Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 56, NWS Kansas City, MO

May 24, 2012Clay County, Platte County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 24, 2012, 7:00 PM CDT for Clay County, Platte County, Missouri. It was in force for 30 min. 1 report 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 24, 2012, 7:00 PM CDT (00:00 UTC)
Expired: May 24, 2012, 7:30 PM CDT
In force: 30 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Clay County, MO, Platte County, MO

The radar

The Pleasant Hill radar (KEAX), 56 km from the middle of the area, began a volume at 00:03 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 24, 7:08 PM CDT	HAIL 1	Weatherby Lake, MO	NICKEL TO QUARTER SIZE HAIL REPORTED NWS EMPLOYEE.

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

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 0.0 hours before the alert went out and 93 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: 97 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 2067 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

170 
WUUS53 KEAX 250000
SVREAX
MOC047-165-250030-
/O.NEW.KEAX.SV.W.0056.120525T0000Z-120525T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
700 PM CDT THU MAY 24 2012

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN CLAY COUNTY IN WEST CENTRAL MISSOURI...
  SOUTHEASTERN PLATTE COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 730 PM CDT

* AT 658 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WEATHERBY
  LAKE...AND MOVING EAST AT 35 MPH.

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

  SOURCE...RADAR INDICATED.

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

* LOCATIONS IMPACTED INCLUDE...
  WEATHERBY LAKE...PARKVILLE...RIVERSIDE...GLADSTONE...SMITHVILLE...
  CLAYCOMO...LIBERTY...PLATTE WOODS...FERRELVIEW...LAKE WAUKOMIS...
  HOUSTON LAKE...NORTHMOOR...OAKVIEW...PLEASANT VALLEY...GLENAIRE...
  KANSAS CITY INTL ARPT...OAKWOOD PARK...OAKWOOD AND OAKS.

THIS WILL IMPACT THE FOLLOWING INTERSTATES...

  I-35 BETWEEN MILE MARKERS 8 AND 24.
  I-435 LOOP FROM MILE MARKERS 21 TO 53.
  I-29 BETWEEN MILE MARKERS 1 AND 16.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3945 9442 3919 9434 3918 9438 3920 9439
      3920 9441 3919 9440 3916 9466 3918 9467
      3917 9474 3921 9479 3921 9483 3925 9483
      3928 9487 3929 9488
TIME...MOT...LOC 0000Z 256DEG 31KT 3923 9475

HAIL...1.00IN
WIND...60 MPH

$$

AB

1 follow-up statement

922 
WWUS53 KEAX 250025
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
725 PM CDT THU MAY 24 2012

MOC047-165-250036-
/O.EXP.KEAX.SV.W.0056.000000T0000Z-120525T0030Z/
CLAY MO-PLATTE MO-
725 PM CDT THU MAY 24 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN PLATTE AND
WESTERN CLAY COUNTIES WILL EXPIRE AT 730 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 3945 9442 3919 9434 3918 9438 3920 9439
      3920 9441 3919 9440 3916 9466 3918 9467
      3917 9474 3921 9479 3921 9483 3925 9483
      3928 9487 3929 9488
TIME...MOT...LOC 0026Z 256DEG 31KT 3928 9447

$$

AB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 7:14 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Platte	8 min
May 24, 8:18 PM CDT	Special Weather Statement	EAX	Jackson	27 min
May 25, 6:15 AM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	30 min
May 25, 7:32 AM CDT	Special Weather Statement	EAX	Bates	28 min
May 25, 7:41 AM CDT	Severe Thunderstorm Warning	EAX	Bates	19 min
May 25, 8:23 AM CDT	Areal Flood Advisory	EAX	Cass, Jackson	6 hr
May 25, 8:46 AM CDT	Special Weather Statement	EAX	Jackson	29 min
May 25, 9:12 AM CDT	Flash Flood Warning	EAX	Cass, Jackson	6 hr
May 25, 9:35 AM CDT	Special Weather Statement	EAX	Johnson	25 min
May 25, 10:18 AM CDT	Flash Flood Warning	EAX	Johnson, Lafayette	6 hr
May 25, 10:32 AM CDT	Special Weather Statement	EAX	Pettis	43 min
May 25, 11:02 AM CDT	Severe Thunderstorm Warning	EAX	Pettis	28 min
May 25, 11:09 AM CDT	Areal Flood Warning	EAX	Cass	12 hr
May 25, 11:12 AM CDT	River Flood Warning	EAX	Cass, Henry, Johnson	9 hr
May 25, 11:47 AM CDT	Special Weather Statement	EAX	Cooper	28 min
May 25, 2:55 PM CDT	Areal Flood Warning	EAX	Cass, Jackson	8 hr
May 25, 3:03 PM CDT	Special Weather Statement	EAX	Worth	42 min
May 25, 3:11 PM CDT	Severe Thunderstorm Warning	EAX	Worth	19 min
May 25, 3:33 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway, Worth	42 min
May 25, 4:02 PM CDT	Severe Thunderstorm Warning	EAX	Harrison, Mercer, Worth	28 min
May 25, 4:28 PM CDT	Special Weather Statement	EAX	Mercer	47 min
May 25, 4:48 PM CDT	Special Weather Statement	EAX	Putnam	42 min
May 25, 5:13 PM CDT	Special Weather Statement	EAX	Putnam	47 min
May 25, 5:34 PM CDT	Severe Thunderstorm Warning	EAX	Putnam, Schuyler	25 min

Nearby

Severe Thunderstorm Warnings in Missouri, 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.