Alert archive / Oklahoma / Tornado Warnings in 1994

Tornado Warning 28, NWS Tulsa, OK

May 6, 1994Nowata County, Washington County, Oklahoma

NWS Tulsa, OK issued this tornado warning at May 6, 1994, 6:28 PM CDT for Nowata County, Washington County, Oklahoma. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
May 6, 1994, 6:28 PM CDT (23:28 UTC)
Expired
May 6, 1994, 7:30 PM CDT
In force
62 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Nowata County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 67 km from the middle of the area, began a volume at 23:31 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 (KUMN), launched 12:00Z, 11.5 hours before the alert went out and 175 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 1994-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 1994-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 294 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
996 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
294 m²/s²
0-3 km storm-relative helicity
284 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.

000 
TTAA00 KTUL 062330
TORTUL
OKC105-147-070030-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
628 PM CDT FRI MAY 6 1994
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  730 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONSS...
 
IN NORTHEAST OKLAHOMA
 
   ...NOWATA COUNTY...NORTHERN WASHINGTON COUNTY
 
AT 628 PM...RADAR SHOWS A POSSIBLE TORNADO 5 MILES SOUTH OF WANN.
ANOTHER DEVELOPING TORNADO WAS INDICATED 2 MILES NORTH OF COPAN. BOTH OF
THESE POSSIBLE TORNADOES WERE MOVING SOUTH SOUTHEAST AT 10 MILES AN
HOUR. COPAN IS IN THE PATH OF ONE OF THESE TORNADOES.
 
 
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 POSSIBLE.
STAY AWAY FROM OUTSIDE WALLS AND AVOID WINDOWS.  ABANDON CARS AND
MOBILE HOMES FOR A REINFORCED BUILDING OR GET IN A GROUND DEPRESSION.
 
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 5:11 PM CDTSevere Thunderstorm WarningTSAWashington49 min
May 6, 5:25 PM CDTSevere Thunderstorm WarningTSAOsage65 min
May 6, 5:31 PM CDTSevere Thunderstorm WarningTSANowata59 min
May 6, 5:36 PM CDTTornado WarningTSANowata, Washington54 min
May 6, 6:25 PM CDTFlash Flood WarningTSANowata, Washington3 hr
May 6, 6:55 PM CDTTornado WarningTSAOsage65 min

Nearby

Tornado Warnings in Oklahoma, 1994Every tornado warning in 1994Tornadoes in 1994

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.