Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 410, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Sep 8, 2001, 6:16 PM CDT for Franklin County, Arkansas. It was in force for 44 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
- Sep 8, 2001, 6:16 PM CDT (23:16 UTC)
- Expired
- Sep 8, 2001, 7:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Franklin County, AR
The radar
The Western Arkansas radar (KSRX), 65 km from the middle of the area, began a volume at 23:20 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 |
|---|---|---|---|
| Sep 8, 6:40 PM CDT | Thunderstorm Wind 61 E | White Oak, AR | Thunderstorm winds estimated at 70 miles an hour blew down a large tree. |
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, 11.3 hours before the alert went out and 136 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
- 9 J/kg
- Mixed-layer CIN
- -295 J/kg
- Mixed-layer LCL
- 527 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
992 WUUS54 KTSA 082317 SVRTUL ARC047-090000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 616 PM CDT SAT SEP 8 2001 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS * UNTIL 700 PM CDT * AT 616 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF CASS...MOVING NORTHEAST AT 25 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...CASS AND REDDING. HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 65 MPH CAN BE EXPECTED IN THE WARNED AREA. LAT...LON 3576 9391 3551 9390 3557 9370 3579 9369
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 Sep 8, 3:45 PM CDT, 2 hours 31 minutes earlier.
Area forecast discussion, Sep 8, 3:45 PM CDT, 2 hours 31 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 345 PM CDT SAT SEP 8 2001 ELEVATED ACTIVITY FIRING IN VICINITY OF SHALLOW SFC BOUNDARY IN AN AREA WHERE STEEP LAPSE RATES ARE IN PLACE ABOVE THE CLOUDY COOL LAYER. EXPECT ADDITIONAL ACTIVITY TO DEVELOP FURTHER NORTH AND WEST TONIGHT AS A SECOND UPPER LEVEL SYSTEM APPROACHES THE FA FROM CO/KS. HIGH PWS(NEAR 2.00)...COMBINED WITH AMPLE 925-850 FLOW LIFTING OVER THE NEARLY STATIONARY BOUNDARY WILL LIKELY RESULTING IN TRAINING ECHOES AM CONCERNED ABOUT A HEAVY RAIN SITUATION SETTING UP OVER SE OK/NW AR. FFG 3 HR VALUES HOWEVER REMAIN HIGH OVER THE AREA IN QUESTION...SO AFTER COORD. WITH OUN HAVE DECIDED TO LET IT GO FOR NOW. SECONDARY PUSH OF COOLER AIR/SUBSIDENCE SHOULD SWEEP MOISTURE EAST OF THE ENTIRE FA BY LATE TOMORROW AFTERNOON IF NOT SOONER. WILL PROBABLY CONFINE POPS TO A MORNING WORDING...WITH HIGHEST POPS IN THE EAST. HIGH PRESSURE SETTLING OVER THE AREA BY SUNDAY NIGHT WILL RESULT IN RELATIVELY CHILLY READINGS NOT SEEN IN SOME TIME OVER THE AREA. LIGHT WINDS AND CLEAR SKIES WILL LIKELY RESULT IN PATCHY FOG IN AREAS THAT WERE HIT BY THIS WEEKENDS RAIN BY MONDAY MORNING. IN THE EXTENDED...UPPER RIDGE BEGINS BUILDING BACK IN THROUGH OUT NEXT WEEK...WITH ZONAL FLOW SETTING UP OVER THE NRN U.S WILL KEEP EXTENDED PRETTY MUCH AS IS AND ADD A WARM AND DRY DAY 7 AS WELL. FCSTID = 23 .PRELIMINARY NUMBERS... TUL 65 79 55 83 / 90 20 0 0 FSM 68 80 55 84 / 90 60 0 0 MLC 66 80 54 85 / 90 30 0 0 BVO 63 78 51 82 / 90 20 0 0 FYV 65 73 50 78 / 90 60 0 0 BYV 65 73 50 78 / 90 60 0 0 MIO 64 74 52 79 / 90 50 0 0 MKO 65 79 55 83 / 90 20 0 0 F10 65 79 55 83 / 90 20 0 0 HHW 66 81 56 85 / 90 30 0 0 .TSA... AR...NONE. OK...NONE.
