Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 16, NWS Kansas City, MO

March 29, 2012Daviess County, DeKalb County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Mar 29, 2012, 11:33 AM CDT for Daviess County, DeKalb County, Missouri. It was in force for 27 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: Mar 29, 2012, 11:33 AM CDT (16:33 UTC)
Expired: Mar 29, 2012, 12:00 PM CDT
In force: 27 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Daviess County, MO, DeKalb County, MO

The radar

The Pleasant Hill radar (KEAX), 133 km from the middle of the area, began a volume at 16:32 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, 4.6 hours before the alert went out and 167 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: 1633 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 545 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

246 
WUUS53 KEAX 291633
SVREAX
MOC061-063-291700-
/O.NEW.KEAX.SV.W.0016.120329T1633Z-120329T1700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1133 AM CDT THU MAR 29 2012

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN DAVIESS COUNTY IN NORTH CENTRAL MISSOURI...
  NORTHEASTERN DEKALB COUNTY IN NORTHWEST MISSOURI...

* UNTIL NOON CDT

* AT 1126 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 6 MILES NORTHEAST OF MAYSVILLE...AND MOVING EAST
  AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PATTONSBURG...WEATHERBY...SANTA ROSA AND ALTAMONT.

THIS WILL IMPACT

 I-35 BETWEEN MILE MARKERS 64 AND 75.

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.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4005 9403 3987 9403 3991 9440 4004 9440
      4004 9423 4003 9422 4005 9422
TIME...MOT...LOC 1632Z 270DEG 15KT 3996 9429
WIND...HAIL <50MPH 1.00IN

$$

CUTTER

2 follow-up statements

273 
WWUS53 KEAX 291647
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1147 AM CDT THU MAR 29 2012

MOC061-063-291700-
/O.CON.KEAX.SV.W.0016.000000T0000Z-120329T1700Z/
DAVIESS MO-DEKALB MO-
1147 AM CDT THU MAR 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
DEKALB AND WESTERN DAVIESS COUNTIES UNTIL NOON CDT...


AT 1142 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 8 MILES SOUTHWEST OF PATTONSBURG...OR 8 MILES
NORTHEAST OF MAYSVILLE...MOVING EAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  ALTAMONT.

THIS WILL IMPACT

 I-35 BETWEEN MILE MARKERS 64 AND 75.

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.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3987 9403 3990 9429 4004 9429 4004 9423
      4003 9422 4004 9422 4005 9403
TIME...MOT...LOC 1647Z 270DEG 15KT 3996 9421
WIND...HAIL <50MPH 1.00IN

$$

CUTTER

701 
WWUS53 KEAX 291701
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1201 PM CDT THU MAR 29 2012

MOC061-063-291711-
/O.EXP.KEAX.SV.W.0016.000000T0000Z-120329T1700Z/
DAVIESS MO-DEKALB MO-
1201 PM CDT THU MAR 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DEKALB AND
WESTERN DAVIESS COUNTIES 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 AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM.

LAT...LON 3987 9403 3990 9429 4004 9429 4004 9423
      4003 9422 4004 9422 4005 9403
TIME...MOT...LOC 1647Z 270DEG 15KT 3996 9421

$$

CUTTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 8:49 PM CDT	Special Weather Statement	EAX	Ray	41 min
Mar 28, 8:51 PM CDT	Special Weather Statement	EAX	Clay	39 min
Mar 28, 9:18 PM CDT	Special Weather Statement	EAX	Cooper	42 min
Mar 28, 9:44 PM CDT	Special Weather Statement	EAX	Cooper	31 min
Mar 28, 9:52 PM CDT	Special Weather Statement	EAX	Platte	23 min
Mar 28, 9:59 PM CDT	Special Weather Statement	EAX	Saline	31 min
Mar 28, 10:03 PM CDT	Special Weather Statement	EAX	Jackson	27 min
Mar 28, 10:16 PM CDT	Special Weather Statement	EAX	Cooper	29 min
Mar 28, 10:23 PM CDT	Special Weather Statement	EAX	Buchanan	37 min
Mar 28, 10:25 PM CDT	Special Weather Statement	EAX	Clay	35 min
Mar 28, 10:29 PM CDT	Special Weather Statement	EAX	Johnson	31 min
Mar 28, 10:44 PM CDT	Special Weather Statement	EAX	Henry	31 min
Mar 28, 11:02 PM CDT	Special Weather Statement	EAX	Platte	28 min
Mar 28, 11:06 PM CDT	Special Weather Statement	EAX	Ray	24 min
Mar 28, 11:11 PM CDT	Special Weather Statement	EAX	Johnson	34 min
Mar 28, 11:26 PM CDT	Special Weather Statement	EAX	Henry	34 min
Mar 29, 8:07 AM CDT	River Flood Warning	EAX	Cooper	7 hr
Mar 29, 8:27 AM CDT	River Flood Warning	EAX	Cooper, Saline	28 hr
Mar 29, 9:49 AM CDT	Special Weather Statement	EAX	DeKalb	26 min
Mar 29, 10:08 AM CDT	River Flood Warning	EAX	Platte	3 days
Mar 29, 10:08 AM CDT	River Flood Warning	EAX	Platte	3 days
Mar 29, 10:19 AM CDT	Special Weather Statement	EAX	DeKalb	41 min
Mar 29, 10:48 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Daviess, DeKalb	27 min
Mar 29, 11:15 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Daviess	30 min
Mar 29, 11:57 AM CDT	Special Weather Statement	EAX	Daviess	48 min
Mar 29, 12:04 PM CDT	Special Weather Statement	EAX	Clinton	41 min
Mar 29, 12:12 PM CDT	Special Weather Statement	EAX	Daviess	48 min
Mar 29, 12:22 PM CDT	Special Weather Statement	EAX	Chariton	38 min
Mar 29, 2:01 PM CDT	River Flood Warning	EAX	Buchanan	63 hr
Mar 29, 6:46 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	44 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.