Alert archive / Illinois / Flash Flood Warnings in 2016
Flash Flood Warning 14, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 20, 2016, 7:09 AM CDT for Greene County, Jersey County, Illinois. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 20, 2016, 7:09 AM CDT (12:09 UTC)
- Expired
- Jul 20, 2016, 11:15 AM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Greene County, IL, Jersey County, IL
The radar
The St Louis radar (KLSX), 63 km from the middle of the area, began a volume at 12:10 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.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 0.2 hours before the alert went out and 181 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
- 3 J/kg
- Mixed-layer CIN
- -277 J/kg
- Mixed-layer LCL
- 1429 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
259
WGUS53 KLSX 201209
FFWLSX
ILC061-083-201615-
/O.NEW.KLSX.FF.W.0014.160720T1209Z-160720T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
709 AM CDT WED JUL 20 2016
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL GREENE COUNTY IN SOUTHWESTERN ILLINOIS...
JERSEY COUNTY IN SOUTHWESTERN ILLINOIS...
* UNTIL 1115 AM CDT
* AT 708 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. BETWEEN THREE AND FOUR INCHES
OF RAIN HAS ALREADY FALLEN AND HEAVY RAIN IS CONTINUING TO FALL.
FLASH FLOODING IS LIKELY ACROSS THE WARNING AREA.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
JERSEYVILLE...WHITE HALL...CARROLLTON...BRIGHTON...GREENFIELD...
GRAFTON...ELSAH...KEMPER...OLD KANE...KANE...WRIGHTS...FIELDON...
ROCKBRIDGE...OTTERVILLE...FIDELITY...BELLTOWN...DELHI...WOODY...
BERDAN AND WALKERSVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.
&&
LAT...LON 3942 9015 3900 9015 3900 9027 3893 9028
3904 9055 3943 9054
$$
CARNEY1 follow-up statement
199
WGUS73 KLSX 201610
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1110 AM CDT WED JUL 20 2016
ILC061-083-201620-
/O.EXP.KLSX.FF.W.0014.000000T0000Z-160720T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENE IL-JERSEY IL-
1110 AM CDT WED JUL 20 2016
...THE FLASH FLOOD WARNING FOR CENTRAL GREENE AND JERSEY COUNTIES
WILL EXPIRE AT 1115 AM CDT...
THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.
LAT...LON 3942 9015 3900 9015 3900 9027 3893 9028
3904 9055 3943 9054
$$
GOSSELINThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 7:31 PM CDT | Special Weather Statement | LSX | Calhoun, Jersey, Macoupin | 44 min |
| Jul 19, 7:47 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 43 min |
| Jul 19, 8:26 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Monroe, Saint Clair | 49 min |
| Jul 19, 9:07 PM CDT | Special Weather Statement | LSX | Monroe, Saint Clair | 38 min |
| Jul 20, 5:50 AM CDT | Areal Flood Advisory | LSX | Jersey, Macoupin, Madison, Saint Clair | 4 hr |
| Jul 20, 5:55 AM CDT | Areal Flood Advisory | LSX | Brown, Pike | 4 hr |
| Jul 20, 6:43 AM CDT | Flash Flood Warning | LSX | Madison, Saint Clair | 4 hr |
| Jul 20, 7:39 AM CDT | Flash Flood Warning | LSX | Macoupin, Madison | 4 hr |
| Jul 20, 10:50 AM CDT | Areal Flood Warning | LSX | Greene, Jersey, Macoupin, Madison, Saint Clair | 6 hr |
Nearby
Flash Flood Warnings in Illinois, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.