Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 82, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 15, 2001, 3:03 AM CDT for Crawford County, Franklin County, Arkansas. It was in force for 57 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
- Apr 15, 2001, 3:03 AM CDT (08:03 UTC)
- Expired
- Apr 15, 2001, 4:00 AM CDT
- In force
- 57 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Crawford County, AR, Franklin County, AR
The radar
The Western Arkansas radar (KSRX), 35 km from the middle of the area, began a volume at 08:04 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 |
|---|---|---|---|
| Apr 15, 3:35 AM CDT | Thunderstorm Wind | Ozark, AR | Thunderstorm winds blew down a large tree limb. |
| Apr 15, 3:46 AM CDT | Hail 0.88 | Mulberry, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 15, 1:00 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 8.1 hours before the alert went out and 151 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
- 56 J/kg
- Mixed-layer CIN
- -101 J/kg
- Mixed-layer LCL
- 1245 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 150803 SVRTUL ARC033-047-OKC135-150900- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 303 AM CDT SUN APR 15 2001 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA CRAWFORD COUNTY IN NORTHWEST ARKANSAS FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS * UNTIL 400 AM CDT * AT 302 AM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 27 MILES EAST OF CASS TO 2 MILES NORTHWEST OF NATURAL DAM TO 7 MILES NORTHWEST OF MARBLE CITY...MOVING SOUTHEAST AT 45 MPH. * SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...LEE CREEK... RUDY...FIGURE FIVE...DYER...CHESTER...NATURAL DAM...CEDARVILLE... ALMA...VAN BUREN...MOUNTAINBURG...WIEDERKEHR VILLAGE...CASS... FERN...ALTUS...MULBERRY...OZARK...MOFFETT...MARBLE CITY...SHORT... BRUSHY...VIAN...ROLAND...MULDROW...GANS AND SALLISAW. WIND GUSTS TO 70 MPH CAN BE EXPECTED IN THE WARNED AREA. THIS IS A DANGEROUS STORM. IF YOU ARE NEAR ITS PATH YOU SHOULD PREPARE FOR VERY LARGE HAIL AND STRONG DAMAGING STRAIGHT LINE WINDS. SEEK SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS LAT...LON 3576 9369 3562 9513 3535 9482 3542 9377
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 Apr 14, 9:50 PM CDT, 5 hours 13 minutes earlier.
Area forecast discussion, Apr 14, 9:50 PM CDT, 5 hours 13 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 950 PM CDT SAT APR 14 2001 THE QUESTION STILL REMAINS HOW FAR SOUTH WILL THE STORM COMPLEX GO? ONE ISOLATED SUPERCELL HAS BEEN MOVING SLIGHTLY SOUTH OF EAST ACROSS SOUTHERN KANSAS ALL EVENING...WHILE A CLUSTER OF STORMS HAS RECENTLY DEVELOPED TO THE WEST OF THIS STORM. IT STILL APPEARS THAT MOST OF NORTHEAST OKLAHOMA MAY BE SPARED...BUT AREAS NEAR THE KANSAS BORDER WILL PROBABLY FEEL THE HEAT IN THE NEXT FEW HOURS. THE 00Z MESOETA KEEPS MOST OF THE PRECIPITATION ALONG AND NORTH OF THE KANSAS BORDER THROUGH 6Z AND THEN BACK BUILDS IT INTO A MORE WESTERLY LOW-LEVEL JET ACROSS FAR NORTHEAST OKLAHOMA AND EVENTUALLY NORTHWEST ARKANSAS. THIS SCENARIO IS IN LINE WITH 18Z RUN AND IN GENERAL MAKES SENSE. WILL THEREFORE INCREASE POPS TO CATEGORICAL IN THE NORTHEAST ZONES AND TAPER THEM TO CHANCE NEAR THE RED RIVER. A FEW SHOWERS REMAIN NEAR THE RED RIVER AT THIS TIME...BUT MOST OF ACTIVITY HAS MOVED EAST OF THAT AREA. UPDATED ZONES WILL BE SENT AROUND 10 PM SO THAT WATCH HEADLINES CAN BE CHANGED APPROPRIATELY. THE WATCH IN SOUTHEAST OKLAHOMA WILL EXPIRE ANDl A NEW WATCH FOR NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS WILL BEGIN AT THAT TIME. FCSTID = 19 .TSA... AR...NONE. OK...NONE.
In the hours before
Local storm report, Apr 15, 2:02 AM CDT, 1 hour 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
202 AM CDT SUN APR 15 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0151 AM HIGHFILL AR 86 MPH TSTM GUST
04/15/01 BENTON ASOS REPORTLocal storm report, Apr 15, 2:04 AM CDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED WIND SPEED...
NATIONAL WEATHER SERVICE TULSA OK
204 AM CDT SUN APR 15 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
..G..COUNTY LOCATION....
0151 AM HIGHFILL AR 99 MPH TSTM GUST
04/15/01 BENTON ASOS REPORTLocal storm report, Apr 15, 2:16 AM CDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
216 AM CDT SUN APR 15 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0209 AM BROKEN ARROW OK 1 INCH HAIL
04/15/01 TULSA QUARTER HAIL REPORTED
AT 81ST AND ELM
[EMERGENCY MANAGER]
(Local storm report, Apr 15, 2:19 AM CDT, 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
219 AM CDT SUN APR 15 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0142 AM 3 N LOCUST GROVE OK 65 MPH TSTM GUST
04/15/01 MAYES SPOTTER REPORTLocal storm report, Apr 15, 2:33 AM CDT, 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
233 AM CDT SUN APR 15 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0218 AM BROKEN ARROW OK .75 INCH HAIL
04/15/01 TULSA 91ST AND MAIN SPOTTER
REPORT
0220 AM 2 S GLENPOOL OK .75 INCH HAIL
04/15/01 TULSA DIME HAIL SPOTTER REPORT
0223 AM COWETA OK .75 INCH HAIL
04/15/01 WAGONER DIME HAIL SPOTTER REPORTLocal storm report, Apr 15, 2:58 AM CDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
258 AM CDT SUN APR 15 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0105 AM BERNICE OK WIND DAMAGE
04/15/01 DELAWARE 1 FOOT TREE BLOCKING
TRAFFIC ON HWY 85A IN
DOWNTOWN BERNICE EM
0105 AM 2 NW ZENA OK WIND DAMAGE
04/15/01 DELAWARE 2 FOOT TREE BLOWN DOWN
LAYING OVER ROADWAY EMThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 1:27 AM CDT | Severe Thunderstorm Warning | TSA | Benton | 48 min |
| Apr 15, 2:05 AM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 40 min |
| Apr 15, 2:05 AM CDT | Severe Thunderstorm Warning | TSA | Carroll, Madison | 40 min |
| Apr 15, 3:54 AM CDT | Severe Thunderstorm Warning | TSA | Franklin, Sebastian | 66 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.