Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 33, NWS St. Louis, MO

March 2, 2012Calhoun County, Pike County, Illinois; Lincoln County, Pike County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 2, 2012, 7:07 AM CST for Calhoun County, Pike County, Illinois; Lincoln County, Pike 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: Mar 2, 2012, 7:07 AM CST (13:07 UTC)
Expired: Mar 2, 2012, 7:37 AM CST
In force: 30 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.5 in
Wind: 50.0 mph

Counties Calhoun County, IL, Pike County, IL, Lincoln County, MO, Pike County, MO

The radar

The St Louis radar (KLSX), 55 km from the middle of the area, began a volume at 13:07 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 2, 7:15 AM CST	HAIL 0.7	3 Ene Whiteside, MO	MULTIPLE REPORTS OF HAIL COVERING THE GROUND

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, 5:52 AM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 1.1 hours before the alert went out and 215 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: 1770 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 163 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.

224 
WUUS53 KLSX 021307
SVRLSX
ILC013-149-MOC113-163-021400-
/O.NEW.KLSX.SV.W.0033.120302T1307Z-120302T1400Z/

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

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CALHOUN COUNTY IN SOUTHWEST ILLINOIS...
  SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS...
  NORTHERN LINCOLN COUNTY IN EAST CENTRAL MISSOURI...
  SOUTHEASTERN PIKE COUNTY IN NORTHEAST MISSOURI...

* UNTIL 800 AM CST

* AT 703 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
  THIS STORM WAS LOCATED 8 MILES NORTHWEST OF DAVIS...OR 14 MILES
  NORTHWEST OF TROY...AND MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ELSBERRY...EOLIA...BELLEVIEW...HARDIN...EDGEWOOD...WHITESIDE...NEW
  HOPE...PAYNESVILLE...ANNADA...MOZIER...HAMBURG...MICHAEL...
  KAMPSVILLE AND BEECREEK.

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 3917 9060 3914 9062 3908 9060 3905 9119
      3922 9119 3949 9063
TIME...MOT...LOC 1308Z 246DEG 49KT 3915 9106
WIND...HAIL <50MPH 1.50IN

$$

CVKING

4 follow-up statements

350 
WWUS53 KLSX 021314
SVSLSX

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

ILC013-149-MOC113-163-021400-
/O.CON.KLSX.SV.W.0033.000000T0000Z-120302T1400Z/
PIKE IL-CALHOUN IL-LINCOLN MO-PIKE MO-
714 AM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CALHOUN COUNTY
IN SOUTHWEST ILLINOIS...AND SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL
ILLINOIS...AND NORTHEASTERN LINCOLN COUNTY IN EAST CENTRAL
MISSOURI...AND EAST CENTRAL PIKE COUNTY IN NORTHEAST MISSOURI UNTIL
800 AM CST...

AT 712 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL.  THIS
STORM WAS LOCATED NEAR EOLIA...OR 11 MILES WEST OF ELSBERRY...MOVING
NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  ELSBERRY...BELLEVIEW...HARDIN...NEW HOPE...PAYNESVILLE...ANNADA...
  MOZIER...HAMBURG...MICHAEL...KAMPSVILLE AND BEECREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3918 9060 3914 9062 3908 9060 3908 9106
      3925 9111 3949 9063
TIME...MOT...LOC 1314Z 246DEG 47KT 3918 9097
WIND...HAIL <50MPH 1.75IN

$$

CVKING

464 
WWUS53 KLSX 021324
SVSLSX

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

ILC013-149-MOC113-163-021400-
/O.CON.KLSX.SV.W.0033.000000T0000Z-120302T1400Z/
PIKE IL-CALHOUN IL-LINCOLN MO-PIKE MO-
724 AM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CALHOUN COUNTY
IN SOUTHWEST ILLINOIS...AND SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL
ILLINOIS...AND NORTHEASTERN LINCOLN COUNTY IN EAST CENTRAL
MISSOURI...AND EAST CENTRAL PIKE COUNTY IN NORTHEAST MISSOURI UNTIL
800 AM CST...

