Alert archive / Kansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 85, NWS Kansas City, MO

July 8, 2012Johnson County, Leavenworth County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Jul 8, 2012, 4:13 PM CDT for Johnson County, Leavenworth County, Kansas. It was in force for 32 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: Jul 8, 2012, 4:13 PM CDT (21:13 UTC)
Expired: Jul 8, 2012, 4:45 PM CDT
In force: 32 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Johnson County, KS, Leavenworth County, KS

The radar

The Pleasant Hill radar (KEAX), 75 km from the middle of the area, began a volume at 21:13 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 nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.2 hours before the alert went out and 47 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: 1229 J/kg
Mixed-layer CIN: -221 J/kg
Mixed-layer LCL: 1386 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: -21 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.

895 
WUUS53 KEAX 082113
SVREAX
KSC091-103-082145-
/O.NEW.KEAX.SV.W.0085.120708T2113Z-120708T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
413 PM CDT SUN JUL 8 2012

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL JOHNSON COUNTY IN EAST CENTRAL KANSAS...
  SOUTHWESTERN LEAVENWORTH COUNTY IN NORTHEAST KANSAS...

* UNTIL 445 PM CDT

* AT 409 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES NORTHWEST
  OF EUDORA...AND MOVING SOUTH AT 5 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...
  DE SOTO AND CLEARVIEW CITY.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN
PLEASANT HILL.

&&

LAT...LON 3911 9519 3916 9517 3910 9518 3912 9514
      3913 9505 3906 9497 3900 9495 3890 9495
      3884 9505 3887 9507 3898 9506 3898 9508
      3895 9508 3898 9516 3896 9517 3896 9519
TIME...MOT...LOC 2113Z 002DEG 6KT 3900 9516

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

$$

DUX

3 follow-up statements

174 
WWUS53 KEAX 082127
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
427 PM CDT SUN JUL 8 2012

KSC091-103-082145-
/O.CON.KEAX.SV.W.0085.000000T0000Z-120708T2145Z/
LEAVENWORTH KS-JOHNSON KS-
427 PM CDT SUN JUL 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
JOHNSON COUNTY IN EAST CENTRAL KANSAS...AND SOUTHWESTERN LEAVENWORTH
COUNTY IN NORTHEAST KANSAS UNTIL 445 PM CDT...

AT 426 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR EUDORA...AND
MOVING SOUTH AT 5 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...
CLEARVIEW CITY.

THIS WILL IMPACT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN
PLEASANT HILL.

&&

LAT...LON 3896 9519 3898 9519 3905 9518 3906 9512
      3904 9505 3903 9501 3900 9495 3890 9495
      3884 9505 3887 9507 3898 9506 3898 9508
      3895 9508 3898 9516 3896 9517
TIME...MOT...LOC 2127Z 002DEG 6KT 3898 9516

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

$$

DUX

228 
WWUS53 KEAX 082135
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
435 PM CDT SUN JUL 8 2012

KSC103-082146-
/O.CAN.KEAX.SV.W.0085.000000T0000Z-120708T2145Z/
LEAVENWORTH KS-
435 PM CDT SUN JUL 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN LEAVENWORTH
COUNTY IS CANCELLED...

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

LAT...LON 3886 9506 3888 9506 3898 9506 3898 9503
      3898 9502 3899 9502 3900 9502 3890 9495
      3884 9505
TIME...MOT...LOC 2136Z 320DEG 5KT 3889 9509

$$

KSC091-082145-
/O.CON.KEAX.SV.W.0085.000000T0000Z-120708T2145Z/
JOHNSON KS-
435 PM CDT SUN JUL 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
JOHNSON COUNTY IN EAST CENTRAL KANSAS UNTIL 445 PM CDT...

AT 434 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR EUDORA...AND
MOVING SOUTHEAST AT 5 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...
CLEARVIEW CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN
PLEASANT HILL.

&&

LAT...LON 3886 9506 3888 9506 3898 9506 3898 9503
      3898 9502 3899 9502 3900 9502 3890 9495
      3884 9505
TIME...MOT...LOC 2136Z 320DEG 5KT 3889 9509

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

$$

DUX

481 
WWUS53 KEAX 082141
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
441 PM CDT SUN JUL 8 2012

KSC091-082151-
/O.EXP.KEAX.SV.W.0085.000000T0000Z-120708T2145Z/
JOHNSON KS-
441 PM CDT SUN JUL 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL JOHNSON COUNTY IN
EAST CENTRAL KANSAS WILL EXPIRE AT 445 PM CDT...

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

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN PLEASANT HILL.

LAT...LON 3886 9506 3888 9506 3898 9506 3898 9503
      3898 9502 3899 9502 3900 9502 3890 9495
      3884 9505
TIME...MOT...LOC 2141Z 320DEG 5KT 3888 9508

$$

DUX

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 8, 3:23 AM CDT	Heat Advisory	EAX	Linn	16 hr
Jul 8, 3:43 PM CDT	Special Weather Statement	EAX	Leavenworth	32 min
Jul 8, 3:48 PM CDT	Severe Thunderstorm Warning	EAX	Leavenworth	27 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.