Alert archive / Missouri / Flash Flood Warnings in 2015
Flash Flood Warning 74, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 27, 2015, 6:11 PM CDT for Marion County, Monroe County, Ralls 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 27, 2015, 6:11 PM CDT (23:11 UTC)
- Expired
- Jul 28, 2015, 12:15 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Marion County, MO, Monroe County, MO, Ralls County, MO
The radar
The St Louis radar (KLSX), 133 km from the middle of the area, began a volume at 23:14 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 27, 6:45 PM CDT | FLASH FLOOD | Hannibal, MO | WATER GETTING INTO VEHICLES IN THE DOWNTWON AREA |
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, 11.2 hours before the alert went out and 231 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
- 10 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 839 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
804
WGUS53 KLSX 272311
FFWLSX
MOC127-137-173-280515-
/O.NEW.KLSX.FF.W.0074.150727T2311Z-150728T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
611 PM CDT MON JUL 27 2015
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
RALLS COUNTY IN NORTHEASTERN MISSOURI...
NORTHEASTERN MONROE COUNTY IN NORTHEASTERN MISSOURI...
MARION COUNTY IN NORTHEASTERN MISSOURI...
* UNTIL 1215 AM CDT TUESDAY
* AT 610 PM CDT...TRAINED WEATHER SPOTTERS REPORTED THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS PORTIONS OF THE WARNED AREA. FLASH
FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
HANNIBAL...VANDALIA...PALMYRA...MONROE CITY...WARREN...NEW
LONDON...PERRY...CENTER...RENSSELAER...PHILADELPHIA...SPAULDING...
TAYLOR...STOUTSVILLE...INDIAN CREEK...THE LANDING...ILASCO...
FLORIDA AND SAVERTON.
THIS WARNING ALSO INCLUDES MARK TWAIN LAKE RECREATIONAL AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 3994 9144 3991 9142 3989 9144 3984 9144
3979 9136 3973 9137 3966 9127 3959 9121
3945 9146 3932 9144 3932 9161 3950 9195
3966 9207 3966 9185 3995 9183
$$
TILLY1 follow-up statement
176
WGUS73 KLSX 280515
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1215 AM CDT TUE JUL 28 2015
MOC127-137-173-280524-
/O.EXP.KLSX.FF.W.0074.000000T0000Z-150728T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RALLS MO-MONROE MO-MARION MO-
1215 AM CDT TUE JUL 28 2015
...THE FLASH FLOOD WARNING FOR RALLS...NORTHEASTERN MONROE AND MARION
COUNTIES WILL EXPIRE AT 1215 AM CDT...
FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A
THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD
CLOSURES.
LAT...LON 3994 9144 3991 9142 3989 9144 3984 9144
3979 9136 3973 9137 3966 9127 3959 9121
3945 9146 3932 9144 3932 9161 3950 9195
3966 9207 3966 9185 3995 9183
$$
TILLYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 3:40 PM CDT | Excessive Heat Warning | LSX | Boone, Callaway, Cole, Crawford, Franklin, Gasconade and 15 more | 48 hr |
| Jul 27, 5:13 PM CDT | Flash Flood Warning | LSX | Shelby | 4 hr |
| Jul 27, 5:53 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 20 min |
| Jul 27, 6:04 PM CDT | River Flood Warning | LSX | Lewis | 3 days |
| Jul 27, 6:32 PM CDT | Flash Flood Warning | LSX | Lincoln, Pike | 6 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.