Alert archive / Kansas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 11, NWS Topeka, KS

April 2, 1997Ottawa County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Apr 2, 1997, 5:50 AM CST for Ottawa County, Kansas. It was in force for 45 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
Apr 2, 1997, 5:50 AM CST (11:50 UTC)
Expired
Apr 2, 1997, 6:35 AM CST
In force
45 min
Issued by
NWS Topeka, KS
Area
Whole counties

County Ottawa County, KS

The radar

The Topeka radar (KTWX), 123 km from the middle of the area, began a volume at 11:53 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, 11.8 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 1997-04-02Temperature 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, Topeka, KS at 00:00Z on 1997-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1911 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
192 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 021149 RRA
SVRTOP
KSC143-021235-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
550 AM CST WED APR 2 1997

* SEVERE THUNDERSTORM WARNING FOR
  EASTERN OTTAWA COUNTY - NORTH CENTRAL KANSAS

* UNTIL 635 AM CST
 
* SOME LOCATIONS AFFECTED
  LAMAR

* AT 547 AM CST RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES
  NORTHEAST OF MINNEAPOLIS OR 30 MILES SOUTH OF  CONCORDIA 
  MOVING NORTHEAST AT 25 MPH.

* THE STORM WILL BE NEAR
  LAMAR AROUND 550 AM CST
  10 MILES EAST-NORTHEAST OF LAMAR AROUND 620 CST
 
THIS IS A DANGEROUS STORM!  STAY INDOORS AWAY FROM WINDOWS!

...THIS WARNING REPLACES THE PREVIOUS SEVERE THUNDERSTORM
   WARNING ISSUED FOR WESTERN OTTAWA COUNTY UNTIL 545 AM CST...

SW

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 5:14 AM CSTSevere Thunderstorm WarningTOPOttawa31 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.