Alert archive / Missouri / Flash Flood Warnings in 2008
Flash Flood Warning 86, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 29, 2008, 2:51 PM CDT for Knox County, Missouri. It was in force for 4 hr. 3 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
- Jul 29, 2008, 2:51 PM CDT (19:51 UTC)
- Expired
- Jul 29, 2008, 6:45 PM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Knox County, MO
The radar
The St Louis radar (KLSX), 204 km from the middle of the area, began a volume at 19:51 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 29, 3:26 PM CDT | FLASH FLOOD | 1 N Edina, MO | WATER FLOWING OVER HIGHWAY 15. UNCERTAIN AS TO THE DEPTH OF THE WATER. |
| Jul 29, 3:45 PM CDT | FLASH FLOOD | 1 S Edina, MO | WATER WAS FLOWING ACROSS HIGHWAY 15 JUST SOUTH OF EDINA NEAR THE BRIDGE OF THE SOUTH FORK OF THE SOUTH FABIUS RIVER. |
| Jul 29, 6:40 PM CDT | FLOOD | 1 Ssw Colony, MO | STATE HIGHWAY K UNDER WATER AND CLOSED AT LOCATION WHERE IT CROSSES THE MIDDLE FABIUS RIVER. |
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, 7.9 hours before the alert went out and 211 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
- 1205 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 646 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLSX 291951 FFWLSX MOC103-292345- /O.NEW.KLSX.FF.W.0086.080729T1951Z-080729T2345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 251 PM CDT TUE JUL 29 2008 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... KNOX COUNTY IN NORTHEAST MISSOURI * UNTIL 645 PM CDT * AT 247 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED TORRENTIAL RAIN OVER THE WARNED AREA. RADAR ESTIMATED THAT 2 TO 3 INCHES OF RAIN HAS FALLEN OVER THE WESTERN HALF OF KNOX COUNTY SINCE 200 PM...AND AN ADDITIONAL 1 TO 2 INCHES OF RAIN IS LIKELY BY 300 PM. * FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE AFFECTING PLEVNA...KNOX CITY AND COLONY. 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 4030 9196 3996 9197 3997 9235 4029 9234 $$ BROWNING
2 follow-up statements
000 WGUS73 KLSX 292120 FFSLSX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 420 PM CDT TUE JUL 29 2008 MOC103-292345- /O.CON.KLSX.FF.W.0086.000000T0000Z-080729T2345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KNOX MO- 420 PM CDT TUE JUL 29 2008 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR KNOX COUNTY... AT 350 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED WATER OF UNKNOWN DEPTH OVER THE ROAD AT HIGHWAY 15 ONE MILE NORTH OF EDINA. IN ADDITION... WATER WAS ALSO REPORTED OVER HIGHWAY 15 JUST SOUTH OF EDINA. WHILE THE HEAVIEST RAIN HAS MOVED EAST OF THE WARNED AREA...RADAR INDICATES 2 TO 4 INCHES OF RAIN HAVE FALLEN OVER KNOX COUNTY OVER THE PAST TWO HOURS. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO KNOX CITY... EDINA AND COLONY. FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES... DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. LAT...LON 4030 9196 3996 9197 3997 9235 4029 9234 $$ FUCHS
000 WGUS73 KLSX 292346 FFSLSX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 646 PM CDT TUE JUL 29 2008 MOC103-292355- /O.EXP.KLSX.FF.W.0086.000000T0000Z-080729T2345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KNOX MO- 646 PM CDT TUE JUL 29 2008 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR KNOX COUNTY... THE STORMS WHICH PRODUCED THE HEAVY RAINS EARLIER HAVE MOVED OUT OF THE WARNED AREA. MORE RAIN IS EXPECTED THIS EVENING BUT MUCH OF THIS SHOULD BE ON THE LIGHT SIDE. MOTORISTS SHOULD USE CAUTION WHEN APPROACHING AREAS THAT EXPERIENCED HIGH WATER LEVELS...AS THE FAST FLOWING WATER MAY HAVE DAMAGED ROADWAYS AND BRIDGES. LAT...LON 4030 9196 3996 9197 3997 9235 4029 9234 $$ GKS
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 1:53 PM CDT | Heat Advisory | LSX | Jefferson, Madison, Saint Charles, Sainte Genevieve, Saint Francois, Saint Louis and 1 more | 5 hr |
| Jul 29, 2:32 PM CDT | Severe Thunderstorm Warning | LSX | Knox, Shelby | 43 min |
| Jul 29, 3:05 PM CDT | Flash Flood Warning | LSX | Shelby | 4 hr |
| Jul 29, 4:19 PM CDT | Flash Flood Watch | LSX | Audrain, Boone, Callaway, Cole, Gasconade, Knox and 11 more | 19 hr |
| Jul 29, 5:54 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Warren | 51 min |
Nearby
Flash Flood Warnings in Missouri, 2008Every flash flood warning in 2008
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.