Alert archive / Missouri / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 5, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Feb 20, 2016, 7:59 PM CST for Franklin County, Jefferson 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
- Feb 20, 2016, 7:59 PM CST (01:59 UTC)
- Expired
- Feb 20, 2016, 8:45 PM CST
- In force
- 46 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Franklin County, MO, Jefferson County, MO
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 20, 8:04 PM CST | HAIL 0.7 | Lonedell, MO | |
| Feb 20, 8:36 PM CST | HAIL 0.25 | 1 N Mapaville, MO | |
| Feb 20, 8:45 PM CST | HAIL 0.25 | Crystal City, MO | |
| Feb 20, 8:46 PM CST | HAIL 0.88 | 1 N Mapaville, MO | HAIL INCREASED TO NICKEL SIZE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 2.0 hours before the alert went out and 269 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
- 2731 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
599
WUUS53 KLSX 210159
SVRLSX
MOC071-099-210245-
/O.NEW.KLSX.SV.W.0005.160221T0159Z-160221T0245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
759 PM CST SAT FEB 20 2016
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
SOUTHEASTERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 845 PM CST
* AT 759 PM CST...A SEVERE THUNDERSTORM WAS LOCATED OVER LONEDELL...
MOVING EAST AT 35 MPH.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
* LOCATIONS IMPACTED INCLUDE...
FESTUS...DE SOTO...PEVELY...CRYSTAL CITY...HERCULANEUM...
HILLSBORO...CEDAR HILL...BARNHART...OLYMPIAN VILLAGE...CEDAR HILL
LAKES...LONEDELL...HORINE...DITTMER...SCOTSDALE...VICTORIA...
ROBERTSVILLE...GRUBVILLE...MAPAVILLE...HEMATITE AND MORSE MILL.
THIS INCLUDES INTERSTATE 55 IN MISSOURI BETWEEN EXITS 170 AND 180.
THIS WARNING ALSO INCLUDES ...
SANDY CREEK COVERED BRIDGE HISTORIC SITE...GOV. DUNKLIN'S GRAVE
HISTORIC SITE...AND ROBERTSVILLE STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3828 9093 3844 9085 3833 9037 3828 9037
3822 9036 3818 9033 3817 9030 3806 9041
TIME...MOT...LOC 0159Z 291DEG 30KT 3834 9081
HAIL...1.00IN
WIND...<50MPH
$$
CARNEY2 follow-up statements
541
WWUS53 KLSX 210218
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
818 PM CST SAT FEB 20 2016
MOC071-210228-
/O.CAN.KLSX.SV.W.0005.000000T0000Z-160221T0245Z/
FRANKLIN MO-
818 PM CST SAT FEB 20 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FRANKLIN COUNTY
IS CANCELLED...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.
LAT...LON 3822 9078 3841 9074 3833 9037 3828 9037
3822 9036 3818 9033 3817 9030 3806 9041
TIME...MOT...LOC 0218Z 291DEG 30KT 3828 9062
$$
MOC099-210245-
/O.CON.KLSX.SV.W.0005.000000T0000Z-160221T0245Z/
JEFFERSON MO-
818 PM CST SAT FEB 20 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CST
FOR CENTRAL JEFFERSON COUNTY...
AT 818 PM CST...A SEVERE THUNDERSTORM WAS LOCATED NEAR CEDAR HILL
LAKES...MOVING EAST AT 35 MPH.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
LOCATIONS IMPACTED INCLUDE...
FESTUS...DE SOTO...PEVELY...CRYSTAL CITY...HERCULANEUM...HILLSBORO...
CEDAR HILL...BARNHART...OLYMPIAN VILLAGE...CEDAR HILL LAKES...
HORINE...DITTMER...SCOTSDALE...VICTORIA...GRUBVILLE...MAPAVILLE...
HEMATITE...MORSE MILL AND OERMANN.
THIS WARNING ALSO INCLUDES SANDY CREEK COVERED BRIDGE HISTORIC SITE
AND GOV. DUNKLIN'S GRAVE HISTORIC SITE.
THIS INCLUDES INTERSTATE 55 IN MISSOURI BETWEEN EXITS 170 AND 180.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3822 9078 3841 9074 3833 9037 3828 9037
3822 9036 3818 9033 3817 9030 3806 9041
TIME...MOT...LOC 0218Z 291DEG 30KT 3828 9062
HAIL...1.00IN
WIND...<50MPH
$$
CARNEY655
WWUS53 KLSX 210241
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
841 PM CST SAT FEB 20 2016
MOC099-210251-
/O.EXP.KLSX.SV.W.0005.000000T0000Z-160221T0245Z/
JEFFERSON MO-
841 PM CST SAT FEB 20 2016
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL JEFFERSON COUNTY WILL
EXPIRE AT 845 PM CST...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER SMALL HAIL
AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.
LAT...LON 3822 9078 3841 9074 3833 9037 3828 9037
3822 9036 3818 9033 3817 9030 3806 9041
TIME...MOT...LOC 0238Z 291DEG 30KT 3828 9062
$$
CARNEYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 6:18 PM CST | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Washington | 42 min |
| Feb 20, 6:46 PM CST | Severe Thunderstorm Warning | LSX | Jefferson | 44 min |
| Feb 20, 7:18 PM CST | Severe Thunderstorm Warning | LSX | Franklin | 42 min |
| Feb 20, 9:07 PM CST | Areal Flood Advisory | LSX | Franklin, Jefferson, Washington | 4 hr |
| Feb 20, 9:22 PM CST | Flash Flood Warning | LSX | Franklin, Jefferson | 4 hr |
Nearby
Severe Thunderstorm Warnings in Missouri, 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.