AT 720 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL.  THIS
STORM WAS LOCATED 6 MILES NORTHWEST OF ELSBERRY...MOVING NORTHEAST AT
55 MPH.

SPOTTERS HAVE REPORTED HAIL COVERING THE GROUND NEAR WHITESIDE.

LOCATIONS IMPACTED INCLUDE...
  BELLEVIEW...MOZIER...HAMBURG...MICHAEL...KAMPSVILLE AND BEECREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3919 9060 3913 9089 3928 9098 3949 9063
TIME...MOT...LOC 1324Z 246DEG 47KT 3923 9082
WIND...HAIL <50MPH 1.75IN

$$

CVKING

938 
WWUS53 KLSX 021333
SVSLSX

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

MOC113-163-021343-
/O.CAN.KLSX.SV.W.0033.000000T0000Z-120302T1400Z/
LINCOLN MO-PIKE MO-
733 AM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LINCOLN COUNTY IN
EAST CENTRAL MISSOURI...AND EAST CENTRAL PIKE COUNTY IN NORTHEAST
MISSOURI IS CANCELLED...

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

LAT...LON 3946 9063 3926 9061 3924 9072 3926 9073
      3928 9077 3934 9083
TIME...MOT...LOC 1333Z 246DEG 47KT 3931 9069

$$

ILC013-149-021400-
/O.CON.KLSX.SV.W.0033.000000T0000Z-120302T1400Z/
PIKE IL-CALHOUN IL-
733 AM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CALHOUN COUNTY
IN SOUTHWEST ILLINOIS...AND SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL
ILLINOIS UNTIL 800 AM CST...

AT 729 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR BELLEVIEW...OR 8 MILES NORTH OF ELSBERRY...
MOVING NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  KAMPSVILLE AND BEECREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3946 9063 3926 9061 3924 9072 3926 9073
      3928 9077 3934 9083
TIME...MOT...LOC 1333Z 246DEG 47KT 3931 9069
WIND...HAIL <50MPH 1.00IN

$$

CVKING

796 
WWUS53 KLSX 021337
SVSLSX

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

ILC013-149-021347-
/O.CAN.KLSX.SV.W.0033.000000T0000Z-120302T1400Z/
PIKE IL-CALHOUN IL-
737 AM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR CALHOUN COUNTY IN SOUTHWEST
ILLINOIS...AND SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS IS
CANCELLED...

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.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 AM.

LAT...LON 3946 9063 3926 9061 3924 9072 3926 9073
      3928 9077 3934 9083
TIME...MOT...LOC 1337Z 246DEG 47KT 3933 9063

$$

CVKING

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 5:10 AM CST	Severe Thunderstorm Warning	LSX	Calhoun	39 min
Mar 2, 5:56 AM CST	Severe Thunderstorm Warning	LSX	Calhoun, Jersey, Macoupin, Madison	49 min
Mar 2, 6:36 AM CST	Severe Thunderstorm Warning	LSX	Bond, Fayette, Macoupin, Madison, Montgomery	39 min
Mar 2, 7:14 AM CST	Severe Thunderstorm Warning	LSX	Bond, Fayette, Montgomery	25 min
Mar 2, 9:49 AM CST	Severe Thunderstorm Warning	LSX	Clinton, Madison, Saint Clair	41 min
Mar 2, 10:10 AM CST	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette	50 min
Mar 2, 11:12 AM CST	Severe Thunderstorm Warning	LSX	Fayette, Marion	16 min
Mar 2, 11:29 AM CST	Severe Thunderstorm Warning	LSX	Clinton, Randolph, Washington	31 min
Mar 2, 11:41 AM CST	Severe Thunderstorm Warning	LSX	Marion	49 min
Mar 2, 1:59 PM CST	Wind Advisory	LSX	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more	4 hr
Mar 2, 3:34 AM CST	Severe Thunderstorm Warning	LSX	Callaway, Cole, Moniteau, Osage	41 min
Mar 2, 3:59 AM CST	Severe Thunderstorm Warning	LSX	Cole, Osage	46 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, 5:13 AM CST	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis, Warren	47 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

Nearby

Severe Thunderstorm Warnings in Illinois, 2012 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.