Area: Counties, with a storm outline in the text

County Logan County, AR

The radar

The Western Arkansas radar (KSRX), 73 km from the middle of the area, began a volume at 05:48 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

Springfield, MO (KSGF), launched 00:00Z, 5.7 hours before the alert went out and 176 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: 91 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 1996 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 152 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 220546
FFWLIT
ARC083-220845-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1244 AM CDT THU APR 22 2004

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LOGAN COUNTY IN WESTERN ARKANSAS

* UNTIL 345 AM CDT

* AT 1240 AM CDT...DOPPLER WEATHER RADAR INDICATED THAT SHOWERS AND  
  THUNDERSTORMS WERE MOVING INTO LOGAN COUNTY FROM THE WEST. THE     
  RADAR SHOWED THAT 2 TO AS MUCH AS 4 INCHES OF RAIN HAD ALREADY     
  FALLEN WITH PREVIOUS STORMS. THIS WAS ESPECIALLY TRUE FROM         
  CAULKSVILLE TO PARIS AND NEW BLAINE. WITH ADDITIONAL HEAVY         
  RAINFALL...FLASH FLOODING IS LIKELY TO OCCUR. 

&&

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF YOU ENCOUNTER WATER ACROSS THE ROAD...TURN
AROUND AND GO THE OTHER WAY.

LAT...LON 3541 9345 3534 9341 3533 9331 3530 9328
          3522 9328 3523 9391 3531 9390 3532 9379
          3538 9380

$$

46

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 21, 7:16 PM CDT	Flash Flood Warning	LZK	Faulkner	3 hr
Apr 21, 7:17 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Pulaski	43 min
Apr 21, 7:57 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, White	43 min
Apr 21, 8:19 PM CDT	Flash Flood Warning	LZK	White	116 min
Apr 21, 8:46 PM CDT	Severe Thunderstorm Warning	LZK	Johnson	29 min
Apr 21, 8:59 PM CDT	Severe Thunderstorm Warning	LZK	Prairie	31 min
Apr 21, 9:04 PM CDT	Severe Thunderstorm Warning	LZK	Lincoln	46 min
Apr 21, 9:13 PM CDT	Severe Thunderstorm Warning	LZK	Johnson	47 min
Apr 21, 10:23 PM CDT	Flash Flood Warning	LZK	Faulkner, White, Woodruff	3 hr
Apr 22, 12:12 AM CDT	Flash Flood Warning	LZK	Johnson	3 hr
Apr 22, 12:28 AM CDT	Flash Flood Warning	LZK	Conway, Pope	3 hr
Apr 22, 1:45 AM CDT	Severe Thunderstorm Warning	LZK	Yell	35 min
Apr 22, 2:45 AM CDT	Severe Thunderstorm Warning	LZK	Scott	30 min
Apr 22, 3:28 AM CDT	Flash Flood Warning	LZK	Scott, Yell	2 hr
Apr 22, 3:30 AM CDT	Flash Flood Warning	LZK	Conway, Perry	2 hr
Apr 22, 3:43 AM CDT	Severe Thunderstorm Warning	LZK	Yell	42 min
Apr 22, 5:54 AM CDT	Flash Flood Warning	LZK	Faulkner, Perry, White, Yell	2 hr
Apr 22, 6:09 AM CDT	Flash Flood Warning	LZK	Scott	111 min

Nearby

Flash Flood Warnings in Arkansas, 2004 Every flash flood warning in 2004

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.