Alert archive / Kansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 72, NWS Topeka, KS

May 30, 2012Pottawatomie County, Riley County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at May 30, 2012, 5:56 PM CDT for Pottawatomie County, Riley County, Kansas. It was in force for 34 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 30, 2012, 5:56 PM CDT (22:56 UTC)
Expired: May 30, 2012, 6:30 PM CDT
In force: 34 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Pottawatomie County, KS, Riley County, KS

The radar

The Topeka radar (KTWX), 62 km from the middle of the area, began a volume at 22:57 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.

What was reported inside it

Time	Report	Where	Remark
May 30, 6:02 PM CDT	HAIL 1.5	4 Nw Randolph, KS	TIME ESTIMATED BY RADAR
May 30, 6:05 PM CDT	TSTM WND GST 60	4 Nnw Randolph, KS
May 30, 6:15 PM CDT	TSTM WND GST 60	1 Wsw Olsburg, KS
May 30, 6:21 PM CDT	TSTM WND GST 60	2 Wnw Olsburg, KS
May 30, 6:33 PM CDT	TSTM WND GST 60	4 Wsw Westmoreland, KS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 30, 3:57 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 10.9 hours before the alert went out and 99 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: 1581 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 97 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.

214 
WUUS53 KTOP 302256
SVRTOP
KSC149-161-302330-
/O.NEW.KTOP.SV.W.0072.120530T2256Z-120530T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
556 PM CDT WED MAY 30 2012

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN POTTAWATOMIE COUNTY IN NORTHEAST KANSAS...
  NORTHERN RILEY COUNTY IN NORTHEAST KANSAS...

* UNTIL 630 PM CDT

* AT 552 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES NORTH OF
  RANDOLPH...AND MOVING SOUTHEAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...MINOR TREE DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER
           BROKEN.

* LOCATIONS IMPACTED INCLUDE...
  BLAINE...RANDOLPH...OLSBURG AND TUTTLE CREEK LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3948 9634 3923 9657 3946 9693 3957 9683
      3957 9669
TIME...MOT...LOC 2257Z 302DEG 28KT 3951 9672

HAIL...<.75IN
WIND...60 MPH

$$

BARJENBRUCH

1 follow-up statement

480 
WWUS53 KTOP 302312
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
612 PM CDT WED MAY 30 2012

KSC149-161-302330-
/O.CON.KTOP.SV.W.0072.000000T0000Z-120530T2330Z/
RILEY KS-POTTAWATOMIE KS-
612 PM CDT WED MAY 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
POTTAWATOMIE AND NORTH CENTRAL RILEY COUNTIES UNTIL 630 PM CDT...

AT 606 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 5 MILES NORTHEAST
OF RANDOLPH...AND MOVING SOUTHEAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.

SOURCE...TRAINED WEATHER SPOTTERS. A COOPERATIVE OBSERVER REPORTED 
60 MPH WINDS 4 MILES NORTH OF RANDOLPH.

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

LOCATIONS IMPACTED INCLUDE...
OLSBURG AND TUTTLE CREEK LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

&&

LAT...LON 3925 9655 3944 9680 3953 9677 3957 9669
      3948 9634
TIME...MOT...LOC 2311Z 302DEG 28KT 3946 9665

HAIL...0.88IN
WIND...60 MPH

$$

BARJENBRUCH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 10:46 PM CDT	Special Weather Statement	TOP	Dickinson	29 min
May 29, 10:58 PM CDT	Special Weather Statement	TOP	Coffey	32 min
May 29, 11:04 PM CDT	Special Weather Statement	TOP	Morris	41 min
May 29, 11:26 PM CDT	Special Weather Statement	TOP	Morris	34 min
May 29, 11:44 PM CDT	Special Weather Statement	TOP	Morris	31 min
May 29, 11:55 PM CDT	Special Weather Statement	TOP	Franklin	20 min
May 30, 12:02 AM CDT	Severe Thunderstorm Warning	TOP	Morris, Wabaunsee	28 min
May 30, 12:09 AM CDT	Special Weather Statement	TOP	Douglas	36 min
May 30, 12:16 AM CDT	Severe Thunderstorm Warning	TOP	Douglas, Osage	29 min
May 30, 12:33 AM CDT	Special Weather Statement	TOP	Osage	42 min
May 30, 12:42 AM CDT	Severe Thunderstorm Warning	TOP	Douglas	22 min
May 30, 12:52 AM CDT	Severe Thunderstorm Warning	TOP	Osage, Shawnee	23 min
May 30, 4:30 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic	45 min
May 30, 4:53 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Ottawa	22 min
May 30, 5:09 PM CDT	Special Weather Statement	TOP	Republic	36 min
May 30, 5:12 PM CDT	Severe Thunderstorm Warning	TOP	Clay, Cloud, Ottawa	48 min
May 30, 5:39 PM CDT	Special Weather Statement	TOP	Cloud	36 min
May 30, 6:23 PM CDT	Special Weather Statement	TOP	Clay	22 min
May 30, 6:27 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie	48 min
May 30, 6:43 PM CDT	Severe Thunderstorm Warning	TOP	Wabaunsee	32 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.