Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 22, NWS Kansas City, MO

March 29, 2012Atchison County, Nodaway County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Mar 29, 2012, 8:43 PM CDT for Atchison County, Nodaway County, Missouri. It was in force for 32 min. 4 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: Mar 29, 2012, 8:43 PM CDT (01:43 UTC)
Expired: Mar 29, 2012, 9:15 PM CDT
In force: 32 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.5 in
Wind: 50.0 mph

Counties Atchison County, MO, Nodaway County, MO

The radar

The Omaha radar (KOAX), 148 km from the middle of the area, began a volume at 01:43 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
Mar 29, 8:43 PM CDT	HAIL 1	Elmo, MO
Mar 29, 8:48 PM CDT	HAIL 1.75	3 Nw Burlington Junctio, MO	DAWSONVILLE...APROX 3 MILES NORTHWEST BURLINGTON JUNCTION PING PONG TO GOLF BALL SIZE HAIL
Mar 29, 8:51 PM CDT	TSTM WND GST 60	Clearmont, MO
Mar 29, 8:59 PM CDT	HAIL 1.75	3 W Clearmont, MO

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
Mar 29, 5:10 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.7 hours before the alert went out and 148 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: 761 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 647 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 99 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

733 
WUUS53 KEAX 300143
SVREAX
MOC005-147-300215-
/O.NEW.KEAX.SV.W.0022.120330T0143Z-120330T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
843 PM CDT THU MAR 29 2012

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ATCHISON COUNTY IN NORTHWEST MISSOURI...
  NORTHWESTERN NODAWAY COUNTY IN NORTHWEST MISSOURI...

* UNTIL 915 PM CDT

* AT 839 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
  THUNDERSTORM PRODUCING PING PONG BALL SIZE HAIL.  THIS STORM WAS
  LOCATED 6 MILES NORTH OF BURLINGTON JUNCTION...OR 17 MILES         
  NORTHEAST OF TARKIO...AND MOVING EAST AT 15 MPH. AT 804 PM...FIRE  
  AND RESCUE CREWS REPORTED PING PONG BALL SIZE HAIL WEST OF ESTBORO.
  AT 828 PM...LOCAL LAW ENFORCEMENT REPORTED GOLF BALL SIZE HAIL 2   
  MILES SOUTH OF WESTBORO.

* LOCATIONS IMPACTED INCLUDE...
  HOPKINS AND CLEARMONT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR NORTHEAST KANSAS AND NORTHWEST MISSOURI.

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 4058 9476 4050 9473 4041 9523 4058 9530
TIME...MOT...LOC 0143Z 252DEG 15KT 4054 9507
WIND...HAIL <50MPH 1.50IN

$$

ACH

2 follow-up statements

616 
WWUS53 KEAX 300154
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
854 PM CDT THU MAR 29 2012

MOC005-300203-
/O.CAN.KEAX.SV.W.0022.000000T0000Z-120330T0215Z/
ATCHISON MO-
854 PM CDT THU MAR 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ATCHISON COUNTY
IS CANCELLED...

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

LAT...LON 4058 9476 4050 9473 4042 9517 4048 9518
      4048 9520 4058 9520
TIME...MOT...LOC 0153Z 252DEG 15KT 4055 9502

$$

MOC147-300215-
/O.CON.KEAX.SV.W.0022.000000T0000Z-120330T0215Z/
NODAWAY MO-
854 PM CDT THU MAR 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
NODAWAY COUNTY UNTIL 915 PM CDT...

AT 848 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...AND PING
PONG BALL SIZE HAIL.  THIS STORM WAS LOCATED 7 MILES NORTH OF
BURLINGTON JUNCTION...OR 17 MILES NORTHWEST OF MARYVILLE...MOVING
EAST AT 15 MPH. 

AT 828 PM...LOCAL LAW ENFORCEMENT REPORTED GOLF BALL SIZE HAIL 2
MILES SOUTH OF WESTBORO.
AT 842 PM...TRAINED WEATHER SPOTTERS REPORTED HALF DOLLAR SIZE HAIL 3
MILES NORTH OF CLEARMONT.
AT 843 PM...TRAINED WEATHER SPOTTERS REPORTED QUARTER SIZE HAIL EAST
OF LMO.
AT 851 PM...TRAINED WEATHER SPOTTERS REPORTED A 60 MPH WIND GUST IN
CLEARMONT.

LOCATIONS IMPACTED INCLUDE...
  HOPKINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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 4058 9476 4050 9473 4042 9517 4048 9518
      4048 9520 4058 9520
TIME...MOT...LOC 0153Z 252DEG 15KT 4055 9502
WIND...HAIL 60MPH 1.50IN

$$

ACH

316 
WWUS53 KEAX 300215
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
915 PM CDT THU MAR 29 2012

MOC147-300225-
/O.EXP.KEAX.SV.W.0022.000000T0000Z-120330T0215Z/
NODAWAY MO-
915 PM CDT THU MAR 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN NODAWAY COUNTY
HAS EXPIRED...

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

LAT...LON 4058 9476 4050 9473 4042 9517 4048 9518
      4048 9520 4058 9520
TIME...MOT...LOC 0215Z 252DEG 15KT 4058 9490

$$

ACH

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 29, 7:26 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	34 min
Mar 29, 7:36 PM CDT	Tornado Warning	EAX	Atchison	24 min
Mar 29, 7:57 PM CDT	Severe Thunderstorm Warning	EAX	Atchison, Nodaway	48 min
Mar 29, 8:08 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	37 min
Mar 29, 8:40 PM CDT	Severe Thunderstorm Warning	EAX	Atchison, Holt	35 min
Mar 30, 12:20 AM CDT	River Flood Warning	EAX	Carroll, Chariton, Linn, Livingston	39 hr
Mar 30, 4:54 AM CDT	River Flood Warning	EAX	Andrew, Nodaway	15 hr
Mar 30, 9:45 AM CDT	River Flood Warning	EAX	Andrew, Buchanan	23 hr

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.