Alert archive / Missouri / Flash Flood Warnings in 2016
Flash Flood Warning 24, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Aug 2, 2016, 5:34 AM CDT for Knox County, Missouri. It was in force for 6 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
- Aug 2, 2016, 5:34 AM CDT (10:34 UTC)
- Expired
- Aug 2, 2016, 11:30 AM CDT
- In force
- 6 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 10:35 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 |
|---|---|---|---|
| Aug 2, 8:00 AM CDT | HEAVY RAIN 5 | 4 W Novelty, MO | |
| Aug 2, 9:30 AM CDT | HEAVY RAIN 3.15 | 1 Ene Novelty, MO | RAINFALL TOTAL SINCE MIDNIGHT COURTESY OF MISSOURI MESONET. |
| Aug 2, 9:37 AM CDT | HEAVY RAIN 4.5 | Hurdland, MO | RAINFALL TOTAL OF 4-5 INCHES. |
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 00:00Z, 10.6 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
- 460 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 899 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
241 WGUS53 KLSX 021034 FFWLSX MOC103-021630- /O.NEW.KLSX.FF.W.0024.160802T1034Z-160802T1630Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 534 AM CDT TUE AUG 2 2016 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... KNOX COUNTY IN NORTHEASTERN MISSOURI... * UNTIL 1130 AM CDT * AT 533 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. THREE TO FOUR INCHES OF RAIN MAY HAVE FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... EDINA...KNOX CITY...PLEVNA...COLONY...GREENSBURG...HURDLAND... NOVELTY...BARING AND NEWARK. 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 4030 9196 3995 9195 3996 9234 4030 9235 $$ GLASS
1 follow-up statement
776 WGUS73 KLSX 021637 FFSLSX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1137 AM CDT TUE AUG 2 2016 MOC103-021645- /O.EXP.KLSX.FF.W.0024.000000T0000Z-160802T1630Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KNOX MO- 1137 AM CDT TUE AUG 2 2016 ...THE FLASH FLOOD WARNING FOR KNOX COUNTY HAS EXPIRED... THE HEAVY RAIN HAS ENDED WITH GENERALLY LIGHT TO MODERATE RAINFALL LIKELY OVER THE NEXT COUPLE OF HOURS. AN AREAL FLOOD WARNING IS NOW IN EFFECT UNTIL 530 PM TODAY DUE TO THE CONTINUATION OF ROAD CLOSURES ACROSS THE AREA AS LARGER STREAMS AND RIVERS CONTINUE TO RISE. LAT...LON 4030 9196 3995 9195 3996 9234 4030 9235 $$ GOSSELIN
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 2:09 AM CDT | Flash Flood Warning | LSX | Audrain, Callaway, Monroe, Montgomery | 6 hr |
| Aug 2, 2:59 AM CDT | Flash Flood Warning | LSX | Franklin, Gasconade, Osage, Warren | 5 hr |
| Aug 2, 4:02 AM CDT | Flash Flood Warning | LSX | Shelby | 5 hr |
| Aug 2, 4:57 AM CDT | Flash Flood Warning | LSX | Audrain, Boone, Monroe | 5 hr |
| Aug 2, 7:57 AM CDT | Flash Flood Warning | LSX | Franklin, Gasconade, Osage, Warren | 4 hr |
| Aug 2, 8:08 AM CDT | Flash Flood Warning | LSX | Audrain, Callaway, Monroe, Montgomery | 4 hr |
| Aug 2, 8:58 AM CDT | Flash Flood Warning | LSX | Monroe, Shelby | 3 hr |
| Aug 2, 10:00 AM CDT | Flash Flood Warning | LSX | Audrain, Boone, Monroe | 2 hr |
| Aug 2, 11:31 AM CDT | Areal Flood Warning | LSX | Audrain, Boone, Callaway, Franklin, Gasconade, Knox and 5 more | 6 hr |
| Aug 2, 3:05 PM CDT | Flash Flood Watch | LSX | Franklin, Jefferson, Lewis, Lincoln, Marion, Pike and 6 more | 14 hr |
Nearby
Flash Flood Warnings in Missouri, 2016Every flash flood warning in 2016
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.