Alert archive / Arkansas / Flash Flood Warnings in 2002

Flash Flood Warning 25, NWS Memphis, TN

May 25, 2002Clay County, Arkansas; Dunklin County, Missouri

NWS Memphis, TN issued this flash flood warning at May 25, 2002, 8:02 PM CDT for Clay County, Arkansas; Dunklin County, Missouri. It was in force for 88 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 25, 2002, 8:02 PM CDT (01:02 UTC)
Expired: May 25, 2002, 9:30 PM CDT
In force: 88 min
Issued by: NWS Memphis, TN
Area: Counties, with a storm outline in the text

Counties Clay County, AR, Dunklin County, MO

The radar

The Memphis radar (KNQA), 120 km from the middle of the area, began a volume at 01:01 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

Little Rock, AR (KLZK), launched 00:00Z, 1.0 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: 1174 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1460 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 46 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 KMEG 260102
FFWMEM
ARC021-MOC069-260230-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
800 PM CDT SAT MAY 25 2002

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLOOD WARNING FOR...
  EASTERN CLAY COUNTY IN EASTERN ARKANSAS
  NORTHERN DUNKLIN COUNTY IN SOUTHEAST MISSOURI

* UNTIL 930 PM CDT.

* AT 755 PM CDT...WEATHER RADAR INDICATED VERY HEAVY RAIN BETWEEN    
  PIGGOTT AND HOLCOMB. RADAR RAINFALL ESTIMATES INDICATED TWO TO     
  THREE INCHES OF RAINFALL DURING THE PAST HOUR. ALSO SPOTTERS       
  REPORTED SOME COUNTY ROADS COVERED BY WATER NEAR HOLCOMB.

* CITIES AFFECTED THROUGH 930 PM CDT INCLUDE...
  HOLCOMB...CAMPBELL...ST. FRANCIS...RECTOR...POLLARD...PIGGOTT...
  GREENWAY

.EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...PONDING OF WATER ON HIGHWAYS AND UNDERPASSES. 
ADDITIONALLY...FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND 
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

.BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...
ACT QUICKLY.

.STAY TUNED TO THIS NATIONAL WEATHER SERVICE BROADCAST FOR THE LATEST
UPDATES AND INFORMATION. TO REPORT FLOODING ONLY...CALL
1-800-432-0875.

LAT...LON 3650 8998 3629 8998 3624 9031 3650 9033

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 7:49 PM CDT	Severe Thunderstorm Warning	MEG	Crittenden	26 min
May 25, 8:35 PM CDT	Severe Thunderstorm Warning	MEG	St. Francis	40 min
May 25, 7:01 PM CDT	Severe Thunderstorm Warning	MEG	Dunklin	44 min

Nearby

Flash Flood Warnings in Arkansas, 2002 Flash Flood Warnings in Missouri, 2002 Every flash flood warning in 2002

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.