Alert archive / Arkansas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 242, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 9, 1997, 3:22 PM CDT for Carroll County, Arkansas. It was in force for 53 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 9, 1997, 3:22 PM CDT (20:22 UTC)
- Expired
- Jul 9, 1997, 4:15 PM CDT
- In force
- 53 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Carroll County, AR
The radar
The Springfield radar (KSGF), 100 km from the middle of the area, began a volume at 20:25 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 |
|---|---|---|---|
| Jul 9, 3:45 PM CDT | Thunderstorm Wind | Beaver, AR | Isolated severe thunderstorms developed in extreme northwest Arkansas during the afternoon of July 9th and produced damaging winds. Large tree limbs were blown down 1 mile north of Rogers and in Beaver. |
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
Topeka, KS (KTOP), launched 12:00Z, 8.4 hours before the alert went out and 349 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
- 277 J/kg
- Mixed-layer CIN
- -198 J/kg
- Mixed-layer LCL
- 1532 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 092022 RRA SVRTUL ARC015-092115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 322 PM CDT WED JUL 9 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 415 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST ARKANSAS ...NORTHWESTERN CARROLL COUNTY AT 322 PM A SEVERE THUNDERSTORM WAS LOCATED NEAR BEAVER AND HOLIDAY ISLAND. THE STORM WAS DRIFTING SOUTHEAST AT 5 TO 10 MPH TOWARD EUREKA SPRINGS. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. DURING THE STORM MOVE INDOORS AND STAY AWAY FROM WINDOWS. TO PROTECT YOURSELF FROM LIGHTNING DO NOT USE THE TELEPHONE OR HAND HELD ELECTRICAL APPLIANCES...UNLESS IN AN EMERGENCY. MOTORISTS SHOULD BE ALERT FOR WATER ON ROADWAYS AND NEVER DRIVE ONTO A FLOODED ROAD.
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 Jul 9, 3:20 PM CDT, 2 minutes earlier.
Area forecast discussion, Jul 9, 3:20 PM CDT, 2 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 32 PM CDT WED JUL 9 1997 APPEARS ANOTHER MCS MAY DVLP LATER AGAIN TONIGHT. MANUAL PROGS SEEM TO HAVE ADJUSTED THE NUM MODELS FARTHER SOUTH AND ARE PLACING THE MAJOR AXIS OF PCPN OVR SERN KS AND NERN OK INTO NWRN AR. HOWEVER...GIVEN AFTN SFC PATTERN AND MODEL VVEL FIELD...FEEL PCPN MORE LIKELY TO START FARTHER NORTH AND THEN STAY MORE NORTH AND EAST OF THE MANUALLY PROGD AXIS. THIS SCENARIO FITS MORE CLOSELY WHAT HAPPENED LAST NIGHT. WILL MENTION HEAVY RAIN...BUT HAVE CHOSEN TO LEAVE FLASH FLOOD WATCH OUT SINCE MOST ZONES ARE RELATIVELY DRY...AND PRECIP WATER VALUES ARE RATHER MARGINAL. THE MCS MAY LAST AFTER DAWN AND WILL LEAVE SOME POPS IN FOR MAINLY THE MORNING. ANOTHER ROUND OF PCPN MAY DVLP AGAIN ON THU NIGHT..LASTING INTO EARLY FRIDAY MORNING. THIS SHOULD BE SIMILAR TO THE ONE LATER TONIGHT...SO WILL KEEP SIMILAR POPS. XPC CLDS TO DISSIPATE EACH DAY...WHICH SHOULD ALLOW PLENTY OF HEATING FOR WARM AFTN HIGHS. MOS TEMPS LOOK REASONABLE. /02 TUL BB 071/092 072/092 072 025353 FSM BB 072/092 072/092 073 023254 MLC BB 073/093 073/093 074 021233 BVO BB 070/092 070/092 070 025353 FYV BB 068/089 068/088 068 024354 IDB BB 069/094 069/094 070 021212 BYV BB 066/088 067/088 067 024354 .TUL... OK...NONE. AR...NONE.
