Alert archive / Missouri / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 71, NWS Kansas City, MO

May 12, 2011Cooper County, Pettis County, Saline County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 12, 2011, 6:16 PM CDT for Cooper County, Pettis County, Saline County, Missouri. It was in force for 44 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: May 12, 2011, 6:16 PM CDT (23:16 UTC)
Expired: May 12, 2011, 7:00 PM CDT
In force: 44 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Cooper County, MO, Pettis County, MO, Saline County, MO

The radar

The Pleasant Hill radar (KEAX), 110 km from the middle of the area, began a volume at 23:17 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.

Issued	Product	Office	Lasted
May 12, 5:31 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.3 hours before the alert went out and 214 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1317 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 180 m²/s²
0-3 km storm-relative helicity: 134 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.

687 
WUUS53 KEAX 122316
SVREAX
MOC053-159-195-130000-
/O.NEW.KEAX.SV.W.0071.110512T2316Z-110513T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
616 PM CDT THU MAY 12 2011

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  COOPER COUNTY IN CENTRAL MISSOURI...
  EASTERN PETTIS COUNTY IN CENTRAL MISSOURI...
  SOUTHEASTERN SALINE COUNTY IN CENTRAL MISSOURI...

* UNTIL 700 PM CDT

* AT 613 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR SEDALIA...AND MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SMITHTON...OTTERVILLE...PILOT GROVE...BUNCETON...CLIFTON CITY...
  LAMINE...BLACKWATER AND NELSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3868 9285 3869 9305 3853 9307 3853 9324
      3871 9325 3911 9302 3884 9268
TIME...MOT...LOC 2316Z 231DEG 19KT 3869 9315
WIND...HAIL <50MPH 1.00IN

$$

HAWBLITZEL

3 follow-up statements

776 
WWUS53 KEAX 122324
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
624 PM CDT THU MAY 12 2011

MOC053-159-195-130000-
/O.CON.KEAX.SV.W.0071.000000T0000Z-110513T0000Z/
COOPER MO-PETTIS MO-SALINE MO-
624 PM CDT THU MAY 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
SALINE...EASTERN PETTIS AND WESTERN COOPER COUNTIES UNTIL 700 PM
CDT...

AT 622 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR SMITHTON...OR 6 MILES EAST OF SEDALIA...MOVING
NORTHEAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  OTTERVILLE...PILOT GROVE...BUNCETON...CLIFTON CITY...LAMINE...
  BLACKWATER AND NELSON.

THIS WILL IMPACT

 I-70 BETWEEN MILE MARKERS 84 AND 100.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3868 9285 3869 9305 3853 9307 3853 9324
      3871 9325 3911 9302 3884 9268
TIME...MOT...LOC 2324Z 231DEG 19KT 3872 9311
WIND...HAIL <50MPH 1.00IN

$$

CDB

754 
WWUS53 KEAX 122337
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
637 PM CDT THU MAY 12 2011

MOC159-195-122346-
/O.CAN.KEAX.SV.W.0071.000000T0000Z-110513T0000Z/
PETTIS MO-SALINE MO-
637 PM CDT THU MAY 12 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SALINE AND
EASTERN PETTIS COUNTIES IS CANCELLED...

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

LAT...LON 3868 9285 3869 9305 3890 9305 3896 9283
      3884 9268
TIME...MOT...LOC 2336Z 267DEG 30KT 3877 9286

$$

MOC053-130000-
/O.CON.KEAX.SV.W.0071.000000T0000Z-110513T0000Z/
COOPER MO-
637 PM CDT THU MAY 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN COOPER
COUNTY UNTIL 700 PM CDT...

AT 632 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 6 MILES WEST OF BUNCETON...OR 10 MILES NORTHWEST OF
TIPTON...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  BUNCETON.

THIS WILL IMPACT

 I-70 BETWEEN MILE MARKERS 94 AND 100.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3868 9285 3869 9305 3890 9305 3896 9283
      3884 9268
TIME...MOT...LOC 2336Z 267DEG 30KT 3877 9286
WIND...HAIL <50MPH 1.00IN

$$

CDB

534 
WWUS53 KEAX 122355
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
655 PM CDT THU MAY 12 2011

MOC053-130005-
/O.EXP.KEAX.SV.W.0071.000000T0000Z-110513T0000Z/
COOPER MO-
655 PM CDT THU MAY 12 2011

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN COOPER COUNTY HAS 
BEEN REISSUED...

PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER
INFORMATION.

REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR 
EASTERN COOPER COUNTY UNTIL 730 PM CDT.

LAT...LON 3868 9285 3869 9305 3890 9305 3896 9283
      3884 9268
TIME...MOT...LOC 2355Z 267DEG 30KT 3878 9266

$$

CDB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 7:46 PM CDT	Special Weather Statement	EAX	Holt	29 min
May 11, 8:41 PM CDT	Special Weather Statement	EAX	Henry	34 min
May 11, 8:53 PM CDT	Special Weather Statement	EAX	Ray	37 min
May 11, 9:06 PM CDT	Special Weather Statement	EAX	Johnson	24 min
May 11, 9:22 PM CDT	Special Weather Statement	EAX	Caldwell, Ray	23 min
May 11, 9:26 PM CDT	Special Weather Statement	EAX	Lafayette	34 min
May 11, 9:50 PM CDT	Special Weather Statement	EAX	Carroll, Ray, Saline	25 min
May 11, 9:57 PM CDT	River Flood Warning	EAX	Andrew, Buchanan	143 days
May 11, 10:52 PM CDT	River Flood Warning	EAX	Andrew, Holt, Nodaway	7 hr
May 12, 6:31 AM CDT	River Flood Warning	EAX	Andrew, Nodaway	12 hr
May 12, 2:54 PM CDT	River Flood Warning	EAX	Andrew, Buchanan	19 hr
May 12, 4:59 PM CDT	Special Weather Statement	EAX	Bates	31 min
May 12, 5:11 PM CDT	Severe Thunderstorm Warning	EAX	Bates	36 min
May 12, 5:45 PM CDT	Severe Thunderstorm Warning	EAX	Henry	30 min
May 12, 6:12 PM CDT	Severe Thunderstorm Warning	EAX	Henry, Pettis	21 min
May 12, 6:42 PM CDT	Special Weather Statement	EAX	Pettis	33 min
May 12, 6:54 PM CDT	Severe Thunderstorm Warning	EAX	Cooper	36 min

Nearby

Severe Thunderstorm Warnings in Missouri, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.