Alert archive / Kansas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 217, NWS Dodge City, KS

August 9, 2011Ellis County, Trego County, Kansas

NWS Dodge City, KS issued this severe thunderstorm warning at Aug 9, 2011, 9:30 PM CDT for Ellis County, Trego County, Kansas. It was in force for 45 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: Aug 9, 2011, 9:30 PM CDT (02:30 UTC)
Expired: Aug 9, 2011, 10:15 PM CDT
In force: 45 min
Issued by: NWS Dodge City, KS
Area: Storm-based polygon
Hail: 1.75 in
Wind: 70.0 mph

Counties Ellis County, KS, Trego County, KS

The radar

The Dodge City radar (KDDC), 149 km from the middle of the area, began a volume at 02:34 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
Aug 9, 10:02 PM CDT	HAIL 2	8 N Riga, KS
Aug 9, 10:20 PM CDT	TSTM WND DMG	1 Ene Ellis, KS	A PORCH ROOF WAS BLOWN FROM A RESIDENCE, AND A ROOF WAS PEELED OFF A TRAILER HOUSE.

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
Aug 9, 6:56 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 2.5 hours before the alert went out and 147 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: 548 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 2671 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

603 
WUUS53 KDDC 100230
SVRDDC
KSC051-195-100315-
/O.NEW.KDDC.SV.W.0217.110810T0230Z-110810T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DODGE CITY KS
930 PM CDT TUE AUG 9 2011

THE NATIONAL WEATHER SERVICE IN DODGE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ELLIS COUNTY IN CENTRAL KANSAS...
  NORTHEASTERN TREGO COUNTY IN WEST CENTRAL KANSAS...

* UNTIL 1015 PM CDT

* AT 924 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 10
  MILES EAST OF SAINT PETER...OR 14 MILES NORTHEAST OF VODA...AND
  MOVING SOUTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OGALLAH...
  RIGA...
  ELLIS...
  MAINLY RURAL AREAS OF NORTHEASTERN TREGO AND NORTHWESTERN ELLIS
  COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. IF CAUGHT OUTSIDE
SEEK A STURDY SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM HAS
PASSED.

&&

LAT...LON 3911 9929 3894 9951 3890 9974 3914 9991
      3914 9936
TIME...MOT...LOC 0229Z 316DEG 32KT 3919 9987
WIND...HAIL 70MPH 1.75IN

$$

FINCH

1 follow-up statement

108 
WWUS53 KDDC 100257
SVSDDC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DODGE CITY KS
957 PM CDT TUE AUG 9 2011

KSC051-195-100315-
/O.CON.KDDC.SV.W.0217.000000T0000Z-110810T0315Z/
TREGO KS-ELLIS KS-
957 PM CDT TUE AUG 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
ELLIS AND NORTHEASTERN TREGO COUNTIES UNTIL 1015 PM CDT...

AT 952 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES
NORTH OF OGALLAH...AND MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  ELLIS...
  MAINLY RURAL AREAS OF NORTHEASTERN TREGO AND NORTHWESTERN ELLIS
  COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. IF CAUGHT OUTSIDE
SEEK A STURDY SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM HAS
PASSED.

&&

LAT...LON 3909 9933 3894 9951 3894 9970 3912 9976
      3913 9941
TIME...MOT...LOC 0257Z 314DEG 28KT 3906 9965
WIND...HAIL 60MPH 1.75IN

$$

FINCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 7:29 PM CDT	Tornado Warning	DDC	Ellis	46 min
Aug 9, 8:01 PM CDT	Severe Thunderstorm Warning	DDC	Ellis	17 min
Aug 9, 8:13 PM CDT	Special Weather Statement	DDC	Ness	47 min
Aug 9, 8:21 PM CDT	Severe Thunderstorm Warning	DDC	Ellis, Ness, Rush, Trego	39 min
Aug 9, 8:27 PM CDT	Severe Thunderstorm Warning	DDC	Clark, Meade	37 min
Aug 9, 8:31 PM CDT	Areal Flood Advisory	DDC	Ellis	12 hr
Aug 9, 8:45 PM CDT	Special Weather Statement	DDC	Rush	45 min
Aug 9, 9:00 PM CDT	Severe Thunderstorm Warning	DDC	Ness, Rush	45 min
Aug 9, 9:16 PM CDT	Tornado Warning	DDC	Ness, Pawnee, Rush	44 min
Aug 9, 9:24 PM CDT	Severe Thunderstorm Warning	DDC	Clark, Comanche	51 min
Aug 9, 9:54 PM CDT	Severe Thunderstorm Warning	DDC	Edwards, Pawnee, Rush, Stafford	36 min
Aug 9, 10:17 PM CDT	Severe Thunderstorm Warning	DDC	Ellis	43 min
Aug 9, 10:20 PM CDT	Severe Thunderstorm Warning	DDC	Barber, Comanche, Kiowa, Pratt	29 min
Aug 9, 10:27 PM CDT	Severe Thunderstorm Warning	DDC	Pawnee, Stafford	48 min
Aug 9, 10:54 PM CDT	Severe Thunderstorm Warning	DDC	Pratt, Stafford	25 min
Aug 9, 10:58 PM CDT	Severe Thunderstorm Warning	DDC	Ellis, Rush	20 min
Aug 9, 11:12 PM CDT	Special Weather Statement	DDC	Ellis	48 min
Aug 9, 11:24 PM CDT	Severe Thunderstorm Warning	DDC	Ellis	30 min
Aug 10, 2:05 AM CDT	Special Weather Statement	DDC	Ellis	60 min
Aug 10, 2:25 AM CDT	Severe Thunderstorm Warning	DDC	Trego	47 min
Aug 10, 2:45 AM CDT	Severe Thunderstorm Warning	DDC	Ellis, Rush, Trego	28 min
Aug 10, 3:10 AM CDT	Severe Thunderstorm Warning	DDC	Ellis, Ness, Rush, Trego	50 min
Aug 10, 3:40 AM CDT	Severe Thunderstorm Warning	DDC	Ellis, Ness, Rush	50 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2011 Every severe thunderstorm warning in 2011

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.