Alert archive / Missouri / Flash Flood Warnings in 2017
Flash Flood Warning 14, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 5, 2017, 5:57 PM CDT for Lewis County, Marion County, Shelby County, Missouri. It was in force for 6 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
- Jul 5, 2017, 5:57 PM CDT (22:57 UTC)
- Expired
- Jul 6, 2017, 12:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Lewis County, MO, Marion County, MO, Shelby County, MO
The radar
The St Louis radar (KLSX), 157 km from the middle of the area, began a volume at 22:58 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 |
|---|---|---|---|
| Jul 5, 6:03 PM CDT | FLASH FLOOD | Taylor, MO | COUNTY ROAD 306 WITH APPROXIMATELY 6 TO 8 INCHES OF FAST FLOWING WATER OVER IT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.0 hours before the alert went out and 210 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
- 552 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 1126 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
145
WGUS53 KLSX 052257
FFWLSX
MOC111-127-205-060500-
/O.NEW.KLSX.FF.W.0014.170705T2257Z-170706T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service St Louis MO
557 PM CDT WED JUL 5 2017
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
Northwestern Marion County in northeastern Missouri...
Northeastern Shelby County in northeastern Missouri...
Southern Lewis County in northeastern Missouri...
* Until midnight CDT Thursday.
* At 555 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Two to three inches of rain
have fallen in some areas in less than an hour with the heaviest
rainfall around Taylor, Missouri. Flash flooding is expected to
begin shortly.
* Some locations that will experience flooding include...
Maywood, Steffenville and Taylor.
Additional rainfall amounts of 2 to 3 inches of rainfall are
possible in the warned area, especially for areas west of Taylor
towards the Maywood and Steffenville areas.
This also includes Wakonda State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3995 9144 3993 9142 3991 9143 3988 9145
3986 9144 3988 9190 3990 9197 3998 9195
4001 9148
$$
TES1 follow-up statement
048
WGUS73 KLSX 060450
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
1150 PM CDT WED JUL 5 2017
MOC111-127-205-060500-
/O.EXP.KLSX.FF.W.0014.000000T0000Z-170706T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marion MO-Shelby MO-Lewis MO-
1150 PM CDT WED JUL 5 2017
...THE FLASH FLOOD WARNING FOR NORTHWESTERN MARION...NORTHEASTERN
SHELBY AND SOUTHERN LEWIS COUNTIES WILL EXPIRE AT MIDNIGHT CDT...
The heavy rain has ended. Flood waters have receded. Flooding is no
longer expected to pose a threat. Please continue to heed any
remaining road closures.
LAT...LON 3995 9144 3993 9142 3991 9143 3988 9145
3986 9144 3988 9190 3990 9197 3998 9195
4001 9148
$$
TESThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 9:59 AM CDT | Areal Flood Advisory | LSX | Lincoln, Montgomery, Warren | 3 hr |
Nearby
Flash Flood Warnings in Missouri, 2017Every flash flood warning in 2017
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.