Alert archive / Arkansas / Tornado Warnings in 1998

Tornado Warning 7, NWS Tulsa, OK

April 6, 1998Crawford County, Franklin County, Arkansas

NWS Tulsa, OK issued this tornado warning at Apr 6, 1998, 11:59 PM CDT for Crawford County, Franklin County, Arkansas. It was in force for 46 min. 3 reports 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: Apr 6, 1998, 11:59 PM CDT (04:59 UTC)
Expired: Apr 7, 1998, 12:45 AM CDT
In force: 46 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Crawford County, AR, Franklin County, AR

What was reported inside it

Time	Report	Where	Remark
Apr 7, 12:05 AM CDT	Thunderstorm Wind 52	Alma, AR	Sheriffs vehicle blown off road
Apr 7, 12:20 AM CDT	Thunderstorm Wind	Charleston, AR	Tree downed by tstm winds
Apr 7, 12:26 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 6, 10:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.0 hours before the alert went out and 152 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2213 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 221 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

792 
WFUS54 KTSA 070501 RRA
TORTUL
ARC033-047-070545-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
1159 PM CDT MON APR 6 1998

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1245 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTHWESTERN ARKANSAS

   ...EASTERN CRAWFORD COUNTY
   ...FRANKLIN COUNTY

AT 1158 PM...DOPPLER RADAR INDICATED A POSSIBLE TORNADO 3 MILES
SOUTH OF MOUNTAINBURG MOVING EAST AT 30 MPH.

THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN
THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE. OTHERWISE... GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR. AVOID WINDOWS AND DOORS. ABANDON CARS AND MOBILE HOMES FOR
A STURDIER BUILDING OR GET INTO A DITCH OR CULVERT.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 6, 11:25 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Sebastian, Washington	50 min
Apr 7, 12:14 AM CDT	Severe Thunderstorm Warning	TSA	Madison	61 min

Nearby

Tornado Warnings in Arkansas, 1998 Every tornado warning in 1998 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.