Alert archive / Missouri / Flash Flood Warnings in 2015
Flash Flood Warning 97, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Dec 29, 2015, 11:00 AM CST for Saint Charles County, Missouri. It was in force for 20 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
- Dec 29, 2015, 11:00 AM CST (17:00 UTC)
- Expired
- Dec 30, 2015, 7:00 AM CST
- In force
- 20 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- Unknown
County Saint Charles County, MO
The radar
The St Louis radar (KLSX), 44 km from the middle of the area, began a volume at 17:05 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, 5.0 hours before the alert went out and 199 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
- 657 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
197
WGUS53 KLSX 291700
FFWLSX
MOC183-300500-
/O.NEW.KLSX.FF.W.0097.151229T1700Z-151230T0500Z/
/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1100 AM CST TUE DEC 29 2015
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
A LEVEE FAILURE IN...
NORTHEASTERN ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 1100 PM CST TUESDAY
* AT 1053 AM CST...ST. CHARLES COUNTY EMERGENCY MANAGEMENT REPORTED
THE MISSISSIPPI RIVER HAS BEGUN TO OVERTOP LEVEES JUST NORTH OF
WEST ALTON. THIS WILL CAUSE INUNDATION OF MUCH OF THE AREA IN AND
NEAR THE CITY OF WEST ALTON. EMERGENCY MANAGERS HAVE REQUESTED
THAT RESIDENTS EVACUATE THE CITY OF WEST ALTON AS SOON AS
POSSIBLE...AND ALL OTHERS SHOULD AVOID THE TRAVEL TO THE AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3881 9012 3883 9014 3883 9016 3882 9019
3886 9026 3889 9030 3889 9032 3893 9032
3892 9031 3892 9026 3885 9011
$$
BRITT1 follow-up statement
066
WGUS53 KLSX 300402
FFWLSX
MOC183-301300-
/O.EXT.KLSX.FF.W.0097.000000T0000Z-151230T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1002 PM CST TUE DEC 29 2015
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
NORTHEASTERN ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 700 AM CST WEDNESDAY
* AT 955 PM CST...THE ST CHARLES COUNTY EMERGENCY MANAGEMENT AGENCY
REQUESTED THAT THE FLASH FLOOD WARNING FOR NORTHEASTERN ST CHARLES
COUNTY...AND THE WEST ALTON AREA...BE EXTENDED. THE MISSISSIPPI
RIVER IS OVERTOPPING LEVEES JUST NORTH OF WEST ALTON.
INUNDATION OF THE AREA IN AND NEAR THE CITY OF WEST ALTON IS
OCCURRING AND WILL CONTINUE TO EXPAND WITHIN THE WARNED AREA.
FLOODING WILL IMPACT THE EASTERN EVACUATION ROUTE. EMERGENCY
MANAGERS URGE ALL RESIDENTS TO EVACUATE THE CITY OF WEST ALTON AS
SOON AS POSSIBLE. EVERYONE ELSE SHOULD AVOID TRAVEL TO THE AREA
UNTIL THE EVACUATION ORDER IS LIFTED.
THIS WARNING ALSO INCLUDES CONFLUENCE STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3881 9012 3883 9014 3883 9016 3882 9019
3886 9026 3889 9030 3889 9032 3893 9032
3892 9031 3892 9026 3885 9011
$$
TRUETT/JPKThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 29, 9:55 AM CST | River Flood Warning | LSX | Lewis | 32 hr |
| Dec 29, 9:55 AM CST | River Flood Warning | LSX | Lewis | 40 hr |
| Dec 29, 12:14 PM CST | Areal Flood Warning | LSX | Callaway, Cole, Crawford, Franklin, Gasconade, Iron and 13 more | 24 hr |
| Dec 29, 12:29 PM CST | Areal Flood Warning | LSX | City of Saint Louis | 24 hr |
Nearby
Flash Flood Warnings in Missouri, 2015Every flash flood warning in 2015
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.