Alert archive / Missouri / Flash Flood Warnings in 2009
Flash Flood Warning 9, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 8, 2009, 11:01 AM CDT for 5 counties in Missouri. It was in force for 6 hr. 13 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
- May 8, 2009, 11:01 AM CDT (16:01 UTC)
- Expired
- May 8, 2009, 5:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Iron County, MO, Jefferson County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 82 km from the middle of the area, began a volume at 16:04 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 |
|---|---|---|---|
| May 8, 11:15 AM CDT | FLASH FLOOD | Potosi, MO | REPORTS OF 1 TO 2 FEET OVER WATER OVER MILL STREET IN POTOSI. |
| May 8, 11:47 AM CDT | FLASH FLOOD | 2 N Bonne Terre, MO | WATER OVER THE ROAD NORTH OF BONNE TERRE RESULTING IN ROAD CLOSURES BOTH NORTH AND SOUTH ALONG MISSOURI HIGHWAY 67 |
| May 8, 11:59 AM CDT | FLASH FLOOD | 2 Sse Potosi, MO | FLOODING AROUND SPOTTERS HOME...2.62 INCHES OF RAIN SO FAR. |
| May 8, 12:10 PM CDT | FLASH FLOOD | 2 Se Potosi, MO | ONE TO TWO FEET OVER NEW DIGGENS ROAD |
| May 8, 12:15 PM CDT | FLASH FLOOD | Bismarck, MO | TRAIN TRACK UNDER TIES ARE WASHED AWAY IN THE BISMARCK AREA. |
| May 8, 12:15 PM CDT | FLASH FLOOD | Potosi, MO | 4 FEET OF WATER OVER JEFFERSON STREET IN POTOIS MO |
| May 8, 1:00 PM CDT | HEAVY RAIN 3.55 | 2 Ne French Village, MO | GRAVEL WASHED OFF DRIVEWAY ALONG WITH DEBRIS ON NUMEROUS COUNTY ROADS DUE TO FLOODING. RAINFALL REPRESENTS THE TOTAL SINCE 10 AM. |
| May 8, 1:03 PM CDT | HEAVY RAIN 2.73 | Potosi, MO | |
| May 8, 1:09 PM CDT | FLASH FLOOD | Park Hills, MO | WATER RESCUE OCCURRING IN PARK HILLS. TWO HOMES HAD WATER 8 FEET DEEP INTO THE BASEMENT. |
| May 8, 1:10 PM CDT | FLASH FLOOD | 2 Ne Caledonia, MO | BIG RIVER OVERTOPPED ITS BANKS AND FLOODED THE ADJACENT MISSOURI HIGHWAY M. |
| May 8, 1:49 PM CDT | FLASH FLOOD | Park Hills, MO | WATER RESCUE OCCURRING ON PRIME ROSE ROAD SOUTHWEST OF PARK HILL MO. |
| May 8, 3:45 PM CDT | HEAVY RAIN 4 | 3 Sw Festus, MO | STORM TOTAL...OBSERVED STANDING WATER ON SOME ROADWAYS |
| May 8, 3:47 PM CDT | HEAVY RAIN 2.64 | 5 Sw Potosi, MO | STORM TOTAL |
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, 4.0 hours before the alert went out and 297 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
- 185 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 627 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KLSX 081601
FFWLSX
MOC093-099-186-187-221-082200-
/O.NEW.KLSX.FF.W.0009.090508T1601Z-090508T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1101 AM CDT FRI MAY 8 2009
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
IRON COUNTY IN SOUTHEAST MISSOURI
JEFFERSON COUNTY IN EAST CENTRAL MISSOURI
ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI
STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI
WASHINGTON COUNTY IN EAST CENTRAL MISSOURI
* UNTIL 500 PM CDT FRIDAY
* AT 1048 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
RADAR ESTIMATED AMOUNTS RANGING FROM TWO TO FOUR INCHES WITHIN THE
WARNED AREA...WITH ADDITIONAL HEAVY RAINFALL EXPECTED DURING THE
NEXT FEW HOURS.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ANTONIA...BARNHART...BONNE TERRE...CRYSTAL CITY...DE SOTO...
DESLOGE...FARMINGTON...FESTUS...HILLSBORO...IRONTON...PEVELY...
POTOSI...STE. GENEVIEVE...BELLEVIEW...AND DITTMER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.
&&
LAT...LON 3760 9078 3759 9117 3774 9116 3778 9110
3820 9110 3821 9078 3846 9074 3844 9067
3850 9059 3850 9041 3846 9041 3845 9034
3821 9035 3796 8996 3791 8998 3787 8994
3764 9015 3764 9054 3727 9056 3727 9075
$$
FUCHS2 follow-up statements
000
WGUS73 KLSX 081952
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
252 PM CDT FRI MAY 8 2009
MOC093-099-186-187-221-082200-
/O.CON.KLSX.FF.W.0009.000000T0000Z-090508T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
IRON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-WASHINGTON MO-JEFFERSON MO-
252 PM CDT FRI MAY 8 2009
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR JEFFERSON...
WASHINGTON...STE. GENEVIEVE...ST. FRANCOIS AND IRON COUNTIES UNTIL
500 PM CDT...
AT 242 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT FLASH
FLOODING WAS OCCURRING IN ALL OF THE COUNTIES UNDER THIS WARNING.
