Alert archive / Kansas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 97, NWS Topeka, KS

July 1, 1997Nemaha County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jul 1, 1997, 4:55 AM CDT for Nemaha County, Kansas. It was in force for 50 min. 7 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
Jul 1, 1997, 4:55 AM CDT (09:55 UTC)
Expired
Jul 1, 1997, 5:45 AM CDT
In force
50 min
Issued by
NWS Topeka, KS
Area
Whole counties

County Nemaha County, KS

What was reported inside it

TimeReportWhereRemark
Jul 1, 4:55 AM CDTHail 3Seneca, KS
Jul 1, 5:00 AM CDTHail 4Woodlawn, KS
Jul 1, 5:10 AM CDTThunderstorm Wind 50Woodlawn, KS
Jul 1, 5:15 AM CDTHail 4Woodlawn, KS
Jul 1, 5:15 AM CDTTornado F1Woodlawn, KS
Jul 1, 5:20 AM CDTHail 0.75Woodlawn, KS
Jul 1, 5:25 AM CDTHail 1.75Woodlawn, KS

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

Topeka, KS (KTOP), launched 00:00Z, 9.9 hours before the alert went out and 93 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 010954 RRA
SVRTOP
KSC131-011045-

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

* SEVERE THUNDERSTORM WARNING FOR
     NEMAHA COUNTY - NORTHEAST KANSAS

* UNTIL 545 AM CDT
 
* SOME LOCATIONS AFFECTED
     SENECA
     ONEIDA
     WOODLAWN
     KELLY

* AT 452 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM 25 MILES WEST
  OF HIAWATHA NEAR SENECA MOVING SOUTHEAST AT 25 MPH.
 
DAMAGIJNG 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, 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
Jul 1, 6:23 AM CDTSevere Thunderstorm WarningTOPJefferson57 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.