Alert archive / Illinois / Flash Flood Warnings in 2011
Flash Flood Warning 50, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 15, 2011, 12:07 AM CDT for Adams County, Illinois; Lewis County, Missouri. It was in force for 8 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
- Jun 15, 2011, 12:07 AM CDT (05:07 UTC)
- Expired
- Jun 15, 2011, 8:00 AM CDT
- In force
- 8 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Adams County, IL, Lewis County, MO
The radar
The St Louis radar (KLSX), 175 km from the middle of the area, began a volume at 05:10 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
Davenport, (KDVN), launched 00:00Z, 5.1 hours before the alert went out and 182 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
- 1429 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
177
WGUS53 KLSX 150507
FFWLSX
ILC001-MOC111-151300-
/O.NEW.KLSX.FF.W.0050.110615T0507Z-110615T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1207 AM CDT WED JUN 15 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
LEWIS COUNTY IN NORTHEAST MISSOURI...
NORTHERN ADAMS COUNTY IN WEST CENTRAL ILLINOIS...
* UNTIL 800 AM CDT WEDNESDAY
* AT 1159 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. THE RADAR ESTIMATES THAT BETWEEN 1 AND 2 INCHES OF
RAIN HAS FALLEN SINCE 11 PM CDT FROM EWING TO CANTON TO LIMA AND
ALSO NORTHWEST OF MONTICELLO. THIS IS OVER THE SAME AREAS THAT
RECEIVED HEAVY RAINFALL LAST NIGHT. THUNDERSTORMS CONTINUE TO
DEVELOP OVER NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS WHICH
MAY PRODUCE ANOTHER INCH OR TWO OF RAINFALL THROUGH THE EARLY
MORNING HOURS.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CANTON...EWING...LA BELLE...LA GRANGE...LEWISTOWN...MENDON AND
STEFFENVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST
LOUIS.
&&
LAT...LON 4025 9150 4020 9150 4019 9092 3995 9092
3995 9195 4026 9194
$$
BRITT1 follow-up statement
148
WGUS73 KLSX 150830
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
330 AM CDT WED JUN 15 2011
ILC001-MOC111-151300-
/O.CON.KLSX.FF.W.0050.000000T0000Z-110615T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADAMS IL-LEWIS MO-
330 AM CDT WED JUN 15 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LEWIS AND NORTHERN ADAMS
COUNTIES UNTIL 800 AM CDT...
AT 330 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL WERE FINALLY MOVING EAST OF
THE WARNED AREA. RAINFALL AMOUNTS OF 1 TO 2 INCHES HAVE OCCURRED
TONIGHT ACROSS THE WARNED AREA...WITH EVEN HEAVIER AMOUNTS TO THE
NORTH IN CLARK AND HANCOCK COUNTIES. THIS IS ON TOP OF THE 4 TO 7
INCHES OF RAINFALL THAT OCCURRED LAST NIGHT.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR ALONG LOCAL CREEKS...STREAMS AND RIVERS.
IN LEWIS COUNTY...THE WYACONDA AND NORTH FABIUS RIVERS ARE IN
FLOOD...AND WILL CONTINUE TO RISE...FLOODING LOW LYING AREAS AND
ROADS.
IN NORTHERN ADAMS COUNTY...THE BEAR CREEK IS FLOODING...AND WILL
CONTINUE TO RISE...FLOODING LOW LYING AREAS AND ROADS NEAR THE CREEK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST LOUIS.
&&
LAT...LON 4025 9150 4020 9150 4019 9092 3995 9092
3995 9195 4026 9194
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 3:29 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 46 min |
| Jun 15, 3:45 AM CDT | Areal Flood Advisory | LSX | Calhoun | 3 hr |
| Jun 15, 3:46 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey, Macoupin, Madison | 44 min |
| Jun 15, 4:02 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 43 min |
| Jun 15, 4:15 AM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 48 min |
| Jun 15, 6:56 AM CDT | Areal Flood Warning | LSX | Adams | 12 hr |
| Jun 15, 3:23 AM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 41 min |
| Jun 15, 4:00 AM CDT | Flash Flood Warning | LSX | Lincoln, Montgomery, Warren | 3 hr |
Nearby
Flash Flood Warnings in Illinois, 2011Flash Flood Warnings in Missouri, 2011Every flash flood warning in 2011
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.