In the hours before
Special weather statement, Jul 9, 1:00 PM CDT, 2 hours 22 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-101200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT WED JUL 9 1997 ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE IN EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND TONIGHT. AT EARLY AFTERNOON A VERY WEAK SURFACE TROUGH OF LOW PRESSURE EXTENDED FROM CENTRAL ARKANSAS TO CENTRAL OKLAHOMA...NEAR A LITTLE ROCK...MCALESTER...OKLAHOMA CITY LINE. LIFT ALONG THIS BOUNDARY IS WEAK...HOWEVER THE ATMOSPHERE WAS BECOMING VERY UNSTABLE AND THE CAP WAS BEING WEAKENED BY THE STRONG SURFACE HEATING. AN ISOLATED THUNDERSTORM COULD FORM ALONG THE TROUGH THIS AFTERNOON. IF A STORM DOES FORM THE DEGREE OF INSTABILITY SUGGESTS THAT PULSE SEVERE WEATHER IS LIKELY WITH LARGE HAIL AND DOWNBURST WINDS. WINDS ALOFT ARE WEAK SO STORM MOTIONS WILL BE SLOW TOWARD THE EAST OR SOUTHEAST. IN ADDITION...THUNDERSTORMS ARE EXPECTED TO FORM OVER NEBRASKA... EASTERN KANSAS AND WESTERN MISSOURI DURING THE AFTERNOON AND EVENING. THESE STORMS WILL MOVE SOUTHEAST AND MAY REACH NORTHEAST OKLAHOMA LATE TONIGHT AND FAR NORTHWEST ARKANSAS TOWARD MORNING. ISOLATED REPORTS OF HAIL AND STRONG WIND WILL BE POSSIBLE WITH THIS ACTIVITY...ALONG WITH HEAVY RAINS. EMERGENCY MANAGEMENT AGENCIES AND STORM SPOTTER GROUPS OVER NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS SHOULD BE PREPARED FOR POSSIBLE ACTIVATION LATER TODAY THROUGH EARLY TONIGHT.
Special weather statement, Jul 9, 1:10 PM CDT, 2 hours 12 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-101200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT WED JUL 9 1997 ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE IN EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND TONIGHT. AT EARLY AFTERNOON A VERY WEAK SURFACE TROUGH OF LOW PRESSURE EXTENDED FROM CENTRAL ARKANSAS TO CENTRAL OKLAHOMA...NEAR A LITTLE ROCK...MCALESTER...OKLAHOMA CITY LINE. LIFT ALONG THIS BOUNDARY IS WEAK...HOWEVER THE ATMOSPHERE WAS BECOMING VERY UNSTABLE AND THE CAP WAS BEING WEAKENED BY THE STRONG SURFACE HEATING. AN ISOLATED THUNDERSTORM COULD FORM ALONG THE TROUGH THIS AFTERNOON. IF A STORM DOES FORM THE DEGREE OF INSTABILITY SUGGESTS THAT PULSE SEVERE WEATHER IS LIKELY WITH LARGE HAIL AND DOWNBURST WINDS. WINDS ALOFT ARE WEAK SO STORM MOTIONS WILL BE SLOW TOWARD THE EAST OR SOUTHEAST. IN ADDITION...THUNDERSTORMS ARE EXPECTED TO FORM OVER NEBRASKA... EASTERN KANSAS AND WESTERN MISSOURI DURING THE AFTERNOON AND EVENING. THESE STORMS WILL MOVE SOUTHEAST AND MAY REACH NORTHEAST OKLAHOMA LATE TONIGHT AND FAR NORTHWEST ARKANSAS TOWARD MORNING. ISOLATED REPORTS OF HAIL AND STRONG WIND WILL BE POSSIBLE WITH THIS ACTIVITY...ALONG WITH HEAVY RAINS. EMERGENCY MANAGEMENT AGENCIES AND STORM SPOTTER GROUPS OVER NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS SHOULD BE PREPARED FOR POSSIBLE ACTIVATION LATER TODAY THROUGH EARLY TONIGHT.
Special weather statement, Jul 9, 2:34 PM CDT, 48 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-101200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK...UPDATE NATIONAL WEATHER SERVICE TULSA OK 235 PM CDT WED JUL 9 1997 ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE IN EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND TONIGHT. AT 2PM REMNANTS OF A THUNDERSTORM BOUNDARY EXTENDED ACROSS NORTHWEST ARKANSAS INTO EXTREME NORTHEAST OKLAHOMA FROM JUST SOUTH OF HARRISON TO ROGERS TO MIAMI. THE ATMOSPHERE HAS BECOME VERY UNSTABLE ALONG THE BOUNDARY AND THE CAP WAS BEING BROKEN BY STRONG HEATING AND LOCALLY ENHANCED LIFT IN THE HIGHER TERRAIN OF THE OZARKS. THUNDERSTORMS WERE FORMING IN NORTHWEST ARKANSAS ALONG THE BOUNDARY AND MAY DEVELOP INTO EXTREME NORTHEAST OKLAHOMA DURING THE AFTERNOON. THESE STORMS ARE EXPECTED TO SHIFT SOUTHEAST DEEPER INTO ARKANSAS THIS EVENING. ALSO...A VERY WEAK SURFACE TROUGH OF LOW PRESSURE EXTENDED FROM CENTRAL ARKANSAS TO CENTRAL OKLAHOMA...NEAR A LITTLE ROCK... MCALESTER...OKLAHOMA CITY LINE. LIFT ALONG THIS BOUNDARY IS WEAK...HOWEVER THE ATMOSPHERE WAS BECOMING VERY UNSTABLE AND THE CAP WAS BEING WEAKENED BY THE STRONG SURFACE HEATING. AN ISOLATED THUNDERSTORM COULD FORM ALONG THE TROUGH THIS AFTERNOON AND PERSIST INTO THE EVENING. ANY STORMS THAT FORM THIS AFTERNOON AND EVENING MAY BECOME BREIFLY SEVERE DUE TO THE DEGREE OF INSTABILITY WITH LARGE HAIL AND DOWNBURST WINDS THE MAIN THREAT. WINDS ALOFT ARE WEAK SO STORM MOTIONS WILL BE SLOW AND LOCALLY HEAVY RAINS WILL OCCUR. IN ADDITION...THUNDERSTORMS WHICH ARE EXPECTED TO FORM OVER NEBRASKA... EASTERN KANSAS AND WESTERN MISSOURI DURING THE AFTERNOON AND EVENING WILL MOVE SOUTHEAST AND MAY REACH NORTHEAST OKLAHOMA LATE TONIGHT AND FAR NORTHWEST ARKANSAS TOWARD MORNING. ISOLATED REPORTS OF HAIL AND STRONG WIND WILL BE POSSIBLE WITH THIS ACTIVITY...ALONG WITH HEAVY RAINS. EMERGENCY MANAGEMENT AGENCIES AND STORM SPOTTER GROUPS OVER NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS SHOULD BE PREPARED FOR POSSIBLE ACTIVATION LATER TODAY THROUGH EARLY TONIGHT.
