Alert archive / Kansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 36, NWS Topeka, KS

April 14, 20124 counties in Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Apr 14, 2012, 11:36 PM CDT for 4 counties in Kansas. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 14, 2012, 11:36 PM CDT (04:36 UTC)
Expired: Apr 14, 2012, 11:56 PM CDT
In force: 20 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Clay County, KS, Dickinson County, KS, Geary County, KS, Riley County, KS

The radar

The Topeka radar (KTWX), 56 km from the middle of the area, began a volume at 04:38 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 14, 5:24 PM CDT	Tornado Watch PDS	SPC	9 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 4.6 hours before the alert went out and 102 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: 1788 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 665 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 401 m²/s²
0-3 km storm-relative helicity: 443 m²/s²
Significant tornado parameter: 5.2
Supercell composite: 17.0

Open this sounding in Storm Lab

The text

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

542 
WUUS53 KTOP 150436
SVRTOP
KSC027-041-061-161-150515-
/O.NEW.KTOP.SV.W.0036.120415T0436Z-120415T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
1136 PM CDT SAT APR 14 2012

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CLAY COUNTY IN NORTH CENTRAL KANSAS...
  NORTHERN DICKINSON COUNTY IN CENTRAL KANSAS...
  NORTHWESTERN GEARY COUNTY IN EAST CENTRAL KANSAS...
  RILEY COUNTY IN NORTHEAST KANSAS...

* UNTIL 1215 AM CDT

* AT 1134 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  MOONLIGHT...AND MOVING NORTHEAST AT 55 MPH.

  HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
           DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.

* LOCATIONS IMPACTED INCLUDE...
  MANHATTAN...WAKEFIELD...MILFORD LAKE...MILFORD...RILEY...KEATS...
  LEONARDVILLE...RANDOLPH AND MANHATTAN AIRPORT.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 276 AND 291.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3950 9679 3943 9671 3942 9673 3942 9671
      3940 9672 3933 9667 3932 9664 3931 9666
      3925 9659 3925 9657 3923 9658 3924 9656
      3922 9655 3890 9710 3900 9737 3908 9737
TIME...MOT...LOC 0436Z 230DEG 47KT 3907 9704

HAIL...1.75IN
WIND...60 MPH

$$

BARJENBRUCH

1 follow-up statement

262 
WWUS53 KTOP 150456
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1156 PM CDT SAT APR 14 2012

KSC027-041-061-161-150506-
/O.CAN.KTOP.SV.W.0036.000000T0000Z-120415T0515Z/
RILEY KS-CLAY KS-DICKINSON KS-GEARY KS-
1156 PM CDT SAT APR 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GEARY...NORTHERN
DICKINSON...SOUTHEASTERN CLAY AND RILEY COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A TORNADO 
WATCH REMAINS IN EFFECT.

LAT...LON 3950 9679 3943 9671 3942 9673 3942 9671
      3940 9672 3933 9667 3932 9664 3931 9666
      3925 9659 3925 9657 3923 9658 3924 9656
      3922 9655 3890 9710 3900 9737 3908 9737
TIME...MOT...LOC 0456Z 230DEG 47KT 3924 9678

$$

BARJENBRUCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 7:24 PM CDT	Tornado Warning Tornado observed	TOP	Clay, Dickinson	51 min
Apr 14, 8:01 PM CDT	Tornado Warning Tornado observed	TOP	Clay, Riley	29 min
Apr 14, 8:43 PM CDT	Tornado Warning Tornado observed	TOP	Dickinson, Morris	47 min
Apr 14, 9:22 PM CDT	Tornado Warning	TOP	Geary, Morris, Wabaunsee	38 min
Apr 14, 11:08 PM CDT	Tornado Warning	TOP	Dickinson	37 min
Apr 14, 11:31 PM CDT	Severe Thunderstorm Warning	TOP	Ottawa	29 min
Apr 14, 11:48 PM CDT	Tornado Warning Tornado observed	TOP	Lyon	42 min
Apr 15, 12:00 AM CDT	Severe Thunderstorm Warning	TOP	Clay, Dickinson, Ottawa	45 min
Apr 15, 12:41 AM CDT	Severe Thunderstorm Warning	TOP	Clay, Dickinson, Geary, Riley	49 min
Apr 15, 12:47 AM CDT	Tornado Warning	TOP	Clay, Dickinson, Geary, Riley	28 min
Apr 15, 12:52 AM CDT	Severe Thunderstorm Warning	TOP	Brown, Marshall, Nemaha, Pottawatomie	38 min
Apr 15, 1:15 AM CDT	Tornado Warning Tornado observed	TOP	Pottawatomie, Riley	15 min
Apr 15, 1:30 AM CDT	Tornado Warning	TOP	Marshall, Nemaha, Pottawatomie	30 min
Apr 15, 1:38 AM CDT	Severe Thunderstorm Warning	TOP	Clay, Riley, Washington	37 min
Apr 15, 1:51 AM CDT	Severe Thunderstorm Warning	TOP	Jackson, Marshall, Nemaha, Pottawatomie	34 min
Apr 15, 2:13 AM CDT	Severe Thunderstorm Warning	TOP	Marshall, Pottawatomie, Riley	24 min
Apr 15, 3:15 AM CDT	Special Weather Statement	TOP	Wabaunsee	15 min
Apr 15, 3:24 AM CDT	Wind Advisory	TOP	Anderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more	17 hr
Apr 15, 3:30 AM CDT	Special Weather Statement	TOP	Jackson, Shawnee	30 min
Apr 15, 3:59 AM CDT	Special Weather Statement	TOP	Jefferson	31 min
Apr 15, 4:13 AM CDT	Areal Flood Warning	TOP	Nemaha	3 hr
Apr 15, 4:22 AM CDT	River Flood Warning	TOP	Riley	15 hr
Apr 15, 5:06 AM CDT	Special Weather Statement	TOP	Anderson, Coffey, Douglas, Franklin, Osage	54 min
Apr 15, 7:40 AM CDT	Areal Flood Advisory	TOP	Clay, Dickinson, Ottawa	2 hr
Apr 15, 7:53 AM CDT	River Flood Warning	TOP	Clay	7 hr
Apr 15, 8:32 AM CDT	River Flood Warning	TOP	Marshall	7 hr
Apr 15, 9:29 AM CDT	River Flood Warning	TOP	Cloud	4 hr
Apr 15, 9:45 AM CDT	Areal Flood Warning	TOP	Clay	3 hr

Nearby

Severe Thunderstorm Warnings in Kansas, 2012 Every severe thunderstorm warning in 2012

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.