Alert archive / Missouri / Flash Flood Warnings in 2016
Flash Flood Warning 23, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Aug 2, 2016, 4:57 AM CDT for Audrain County, Boone County, Monroe County, Missouri. It was in force for 5 hr. 2 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
- Aug 2, 2016, 4:57 AM CDT (09:57 UTC)
- Expired
- Aug 2, 2016, 10:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Audrain County, MO, Boone County, MO, Monroe County, MO
The radar
The St Louis radar (KLSX), 146 km from the middle of the area, began a volume at 10:00 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 |
|---|---|---|---|
| Aug 2, 7:00 AM CDT | FLASH FLOOD | 4 Ese Hallsville, MO | ROUTE Z AT ROUTE D CLOSED DUE TO WATER OVER ROADWAY. |
| Aug 2, 7:00 AM CDT | HEAVY RAIN 3.25 | 2 N Centralia, MO | 24 HOUR TOTAL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 10.0 hours before the alert went out and 288 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
- 2996 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 1155 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
023
WGUS53 KLSX 020957
FFWLSX
MOC007-019-137-021500-
/O.NEW.KLSX.FF.W.0023.160802T0957Z-160802T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
457 AM CDT TUE AUG 2 2016
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN MONROE COUNTY IN NORTHEASTERN MISSOURI...
WESTERN AUDRAIN COUNTY IN CENTRAL MISSOURI...
NORTHERN BOONE COUNTY IN CENTRAL MISSOURI...
* UNTIL 1000 AM CDT
* AT 456 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. TWO TO FOUR INCHES OF RAIN HAVE
FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CENTRALIA...HALLSVILLE...STURGEON...MURRY AND HARRISBURG.
THIS ALSO INCLUDES FINGER LAKES STATE PARK.
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 3924 9243 3925 9231 3960 9230 3924 9211
3906 9209 3906 9213 3904 9214 3901 9214
3913 9248
$$
GLASSThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 2:09 AM CDT | Flash Flood Warning | LSX | Audrain, Callaway, Monroe, Montgomery | 6 hr |
| Aug 2, 2:59 AM CDT | Flash Flood Warning | LSX | Franklin, Gasconade, Osage, Warren | 5 hr |
| Aug 2, 4:02 AM CDT | Flash Flood Warning | LSX | Shelby | 5 hr |
| Aug 2, 5:34 AM CDT | Flash Flood Warning | LSX | Knox | 6 hr |
| Aug 2, 7:57 AM CDT | Flash Flood Warning | LSX | Franklin, Gasconade, Osage, Warren | 4 hr |
| Aug 2, 8:08 AM CDT | Flash Flood Warning | LSX | Audrain, Callaway, Monroe, Montgomery | 4 hr |
| Aug 2, 8:58 AM CDT | Flash Flood Warning | LSX | Monroe, Shelby | 3 hr |
| Aug 2, 10:00 AM CDT | Flash Flood Warning | LSX | Audrain, Boone, Monroe | 2 hr |
| Aug 2, 11:31 AM CDT | Areal Flood Warning | LSX | Audrain, Boone, Callaway, Franklin, Gasconade, Knox and 5 more | 6 hr |
| Aug 2, 3:05 PM CDT | Flash Flood Watch | LSX | Franklin, Jefferson, Lewis, Lincoln, Marion, Pike and 6 more | 14 hr |
Nearby
Flash 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.