Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 191, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 23, 2001, 11:06 PM CDT for Sebastian County, Arkansas. It was in force for 54 min. No storm report in the archive falls 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.
The facts
- Issued
- May 23, 2001, 11:06 PM CDT (04:06 UTC)
- Expired
- May 24, 2001, 12:00 AM CDT
- In force
- 54 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Sebastian County, AR
The radar
The Western Arkansas radar (KSRX), 13 km from the middle of the area, began a volume at 04:10 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
Springfield, MO (KSGF), launched 00:00Z, 4.1 hours before the alert went out and 184 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
- 120 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 2214 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 158 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
520 WUUS54 KTSA 240407 SVRTUL ARC131-240500- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1106 PM CDT WED MAY 23 2001 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS * UNTIL MIDNIGHT CDT * AT 1106 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTHWEST OF BONANZA...MOVING EAST AT 60 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...BLOOMER... JENNY LIND...FT CHAFFEE...BONANZA...MANSFIELD...EXCELSIOR... BURNVILLE...WASHBURN...MIDLAND...HUNTINGTON...LAVACA...BARLING... GREENWOOD...HACKETT...HARTFORD AND FORT SMITH. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. LAT...LON 3545 9409 3542 9444 3493 9444 3517 9403
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 May 23, 9:35 PM CDT, 1 hour 31 minutes earlier.
Area forecast discussion, May 23, 9:35 PM CDT, 1 hour 31 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 935 PM CDT WED MAY 23 2001 LONG-LIVED FAST-MOVING LP SUPERCELL JUST NOW EXITING THE EXTREME SRN EXTEND OF OUR CWA AND HAS BEEN ON A WEAKENING TREND OVER THE PAST HOUR. RECEIVED SEVERAL REPORTS OF 60 MPH GUSTS/WIND DAMAGE ALONG ITS PATH. COLD FRONT IS ABOUT HALFWAY THROUGH ERN OK AT THIS TIME...WITH SCT SHRA/TSRA ALONG AND BEHIND THIS BOUNDARY. SHORTWAVE/SPEED MAX CURRENTLY ROTATING THROUGH SERN KS AND WILL ENTER NE OK SHORTLY. ALSO NOTED THAT SLIGHTLY HIGHER SFC DEWPOINTS ARE PUSHING INTO SERN OK. ISOLATED GUSTY WINDS WILL STILL BE POSSIBLE WITH THESE STORMS...BUT LOSS OF HEATING SHUD RESULT IN A GRADUAL WEAKENING TREND. WILL KEEP AN EYE ON IT. WILL HAVE AN UPDATED ZONE PACKAGE OUT BETWEEN 945-1000 PM. FCSTID = 18 .TSA... AR...NONE. OK...NONE.
In the hours before
Special weather statement, May 23, 7:45 PM CDT, 3 hours 21 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-211100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 745 PM CDT WED MAY 23 2001 ...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THIS EVENING ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS... ISOLATED THUNDERSTORMS HAVE RAPIDLY DEVELOPED THIS EVENING ALONG A COLD FRONT PUSHING SOUTH INTO NORTHEAST OKLAHOMA. SOME OF THESE STORMS HAVE ALREADY REACHED SEVERE LEVELS WITH DIME SIZE HAIL AND DAMAGING WINDS REPORTED IN CREEK AND OKFUSKEE COUNTIES. THE THREAT FOR ISOLATED SEVERE STORMS WILL CONTINUE THROUGH THE EVENING HOURS...MAINLY SOUTH OF INTERSTATE 44. THESE STORMS WILL BE CAPABLE OF PRODUCING DIME SIZE HAIL AND WIND GUSTS TO 60 MPH. THE THUNDERSTORM ACTIVITY SHOULD BEGIN TO DECREASE IN COVERAGE AND INTENSITY BY LATE EVENING...WITH THE LOSS OF DAYTIME HEATING. .SPOTTER ACTIVATION... SPOTTER ACTIVATION WILL NOT BE REQUIRED GIVEN THE ISOLATED NATURE OF THE SEVERE STORMS EXPECTED. THREAT TABLE VALID THROUGH 1200 UTC MONDAY AREA 1...MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THUNDERSTORM PROBABILITY...20 SEVERE PROBABILITY IF STORMS OCCUR...40 SIGNIFICANT SEVERE PROBABILITY IF STORMS OCCUR...5 THREAT AREAS DEFINE THE GREATEST RISK. PROBABILITIES ARE IN PERCENT. SIGNIFICANT SEVERE IS DEFINED AS F1 OR GREATER WIND/TORNADO DAMAGE AND /OR GOLFBALL SIZE HAIL OR LARGER. RELATED GRAPHICAL INFORMATION CAN BE FOUND AT: WWW.SRH.NOAA.GOV/TULSA.
Local storm report, May 23, 9:47 PM CDT, 1 hour 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
947 PM CDT WED MAY 23 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0700 PM BRISTOW OK 60 MPH TSTM GUST
05/23/01 CREEK SOME TREE DAMAGE
0715 PM 5 NE WELTY OK .75 INCH HAIL
05/23/01 OKFUSKEE
0830 PM HARTSHORNE OK 60 MPH TSTM GUST
05/23/01 PITTSBURG
0830 PM DAMON OK 60 MPH TSTM GUST
05/23/01 LATIMERLocal storm report, May 23, 9:59 PM CDT, 1 hour 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
959 PM CDT WED MAY 23 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
074 6 PM HANNA OK WIND DAMAGE
05/23/01 MCINTOSH ROOF BLOWN OFF BARNNearby
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.