In the hours before
Special weather statement, Sep 8, 1:00 PM CDT, 5 hours 16 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-091100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT SAT SEP 8 2001 ...A FEW SEVERE THUNDERSTORMS ARE EXPECTED IN EASTERN OKLAHOMA AND NORTHWEST ARKANSAS LATER TODAY AND TONIGHT... EARLY THIS AFTERNOON A SURFACE BOUNDARY HAD BECOME A LITTLE BETTER DEFINED OVER SOUTHERN OKLAHOMA FROM NORTH OF ARDMORE TO SOUTH OF MCALESTER. FROM THERE THE BOUNDARY REMAINS RATHER ILL-DEFINED AS IT SNAKES ITS WAY INTO WESTERN MISSOURI. THIS BOUNDARY WILL LIKELY BE THE INITIAL FOCUS FOR SCATTERED THUNDERSTORMS TO DEVELOP LATER THIS AFTERNOON OR THIS EVENING. LATER TONIGHT ANOTHER UPPER LEVEL STORM SYSTEM WILL MOVE OUT OF THE ROCKIES AND INTO THE PLAINS...AND SHOWERS AND THUNDERSTORMS WILL BECOME MORE NUMEROUS. A FEW SEVERE STORMS ARE EXPECTED FROM LATER TODAY THROUGH TONIGHT WITH LARGE HAIL UP TO GOLFBALL SIZE...AND DAMAGING WINDS OF UP TO 70 MILES AN HOUR POSSIBLE. HEAVY RAINFALL MAY ALSO BECOME A PROBLEM OVERNIGHT AS THUNDERSTORMS MAY TRACK ACROSS THE SAME AREAS. .SPOTTER ACTIVATION... EMERGENCY MANAGEMENT AGENCIES AND STORM SPOTTER GROUPS WILL LIKELY REQUIRE ACTIVATION AGAIN LATER TODAY THROUGH TONIGHT. .DISCUSSION... A SURFACE BOUNDARY HAS BECOME BETTER DEFINED OVER SOUTHERN OKLAHOMA SINCE THIS MORNING AND REMAINS NEARLY STATIONARY FROM NEAR ARDMORE TO SOUTH OF MCALESTER. CONVERGENCE ALONG THIS BOUNDARY AND AN INCREASINGLY UNSTABLE ATMOSPHERE SOUTH OF THE FRONT WILL LEAD TO THE DEVELOPMENT OF THUNDERSTORMS ALONG AND NEAR THE FRONT LATER THIS AFTERNOON AND THIS EVENING. PERSISTENT CLOUD COVER HAS THUS FAR LIMITED THE AMOUNT OF INSTABILITY...BUT SCATTERED THUNDERSTORMS WILL BE POSSIBLE WITH THE POTENTIAL FOR A FEW TO BECOME SEVERE. LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN THREAT. LATER TONIGHT...AS ANOTHER UPPER LEVEL DISTURBANCE APPROACHES THE AREA...SHOWERS AND THUNDERSTORMS WILL BECOME MORE NUMEROUS. ADDITIONAL SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS INTO THE EARLY NIGHTTIME HOURS...THEN THE MAIN EMPHASIS WILL SHIFT FROM SEVERE WEATHER TO HEAVY RAINFALL AS THUNDERSTORMS TRACK ACROSS THE SAME AREAS REPEATEDLY. THREAT TABLE VALID THROUGH 7 AM SUNDAY THREAT AREA 1...ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THUNDERSTORM PROBABILITY...100 SEVERE PROBABILITY IF STORMS OCCUR...80 SIGNIFICANT SEVERE PROBABILITY IF STORMS OCCUR...40 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, Sep 8, 1:04 PM CDT, 5 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
104 PM CDT SAT SEP 08 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0655 PM PAWNEE OK WIND DAMAGE
09/07/01 PAWNEE TREE BLOWN DOWN AND
POWER POLES DOWN. RPTD
BY PD.
1035 PM TAHLEQUAH OK WIND DAMAGE
09/07/01 CHEROKEE NUMEROUS TREES BLOWN
DOWN. RPTD BY S.O.
1130 PM 10 W STIGLER OK WIND DAMAGE
09/07/01 HASKELL LARGE TREE LIMBS DOWN.
RPTD BY S.O.
1135 PM 3 S STILWELL OK 60 MPH TSTM GUST
09/07/01 ADAIR RPTD BY S.O.
1255 AM COUNTY WIDE AR WIND DAMAGE
09/08/01 FRANKLIN TREES BLOWN DOWN. RPTD
BY S.O.Local storm report, Sep 8, 1:08 PM CDT, 5 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
108 PM CDT SAT SEP 08 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1110 PM GOWEN OK 60 MPH TSTM GUST
09/07/01 PITTSBURG RPTD BY P.O.
1115 PM KIOWA OK WIND DAMAGE
09/07/01 PITTSBURG TRAILER HOUSE BLOWN
OVER. RPTD BY LATIMER
CO S.O.
1245 AM COUNTY WIDE AR WIND DAMAGE
09/08/01 WASHINGTON TREES AND POWER PLOES
DOWN. RPTD BY S.O.
0115 AM COUNTY WIDE AR WIND DAMAGE
09/08/01 MADISON LARGE TREES BLOWN DOWN.