IN IRON COUNTY...NUMEROUS ROADS REMAIN UNDER WATER AND ARE CLOSED.
IN WASHINGTON COUNTY...MUCH OF THE FLOODING IN POTOSI HAS
ABATED...BUT FLOODING PERSISTS ALONG THE BIG RIVER FROM IRONDALE TO
BELGRADE. IN ST. FRANCOIS COUNTY...TWO WATER RESCUES WERE IN
PROGRESS IN THE PARK HILLS AREA. ALSO IN PARK HILLS...RESIDENTS
WERE EVACUATING FLOODED HOMES. IN STE. GENEVIEVE COUNTY...THE FIRE
DEPARTMENT NEAR BLOOMSDALE WAS USING BOATS TO PERFORM A WATER
RESCUE...THOUGH SEVERAL OF THE PREVIOUSLY CLOSED ROADS WERE NOW
OPEN. IN JEFFERSON COUNTY...UP TO 20 ROADS REMAINED CLOSED DUE TO
FLOODING.
THOUGH THE RAINFALL HAS ENDED...THE FLASH FLOOD WARNING REMAINS IN
EFFECT FOR THESE COUNTIES AS DANGEROUS FLOODING PERSISTS.
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.
IN HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH
ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.
&&
LAT...LON 3760 9078 3759 9117 3774 9116 3778 9110
3820 9110 3821 9078 3846 9074 3844 9067
3850 9059 3850 9041 3846 9041 3845 9034
3821 9035 3796 8996 3791 8998 3787 8994
3764 9015 3764 9054 3727 9056 3727 9075
$$
FUCHS000
WGUS73 KLSX 082157
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
457 PM CDT FRI MAY 8 2009
MOC093-099-186-187-221-082212-
/O.EXP.KLSX.FF.W.0009.000000T0000Z-090508T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
IRON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-WASHINGTON MO-JEFFERSON MO-
457 PM CDT FRI MAY 8 2009
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR JEFFERSON...
WASHINGTON...STE. GENEVIEVE...ST. FRANCOIS AND IRON COUNTIES WILL BE
ALLOWED TO EXPIRE AT 500 PM CDT...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA WILL REMAIN SWOLLEN...BUT FLASH
FLOODING IS NO LONGER EXPECTED.
LAT...LON 3760 9078 3759 9117 3774 9116 3778 9110
3820 9110 3821 9078 3846 9074 3844 9067
3850 9059 3850 9041 3846 9041 3845 9034
3821 9035 3796 8996 3791 8998 3787 8994
3764 9015 3764 9054 3727 9056 3727 9075
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 10:04 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Moniteau | 56 min |
| May 7, 10:26 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 47 min |
| May 7, 10:52 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway, Cole, Moniteau, Osage | 53 min |
| May 7, 11:20 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Osage | 55 min |
| May 7, 11:36 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 54 min |
| May 7, 11:38 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade | 57 min |
| May 8, 12:07 AM CDT | Severe Thunderstorm Warning | LSX | Cole, Moniteau | 38 min |
| May 8, 12:15 AM CDT | Severe Thunderstorm Warning | LSX | Crawford, Gasconade, Washington | 30 min |
| May 8, 12:32 AM CDT | Tornado Warning | LSX | Crawford, Washington | 28 min |
| May 8, 12:58 AM CDT | Tornado Warning | LSX | Crawford, Iron, Saint Francois, Washington | 37 min |
| May 8, 1:29 AM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison, Sainte Genevieve, Saint Francois | 46 min |
| May 8, 7:51 AM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Osage | 39 min |
| May 8, 8:06 AM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin | 39 min |
| May 8, 8:38 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Washington | 37 min |
| May 8, 9:01 AM CDT | Severe Thunderstorm Warning | LSX | Crawford, Iron, Washington | 44 min |
| May 8, 9:12 AM CDT | Flash Flood Warning | LSX | Osage | 5 hr |
| May 8, 9:37 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Francois, Washington | 38 min |
| May 8, 9:53 AM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 52 min |
| May 8, 10:01 AM CDT | Flash Flood Warning | LSX | Crawford, Gasconade | 6 hr |
| May 8, 10:02 AM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Sainte Genevieve, Saint Francois | 43 min |
| May 8, 10:32 AM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Francois, Washington | 43 min |
| May 8, 10:47 AM CDT | Severe Thunderstorm Warning | LSX | Crawford, Iron, Reynolds | 58 min |
| May 8, 11:12 AM CDT | Severe Thunderstorm Warning | LSX | Washington | 33 min |
| May 8, 11:31 AM CDT | Tornado Warning | LSX | Iron, Madison, Saint Francois, Washington | 29 min |
| May 8, 11:45 AM CDT | Tornado Warning | LSX | Sainte Genevieve, Saint Francois | 45 min |
| May 8, 12:05 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Francois | 40 min |
| May 8, 12:18 PM CDT | River Flood Warning | LSX | Osage | 20 hr |
| May 8, 12:18 PM CDT | River Flood Warning | LSX | Cole | 28 hr |
| May 8, 12:27 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 50 min |
| May 8, 12:31 PM CDT | Tornado Warning | LSX | Madison | 15 min |
| May 8, 3:51 PM CDT | Areal Flood Warning | LSX | Crawford, Gasconade | 12 hr |
Nearby
Flash Flood Warnings in Missouri, 2009Every flash flood warning in 2009
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.