Alert archive / Kansas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 102, NWS Topeka, KS

July 8, 1997Brown County, Nemaha County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jul 8, 1997, 1:48 AM CDT for Brown County, Nemaha County, Kansas. It was in force for 47 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 8, 1997, 1:48 AM CDT (06:48 UTC)
Expired
Jul 8, 1997, 2:35 AM CDT
In force
47 min
Issued by
NWS Topeka, KS
Area
Whole counties

Counties Brown County, KS, Nemaha County, KS

The radar

The Topeka radar (KTWX), 98 km from the middle of the area, began a volume at 06:47 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

Topeka, KS (KTOP), launched 00:00Z, 6.8 hours before the alert went out and 90 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 1997-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1163 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 1997-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939Sfc1 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
1163 J/kg
Mixed-layer CIN
-127 J/kg
Mixed-layer LCL
1613 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTOP 080648 RRA
SVRTOP
KSC013-131-080735-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
148 AM CDT TUE JUL 8 1997

* SEVERE THUNDERSTORM WARNING FOR
     BROWN COUNTY - NORTHEAST KANSAS
     EASTERN NEMAHA COUNTY - NORTHEAST KANSAS

* UNTIL 235 AM CDT
 
* SOME LOCATIONS AFFECTED
     WOODLAWN
     FAIRVIEW
     HIAWATHA

* AT 142 AM CDT LOCAL LAW ENFORCEMENT REPORTED A SEVERE THUNDERSTORM
  20 MILES WEST OF HIAWATHA TO NEAR HIAWATHA MOVING MOVING EAST
  AROUND 20 MPH.

* REPORTS
 
LARGE HAIL IS LIKELY.  GO INSIDE A STURDY BUILDING AND STAY
AWAY FROM WINDOWS!

&
KAYS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 1:56 AM CDTSevere Thunderstorm WarningTOPCloud, Ottawa59 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; radar from the NEXRAD Level II archive.