Alert archive / Kansas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 16, NWS Topeka, KS

April 5, 2001Marshall County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Apr 5, 2001, 11:14 AM CDT for Marshall County, Kansas. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Apr 5, 2001, 11:14 AM CDT (16:14 UTC)
Expired: Apr 5, 2001, 11:45 AM CDT
In force: 31 min
Issued by: NWS Topeka, KS
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Marshall County, KS

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 4.2 hours before the alert went out and 123 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1343 J/kg
Mixed-layer CIN: -180 J/kg
Mixed-layer LCL: 623 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 274 m²/s²
0-3 km storm-relative helicity: 269 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KTOP 051614
SVRTOP
KSC117-051645-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
1114 AM CDT THU APR 5 2001

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MARSHALL COUNTY IN NORTHEAST KANSAS

* UNTIL 1145 AM CDT

* AT 1113 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR MARYSVILLE...MOVING NORTHEAST AT 40 MPH.

* SOME LOCATIONS AFFECTED...
  BEATTIE
  AXTELL
  SUMMERFIELD

DIME SIZE HAIL WAS REPORTED WITH THIS STORM AT 1110 AM NEAR 
MARYSVILLE.
  
LARGE HAIL...VERY HEAVY RAIN AND DAMAGING WINDS ARE LIKELY WITH THIS
STORM. TAKE COVER INSIDE A BUILDING.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.

LAT...LON 3995 9672 3972 9658 3974 9625 3999 9625
          3999 9644

PB

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Topeka, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 5, 3:15 AM CDT, 7 hours 59 minutes earlier.

Area forecast discussion, Apr 5, 3:15 AM CDT, 7 hours 59 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TOPEKA KS
315 AM CDT THU APR 5 2001

THUNDER CHANCES AND TEMPERATURES REMAIN FORECAST CONCERNS.

WARM FRONT OVER SOUTHERN KANSAS IS PROGGED TO BRIDGE NORTH THIS
MORNING...REACHING NORTHERN KANSAS/NEBRASKA BORDER.  ETA HAD BEST
HANDLE ON POSITIONING OF BOUNDARY AND LOW LEVEL WIND FIELDS THIS
MORNING.  THUS FOLLOWED ITS FRONTAL POSITIONING THROUGH THE
FORECAST.  LOW PRESSURE OVER SOUTHEAST COLORADO WILL BECOME MAIN
SYSTEM WITH WARM FRONT/INVERTED TROF EXTENDING INTO NORTHCENTRAL
KANSAS THIS MORNING.  CONVECTION MOVING INTO SOUTHWEST KANSAS
EXPECTED TO PROPAGATE NORTHEAST INTO CENTRAL/NORTHCENTRAL KANSAS
WHERE LAPS DATA SUGGESTS THETA-E RIDGING IS BEGINNING ALONG THIS
BOUNDARY.

WARM FRONT TO HANG UP OVER NORTHERN/NORTHCENTRAL ZONES TODAY...AND
WILL FOCUS HIGHEST POPS ALONG AND NORTH OF IT.  AIR TO THE SOUTH AND
EAST WILL BECOME VERY UNSTABLE WITH SURFACE DEW POINTS IN THE 60S.
ETA MAY BE LITTLE OVERDONE WITH THE DEW POINTS AND YIELDING
2500-3000 CAPES...BUT STILL THINK 2000 CAPES NOT OUT OF THE
QUESTION.  LACK OF SURFACE BOUNDARY IS INHIBITING FACTOR...HOWEVER
IF SOUTHWEST CONVECTION CONTINUES NORTHEAST...MAY HAVE SOME
BOUNDARIES IN THE AREA TO FOCUS ON.  THUS WILL KEEP CHANCE POPS
GOING IN SOUTHEAST TWO-THIRDS OF THE CWA.

WARM FRONT TO REMAIN NEARLY STATIONARY OVERNIGHT IN NORTHERN ZONES.
ETA SHOWS ANOTHER WEAK WAVE RIDING OVER TOP AND LAYS DOWN SOME
DECENT RAIN.  AVN LESS ROBUST.  WILL CARRY HIGH CHANCE POPS OVER
NORTHERN ZONES AND TAPER TO THE SOUTH.

MAIN SHOW STILL LOOKS TO BE FRIDAY AS UPPER TROUGH EJECTS INTO THE
PLAINS INCREASING UPPER DIFFLUENCE/LIFT ACROSS THE PLAINS.  DRY LINE
WILL RACE THROUGH THE CWA DURING THE AFTERNOON/EVENING PROVIDING
FOCUS FOR CONVECTION.  EXTREMELY STRONG WIND FIELDS SUGGEST GOOD
SEVERE POTENTIAL AND WILL MENTION IN ZONES.

TEMPERATURES...WITH EXPECTATION OF WARM FRONT INTO NORTHERN KANSAS
TODAY...70S TO NEAR 80 SHOULD BE ATTAINED SOUTH OF THE BOUNDARY.
WILL KEEP THINGS COOLER IN NORTHCENTRAL ZONES WHERE BOUNDARY SHOULD
YIELD.  SAME STORY TONIGHT WITH 60S TO THE SOUTH OF BOUNDARY AND 50S
NORTH.  WILL BLANKET MOST AREAS WITH 70S ON FRIDAY AS STRONG
SOUTHERLY FLOW SETS UP AHEAD OF DRY LINE.

CONVECTION WILL BE WELL EAST OF THE AREA BY SATURDAY MORNING SO WILL
KEEP BREEZY AND DRY FORECAST GOING.  NEXT CHANCE FOR PRECIP COMES
TUESDAY/WEDNESDAY AS NEXT UPPER SYSTEM ROAMS INTO THE PLAINS.

.TOP...NONE

62

In the hours before

Local storm report, Apr 5, 10:38 AM CDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1038 AM CDT THU APR 05 2001

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1020 AM    4 SE LINN                 KS    1 INCH HAIL
04/05/01   WASHINGTON

Local storm report, Apr 5, 10:40 AM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1040 AM CDT THU APR 05 2001

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1032 AM    KIMEO                     KS    1.5 INCH HAIL
04/05/01   WASHINGTON

1040 AM    WATERVILLE                KS    .88 INCH HAIL
04/05/01   MARSHALL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 10:07 AM CDT	Severe Thunderstorm Warning	TOP	Washington	23 min
Apr 5, 10:31 AM CDT	Severe Thunderstorm Warning	TOP	Marshall, Washington	44 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2001 Every severe thunderstorm warning in 2001

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.