Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 361, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 29, 2001, 2:23 PM CDT for Benton County, Madison County, Arkansas. It was in force for 52 min. 2 reports 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 29, 2001, 2:23 PM CDT (19:23 UTC)
- Expired
- Aug 29, 2001, 3:15 PM CDT
- In force
- 52 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Benton County, AR, Madison County, AR
The radar
The Western Arkansas radar (KSRX), 112 km from the middle of the area, began a volume at 19:23 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 29, 2:40 PM CDT | Hail 0.75 | Forum, AR | |
| Aug 29, 3:00 PM CDT | Thunderstorm Wind 61 E | Garfield, AR | Thunderstorm winds estimated at 70 miles per hour blew trees down and onto power lines causing power outages. |
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 12:00Z, 7.4 hours before the alert went out and 77 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
- 1440 J/kg
- Mixed-layer CIN
- -161 J/kg
- Mixed-layer LCL
- 1367 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
182 WUUS54 KTSA 291924 SVRTUL ARC007-087-292015- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 223 PM CDT WED AUG 29 2001 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN BENTON COUNTY IN NORTHWEST ARKANSAS NORTHERN MADISON COUNTY IN NORTHWEST ARKANSAS * UNTIL 315 PM CDT * AT 222 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES WEST OF FORUM...MOVING NORTHWEST AT 20 MPH. OTHER THUNDERSTORMS WERE STRENGTHENING BETWEEN HUNTSVILLE AND KINGSTON IN MADISON COUNTY...AND COULD ALSO BECOME SEVERE. * SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...ROGERS... LOWELL...WAR EAGLE...GARFIELD...HUNTSVILLE...MARBLE...HINDSVILLE... FORUM AND CLIFTY. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. LAT...LON 3604 9370 3617 9361 3651 9402 3630 9423
What 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 29, 10:30 AM CDT, 3 hours 53 minutes earlier.
Area forecast discussion, Aug 29, 10:30 AM CDT, 3 hours 53 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1030 AM CDT WED AUG 29 2001 CLOUDS CONTINUE TO DRIFT NORTHWARD FROM TEXAS INTO SOUTHERN OKLAHOMA. THIS IS HANDLED WELL IN THE CURRENT WORDING. PRESENT TEMPERATURE TRENDS ARE ABOUT THE SAME AS TUESDAY. HOWEVER...THE INCREASING CLOUDS SHOWN IN SATELLITE IMAGERY SUPPORTS THE CURRENT HIGH TEMP FORECASTS...WHICH ARE A FEW DEGREES COOLER THAN TUESDAY. WILL STAY WITH POPS...BUT PUSH BACK THE TIMING IN THE RDF FOR THE NORTHERN ZONES. FTW RADAR INDICATES SHOWERS OR SPRINKLES ALREADY MOVING INTO SOUTHERN OKLAHOMA JUST WEST OF CHOCTAW COUNTY. HOWEVER...EXPECT THESE TO WEAKEN THROUGH NOON. SIGNIFICANT BREAK IN CLOUDS JUST SOUTH OF THESE SHOWERS JUSTIFIES THE LOW POPS. FCSTID = 2 .TSA... AR...NONE. OK...NONE.
In the hours before
Local storm report, Aug 29, 2:08 PM CDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
208 PM CDT WED AUG 29 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0205 PM GREEN FOREST AR .88 INCH HAIL
08/29/01 CARROLL GREEN FOREST P.D.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 1:57 PM CDT | Severe Thunderstorm Warning | TSA | Carroll | 48 min |
| Aug 29, 2:45 PM CDT | Severe Thunderstorm Warning | TSA | Carroll | 30 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.