Alert archive / Kansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 45, NWS Topeka, KS

April 27, 2012Clay County, Dickinson County, Ottawa County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Apr 27, 2012, 4:09 PM CDT for Clay County, Dickinson County, Ottawa County, Kansas. It was in force for 42 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 27, 2012, 4:09 PM CDT (21:09 UTC)
Expired: Apr 27, 2012, 4:51 PM CDT
In force: 42 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Clay County, KS, Dickinson County, KS, Ottawa County, KS

The radar

The Topeka radar (KTWX), 101 km from the middle of the area, began a volume at 21:11 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 27, 2:11 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.2 hours before the alert went out and 152 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1420 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 272 m²/s²
0-3 km storm-relative helicity: 417 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.

116 
WUUS53 KTOP 272109
SVRTOP
KSC027-041-143-272200-
/O.NEW.KTOP.SV.W.0045.120427T2109Z-120427T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
409 PM CDT FRI APR 27 2012

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CLAY COUNTY IN NORTH CENTRAL KANSAS...
  NORTHWESTERN DICKINSON COUNTY IN CENTRAL KANSAS...
  EASTERN OTTAWA COUNTY IN NORTH CENTRAL KANSAS...

* UNTIL 500 PM CDT

* AT 407 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR NEW
  CAMBRIA...AND MOVING NORTH AT 35 MPH.

  HAZARD...HALF DOLLAR SIZE HAIL AND 60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

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

* LOCATIONS IMPACTED INCLUDE...
  SOLOMON...NILES...MANCHESTER...LONGFORD AND OAK HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3931 9749 3926 9715 3889 9737 3890 9738
      3892 9739 3893 9739 3893 9738 3896 9738
      3896 9761
TIME...MOT...LOC 2109Z 200DEG 29KT 3895 9753

HAIL...1.25IN
WIND...60 MPH

$$

BLAIR

2 follow-up statements

966 
WWUS53 KTOP 272129
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
429 PM CDT FRI APR 27 2012

KSC027-041-143-272200-
/O.CON.KTOP.SV.W.0045.000000T0000Z-120427T2200Z/
OTTAWA KS-CLAY KS-DICKINSON KS-
429 PM CDT FRI APR 27 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
DICKINSON...SOUTHWESTERN CLAY AND NORTHEASTERN OTTAWA COUNTIES UNTIL
500 PM CDT...

AT 425 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES WEST OF
MANCHESTER...AND MOVING NORTH AT 35 MPH.

HAZARD...PING PONG 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...
LONGFORD AND OAK HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3931 9749 3926 9715 3902 9731 3902 9738
      3906 9754
TIME...MOT...LOC 2130Z 200DEG 29KT 3912 9741

HAIL...1.50IN
WIND...60 MPH

$$

BLAIR

401 
WWUS53 KTOP 272151
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
451 PM CDT FRI APR 27 2012

KSC027-041-143-272200-
/O.CAN.KTOP.SV.W.0045.000000T0000Z-120427T2200Z/
OTTAWA KS-CLAY KS-DICKINSON KS-
451 PM CDT FRI APR 27 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DICKINSON...
SOUTHWESTERN CLAY AND NORTHEASTERN OTTAWA COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL SEVERE THUNDERSTORM WARNINGS REMAIN IN EFFECT FOR CLAY 
AND EASTERN DICKINSON COUNTIES.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT.

LAT...LON 3931 9749 3926 9715 3902 9731 3902 9738
      3906 9754
TIME...MOT...LOC 2150Z 200DEG 29KT 3927 9734

$$

BLAIR

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 4:55 AM CDT	Special Weather Statement	TOP	Douglas	35 min
Apr 27, 10:39 AM CDT	Special Weather Statement	TOP	Shawnee	36 min
Apr 27, 3:44 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic	46 min
Apr 27, 4:06 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Ottawa	39 min
Apr 27, 4:23 PM CDT	Tornado Warning	TOP	Cloud	37 min
Apr 27, 4:47 PM CDT	Severe Thunderstorm Warning	TOP	Clay	21 min
Apr 27, 4:49 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Geary	56 min
Apr 27, 4:53 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic, Washington	17 min
Apr 27, 5:16 PM CDT	Tornado Warning	TOP	Clay, Cloud, Washington	29 min
Apr 27, 5:29 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Riley	18 min
Apr 27, 5:40 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Morris, Wabaunsee	50 min
Apr 27, 5:56 PM CDT	Special Weather Statement	TOP	Riley	34 min
Apr 27, 6:27 PM CDT	Severe Thunderstorm Warning	TOP	Lyon, Osage, Shawnee, Wabaunsee	33 min
Apr 27, 6:47 PM CDT	Severe Thunderstorm Warning	TOP	Jefferson, Shawnee	43 min
Apr 27, 6:51 PM CDT	Tornado Warning	TOP	Osage, Shawnee	24 min

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.