Special weather statement, Jul 9, 2:35 PM CDT, 47 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-101200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK...UPDATE NATIONAL WEATHER SERVICE TULSA OK 235 PM CDT WED JUL 9 1997 ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE IN EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND TONIGHT. AT 2PM REMNANTS OF A THUNDERSTORM BOUNDARY EXTENDED ACROSS NORTHWEST ARKANSAS INTO EXTREME NORTHEAST OKLAHOMA FROM JUST SOUTH OF HARRISON TO ROGERS TO MIAMI. THE ATMOSPHERE HAS BECOME VERY UNSTABLE ALONG THE BOUNDARY AND THE CAP WAS BEING BROKEN BY STRONG HEATING AND LOCALLY ENHANCED LIFT IN THE HIGHER TERRAIN OF THE OZARKS. THUNDERSTORMS WERE FORMING IN NORTHWEST ARKANSAS ALONG THE BOUNDARY AND MAY DEVELOP INTO EXTREME NORTHEAST OKLAHOMA DURING THE AFTERNOON. THESE STORMS ARE EXPECTED TO SHIFT SOUTHEAST DEEPER INTO ARKANSAS THIS EVENING. ALSO...A VERY WEAK SURFACE TROUGH OF LOW PRESSURE EXTENDED FROM CENTRAL ARKANSAS TO CENTRAL OKLAHOMA...NEAR A LITTLE ROCK... MCALESTER...OKLAHOMA CITY LINE. LIFT ALONG THIS BOUNDARY IS WEAK...HOWEVER THE ATMOSPHERE WAS BECOMING VERY UNSTABLE AND THE CAP WAS BEING WEAKENED BY THE STRONG SURFACE HEATING. AN ISOLATED THUNDERSTORM COULD FORM ALONG THE TROUGH THIS AFTERNOON AND PERSIST INTO THE EVENING. ANY STORMS THAT FORM THIS AFTERNOON AND EVENING MAY BECOME BREIFLY SEVERE DUE TO THE DEGREE OF INSTABILITY WITH LARGE HAIL AND DOWNBURST WINDS THE MAIN THREAT. WINDS ALOFT ARE WEAK SO STORM MOTIONS WILL BE SLOW AND LOCALLY HEAVY RAINS WILL OCCUR. IN ADDITION...THUNDERSTORMS WHICH ARE EXPECTED TO FORM OVER NEBRASKA... EASTERN KANSAS AND WESTERN MISSOURI DURING THE AFTERNOON AND EVENING WILL MOVE SOUTHEAST AND MAY REACH NORTHEAST OKLAHOMA LATE TONIGHT AND FAR NORTHWEST ARKANSAS TOWARD MORNING. ISOLATED REPORTS OF HAIL AND STRONG WIND WILL BE POSSIBLE WITH THIS ACTIVITY...ALONG WITH HEAVY RAINS. EMERGENCY MANAGEMENT AGENCIES AND STORM SPOTTER GROUPS OVER NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS SHOULD BE PREPARED FOR POSSIBLE ACTIVATION LATER TODAY THROUGH EARLY TONIGHT.
Local storm report, Jul 9, 3:18 PM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
318 PM CDT WED JUL 09 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0305 PM 1 N ROGERS AR WIND DAMAGE
07/09/97 BENTON LARGE TREE LIMB DOWNED BY
THUNDERSTORMS WINDSThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 5:32 PM CDT | Severe Thunderstorm Warning | TSA | Benton | 43 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 1997Every severe thunderstorm warning in 1997
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.