Alert archive / Arkansas / Flash Flood Warnings in 2003

Flash Flood Warning 84, NWS Little Rock, AR

August 2, 2003Boone County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Aug 2, 2003, 6:24 AM CDT for Boone County, Arkansas. It was in force for 2 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: Aug 2, 2003, 6:24 AM CDT (11:24 UTC)
Expired: Aug 2, 2003, 8:25 AM CDT
In force: 2 hr
Issued by: NWS Little Rock, AR
Area: Counties, with a storm outline in the text

County Boone County, AR

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 11.4 hours before the alert went out and 91 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: 483 J/kg
Mixed-layer CIN: -165 J/kg
Mixed-layer LCL: 1986 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 158 m²/s²
0-3 km storm-relative helicity: 280 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KLZK 021127
FFWLIT
ARC009-021325-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
624 AM CDT SAT AUG 2 2003

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOONE COUNTY IN NORTH CENTRAL ARKANSAS

* UNTIL 825 AM CDT

* AT 620 AM CDT...DOPPLER WEATHER RADAR SHOWED WIDESPREAD SHOWERS    
  AND THUNDERSTORMS ACROSS MUCH OF BOONE COUNTY. AREAS OF HEAVY RAIN 
  HAVE OCCURRED ACROSS THE COUNTY...WITH 2 TO 3 INCH AMOUNTS IN SOME 
  SPOTS. WITH ADDITIONAL HEAVY RAINFALL...FLASH FLOODING IS LIKELY   
  TO OCCUR. 

&&      

DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THE WATER DEPTH
MAY BE TO GREAT FOR SAFE PASSAGE. IT ONLY TAKES ABOUT TWO FEET OF
MOVING WATER TO CARRY A VEHICLE DOWNSTREAM.

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 3648 9289 3613 9288 3613 9328 3649 9330

$$

46

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 Aug 2, 3:38 AM CDT, 2 hours 46 minutes earlier.

Area forecast discussion, Aug 2, 3:38 AM CDT, 2 hours 46 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
338 AM CDT SAT AUG 2 2003

OF MAIN CONCERN THIS AM ARE TSTMS TODAY. A SERIES OF UPPER LEVEL
TROUGHS WILL CONTINUE TO MOVE ACROSS OUR REGION UNDER A CONTINUING
NORTHWEST FLOW ALOFT FOR THE NEXT SEVERAL DAYS. TEMPS WILL CONTINUE
IN THE WARM TO HOT CATEGORY AND NEAR NORMAL.

FCSTID =   38
HRO   86  67  88  69 /  50  20  20  20
LIT   91  72  90  72 /  50  30  30  20
HOT   91  73  91  72 /  50  30  30  20
PBF   93  74  92  72 /  40  30  30  20

.LZK...NONE.

Hazardous weather outlook, Aug 2, 5:00 AM CDT, 1 hour 24 minutes before

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-031000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
500 AM CDT SAT AUG 2 2003

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

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT
ACROSS MOST OF ARKANSAS.

NORTHWEST FLOW ALOFT WILL ALLOW SEVERAL SYSTEMS IN THE UPPER
ATMOSPHERE TO MOVE ACROSS THE STATE. STORMS WILL DEVELOP ALONG A
STATIONARY FRONT THAT IS LOCATED IN SOUTHERN ARKANSAS. MULTIPLE
STORMS MAY FORM AND COMBINE WITH ONE ANOTHER TO FORM LARGE COMPLEXES
OF STORMS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SHOWERS AND THUNDERSTORMS WILL BE EXPECTED THROUGH EARLY NEXT WEEK.
THE FRONT WILL EVENTUALLY MOVE NORTH AND OUT OF THE AREA BY
WEDNESDAY. UNTIL THEN...SCATTERED SHOWERS AND THUNDERSTORMS WILL BE
IN THE FORECAST.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED TODAY AND TONIGHT.

51

In the hours before

Local storm report, Aug 2, 1:05 AM CDT, 5 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
105 AM CDT SAT AUG 2 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1035 PM    MENA                      AR   WIND DAMAGE
08/01/03   POLK                           TREES AND POWER LINES
                                          DOWN. REPORTED BY LAW
                                          ENFORCEMENT.

1218 AM    2 S MURFREESBORO          AR   WIND DAMAGE
08/02/03   PIKE                           TREES DOWN. REPORTED BY
                                          LAW ENFORCEMENT.

44

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 9:25 PM CDT	Severe Thunderstorm Warning	LZK	Logan, Scott	45 min
Aug 1, 10:36 PM CDT	Severe Thunderstorm Warning	LZK	Polk	44 min
Aug 1, 11:56 PM CDT	Severe Thunderstorm Warning	LZK	Pike	39 min
Aug 2, 4:09 AM CDT	Severe Thunderstorm Warning	LZK	Baxter, Boone, Fulton, Izard, Marion	76 min
Aug 2, 4:52 AM CDT	Severe Thunderstorm Warning	LZK	Searcy, Stone	58 min
Aug 2, 5:00 AM CDT	Severe Thunderstorm Warning	LZK	Sharp	50 min
Aug 2, 5:27 AM CDT	Severe Thunderstorm Warning	LZK	Boone	43 min
Aug 2, 7:46 AM CDT	Severe Thunderstorm Warning	LZK	Jackson	39 min
Aug 2, 9:24 AM CDT	Flash Flood Warning	LZK	Jackson	2 hr
Aug 2, 11:59 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas	36 min
Aug 2, 12:33 PM CDT	Severe Thunderstorm Warning	LZK	Lincoln	42 min
Aug 2, 1:42 PM CDT	Severe Thunderstorm Warning	LZK	Bradley	33 min

Nearby

Flash Flood Warnings in Arkansas, 2003 Every flash flood warning in 2003

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.