Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 23, NWS St. Louis, MO

March 2, 2012Cole County, Osage County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 2, 2012, 3:59 AM CST for Cole County, Osage County, Missouri. It was in force for 46 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 2, 2012, 3:59 AM CST (09:59 UTC)
Expired: Mar 2, 2012, 4:45 AM CST
In force: 46 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Cole County, MO, Osage County, MO

The radar

The St Louis radar (KLSX), 138 km from the middle of the area, began a volume at 10:02 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
Mar 2, 4:00 AM CST	HAIL 1.25	Taos, MO
Mar 2, 4:13 AM CST	HAIL 1	Meta, MO
Mar 2, 4:17 AM CST	HAIL 0.88	Meta, MO
Mar 2, 4:25 AM CST	HAIL 1.75	7 N Vienna, 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 2, 2:07 AM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 10.0 hours before the alert went out and 219 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: 3164 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 396 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.

310 
WUUS53 KLSX 020959
SVRLSX
MOC051-151-021045-
/O.NEW.KLSX.SV.W.0023.120302T0959Z-120302T1045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
359 AM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN COLE COUNTY IN CENTRAL MISSOURI...
  SOUTHWESTERN OSAGE COUNTY IN CENTRAL MISSOURI...

* UNTIL 445 AM CST

* AT 357 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 7 MILES SOUTHEAST OF ELDON...AND MOVING EAST AT
  50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LINN...HICKORY HILL...BRAZITO...ST. THOMAS...WARDSVILLE...TAOS...
  WESTPHALIA...FREEBURG...RICH FOUNTAIN...EUGENE...META...OSAGE
  BEND...KOELTZTOWN...ARGYLE...SCHUBERT...OSAGE CITY...LOOSE CREEK
  AND BONNOTS MILL.

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 3850 9247 3857 9213 3856 9210 3856 9202
      3862 9191 3828 9168 3829 9220 3833 9220
      3832 9226 3834 9229 3833 9240 3842 9241
      3843 9249 3844 9249
TIME...MOT...LOC 0958Z 255DEG 42KT 3831 9245
WIND...HAIL <50MPH 1.00IN

$$

KANOFSKY

2 follow-up statements

986 
WWUS53 KLSX 021021
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
421 AM CST FRI MAR 2 2012

MOC051-151-021045-
/O.CON.KLSX.SV.W.0023.000000T0000Z-120302T1045Z/
COLE MO-OSAGE MO-
421 AM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
OSAGE AND SOUTHEASTERN COLE COUNTIES UNTIL 445 AM CST...

AT 419 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR ST. THOMAS...OR 14 MILES SOUTH OF JEFFERSON
CITY...MOVING EAST AT 50 MPH.

NICKEL SIZE HAIL WAS REPORTED NEAR META WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  LINN...TAOS...WESTPHALIA...FREEBURG...RICH FOUNTAIN...KOELTZTOWN...
  ARGYLE...SCHUBERT...OSAGE CITY...LOOSE CREEK...BONNOTS MILL AND
  FRANKENSTEIN.

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 3857 9215 3856 9202 3862 9191 3829 9168
      3829 9220 3833 9220 3832 9226 3834 9229
      3854 9229
TIME...MOT...LOC 1020Z 255DEG 42KT 3837 9213
WIND...HAIL <50MPH 1.00IN

$$

KANOFSKY

562 
WWUS53 KLSX 021031
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
431 AM CST FRI MAR 2 2012

MOC051-021041-
/O.CAN.KLSX.SV.W.0023.000000T0000Z-120302T1045Z/
COLE MO-
431 AM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN COLE COUNTY IS
CANCELLED...

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

LAT...LON 3847 9208 3847 9203 3848 9202 3851 9201
      3852 9203 3856 9202 3862 9191 3829 9168
      3828 9200 3829 9200 3829 9209 3846 9210
TIME...MOT...LOC 1031Z 255DEG 42KT 3840 9197

$$

MOC151-021045-
/O.CON.KLSX.SV.W.0023.000000T0000Z-120302T1045Z/
OSAGE MO-
431 AM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR OSAGE COUNTY
UNTIL 445 AM CST...

AT 428 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL.  THIS
STORM WAS LOCATED NEAR WESTPHALIA...OR 11 MILES SOUTHWEST OF LINN...
MOVING EAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  LINN...FREEBURG...RICH FOUNTAIN...LOOSE CREEK...BONNOTS MILL AND
  FRANKENSTEIN.

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 3847 9208 3847 9203 3848 9202 3851 9201
      3852 9203 3856 9202 3862 9191 3829 9168
      3828 9200 3829 9200 3829 9209 3846 9210
TIME...MOT...LOC 1031Z 255DEG 42KT 3840 9197
WIND...HAIL <50MPH 1.75IN

$$

KANOFSKY

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 2, 3:34 AM CST	Severe Thunderstorm Warning	LSX	Callaway, Cole, Moniteau, Osage	41 min
Mar 2, 4:08 AM CST	Severe Thunderstorm Warning	LSX	Callaway, Cole, Franklin, Gasconade, Montgomery, Osage and 1 more	37 min
Mar 2, 4:37 AM CST	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Osage	38 min
Mar 2, 4:41 AM CST	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Lincoln, Montgomery, Warren	49 min
Mar 2, 5:10 AM CST	Severe Thunderstorm Warning	LSX	Lincoln, Saint Charles, Warren	39 min
Mar 2, 5:13 AM CST	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis, Warren	47 min
Mar 2, 5:56 AM CST	Severe Thunderstorm Warning	LSX	Lincoln, Saint Charles, Saint Louis, City of Saint Louis	49 min
Mar 2, 5:59 AM CST	Severe Thunderstorm Warning	LSX	Callaway	28 min
Mar 2, 6:36 AM CST	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Pike	39 min
Mar 2, 7:07 AM CST	Severe Thunderstorm Warning	LSX	Lincoln, Pike	30 min
Mar 2, 1:59 PM CST	Wind Advisory	LSX	Crawford, Franklin, Gasconade, Iron, Jefferson, Lincoln and 10 more	4 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.