Alert archive / Kansas / Tornado Warnings in 2010

Tornado Warning 21, NWS Topeka, KS

June 20, 2010Cloud County, Republic County, Kansas

NWS Topeka, KS issued this tornado warning at Jun 20, 2010, 8:10 PM CDT for Cloud County, Republic County, Kansas. It was in force for 35 min. 2 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
Jun 20, 2010, 8:10 PM CDT (01:10 UTC)
Expired
Jun 20, 2010, 8:45 PM CDT
In force
35 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon

Counties Cloud County, KS, Republic County, KS

The radar

The Grand Island radar (KUEX), 114 km from the middle of the area, began a volume at 01:12 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

TimeReportWhereRemark
Jun 20, 8:14 PM CDTTSTM WND GST 805 Ese Concordia, KS
Jun 20, 8:16 PM CDTTSTM WND GST 802 N Concordia, KSESTIMATING GUSTS TO 80MPH FROM THE NORTHWEST.

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.

IssuedProductOfficeLasted
Jun 20, 3:07 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 1.2 hours before the alert went out and 173 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 2010-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4831 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2010-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.19395878Sfc1 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
4831 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
870 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
2.2
Supercell composite
11.7

Open this sounding in Storm Lab

The text

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

948 
WFUS53 KTOP 210110
TORTOP
KSC029-157-210145-
/O.NEW.KTOP.TO.W.0021.100621T0110Z-100621T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
810 PM CDT SUN JUN 20 2010

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN CLOUD COUNTY IN NORTH CENTRAL KANSAS...
  SOUTHEASTERN REPUBLIC COUNTY IN NORTH CENTRAL KANSAS...

* UNTIL 845 PM CDT

* AT 807 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS SEVERE
  STORM WAS LOCATED 13 MILES WEST OF AGENDA...OR 4 MILES NORTH OF
  CONCORDIA...MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CLYDE...
  AGENDA...
  CUBA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR SAFETY...GO TO A STORM SHELTER OR BASEMENT NOW! TORNADOES
MAY HAVE WINDS GREATER THAN 100 MPH. AVOID OVERPASSES AND WINDOWS...
AND USE BLANKETS OR PILLOWS TO PROTECT YOURSELF FROM FLYING DEBRIS.

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

&&

LAT...LON 3946 9736 3946 9761 3976 9773 3989 9737
TIME...MOT...LOC 0111Z 255DEG 31KT 3964 9762

$$
2 follow-up statements
653 
WWUS53 KTOP 210130
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
830 PM CDT SUN JUN 20 2010

KSC029-157-210145-
/O.CON.KTOP.TO.W.0021.000000T0000Z-100621T0145Z/
REPUBLIC-CLOUD-
830 PM CDT SUN JUN 20 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR
NORTHEASTERN CLOUD AND SOUTHEASTERN REPUBLIC COUNTIES...

AT 826 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
STORM WAS LOCATED NEAR AGENDA...OR 14 MILES SOUTHEAST OF
BELLEVILLE...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
AGENDA AND CLYDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS
INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

&&

LAT...LON 3946 9736 3946 9751 3981 9760 3989 9737
TIME...MOT...LOC 0130Z 261DEG 31KT 3969 9740

$$
788 
WWUS53 KTOP 210140
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
840 PM CDT SUN JUN 20 2010

KSC029-157-210149-
/O.EXP.KTOP.TO.W.0021.000000T0000Z-100621T0145Z/
REPUBLIC-CLOUD-
840 PM CDT SUN JUN 20 2010

...THE TORNADO WARNING FOR NORTHEASTERN CLOUD AND SOUTHEASTERN
REPUBLIC COUNTIES WILL EXPIRE AT 845 PM CDT...

AT 839 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE
SEVERE THUNDERSTORMS WITH THE POSSIBLE TORNADO HAD WEAKENED AND NO 
LONGER APPEARED CAPABLE OF PRODUCING TORNADOES...THUS THE TORNADO 
WARNING HAS BEEN ALLOWED TO EXPIRE. A SEVERE THUNDERSTORM WARNING 
REMAINS IN EFFECT UNTIL 930 PM CDT.

A TORNADO WATCH REMAINS IN EFFECT. STAY ALERT TO THE WEATHER.

LAT...LON 3946 9736 3946 9751 3981 9760 3989 9737
TIME...MOT...LOC 0139Z 261DEG 31KT 3970 9730

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 7:35 PM CDTSevere Thunderstorm WarningTOPCloud, Ottawa, Republic55 min
Jun 20, 7:46 PM CDTTornado WarningTOPRepublic29 min
Jun 20, 8:25 PM CDTSevere Thunderstorm WarningTOPClay, Cloud, Geary, Marshall, Ottawa, Republic and 2 more65 min
Jun 20, 8:35 PM CDTAreal Flood AdvisoryTOPCloud, Republic115 min
Jun 20, 8:48 PM CDTTornado WarningTOPWashington27 min
Jun 20, 9:24 PM CDTAreal Flood AdvisoryTOPClay, Washington51 min
Jun 20, 9:24 PM CDTSevere Thunderstorm WarningTOPClay, Dickinson, Geary, Marshall, Nemaha, Pottawatomie and 3 more51 min
Jun 20, 9:46 PM CDTSevere Thunderstorm WarningTOPMarshall, Nemaha44 min
Jun 20, 10:14 PM CDTSevere Thunderstorm WarningTOPJackson, Marshall, Nemaha, Pottawatomie, Shawnee46 min
Jun 20, 10:18 PM CDTAreal Flood AdvisoryTOPMarshall, Nemaha117 min
Jun 21, 7:02 AM CDTAreal Flood AdvisoryTOPClay, Cloud, Republic, Washington88 min
Jun 21, 7:32 AM CDTRiver Flood WarningTOPMarshall55 hr
Jun 21, 7:43 AM CDTAreal Flood AdvisoryTOPClay, Marshall, Riley, Washington92 min
Jun 21, 8:39 AM CDTAreal Flood AdvisoryTOPMarshall, Nemaha, Pottawatomie51 min
Jun 21, 10:01 AM CDTSevere Thunderstorm WarningTOPJefferson29 min
Jun 21, 10:32 AM CDTRiver Flood WarningTOPRiley13 hr
Jun 21, 10:32 AM CDTRiver Flood WarningTOPClay37 hr
Jun 21, 3:25 PM CDTFlash Flood WatchTOPBrown, Clay, Cloud, Jackson, Jefferson, Marshall and 5 more13 hr

Nearby

Tornado Warnings in Kansas, 2010Every tornado warning in 2010Tornadoes in 2010

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.