RPTD BY S.O.
0125 AM COUNTY WIDE AR WIND DAMAGE
09/08/01 CARROLL TREES AND POWER POLES
DOWN. RPTD BY S.O.Local storm report, Sep 8, 1:11 PM CDT, 5 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
111 PM CDT SAT SEP 08 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0845 PM TALALA OK 70 MPH TSTM GUST
09/07/01 ROGERS RPTD BY PD.
0900 PM WELCH OK WIND DAMAGE
09/07/01 CRAIG TREE BLOWN DOWN. RPTD
BY P.O.
0915 PM COWETA OK WIND DAMAGE
09/07/01 WAGONER TREES BLOWN DOWN. RPTD
BY SPOTTER.
1115 PM EUFAULA OK 60 MPH TSTM GUST
09/07/01 MCINTOSH RPTD BY LOCAL RADIO
STATION.
1145 PM SILOAM SPGS AR WIND DAMAGE
09/07/01 BENTON SEVERAL LARGE TREES
DOWN. RPTD BY S.O.Local storm report, Sep 8, 1:23 PM CDT, 4 hours 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
123 PM CDT SAT SEP 08 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0920 PM OKEMAH OK WIND DAMAGE
09/07/01 OKFUSKEE UTILITY BARNS DAMAGES
ALONG WITH TREES AND
POWER POLES. RPTD BY EM.
1000 PM WAGONER OK 60 MPH TSTM GUST
09/07/01 WAGONER RPTD BY S.O.
1010 PM 22 W EUFAULA OK 75 MPH TSTM GUST
09/07/01 MCINTOSH RPTD BY TOLL GATE STAFF.
1015 PM 2 N MUSKOGEE OK WIND DAMAGE
09/07/01 MUSKOGEE LARGE BILLBOARD SIGN
BLOWN DOWN. RPTD BY S.O.
1120 PM MARBLE CITY OK WIND DAMAGE
09/07/01 SEQUOYAH LARGE TREE LIMBS DOWN.
RPTD BY PUBLIC.
1200 AM MC CURTAIN OK 60 MPH TSTM GUST
09/08/01 HASKELL RPTD BY NWS COOP OBSVR.
1220 AM PANAMA OK WIND DAMAGE
09/08/01 LE FLORE LARGE TREE BLOWN DOWN.
RPTD BY S.O.
1230 AM COUNTY WIDE AR WIND DAMAGE
09/08/01 CARROLL LARGE TREES BLOWN DOWN.
RPTD BY S.O.
1245 AM COUNTY WIDE AR WIND DAMAGE
09/08/01 MADISON TREES BLOWN DOWN. RPTD
BY S.O.Local storm report, Sep 8, 1:29 PM CDT, 4 hours 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
129 PM CDT SAT SEP 08 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0915 PM WELCH OK 60 MPH TSTM GUST
09/07/01 CRAIG RPTD BY SPOTTER.
0930 PM MIAMI OK WIND DAMAGE
09/07/01 OTTAWA TREES BLOWN DOWN RPTD
BY WELCH P.O.
1030 PM COUNCIL HILL OK .75 INCH HAIL
09/07/01 MUSKOGEE RPTD BY P.O.
1035 PM CHECOTAH OK 60 MPH TSTM GUST
09/07/01 MCINTOSH RPTD BY PD.
1105 PM OKAY OK .75 INCH HAIL
09/07/01 WAGONER RPTD BY STATE PARK
OFFICIAL.
1250 AM WELCH OK .75 INCH HAIL
09/08/01 CRAIG RPTD BY P.O.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 10:14 PM CDT | Severe Thunderstorm Warning | TSA | Benton | 61 min |
| Sep 7, 11:38 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 67 min |
| Sep 7, 11:59 PM CDT | Severe Thunderstorm Warning | TSA | Crawford | 61 min |
| Sep 8, 12:06 AM CDT | Severe Thunderstorm Warning | TSA | Sebastian | 54 min |
| Sep 8, 12:11 AM CDT | Severe Thunderstorm Warning | TSA | Carroll, Madison | 64 min |
| Sep 8, 12:36 AM CDT | Severe Thunderstorm Warning | TSA | Franklin | 69 min |
| Sep 8, 12:44 AM CDT | Severe Thunderstorm Warning | TSA | Washington | 31 min |
| Sep 8, 1:13 AM CDT | Severe Thunderstorm Warning | TSA | Carroll, Madison | 47 min |
| Sep 8, 5:37 PM CDT | Severe Thunderstorm Warning | TSA | Crawford, Franklin | 38 min |
| Sep 8, 6:30 PM CDT | Severe Thunderstorm Warning | TSA | Sebastian | 60 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.