Alert archive / Missouri / Flash Flood Warnings in 2014
Flash Flood Warning 17, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 22, 2014, 3:26 PM CDT for Saint Charles County, Missouri. It was in force for 4 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
- Jun 22, 2014, 3:26 PM CDT (20:26 UTC)
- Expired
- Jun 22, 2014, 7:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Saint Charles County, MO
The radar
The St Louis radar (KLSX), 12 km from the middle of the area, began a volume at 20:29 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 |
|---|---|---|---|
| Jun 22, 4:51 PM CDT | HEAVY RAIN 2.31 | O'Fallon, MO | NEAR THE INTERSECTION OF MEXICO AND WASHINGTONS CROSSING DR |
| Jun 22, 5:00 PM CDT | HEAVY RAIN 1.62 | O'Fallon, MO |
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, 8.4 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
- 146 J/kg
- Mixed-layer CIN
- -173 J/kg
- Mixed-layer LCL
- 936 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
904 WGUS53 KLSX 222026 FFWLSX MOC183-230030- /O.NEW.KLSX.FF.W.0017.140622T2026Z-140623T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 326 PM CDT SUN JUN 22 2014 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI... * UNTIL 730 PM CDT * AT 325 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RADAR ESTIMATES THAT 2 TO 2.5 INCHES OF RAIN FELL IN THE OFALLON MISSOURI AREA BETWEEN 225 AND 325 PM. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... COTTLEVILLE...DARDENNE PRAIRIE...LAKE ST. LOUIS...O'FALLON...ST. PAUL...ST. PETERS...WELDON SPRING AND HARVESTER. STORM SPOTTERS ARE ALSO REPORTING OVER A FOOT OF WATER ON MEXICO ROAD BEWTEEN BRYAN ROAD AND HIGHWAY K. THIS WARNING ALSO INCLUDES... INTERSTATE 70 IN MISSOURI FROM EXIT 212 TO EXIT 227. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. && LAT...LON 3887 9052 3870 9054 3869 9081 3886 9081 $$ TRUETT
1 follow-up statement
313 WGUS73 KLSX 230018 FFSLSX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 718 PM CDT SUN JUN 22 2014 MOC183-230028- /O.CAN.KLSX.FF.W.0017.000000T0000Z-140623T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ ST. CHARLES MO- 718 PM CDT SUN JUN 22 2014 ...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR CENTRAL ST. CHARLES COUNTY IS CANCELLED... EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA...AND A CHECK WITH THE OFALLON POLICE DEPARTMENT INDICATES NO FLOODING PROBLEMS IN THE AREA THAT EXPERIENCED THE HEAVIEST RAIN. HOWEVER...THIS AFTERNOONS DOWNPOURS..IN EXCESS OF 2 INCHES IN SOME LOCATIONS...WILL BE CAUSING RISES IN WATER LEVELS ALONG DARDENNE CREEK AND WELL AS PERUQUE CREEK. PEOPLE NEAR THESE STREAMS SHOULD KEEP AN EYE ON WATER LEVELS THROUGHOUT THE EVENING. LAT...LON 3887 9052 3870 9054 3869 9081 3886 9081 $$ TRUETT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 7:05 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 40 min |
| Jun 21, 7:28 PM CDT | Areal Flood Advisory | LSX | Lincoln, Saint Charles, Warren | 4 hr |
| Jun 21, 7:29 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 12 min |
| Jun 21, 7:33 PM CDT | Flash Flood Warning | LSX | Saint Louis, City of Saint Louis | 6 hr |
| Jun 21, 7:36 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 39 min |
| Jun 21, 8:02 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Washington | 28 min |
| Jun 21, 8:21 PM CDT | Flash Flood Warning | LSX | Crawford, Franklin, Washington | 5 hr |
| Jun 22, 1:24 AM CDT | Areal Flood Warning | LSX | Crawford, Franklin, Washington | 8 hr |
| Jun 22, 1:56 PM CDT | Areal Flood Advisory | LSX | Saint Francois | 4 hr |
| Jun 22, 2:31 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 32 min |
| Jun 22, 2:41 PM CDT | Areal Flood Advisory | LSX | Madison | 4 hr |
| Jun 22, 3:01 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 30 min |
| Jun 22, 3:22 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 23 min |
| Jun 22, 5:12 PM CDT | Severe Thunderstorm Warning | LSX | Lewis, Marion | 37 min |
| Jun 22, 5:32 PM CDT | Areal Flood Advisory | LSX | Lewis | 6 hr |
Nearby
Flash Flood Warnings in Missouri, 2014Every flash flood warning in 2014
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.