Alert archive / Oklahoma / Tornado Watches in 1999

Tornado Watch 119

April 5, 19999 counties in Kansas; 26 counties in Oklahoma

The Storm Prediction Center issued this tornado watch at Apr 5, 1999, 3:45 AM CDT for 9 counties in Kansas; 26 counties in Oklahoma. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 5, 1999, 3:45 AM CDT (08:45 UTC)
Expired
Apr 5, 1999, 9:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 35 counties

Barber County, KS, Chautauqua County, KS, Cowley County, KS, Elk County, KS, Harper County, KS, Kingman County, KS, Sedgwick County, KS, Sumner County, KS, Wilson County, KS, Alfalfa County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, McClain County, OK, Noble County, OK, Oklahoma County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pottawatomie County, OK, Washita County, OK, Woods County, OK

Warnings issued inside it

24 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 5, 3:49 AM CDTSevere Thunderstorm WarningOUNDewey, Major41 min
Apr 5, 3:51 AM CDTSevere Thunderstorm WarningOUNAlfalfa, Woods29 min
Apr 5, 3:54 AM CDTSevere Thunderstorm WarningICTHarper51 min
Apr 5, 4:00 AM CDTTornado WarningOUNBlaine, Dewey, Major30 min
Apr 5, 4:02 AM CDTTornado WarningOUNAlfalfa, Woods28 min
Apr 5, 4:04 AM CDTSevere Thunderstorm WarningDDCBarber31 min
Apr 5, 4:24 AM CDTTornado WarningOUNAlfalfa, Major36 min
Apr 5, 4:36 AM CDTTornado WarningICTHarper39 min
Apr 5, 4:44 AM CDTSevere Thunderstorm WarningICTKingman46 min
Apr 5, 4:56 AM CDTTornado WarningOUNAlfalfa19 min
Apr 5, 5:03 AM CDTSevere Thunderstorm WarningOUNAlfalfa, Major27 min
Apr 5, 5:11 AM CDTTornado WarningOUNAlfalfa, Major34 min
Apr 5, 5:25 AM CDTTornado WarningOUNGrant20 min
Apr 5, 5:28 AM CDTSevere Thunderstorm WarningICTHarper47 min
Apr 5, 5:31 AM CDTTornado WarningOUNAlfalfa, Garfield, Grant29 min
Apr 5, 5:42 AM CDTSevere Thunderstorm WarningOUNGarvin, Grady, McClain, Stephens48 min
Apr 5, 5:53 AM CDTTornado WarningOUNGrant32 min
Apr 5, 6:17 AM CDTSevere Thunderstorm WarningOUNCleveland28 min
Apr 5, 6:28 AM CDTSevere Thunderstorm WarningOUNGarvin, McClain32 min
Apr 5, 6:35 AM CDTSevere Thunderstorm WarningICTSumner55 min
Apr 5, 6:42 AM CDTSevere Thunderstorm WarningOUNPottawatomie48 min
Apr 5, 7:15 AM CDTSevere Thunderstorm WarningICTSedgwick60 min
Apr 5, 7:45 AM CDTTornado WarningICTSedgwick30 min
Apr 5, 8:21 AM CDTSevere Thunderstorm WarningICTCowley39 min

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 8.8 hours before the alert went out and 108 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 1999-04-05Temperature 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, Norman, OK at 00:00Z on 1999-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 132 square meters per square second.1939587897Sfc1 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
2677 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
132 m²/s²
0-3 km storm-relative helicity
346 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 5, 3:45 AM CDTTornado WatchSPCBarber, Chautauqua, Cowley, Elk, Harper, Kingman and 3 more5 hr
Apr 5, 8:15 AM CDTTornado WatchSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 28 more6 hr
Apr 5, 10:00 AM CDTTornado WatchSPCLeFlore, McCurtain6 hr

Nearby

Tornado Watches in Oklahoma, 1999Tornado Watches in Kansas, 1999Every tornado watch in 1999

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.