Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 156, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 6, 2012, 4:37 PM CDT for Pike County, Missouri; Pike County, Illinois. It was in force for 23 min. 2 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
- May 6, 2012, 4:37 PM CDT (21:37 UTC)
- Expired
- May 6, 2012, 5:00 PM CDT
- In force
- 23 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Pike County, IL, Pike County, MO
The radar
The St Louis radar (KLSX), 105 km from the middle of the area, began a volume at 21:39 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 |
|---|---|---|---|
| May 6, 4:45 PM CDT | TSTM WND GST 50 | Ashburn, MO | PEA SIZE HAIL |
| May 6, 4:56 PM CDT | TSTM WND GST 50 | Louisiana, 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 |
|---|---|---|---|
| May 6, 1:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.6 hours before the alert went out and 227 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.
- Mixed-layer CAPE
- 2922 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 576 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
860
WUUS53 KLSX 062137
SVRLSX
ILC149-MOC163-062200-
/O.NEW.KLSX.SV.W.0156.120506T2137Z-120506T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
437 PM CDT SUN MAY 6 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS...
NORTH CENTRAL PIKE COUNTY IN NORTHEAST MISSOURI...
* UNTIL 500 PM CDT
* AT 434 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES EAST OF
FRANKFORD...AND MOVING EAST AT 15 MPH.
HAZARD...HALF DOLLAR SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
* LOCATIONS IMPACTED INCLUDE...
LOUISIANA...PIKE...ASHBURN...NEW CANTON AND ROCKPORT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3966 9100 3940 9096 3942 9126 3956 9127
3960 9121 3960 9118 3962 9123 3963 9123
TIME...MOT...LOC 2137Z 269DEG 15KT 3952 9120
HAIL...1.25IN
WIND...60 MPH
$$
CARNEY2 follow-up statements
435
WWUS53 KLSX 062147
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
447 PM CDT SUN MAY 6 2012
ILC149-MOC163-062200-
/O.CON.KLSX.SV.W.0156.000000T0000Z-120506T2200Z/
PIKE IL-PIKE MO-
447 PM CDT SUN MAY 6 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL PIKE
COUNTY IN WEST CENTRAL ILLINOIS...AND NORTH CENTRAL PIKE COUNTY IN
NORTHEAST MISSOURI UNTIL 500 PM CDT...
AT 443 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES NORTHWEST
OF LOUISIANA...AND MOVING EAST AT 25 MPH.
HAZARD...HALF DOLLAR SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
LOCATIONS IMPACTED INCLUDE...
LOUISIANA...PIKE AND ROCKPORT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
&&
LAT...LON 3966 9100 3940 9096 3942 9126 3956 9127
3960 9121 3960 9118 3962 9123 3963 9123
TIME...MOT...LOC 2147Z 273DEG 23KT 3951 9110
HAIL...1.25IN
WIND...60 MPH
$$
CARNEY968
WWUS53 KLSX 062200
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
500 PM CDT SUN MAY 6 2012
ILC149-MOC163-062211-
/O.EXP.KLSX.SV.W.0156.000000T0000Z-120506T2200Z/
PIKE IL-PIKE MO-
500 PM CDT SUN MAY 6 2012
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL PIKE COUNTY IN WEST
CENTRAL ILLINOIS...AND NORTH CENTRAL PIKE COUNTY IN NORTHEAST
MISSOURI 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 GUSTY WINDS ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.
IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM.
LAT...LON 3966 9100 3940 9096 3942 9126 3956 9127
3960 9121 3960 9118 3962 9123 3963 9123
TIME...MOT...LOC 2147Z 273DEG 23KT 3951 9110
$$
CARNEYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 2:37 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Shelby | 53 min |
| May 6, 3:05 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 40 min |
| May 6, 3:35 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Ralls | 25 min |
| May 6, 4:13 PM CDT | Severe Thunderstorm Warning | LSX | Pike, Ralls | 32 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2012Severe Thunderstorm Warnings in Illinois, 2012Every 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.