Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 352, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 25, 2001, 9:58 PM CDT for Washington County, Arkansas. It was in force for 62 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Aug 25, 2001, 9:58 PM CDT (02:58 UTC)
- Expired
- Aug 25, 2001, 11:00 PM CDT
- In force
- 62 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Washington County, AR
The radar
The Western Arkansas radar (KSRX), 102 km from the middle of the area, began a volume at 03:00 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 25, 10:30 PM CDT | Thunderstorm Wind 52 E | Farmington, AR | Thunderstorm winds estimated at 60 miles an hour blew down large tree limbs. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 3.0 hours before the alert went out and 95 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
- 2085 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1505 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
254
WUUS54 KTSA 260258
SVRTUL
ARC007-143-OKC041-260400-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
958 PM CDT SAT AUG 25 2001
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN DELAWARE COUNTY IN NORTHEAST OKLAHOMA
BENTON COUNTY IN NORTHWEST ARKANSAS
WASHINGTON COUNTY IN NORTHWEST ARKANSAS
* UNTIL 1100 PM CDT
* AT 958 PM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
A LINE EXTENDING FROM 3 MILES NORTHEAST OF HIGHFILL TO COLCORD...
MOVING SOUTHEAST AT 10 MPH.
* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...TONTITOWN...
CINCINNATI...GREENLAND...FARMINGTON...ELKINS...PRAIRIE GROVE...
LINCOLN...WEST FORK...SPRINGDALE...FAYETTEVILLE...DECATUR...CAVE
SPRINGS...HIGHFILL...SPRINGTOWN...GRAVETTE...MAYSVILLE...GENTRY...
LOWELL...ROGERS...SILOAM SPRINGS...BENTONVILLE...COLCORD...KANSAS
AND JAY.
HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN
THE WARNED AREA.
LAT...LON 3641 9414 3644 9481 3619 9483 3617 9457
3582 9448 3600 9397What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 25, 8:45 PM CDT, 1 hour 13 minutes earlier.
Area forecast discussion, Aug 25, 8:45 PM CDT, 1 hour 13 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 845 PM CDT SAT AUG 25 2001 UPDATED ZONES TO WORD PCP AS SCT NEAR FRONT. CONVECTION DECIDED TO GET GOING ALONG THE BOUNDARY AFTER SUNSET AND EXTENDS FROM SW MO/NW CORNER OF ARKANSAS TO BIG COMPLEX NEAR OKC. SVR THREAT IS EXPECTED TO DECREASE DURING THE NEXT FEW HOURS...BUT PCP MAY BECOME MORE WIDESPREAD. WILL HAVE TO MONITOR AND MAY NEED TO UPDATE LATER TO RAISE POPS IN THE SOUTH. /13 .TSA... AR...NONE. OK...NONE.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 9:58 PM CDT | Severe Thunderstorm Warning | TSA | Benton | 62 min |
| Aug 25, 11:42 PM CDT | Severe Thunderstorm Warning | TSA | Crawford, Washington | 63 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.