Alert archive / Missouri / Flash Flood Warnings in 2018
Flash Flood Warning 44, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Oct 7, 2018, 4:54 PM CDT for Montgomery 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
- Oct 7, 2018, 4:54 PM CDT (21:54 UTC)
- Expired
- Oct 7, 2018, 10:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Montgomery County, MO
The radar
The St Louis radar (KLSX), 72 km from the middle of the area, began a volume at 21:57 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 |
|---|---|---|---|
| Oct 7, 7:15 PM CDT | HEAVY RAIN 3.2 | Montgomery City, MO | TOTAL SO FAR, STILL RAINING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.9 hours before the alert went out and 284 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
- 470 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
676
WGUS53 KLSX 072154
FFWLSX
MOC139-080300-
/O.NEW.KLSX.FF.W.0044.181007T2154Z-181008T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service St Louis MO
454 PM CDT SUN OCT 7 2018
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
Montgomery County in east central Missouri...
* Until 1000 PM CDT.
* At 453 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. 3 to 4 inches of rain have
fallen.
* Some locations that will experience flooding include...
Montgomery City, Wellsville, New Florence, Jonesburg, Bellflower,
Buell, Big Spring, Mineola, High Hill, Middletown, Rhineland,
McKittrick, Danville and Americus.
This includes Interstate 70 in Missouri between exits 170 and 183.
This also includes Graham Cave 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 3915 9163 3914 9126 3885 9126 3884 9142
3871 9142 3871 9149 3868 9155 3870 9165
$$
Carney2 follow-up statements
887
WGUS73 KLSX 080047
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
747 PM CDT SUN OCT 7 2018
MOC139-080300-
/O.CON.KLSX.FF.W.0044.000000T0000Z-181008T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery MO-
747 PM CDT SUN OCT 7 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
MONTGOMERY COUNTY...
At 744 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Three to five inches of rain have
fallen. A spotter in Montgomery City reported 3.2 inches of rain.
The heaviest rain has fallen in a stripe generally along a line from
Americus to New Florence.
Some locations that will experience flooding include...
Montgomery City, Wellsville, New Florence, Jonesburg, Bellflower,
Buell, Big Spring, Mineola, High Hill, Middletown, Rhineland,
McKittrick, Danville and Americus.
This includes Interstate 70 in Missouri between exits 170 and 183.
This also includes Graham Cave State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3915 9163 3914 9126 3885 9126 3884 9142
3871 9142 3871 9149 3868 9155 3870 9165
$$
Carney866
WGUS73 KLSX 080253
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
953 PM CDT SUN OCT 7 2018
MOC139-080303-
/O.EXP.KLSX.FF.W.0044.000000T0000Z-181008T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery MO-
953 PM CDT SUN OCT 7 2018
...THE FLASH FLOOD WARNING FOR MONTGOMERY COUNTY WILL EXPIRE AT 1000
PM CDT...
The heavy rain has ended. Flood waters are receding or have receded.
Flooding is no longer expected to pose an imminent threat. Please
continue to heed any remaining road closures.
LAT...LON 3915 9163 3914 9126 3885 9126 3884 9142
3871 9142 3871 9149 3868 9155 3870 9165
$$
CarneyThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 6, 7:08 PM CDT | Special Weather Statement | LSX | Sainte Genevieve | 52 min |
| Oct 7, 5:33 AM CDT | Dense Fog Advisory | LSX | Boone, Callaway, Cole, Crawford, Franklin, Gasconade and 9 more | 3 hr |
| Oct 7, 2:14 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 46 min |
| Oct 7, 2:24 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery, Warren | 51 min |
| Oct 7, 2:55 PM CDT | Tornado Warning | LSX | Callaway, Cole, Osage | 22 min |
| Oct 7, 2:58 PM CDT | Special Weather Statement | LSX | Saint Charles | 47 min |
| Oct 7, 3:15 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 26 min |
| Oct 7, 3:20 PM CDT | Special Weather Statement | LSX | Franklin | 40 min |
| Oct 7, 3:53 PM CDT | Special Weather Statement | LSX | Saint Charles, Saint Louis | 52 min |
| Oct 7, 4:35 PM CDT | Areal Flood Advisory | LSX | Montgomery | 4 hr |
| Oct 7, 5:38 PM CDT | Flash Flood Warning | LSX | Callaway | 5 hr |
| Oct 7, 5:57 PM CDT | Special Weather Statement | LSX | Osage | 48 min |
| Oct 7, 6:41 PM CDT | Special Weather Statement | LSX | Montgomery | 49 min |
Nearby
Flash Flood Warnings in Missouri, 2018Every flash flood warning in 2018
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.