Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 360, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 29, 2001, 1:57 PM CDT for Carroll County, Arkansas. It was in force for 48 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, 1:57 PM CDT (18:57 UTC)
- Expired
- Aug 29, 2001, 2:45 PM CDT
- In force
- 48 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Carroll County, AR
The radar
The Springfield radar (KSGF), 103 km from the middle of the area, began a volume at 18:57 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, 2:05 PM CDT | Hail 0.88 | Green Forest, AR | |
| Aug 29, 2:50 PM CDT | Hail 0.75 | Eureka Spgs, AR |
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, 7.0 hours before the alert went out and 70 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.
967 WUUS54 KTSA 291857 SVRTUL ARC015-291945- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 157 PM CDT WED AUG 29 2001 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CARROLL COUNTY IN NORTHWEST ARKANSAS * UNTIL 245 PM CDT * AT 157 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES EAST OF RULE...MOVING NORTHWEST AT 20 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...GRANDVIEW... URBANETTE...RULE...RUDD...GREEN FOREST...EUREKA SPRINGS AND BERRYVILLE. 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 3617 9345 3632 9326 3651 9358 3641 9386
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 27 minutes earlier.
Area forecast discussion, Aug 29, 10:30 AM CDT, 3 hours 27 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.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 2:23 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Madison | 52 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.