Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 217, NWS Tulsa, OK

June 7, 1994Delaware County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 7, 1994, 5:32 PM CDT for Delaware County, Oklahoma. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Jun 7, 1994, 5:32 PM CDT (22:32 UTC)
Expired
Jun 7, 1994, 6:15 PM CDT
In force
43 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Delaware County, OK

The radar

The Tulsa radar (KINX), 73 km from the middle of the area, began a volume at 22:32 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, 10.5 hours before the alert went out and 105 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 1994-06-07Temperature 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 1994-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 square meters per square second.1939Sfc1 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
1541 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Jun 7, 3:24 PM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, Jun 7, 3:24 PM CDT, 2 hours 8 minutes before
AREA FORECAST DISCUSSION FOR EASTERN OKLAHOMA
NATIONAL WEATHER SERVICE TULSA OK
323 PM CDT TUE JUN 7 1994

WL HV LIKELY CATGY POPS EXTRM NRN ZNS TONITE AND TAPER TO 20 PCT OVR
SE OK. KS/MO MCS WL REDVLP AND INTENSIFY OVR CNTRL/SRN KS THIS AFTN AND
EVE AND SPREAD SE ACRS NE OK TONITE. SOME STORMS WILL LIKELY BE SVR OVR
NE OK THIS EVE/TONITE AND WL MENTION SVR IN THE ZNS. EACH PERIOD OF FCST
AFTR TONITE DEPENDENT ON WHAT HAPPENS THE PREV PERIOD WITH OUTFLOW AND
LINGERING MORN TRW. WL GENLY KEEP CHC POPS OVR NE OK WEDS THRU THURSDAY.
AND SLGT CHCS OVR THE SRN ZNS. COLD FRONT SHUD APCH NRN ZNS THURS MORN
AND SHUD PROVIDE THE FOCUS FOR TRW. AFTN TEMPS SHUD STILL BE WARM/HOT
AND REACH THE 90S WITH THE HELP OF INSOLATION AND VERY WARM LO LVL
TEMPS THRU THURS. WL GO SLIGHTLY COOLER IN THE NORTH ON THURS AS FRONT
AND MORE CLDS LIKELY TO BE IN AREA.
                                                     /9

TUL 69/93/70/89 5233    MLC 73/93/72/91 3223   MIO 67/88/67/85 7444
BVO 67/93/68/88 6343    IDB 72/94/72/94 2222

.TUL...NONE.

In the hours before

Special weather statement, Jun 7, 1:30 PM CDT, 4 hours 2 minutes before
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Special weather statement, Jun 7, 1:40 PM CDT, 3 hours 52 minutes before
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Local storm report, Jun 7, 5:15 PM CDT, 17 minutes before
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Local storm report, Jun 7, 5:19 PM CDT, 13 minutes before
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Local storm report, Jun 7, 5:23 PM CDT, 9 minutes before
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Local storm report, Jun 7, 5:23 PM CDT, 9 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 4:45 PM CDTSevere Thunderstorm WarningTSAOttawa45 min
Jun 7, 6:57 PM CDTSevere Thunderstorm WarningTSAAdair33 min
Jun 7, 5:33 PM CDTSevere Thunderstorm WarningTSABenton57 min
Jun 7, 6:18 PM CDTSevere Thunderstorm WarningTSABenton, Madison, Washington57 min
Jun 7, 6:47 PM CDTTornado WarningTSAMadison43 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1994Every severe thunderstorm warning 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.