Alert archive / Illinois / Flash Flood Warnings in 2016
Flash Flood Warning 1, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Feb 20, 2016, 9:22 PM CST for Monroe County, Saint Clair County, Illinois; Franklin County, Jefferson County, Missouri. It was in force for 4 hr. 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
- Feb 20, 2016, 9:22 PM CST (03:22 UTC)
- Expired
- Feb 21, 2016, 1:15 AM CST
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Monroe County, IL, Saint Clair County, IL, Franklin County, MO, Jefferson County, MO
The radar
The St Louis radar (KLSX), 55 km from the middle of the area, began a volume at 03:25 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 |
|---|---|---|---|
| Feb 20, 10:12 PM CST | FLOOD | Smithton, IL | STREET FLOODING IN SMITHTON. HWY 159 DOWN TO ONE LANE IN SPOTS. |
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, 3.4 hours before the alert went out and 254 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.
180
WGUS53 KLSX 210322
FFWLSX
ILC133-163-MOC071-099-210715-
/O.NEW.KLSX.FF.W.0001.160221T0322Z-160221T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
922 PM CST SAT FEB 20 2016
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
ST. CLAIR COUNTY IN SOUTHWESTERN ILLINOIS...
MONROE COUNTY IN SOUTHWESTERN ILLINOIS...
JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
SOUTHEASTERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 115 AM CST
* AT 921 PM CST...LOCAL LAW ENFORCEMENT REPORTED THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS
BEING REPORTED IN COLUMBIA ILLINOIS AT THIS TIME AND ADDITIONAL
FLASH FLOODING IS LIKELY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BELLEVILLE...O'FALLON...EAST ST. LOUIS...COLLINSVILLE...ARNOLD...
FAIRVIEW HEIGHTS...CAHOKIA...SWANSEA...SHILOH...FESTUS...
WATERLOO...COLUMBIA...MASCOUTAH...PACIFIC...DE SOTO...PEVELY...
CENTREVILLE...CRYSTAL CITY...LEBANON AND FREEBURG.
THIS INCLUDES THE FOLLOWING HIGHWAYS...
INTERSTATE 64 IN ILLINOIS BETWEEN EXITS 9 AND 27.
INTERSTATE 55 IN MISSOURI BETWEEN EXITS 170 AND 191.
THIS WARNING ALSO INCLUDES ...
MASTODON HISTORIC SITE...SANDY CREEK COVERED BRIDGE HISTORIC SITE...
GOV. DUNKLIN'S GRAVE HISTORIC SITE...AND ROBERTSVILLE STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 3822 9003 3813 9006 3811 9017 3813 9025
3807 9037 3804 9060 3807 9061 3820 9078
3821 9088 3847 9080 3845 9069 3846 9034
3839 9034 3861 9018 3866 9018 3865 8971
3822 8970
$$
CARNEY2 follow-up statements
956
WGUS73 KLSX 210455
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1055 PM CST SAT FEB 20 2016
ILC133-163-MOC071-099-210715-
/O.CON.KLSX.FF.W.0001.000000T0000Z-160221T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ST. CLAIR IL-MONROE IL-JEFFERSON MO-FRANKLIN MO-
1055 PM CST SAT FEB 20 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM CST FOR
CENTRAL ST. CLAIR...MONROE...JEFFERSON AND SOUTHEASTERN FRANKLIN
COUNTIES...
AT 1050 PM CST...THE THUNDERSTORMS WHICH PRODUCED THE HEAVY RAIN
EARLIER IN THE EVENING HAVE MOVED EAST OF THE WARNING AREA.
HOWEVER...THE THREAT OF FLOODING WILL CONTINUE ACROSS THE WARNED
AREA FOR THE NEXT SEVERAL HOURS. FLOWING WATER WAS REPORTED OVER
ROADS IN BOTH MONROE AND ST. CLAIR COUNTIES IN ILLINOIS. SIMILAR
AMOUNTS OF HEAVY RAIN WERE REPORTED ACROSS PORTIONS OF JEFFERSON
COUNTY MISSOURI AND SOUTHEASTERN FRANKLIN COUNTY MISSOURI.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BELLEVILLE...ARNOLD...FESTUS...WATERLOO...COLUMBIA...MASCOUTAH...
PACIFIC...DE SOTO...PEVELY...CRYSTAL CITY...FREEBURG...DUPO...
MILLSTADT...RED BUD...HERCULANEUM...HILLSBORO...BYRNES MILL...
ANTONIA...CEDAR HILL AND BARNHART.
THIS INCLUDES INTERSTATE 55 IN MISSOURI BETWEEN EXITS 170 AND 191.
THIS WARNING ALSO INCLUDES ...
MASTODON HISTORIC SITE...SANDY CREEK COVERED BRIDGE HISTORIC SITE...
GOV. DUNKLIN'S GRAVE HISTORIC SITE...AND ROBERTSVILLE STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 3822 9003 3813 9006 3811 9017 3813 9025
3815 9036 3812 9050 3817 9066 3820 9078
3821 9088 3847 9080 3845 9069 3846 9034
3839 9034 3851 9025 3851 8973 3822 8970
$$
CARNEY827
WGUS73 KLSX 210707
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
107 AM CST SUN FEB 21 2016
ILC133-163-MOC071-099-210716-
/O.EXP.KLSX.FF.W.0001.000000T0000Z-160221T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ST. CLAIR IL-MONROE IL-JEFFERSON MO-FRANKLIN MO-
107 AM CST SUN FEB 21 2016
...THE FLASH FLOOD WARNING FOR CENTRAL ST. CLAIR...MONROE...JEFFERSON
AND SOUTHEASTERN FRANKLIN COUNTIES WILL EXPIRE AT 115 AM CST...
THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO
POSE A THREAT. IN ADDITION...WATER HAS RECEDED CAUSING ROADS THAT
WERE CLOSED IN THE SMITHTON AREA OF ST. CLAIR COUNTY TO REOPEN.
LAT...LON 3822 9003 3813 9006 3811 9017 3813 9025
3815 9036 3812 9050 3817 9066 3820 9078
3821 9088 3847 9080 3845 9069 3846 9034
3839 9034 3851 9025 3851 8973 3822 8970
$$
GOSSELINThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 6:46 PM CST | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 44 min |
| Feb 20, 7:30 PM CST | Severe Thunderstorm Warning | LSX | Randolph | 30 min |
| Feb 20, 9:07 PM CST | Areal Flood Advisory | LSX | Monroe | 4 hr |
| Feb 20, 11:11 PM CST | Areal Flood Advisory | LSX | Bond | 4 hr |
| Feb 20, 6:18 PM CST | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Washington | 42 min |
| Feb 20, 7:18 PM CST | Severe Thunderstorm Warning | LSX | Franklin | 42 min |
| Feb 20, 7:59 PM CST | Severe Thunderstorm Warning | LSX | Franklin, Jefferson | 46 min |
Nearby
Flash Flood Warnings in Illinois, 2016Flash Flood Warnings in Missouri, 2016Every flash flood 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.