Alert archive / Oklahoma / Flash Flood Warnings in 2002
Flash Flood Warning 5, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at Apr 7, 2002, 3:39 PM CDT for 6 counties in Oklahoma. 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 7, 2002, 3:39 PM CDT (20:39 UTC)
- Expired
- Apr 7, 2002, 6:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Norman, OK
- Area
- Counties, with a storm outline in the text
Counties Atoka County, OK, Bryan County, OK, Coal County, OK, Johnston County, OK, Love County, OK, Marshall County, OK
The radar
The Norman radar (KTLX), 142 km from the middle of the area, began a volume at 20:36 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
Norman, OK (KOUN), launched 12:00Z, 8.7 hours before the alert went out and 135 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 460 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 368 m²/s²
- 0-3 km storm-relative helicity
- 553 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KOUN 072039
FFWOKC
OKC005-013-029-069-085-095-072330-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORMAN OK
335 PM CDT SUN APR 7 2002
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* FLASH FLOOD WARNING FOR...
ATOKA COUNTY IN SOUTHEAST OKLAHOMA
BRYAN COUNTY IN SOUTHEAST OKLAHOMA
COAL COUNTY IN SOUTHEAST OKLAHOMA
JOHNSTON COUNTY IN SOUTHEAST OKLAHOMA
MARSHALL COUNTY IN SOUTHEAST OKLAHOMA
LOVE COUNTY IN SOUTHERN OKLAHOMA
* UNTIL 630 PM CDT
* AT 335 PM CDT...DOPPLER RADAR INDICATES THAT VERY HEAVY RAIN WAS
CONTINUING TO FALL ACROSS A LARGE PORTION OF SOUTHEAST OKLAHOMA.
BETWEEN 2 AND 3 INCHES OF RAIN HAS FALLEN ACROSS THIS AREA TODAY AND
AN ADDITIONAL 1 TO 2 INCHES OR RAIN IS POSSIBLE OVER THE NEXT ONE TO
TWO HOURS. ALL THE ACTIVITY WILL MOVE TOWARD THE NORTHEAST AT 40
MPH.
* LOCATIONS IN THE WARNING INCLUDE ACHILLE...ATOKA...BENNINGTON...
CENTRAHOMA...COALGATE...COLEMAN...DURANT...KINGSTON...LANE...LEBANON
...LEHIGH...MADILL...MARIETTA...MILBURN...MILL CREEK...PONTOTOC...
RAVIA...REAGAN...RUBOTTOM...RUSSETT...STRINGTOWN...TISHOMINGO...
TUPELO...TUSHKA...UTICA...WAPANUCKA AND WOODVILLE
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARM LANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO
HIGHER GROUND.
LAT...LON 3388 9747 3388 9708 3389 9657 3376 9632
3391 9605 3456 9574 3474 9635 3450 9655
3450 9682 3409 9694 3405 9752
$$
30The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 6:30 PM CDT | Severe Thunderstorm Warning | OUN | Jefferson | 45 min |
| Apr 7, 6:31 PM CDT | Flash Flood Warning | OUN | Atoka, Bryan, Coal, Johnston, Marshall | 3 hr |
Nearby
Flash Flood Warnings in Oklahoma, 2002Every 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.