Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 596, NWS Norman, OK

October 2, 1994Logan County, Payne County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Oct 2, 1994, 11:00 PM CDT for Logan County, Payne County, Oklahoma. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Oct 2, 1994, 11:00 PM CDT (04:00 UTC)
Expired
Oct 2, 1994, 11:45 PM CDT
In force
45 min
Issued by
NWS Norman, OK
Area
Whole counties

Counties Logan County, OK, Payne County, OK

The radar

The Norman radar (KTLX), 74 km from the middle of the area, began a volume at 04:03 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

Norman, OK (KOUN), launched 00:00Z, 4.0 hours before the alert went out and 88 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, Norman, OK at 00:00Z on 1994-10-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 512 joules per kilogram.LCLLFCEL10008507005003002001001 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, Norman, OK at 00:00Z on 1994-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
512 J/kg
Mixed-layer CIN
-159 J/kg
Mixed-layer LCL
1789 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
172 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 2, 4:19 PM CDT, 6 hours 41 minutes earlier.

Area forecast discussion, Oct 2, 4:19 PM CDT, 6 hours 41 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OKLAHOMA CITY OKLAHOMA
330 PM CDT SUN OCT 2 1994

1 -2 DAY DISC...CURRENT CONVCTN ACRS NW/ N CNTL OK FIRING ALONG S/W
LOCATED FM NRN KS THRU OK. MDLS SHOW HIER RH'S ASSOC WITH S/W TO
CONT TO MOV CNTL AND ERN OK OVRNGHT...SO HAVE POPS IN FOR CNTL AND SE OK
TNTE. NEXT 2 DAYS IN IN SWLY DIFL FLO PCPN PSBL ACRS ENTR FA...BUT BEST
POPS IN ERN PTNS IN BEST LO LVL...BEST CHCS IN AFTN HRS WITH MAX HTNG.
UPR RDG OVR SW CANADA CUTS OFF WRN UPR LO OFF FM WRLYS...AND IT CONT TO
DIG SSWD ACRS WRN US IN 1 TO 2 DAY PD. RESULT FOR FA IS TO KP SLY FLO
AT SFC AND SWLY ALOFT OVR AREA.

XTND DISC...IN EXTENDED PD...LO BGNS TO LIFT OUT TO E. BY LATE
TUE...ERLY WED SWLY FLO INCREASES. STG  CDFNT POSED TO MOVE OVR AREA
LATE THU - ERLY FRI AND BRING AN END TO WM PATRN. CONT SWLY FLO MAKES
IT HARD TO GET A HANDLE ON TIMING OF PCPN EVENTS. THUS WILL KP 20-30 PCT
POPS IN MOST ZNES WED THRU FRI.

FCSTID=07
HBR   59  90  58  85 / 20  20  20  30
OKC   60  86  58  81 / 30  30  20  30
SPS   59  90  58  85 / 20  20  20  30
GAG   55  88  54  81 / 10  20  20  20
PNC   59  87  57  80 / 30  30  20  30
DUA   62  88  60  85 / 20  30  20  30

.OKC...NONE.
*.TX...NONE.

PURPURA

In the hours before

Local storm report, Oct 2, 9:40 PM CDT, 1 hour 20 minutes before
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Local storm report, Oct 2, 10:15 PM CDT, 45 minutes before
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Local storm report, Oct 2, 10:21 PM CDT, 39 minutes before
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Local storm report, Oct 2, 10:54 PM CDT, 6 minutes before
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Local storm report, Oct 2, 10:55 PM CDT, 5 minutes before
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Local storm report, Oct 2, 11:00 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 2, 7:14 PM CDTSevere Thunderstorm WarningOUNGarfield46 min
Oct 2, 8:00 PM CDTSevere Thunderstorm WarningOUNMajor45 min
Oct 2, 8:21 PM CDTSevere Thunderstorm WarningOUNGarfield39 min
Oct 2, 9:00 PM CDTTornado WarningOUNGarfield, Kingfisher30 min
Oct 2, 9:28 PM CDTSevere Thunderstorm WarningOUNGarfield, Kingfisher47 min
Oct 2, 9:32 PM CDTFlash Flood WarningOUNGarfield, Kingfisher3 hr
Oct 2, 10:15 PM CDTSevere Thunderstorm WarningOUNKingfisher, Logan45 min
Oct 3, 5:44 PM CDTSevere Thunderstorm WarningOUNCotton, Tillman46 min
Oct 3, 6:05 PM CDTSevere Thunderstorm WarningOUNComanche55 min
Oct 3, 4:41 PM CDTSevere Thunderstorm WarningOUNArcher49 min
Oct 3, 4:56 PM CDTSevere Thunderstorm WarningOUNWichita49 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.