Alert archive / Missouri / Flash Flood Warnings in 2016
Flash Flood Warning 34, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Aug 5, 2016, 7:21 PM CDT for Gasconade County, Missouri. It was in force for 5 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
- Aug 5, 2016, 7:21 PM CDT (00:21 UTC)
- Expired
- Aug 6, 2016, 12:15 AM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Gasconade County, MO
The radar
The St Louis radar (KLSX), 85 km from the middle of the area, began a volume at 00:24 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 5, 8:21 PM CDT | HEAVY RAIN 5 | 7 S Bland, MO | SPOTTER REPORTS 5 INCHES OF RAIN SINCE 600 PM. PETERSON ROAD OFF HWY C IS WASHED OUT. COUNTY ROAD 426 ALSO COVERED WITH WATER. THESE REPORTS ARE ALL SOUTH OF BLAND. |
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, 0.4 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
- 1836 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1185 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
971
WGUS53 KLSX 060021
FFWLSX
MOC073-060515-
/O.NEW.KLSX.FF.W.0034.160806T0021Z-160806T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
721 PM CDT FRI AUG 5 2016
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN GASCONADE COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 1215 AM CDT
* AT 720 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
OWENSVILLE...BLAND AND CANAAN.
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.
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.
&&
LAT...LON 3838 9164 3837 9137 3829 9136 3829 9137
3821 9137 3821 9153 3815 9153 3815 9164
$$
CARNEY1 follow-up statement
408
WGUS73 KLSX 060133
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
833 PM CDT FRI AUG 5 2016
MOC073-060515-
/O.CON.KLSX.FF.W.0034.000000T0000Z-160806T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GASCONADE MO-
833 PM CDT FRI AUG 5 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR
SOUTHERN GASCONADE COUNTY...
AT 828 PM CDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING
SOUTH OF BLAND. 5 INCHES OF RAIN HAS FALLEN IN PARTS OF THE WARNING
AREA. FLASH FLOODING IS ALREADY OCCURRING. TAKE ACTION IMMEDIATELY
TO PROTECT LIFE AND PROPERTY IF FLASH FLOODING IS OBSERVED! PEOPLE
LIVING NEAR SMALL STREAMS AND CREEKS SHOULD WATCH WATER LEVELS
CLOSELY AND MOVE TO HIGHER GROUND IMMEDIATELY IF WATER THREATENS TO
CUT OFF ESCAPE ROUTES!
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
OWENSVILLE...BLAND AND CANAAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.
&&
LAT...LON 3838 9164 3837 9137 3829 9136 3829 9137
3821 9137 3821 9153 3815 9153 3815 9164
$$
CARNEYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 7:25 PM CDT | River Flood Warning | LSX | Lewis | 67 hr |
| Aug 5, 7:53 PM CDT | Areal Flood Advisory | LSX | Crawford | 4 hr |
| Aug 5, 8:53 PM CDT | Flash Flood Warning | LSX | Crawford | 6 hr |
| Aug 5, 11:24 PM CDT | Areal Flood Warning | LSX | Franklin | 12 hr |
| Aug 5, 11:45 PM CDT | Areal Flood Warning | LSX | Osage | 12 hr |
| Aug 6, 12:02 AM CDT | Areal Flood Warning | LSX | Gasconade | 12 hr |
| Aug 6, 2:57 AM CDT | River Flood Warning | LSX | Osage | 24 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.