Alert archive / Arkansas / Tornado Warnings in 1998
Tornado Warning 77, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Oct 5, 1998, 4:07 AM CDT for Benton County, Arkansas. It was in force for 23 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
- Oct 5, 1998, 4:07 AM CDT (09:07 UTC)
- Expired
- Oct 5, 1998, 4:30 AM CDT
- In force
- 23 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Benton County, AR
The radar
The Tulsa radar (KINX), 104 km from the middle of the area, began a volume at 09:09 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 4, 11:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 9.1 hours before the alert went out and 81 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
- 1811 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 918 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 236 m²/s²
- 0-3 km storm-relative helicity
- 352 m²/s²
- Significant tornado parameter
- 2.7
- Supercell composite
- 19.4
The text
As transmitted, in the capitals the NWS used until 2016.
578
WFUS54 KTSA 050909 RRA
TORTUL
ARC007-050930-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
407 AM CDT MON OCT 5 1998
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* TORNADO WARNING FOR
WESTERN BENTON COUNTY IN NORTHWEST ARKANSAS
* UNTIL 430 AM CDT
* AT 407 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG
ROTATION NEAR GENTRY...MOVING EAST AT 40 MILES PER HOUR. THIS
DANGEROUS STORM COULD PRODUCE A TORNADO AT ANY TIME.
* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
GENTRY...BELLA VISTA...HIWASSE...CENTERTON...DECATUR
...GRAVETTE...MAYSVILLE AND BENTONVILLE
THIS IS A DANGEROUS STORM. IF YOU ARE IN OR NEAR ITS PATH YOU SHOULD
PREPARE FOR LARGE HAIL...DAMAGING WINDS AND POSSIBLY A TORNADO. IF NO
UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN
INTERIOR ROOM AWAY FROM WINDOWS.
IF YOU ARE IN OR NEAR THE PATH OF THIS TORNADO...TAKE COVER NOW IF
NO UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS
LAT...LON 3641 9458 3625 9456 3633 9420 3650 9424What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Oct 5, 3:55 AM CDT, 12 minutes earlier.
Area forecast discussion, Oct 5, 3:55 AM CDT, 12 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1010 AM CDT MON OCT 5 1998 HEAVY RAIN HAS SHIFTED SOUTHEAST AND IS STILL MAKING PROGRESS EASTWARD. HOWEVER BIG PIECE OF ENERGY STILL TO ROUND BASE OF UPPER TROF AND MOVE ACROSS SOUTHERN PLAINS THIS AFTERNOON AND TONIGHT. SURFACE COLD FRONT WAS EXTENDED FROM NEAR MIAMI TO OKEMAH BUT 850 MB TROF IS STILL NORTHWEST OF THE FORECAST AREA. SCATTERED SHOWERS WILL CONTINUE TO DEVELOP AND MOVE NORTHEAST OVER NORTHEAST OKLAHOMA WITH MAIN AREAS OF THUNDERSTORMS AND HEAVY RAINS SOUTHEAST OF CURRENT POSITION OF SURFACE COLD FRONT. DUE TO CURRENT RUNOFF AND FLASH FLOOD WARNINGS IN EFFECT WON'T CANCEL ANY OF THE FFA AT THIS TIME...BUT THREAT WILL HAVE SHIFTED INTO SOUTHEAST OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON...SO PLAN ON SHAVING OFF NORTHWEST PART OF WATCH EARLY THIS AFTERNOON. WILL UPDATE ZONES TO LOWER MAXES BEHIND COLD FRONT WHERE CLOUDS SCATTERED SHOWERS WILL KEEP TEMPERATURES FROM RISING MUCH. TEMPERATURES SHOULD BE STEADY OR FALL WITH PRECIP OVER THE REST OF THE AREA...EXCEPT NEAR RED RIVER WHERE SUNSHINE COULD LET TEMPS WARM INTO MID 80S. THREAT FOR SEVERE SHOULD BE LIMITED TO THAT AREA...BUT WILL HAVE TO MONITOR LEADING EDGE OF STORMS FOR POSSIBLE INTENSIFICATION. UPDATED ZONES SHOULD BE OUT BY 11AM. .TUL... OK...FLASH FLOOD WATCH FOR TODAY FOR ZONES OKZ049...OKZ053>077. AR...FLASH FLOOD WATCH FOR TODAY FOR ZONES $ARZ001>002...ARZ010>011... ARZ019>020...ARZ029.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 2:12 AM CDT | Severe Thunderstorm Warning | TSA | Benton | 48 min |
| Oct 5, 2:56 AM CDT | Severe Thunderstorm Warning | TSA | Benton | 49 min |
| Oct 5, 3:56 AM CDT | Severe Thunderstorm Warning | TSA | Benton | 49 min |
| Oct 5, 4:35 AM CDT | Flash Flood Warning | TSA | Benton | 3 hr |
| Oct 5, 7:55 AM CDT | Flash Flood Warning | TSA | Benton | 3 hr |
| Oct 5, 10:53 AM CDT | Flash Flood Warning | TSA | Benton, Washington | 3 hr |
| Oct 5, 1:49 PM CDT | Flash Flood Warning | TSA | Benton, Washington | 3 hr |
| Oct 5, 2:13 PM CDT | Severe Thunderstorm Warning | TSA | Crawford | 32 min |
| Oct 5, 2:24 PM CDT | Severe Thunderstorm Warning | TSA | Madison, Washington | 66 min |
| Oct 5, 3:15 PM CDT | Flash Flood Warning | TSA | Carroll, Madison | 3 hr |
| Oct 5, 3:15 PM CDT | Flash Flood Warning | TSA | Franklin, Sebastian | 3 hr |
| Oct 5, 3:24 PM CDT | Severe Thunderstorm Warning | TSA | Carroll, Madison | 51 min |
Nearby
Tornado Warnings in Arkansas, 1998Every tornado warning in 1998Tornadoes in 1998
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.