Alert archive / Oklahoma / Tornado Warnings in 2000

Tornado Warning 39, NWS Norman, OK

October 22, 2000Canadian County, Oklahoma

NWS Norman, OK issued this tornado warning at Oct 22, 2000, 5:40 PM CDT for Canadian County, Oklahoma. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 22, 2000, 5:40 PM CDT (22:40 UTC)
Expired
Oct 22, 2000, 6:15 PM CDT
In force
35 min
Issued by
NWS Norman, OK
Area
Whole counties

County Canadian County, OK

The radar

The Norman radar (KTLX), 68 km from the middle of the area, began a volume at 22:43 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 12:00Z, 10.7 hours before the alert went out and 64 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 12:00Z on 2000-10-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 87 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 12:00Z on 2000-10-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 255 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
87 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
493 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
255 m²/s²
0-3 km storm-relative helicity
267 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.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 22, 7:10 AM CDTSevere Thunderstorm WarningOUNTillman35 min
Oct 22, 4:54 PM CDTSevere Thunderstorm WarningOUNComanche51 min
Oct 22, 5:36 PM CDTSevere Thunderstorm WarningOUNCaddo, Grady39 min
Oct 22, 6:05 PM CDTTornado WarningOUNPontotoc40 min
Oct 22, 6:10 PM CDTTornado WarningOUNCanadian, Kingfisher35 min
Oct 22, 6:48 PM CDTSevere Thunderstorm WarningOUNGrady57 min
Oct 22, 6:50 PM CDTSevere Thunderstorm WarningOUNTillman40 min

Nearby

Tornado Warnings in Oklahoma, 2000Every tornado warning in 2000Tornadoes in 2000

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.