Alert archive / Oklahoma / Tornado Warnings in 1996

Tornado Warning 13, NWS Tulsa, OK

April 21, 1996Nowata County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Apr 21, 1996, 7:22 PM CDT for Nowata County, Oklahoma. It was in force for 53 min. 2 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 21, 1996, 7:22 PM CDT (00:22 UTC)
Expired
Apr 21, 1996, 8:15 PM CDT
In force
53 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Nowata County, OK

The radar

The Tulsa radar (KINX), 70 km from the middle of the area, began a volume at 00:22 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.

What was reported inside it

TimeReportWhereRemark
Apr 21, 7:28 PM CDTTornado F0Nowata, OK
Apr 21, 7:56 PM CDTHail 0.88Nowata, OK

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 nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 0.4 hours before the alert went out and 162 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 00:00Z on 1996-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1598 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, Springfield, MO at 00:00Z on 1996-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.19395878Sfc1 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
1598 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
594 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 7:05 PM CDTTornado WarningTSACraig, Nowata40 min
Apr 21, 7:09 PM CDTTornado WarningTSAWashington36 min
Apr 21, 7:32 PM CDTTornado WarningTSACraig, Ottawa43 min
Apr 21, 7:43 PM CDTTornado WarningTSANowata32 min
Apr 21, 7:54 PM CDTSevere Thunderstorm WarningTSACraig21 min
Apr 21, 8:08 PM CDTTornado WarningTSAOttawa37 min
Apr 21, 8:20 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Pittsburg55 min
Apr 21, 8:57 PM CDTTornado WarningTSAMcIntosh, Pittsburg48 min
Apr 21, 9:30 PM CDTTornado WarningTSAHaskell45 min
Apr 21, 9:34 PM CDTSevere Thunderstorm WarningTSAOkfuskee41 min
Apr 21, 9:39 PM CDTTornado WarningTSAPittsburg21 min
Apr 21, 10:05 PM CDTTornado WarningTSAHaskell40 min
Apr 21, 10:15 PM CDTSevere Thunderstorm WarningTSAOkmulgee45 min
Apr 21, 10:22 PM CDTTornado WarningTSALeFlore, Sequoyah53 min
Apr 21, 10:25 PM CDTSevere Thunderstorm WarningTSAMcIntosh50 min
Apr 21, 10:37 PM CDTFlash Flood WarningTSACherokee3 hr
Apr 21, 11:17 PM CDTSevere Thunderstorm WarningTSAOkfuskee43 min
Apr 21, 11:28 PM CDTSevere Thunderstorm WarningTSARogers, Tulsa, Wagoner47 min
Apr 21, 11:40 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Okmulgee50 min
Apr 21, 11:44 PM CDTSevere Thunderstorm WarningTSAOkfuskee46 min
Apr 22, 12:25 AM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Okmulgee50 min
Apr 22, 12:36 AM CDTTornado WarningTSAMcIntosh39 min
Apr 22, 12:41 AM CDTSevere Thunderstorm WarningTSACherokee, Wagoner49 min
Apr 22, 12:46 AM CDTSevere Thunderstorm WarningTSAPittsburg44 min
Apr 22, 12:55 AM CDTTornado WarningTSAMuskogee35 min
Apr 22, 12:59 AM CDTSevere Thunderstorm WarningTSASequoyah46 min
Apr 22, 1:19 AM CDTTornado WarningTSASequoyah41 min
Apr 22, 1:24 AM CDTSevere Thunderstorm WarningTSAAdair, Cherokee51 min
Apr 22, 1:28 AM CDTSevere Thunderstorm WarningTSAPittsburg32 min
Apr 22, 1:36 AM CDTSevere Thunderstorm WarningTSAHaskell, Latimer54 min
Apr 22, 1:45 AM CDTTornado WarningTSALatimer, Pittsburg45 min
Apr 22, 1:50 AM CDTTornado WarningTSAAdair40 min
Apr 22, 2:18 AM CDTFlash Flood WarningTSALatimer, Pittsburg3 hr
Apr 22, 2:22 AM CDTSevere Thunderstorm WarningTSAHaskell, LeFlore53 min
Apr 22, 2:34 AM CDTFlash Flood WarningTSAHaskell3 hr
Apr 22, 7:16 AM CDTFlash Flood WarningTSALatimer, Pittsburg119 min
Apr 22, 7:16 AM CDTFlash Flood WarningTSALeFlore119 min
Apr 22, 8:37 AM CDTFlash Flood WarningTSAHaskell2 hr

Nearby

Tornado Warnings in Oklahoma, 1996Every tornado warning in 1996Tornadoes in 1996

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; radar from the NEXRAD Level II archive.