Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 90, NWS Kansas City, MO

August 8, 2012Andrew County, Holt County, Missouri; Doniphan County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Aug 8, 2012, 6:09 PM CDT for Andrew County, Holt County, Missouri; Doniphan County, Kansas. It was in force for 36 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
Aug 8, 2012, 6:09 PM CDT (23:09 UTC)
Expired
Aug 8, 2012, 6:45 PM CDT
In force
36 min
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Doniphan County, KS, Andrew County, MO, Holt County, MO

The radar

The Topeka radar (KTWX), 134 km from the middle of the area, began a volume at 23:10 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.

IssuedProductOfficeLasted
Aug 8, 4:53 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 11.2 hours before the alert went out and 107 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 12:00Z on 2012-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 597 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2012-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.193958Sfc1 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
597 J/kg
Mixed-layer CIN
-298 J/kg
Mixed-layer LCL
2032 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
34 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.

406 
WUUS53 KEAX 082309
SVREAX
KSC043-MOC003-087-082345-
/O.NEW.KEAX.SV.W.0090.120808T2309Z-120808T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
609 PM CDT WED AUG 8 2012

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DONIPHAN COUNTY IN NORTHEAST KANSAS...
  WEST CENTRAL ANDREW COUNTY IN NORTHWEST MISSOURI...
  SOUTHEASTERN HOLT COUNTY IN NORTHWEST MISSOURI...

* UNTIL 645 PM CDT

* AT 605 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
  LINE EXTENDING FROM FOREST CITY TO WHITE CLOUD TO HIGHLAND...AND
  MOVING SOUTHEAST AT 35 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...
  TROY...OREGON...FILLMORE AND FANNING.

THIS WILL IMPACT

 I-29 BETWEEN MILE MARKERS 62 AND 78.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3992 9532 4008 9527 4004 9494 3982 9493
      3971 9502 3981 9535 3987 9535
TIME...MOT...LOC 2309Z 299DEG 31KT 4002 9520 3993 9521
          3983 9529

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

$$

DEROCHE
2 follow-up statements
574 
WWUS53 KEAX 082331
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
631 PM CDT WED AUG 8 2012

KSC043-MOC003-087-082345-
/O.CON.KEAX.SV.W.0090.000000T0000Z-120808T2345Z/
DONIPHAN KS-HOLT MO-ANDREW MO-
631 PM CDT WED AUG 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
ANDREW...SOUTHEASTERN HOLT AND CENTRAL DONIPHAN COUNTIES UNTIL 645 PM
CDT...

AT 627 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM 6 MILES SOUTHWEST OF FILLMORE TO 6 MILES
NORTHEAST OF TROY TO TROY...AND MOVING SOUTHEAST AT 35 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...
  MAINLY RURAL AREAS OF EASTERN DONIPHAN AND WESTERN ANDREW COUNTIES.

THIS WILL IMPACT

 I-29 BETWEEN MILE MARKERS 62 AND 78.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3978 9525 3992 9518 4007 9519 4004 9494
      3982 9493 3971 9502
TIME...MOT...LOC 2331Z 299DEG 31KT 3993 9498 3984 9499
          3974 9508

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

$$

DEROCHE
696 
WWUS53 KEAX 082341
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
641 PM CDT WED AUG 8 2012

KSC043-MOC003-087-082351-
/O.EXP.KEAX.SV.W.0090.000000T0000Z-120808T2345Z/
DONIPHAN KS-HOLT MO-ANDREW MO-
641 PM CDT WED AUG 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL ANDREW...
SOUTHEASTERN HOLT AND CENTRAL DONIPHAN COUNTIES WILL EXPIRE AT 645 PM
CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED WITH THE 
STRONGEST AREA HAVING MOVED OUT OF THE WARNED AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1AM.

LAT...LON 3978 9525 3992 9518 4007 9519 4004 9494
      3982 9493 3971 9502
TIME...MOT...LOC 2341Z 299DEG 31KT 3989 9488 3980 9489
          3970 9498

$$

DEROCHE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 6:18 PM CDTSevere Thunderstorm WarningEAXBuchanan, Platte27 min
Aug 8, 6:36 PM CDTSevere Thunderstorm WarningEAXAndrew, Buchanan24 min
Aug 8, 6:45 PM CDTSevere Thunderstorm WarningEAXBuchanan, Platte30 min
Aug 8, 6:56 PM CDTSevere Thunderstorm WarningEAXAndrew, Buchanan, Clinton, DeKalb34 min
Aug 8, 4:59 PM CDTSpecial Weather StatementEAXLinn46 min
Aug 8, 5:55 PM CDTSpecial Weather StatementEAXDoniphan35 min
Aug 8, 6:15 PM CDTSpecial Weather StatementEAXAtchison30 min
Aug 8, 6:24 PM CDTSpecial Weather StatementEAXLeavenworth36 min
Aug 8, 6:29 PM CDTSevere Thunderstorm WarningEAXLeavenworth31 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2012Severe Thunderstorm Warnings in Kansas, 2012Every 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.