Alert archive / Kansas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 100, NWS Topeka, KS

July 1, 1997Jefferson County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jul 1, 1997, 6:23 AM CDT for Jefferson County, Kansas. It was in force for 57 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
Jul 1, 1997, 6:23 AM CDT (11:23 UTC)
Expired
Jul 1, 1997, 7:20 AM CDT
In force
57 min
Issued by
NWS Topeka, KS
Area
Whole counties

County Jefferson County, KS

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 1, 5:45 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 11.4 hours before the alert went out and 34 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 1997-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2402 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 1997-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
2402 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
1238 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTOP 011122 RRA
SVRTOP
KSC087-011220-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
623 AM CDT TUE JUL 1 1997

* SEVERE THUNDERSTORM WARNING FOR
     EASTERN JEFFERSON COUNTY - NORTHEAST KANSAS

* UNTIL 720 AM CDT
 
* SOME LOCATIONS AFFECTED
     NORTONVILLE
     BOYLE
     WINCHESTER
     OSKALOOSA
     MCLOUTH

* AT 622 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM 30 MILES NORTH
  OF LAWRENCE NEAR NORTONVILLE MOVING SOUTHEAST AT 30 MPH.
 
DAMAGING WINDS AND LARGE HAIL ARE LIKELY.  GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS!

PB

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 4:55 AM CDTSevere Thunderstorm WarningTOPNemaha50 min
Jul 1, 5:15 AM CDTTornado WarningTOPBrown, Nemaha30 min
Jul 1, 5:37 AM CDTSevere Thunderstorm WarningTOPJackson33 min
Jul 1, 5:45 AM CDTSevere Thunderstorm WarningTOPBrown30 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1997Every severe thunderstorm warning in 1997

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.