Alert archive / Kansas / Tornado Watches in 1999

Tornado Watch 204

May 4, 199928 counties in Kansas; 24 counties in Missouri; 6 counties in Oklahoma

The Storm Prediction Center issued this tornado watch at May 4, 1999, 12:00 AM CDT for 28 counties in Kansas; 24 counties in Missouri; 6 counties in Oklahoma. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 4, 1999, 12:00 AM CDT (05:00 UTC)
Expired
May 4, 1999, 5:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 58 counties

Allen County, KS, Anderson County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Cowley County, KS, Crawford County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Johnson County, KS, Labette County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, Miami County, KS, Montgomery County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Sedgwick County, KS, Sumner County, KS, Wilson County, KS, Woodson County, KS, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Cass County, MO, Cedar County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Jasper County, MO, Johnson County, MO, Lawrence County, MO, McDonald County, MO, Moniteau County, MO, Morgan County, MO, Newton County, MO, Pettis County, MO, Polk County, MO, St. Clair County, MO, Stone County, MO, Vernon County, MO, Craig County, OK, Kay County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Washington County, OK

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 4, 12:12 AM CDTSevere Thunderstorm WarningEAXCass, Jackson48 min
May 4, 12:25 AM CDTTornado WarningTSAOsage, Pawnee35 min
May 4, 12:32 AM CDTSevere Thunderstorm WarningSGFCherokee, Crawford63 min
May 4, 12:56 AM CDTSevere Thunderstorm WarningICTSedgwick64 min
May 4, 1:01 AM CDTTornado WarningTSAOsage, Pawnee44 min
May 4, 1:12 AM CDTTornado WarningSGFCherokee63 min
May 4, 1:30 AM CDTSevere Thunderstorm WarningSGFNewton65 min
May 4, 1:42 AM CDTTornado WarningTSAOsage33 min
May 4, 1:52 AM CDTFlash Flood WarningSGFCherokee, Crawford4 hr
May 4, 1:54 AM CDTSevere Thunderstorm WarningSGFBarton66 min
May 4, 4:31 AM CDTFlash Flood WarningSGFBarton, Jasper4 hr
May 4, 4:31 AM CDTFlash Flood WarningSGFVernon4 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 5.0 hours before the alert went out and 174 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, Topeka, KS at 00:00Z on 1999-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 969 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, Topeka, KS at 00:00Z on 1999-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 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
969 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
1208 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
294 m²/s²
Significant tornado parameter
1.0
Supercell composite
13.3

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
May 3, 7:30 PM CDTTornado WatchSPCBarber, Butler, Chase, Clay, Cloud, Cowley and 28 more5 hr
May 4, 1:15 PM CDTTornado WatchSPCBarton, Butler, Chase, Chautauqua, Clay, Cloud and 30 more6 hr
May 4, 4:45 PM CDTTornado WatchSPCAudrain, Boone, Callaway, Camden, Carter, Christian and 33 more5 hr
May 4, 5:45 PM CDTTornado WatchSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Iron and 14 more4 hr
May 3, 7:15 PM CDTTornado WatchSPCAlfalfa, Blaine, Bryan, Caddo, Canadian, Carter and 33 more5 hr
May 3, 7:30 PM CDTTornado WatchSPCLove, Marshall5 hr
May 3, 10:45 PM CDTTornado WatchSPCAlfalfa, Blaine, Caddo, Canadian, Carter, Cleveland and 42 more6 hr
May 3, 11:30 PM CDTTornado WatchSPCAdair, Atoka, Bryan, Cherokee, Choctaw, Coal and 16 more6 hr
May 4, 5:00 AM CDTTornado WatchSPCAlfalfa, Blaine, Caddo, Canadian, Carter, Cleveland and 41 more6 hr
May 4, 11:00 AM CDTTornado WatchSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 27 more5 hr
May 4, 3:00 PM CDTTornado WatchSPCAdair, Choctaw, Haskell, Latimer, LeFlore, McCurtain and 2 more6 hr

Nearby

Tornado Watches in Kansas, 1999Tornado Watches in Missouri, 1999Tornado Watches in Oklahoma, 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.