Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 54, NWS Tulsa, OK

April 17, 1995Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 17, 1995, 10:32 PM CDT for Osage County, Oklahoma. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Apr 17, 1995, 10:32 PM CDT (03:32 UTC)
Expired
Apr 17, 1995, 11:15 PM CDT
In force
43 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Osage County, OK

The radar

The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 03:33 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, 3.5 hours before the alert went out and 181 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 1995-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1006 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 1995-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 square meters per square second.1939587897117Sfc1 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
1006 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
605 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.3

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 Apr 17, 9:04 PM CDT, 1 hour 28 minutes earlier.

Area forecast discussion, Apr 17, 9:04 PM CDT, 1 hour 28 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
900 PM CDT MON APR 17 1995

00Z RAOBS CONT TO INDCT A VERY UNSTABLE AMS OVR EOK/NWAR THIS EVE
JUST WAITING FOR THE LFTG MECH TO ARRIVE.  ACTVTY STARTING TO BCM
MORE ORGANIZED WEST OF EOK AND XPCT A SQLN TO DVLP AND SWEEP THRU
AREA OVRNGT.  TIMING HAS BEEN A BIT SLOER THAN XPCTD...SO WL NOT
TRY TO BE AS FINE ON TSTMS ENDING BY A CERTAIN TIME.  STILL XCPT
SQLN T:O BE OUT OF FA BFR DABRK THO.  AM A BIT WORRIED ABT PSBL FL
FLDG AS FF GUIDNC RATHER LO.  HWVR..BLV SQLN WL MOV FAST ENUF TO
AVOID A PROLONGED PD OF HVY RAINFALL.

..11..

.TUL...NONE.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 7:05 PM CDTSevere Thunderstorm WarningTSAPawnee40 min
Apr 17, 9:30 PM CDTSevere Thunderstorm WarningTSAOkfuskee45 min
Apr 17, 9:39 PM CDTSevere Thunderstorm WarningTSAOkmulgee51 min
Apr 17, 9:47 PM CDTSevere Thunderstorm WarningTSACreek, Osage, Tulsa43 min
Apr 17, 9:51 PM CDTTornado WarningTSAOkfuskee, Okmulgee39 min
Apr 17, 10:06 PM CDTSevere Thunderstorm WarningTSAOkfuskee39 min
Apr 17, 10:09 PM CDTTornado WarningTSAMcIntosh36 min
Apr 17, 10:15 PM CDTSevere Thunderstorm WarningTSAWashington30 min
Apr 17, 10:24 PM CDTTornado WarningTSAMuskogee36 min
Apr 17, 10:32 PM CDTSevere Thunderstorm WarningTSANowata, Rogers, Tulsa43 min
Apr 17, 10:32 PM CDTSevere Thunderstorm WarningTSAOkmulgee43 min
Apr 17, 10:48 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee57 min
Apr 17, 10:51 PM CDTFlash Flood WarningTSACreek, Osage, Pawnee3 hr
Apr 17, 10:56 PM CDTTornado WarningTSAMuskogee, Wagoner49 min
Apr 17, 11:04 PM CDTFlash Flood WarningTSAMuskogee, Okmulgee3 hr
Apr 17, 11:14 PM CDTSevere Thunderstorm WarningTSANowata, Rogers46 min
Apr 17, 11:20 PM CDTTornado WarningTSACherokee40 min
Apr 17, 11:25 PM CDTSevere Thunderstorm WarningTSACraig, Delaware, Mayes50 min
Apr 17, 11:25 PM CDTSevere Thunderstorm WarningTSAOttawa50 min
Apr 17, 11:30 PM CDTSevere Thunderstorm WarningTSALeFlore, Sequoyah45 min
Apr 17, 11:30 PM CDTSevere Thunderstorm WarningTSAAdair45 min
Apr 17, 11:53 PM CDTTornado WarningTSACherokee, Delaware37 min
Apr 18, 12:00 AM CDTTornado WarningTSAAdair30 min
Apr 17, 11:35 PM CDTSevere Thunderstorm WarningTSABenton, Washington40 min
Apr 17, 11:35 PM CDTSevere Thunderstorm WarningTSACrawford40 min
Apr 17, 11:47 PM CDTSevere Thunderstorm WarningTSASebastian43 min
Apr 18, 12:13 AM CDTTornado WarningTSAWashington32 min
Apr 18, 12:21 AM CDTSevere Thunderstorm WarningTSABenton, Carroll, Madison54 min
Apr 18, 12:21 AM CDTSevere Thunderstorm WarningTSACrawford54 min
Apr 18, 12:26 AM CDTTornado WarningTSABenton34 min
Apr 18, 12:30 AM CDTSevere Thunderstorm WarningTSASebastian30 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1995Every severe thunderstorm warning in 1995

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.