Alert archive / Missouri / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 40, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 30, 2016, 5:49 PM CDT for Lincoln County, Saint Charles County, Missouri; Calhoun County, Illinois. It was in force for 41 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
- Apr 30, 2016, 5:49 PM CDT (22:49 UTC)
- Expired
- Apr 30, 2016, 6:30 PM CDT
- In force
- 41 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Calhoun County, IL, Lincoln County, MO, Saint Charles County, MO
The radar
The St Louis radar (KLSX), 25 km from the middle of the area, began a volume at 22:51 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 |
|---|---|---|---|
| Apr 30, 5:51 PM CDT | HAIL 0.75 | Flint Hill, MO | |
| Apr 30, 5:55 PM CDT | HAIL 1 | Wentzville, MO | DIME TO QUARTER SIZED HAIL. |
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 |
|---|---|---|---|
| Apr 30, 3:59 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.8 hours before the alert went out and 220 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 464 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 253 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
091
WUUS53 KLSX 302249
SVRLSX
ILC013-MOC113-183-302330-
/O.NEW.KLSX.SV.W.0040.160430T2249Z-160430T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
549 PM CDT SAT APR 30 2016
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN CALHOUN COUNTY IN SOUTHWESTERN ILLINOIS...
NORTHWESTERN ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
SOUTHEASTERN LINCOLN COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 630 PM CDT
* AT 549 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CHAIN OF
ROCKS...MOVING EAST AT 15 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
TO ROOFS...SIDING...AND TREES.
* LOCATIONS IMPACTED INCLUDE...
O'FALLON...ST. CHARLES...ST. PETERS...WENTZVILLE...LAKE ST. LOUIS...
DARDENNE PRAIRIE...COTTLEVILLE...ST. PAUL...MOSCOW MILLS...JOSEPHVILLE...
FOUNTAIN N' LAKES...CHAIN OF ROCKS...HARVESTER...FLINT HILL...
FORISTELL...OLD MONROE...BRUSSELS...MEPPEN...DEER PLAIN AND BEECHVILLE.
THIS INCLUDES INTERSTATE 70 IN MISSOURI BETWEEN EXITS 208 AND 229.
THIS ALSO INCLUDES FIRST MISSOURI STATE CAPITOL HISTORIC SITE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3901 9058 3899 9057 3896 9053 3895 9052
3896 9051 3896 9050 3877 9048 3875 9050
3872 9094 3895 9094
TIME...MOT...LOC 2249Z 266DEG 15KT 3887 9082
HAIL...1.00IN
WIND...60MPH
$$
TILLY1 follow-up statement
715
WWUS53 KLSX 302325
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
625 PM CDT SAT APR 30 2016
ILC013-MOC113-183-302335-
/O.EXP.KLSX.SV.W.0040.000000T0000Z-160430T2330Z/
CALHOUN IL-ST. CHARLES MO-LINCOLN MO-
625 PM CDT SAT APR 30 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CALHOUN...
NORTHWESTERN ST. CHARLES AND SOUTHEASTERN LINCOLN COUNTIES WILL
EXPIRE AT 630 PM CDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FOR
SOUTHWESTERN ILLINOIS...AND EAST CENTRAL MISSOURI.
LAT...LON 3901 9058 3899 9057 3896 9053 3895 9052
3896 9051 3896 9050 3877 9048 3875 9050
3872 9094 3895 9094
TIME...MOT...LOC 2321Z 266DEG 15KT 3887 9082
$$
TILLYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 10:21 AM CDT | River Flood Warning | LSX | Franklin, Warren | 3 days |
| Apr 30, 10:21 AM CDT | River Flood Warning | LSX | Saint Charles, Saint Louis | 3 days |
| Apr 30, 5:08 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 17 min |
| Apr 30, 6:37 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 38 min |
| Apr 30, 6:38 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 52 min |
| Apr 30, 6:41 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 49 min |
| Apr 30, 6:48 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Lincoln, Saint Charles, Saint Louis, Warren | 42 min |
| Apr 30, 4:53 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 52 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2016Severe Thunderstorm Warnings in Illinois, 2016Every severe thunderstorm warning in 2016
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.