Alert archive / Missouri / Flash Flood Warnings in 2012
Flash Flood Warning 1, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood warning at Apr 29, 2012, 11:36 PM CDT for 4 counties in 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
- Apr 29, 2012, 11:36 PM CDT (04:36 UTC)
- Expired
- Apr 30, 2012, 5:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cooper County, MO, Howard County, MO, Pettis County, MO, Saline County, MO
The radar
The Pleasant Hill radar (KEAX), 123 km from the middle of the area, began a volume at 04:37 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 |
|---|---|---|---|
| Apr 29, 11:46 PM CDT | FLASH FLOOD | 4 S Bunceton, MO | MODOT HAS CLOSED PORTIONS OF HWY B AND HWY 87 IN COOPER COUNTY DUE TO WATER RUNNING OVER THE ROAD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 4.6 hours before the alert went out and 233 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
- 913 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 985 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.3
The text
As transmitted, in the capitals the NWS used until 2016.
337
WGUS53 KEAX 300436
FFWEAX
MOC053-089-159-195-301030-
/O.NEW.KEAX.FF.W.0001.120430T0436Z-120430T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1136 PM CDT SUN APR 29 2012
THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A
* FLASH FLOOD WARNING FOR...
COOPER COUNTY IN CENTRAL MISSOURI...
HOWARD COUNTY IN CENTRAL MISSOURI...
PETTIS COUNTY IN CENTRAL MISSOURI...
SOUTHEASTERN SALINE COUNTY IN CENTRAL MISSOURI...
* UNTIL 530 AM CDT
* AT 1132 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. RADAR ESTIMATED AMOUNTS OF TWO TO FOUR INCHES ACROSS
THE WARNED AREA. RAINFALL RATES OF ABOUT AN INCH AN HOUR WILL BE
POSSIBLE THROUGH 2AM.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BOONVILLE...FAYETTE...SEDALIA...BUNCETON...GREEN RIDGE...LA
MONTE...NEW FRANKLIN...OTTERVILLE...PILOT GROVE AND SMITHTON.
THIS WILL IMPACT
I-70 BETWEEN MILE MARKERS 80 AND 114.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.
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 3918 9246 3900 9256 3894 9251 3885 9253
3868 9262 3869 9305 3853 9307 3853 9329
3850 9329 3851 9351 3881 9350 3926 9251
3925 9244
$$
SM2 follow-up statements
034
WGUS73 KEAX 300636
FFSEAX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
136 AM CDT MON APR 30 2012
MOC053-089-159-195-301030-
/O.CON.KEAX.FF.W.0001.000000T0000Z-120430T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COOPER MO-HOWARD MO-PETTIS MO-SALINE MO-
136 AM CDT MON APR 30 2012
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN SALINE...
PETTIS...HOWARD AND COOPER COUNTIES UNTIL 530 AM CDT...
AT 134 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUING ACROSS THE WARNED
AREA. UPWARDS OF 2 TO 4 INCHES OF RAIN HAS FALLEN IN PORTIONS OF
HOWARD...COOPER AND PETTIS COUNTIES. THIS EXCESSIVE RAINFALL HAS
WILL CONTINUE TO PRODUCE FLOODING THROUGH THE MORNING HOURS OF
MONDAY.ADDITIONAL THUNDERSTORM ACTIVITY WILL MOVE THROUGH THE WARNED
AREA BY 4 AM WITH RAINFALL AMOUNTS OF A QUARTER TO HALF INCH
POSSIBLE.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BOONVILLE...FAYETTE...SEDALIA...BUNCETON...GREEN RIDGE...LA MONTE...
NEW FRANKLIN...OTTERVILLE...PILOT GROVE AND SMITHTON.
THIS WILL IMPACT
I-70 BETWEEN MILE MARKERS 80 AND 114.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
IN HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH
ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.
&&
LAT...LON 3918 9246 3900 9256 3894 9251 3885 9253
3868 9262 3869 9305 3853 9307 3853 9329
3850 9329 3851 9351 3881 9350 3926 9251
3925 9244
$$
DUX689
WGUS73 KEAX 301029
FFSEAX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
529 AM CDT MON APR 30 2012
MOC053-089-159-195-301043-
/O.EXP.KEAX.FF.W.0001.000000T0000Z-120430T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COOPER MO-HOWARD MO-PETTIS MO-SALINE MO-
529 AM CDT MON APR 30 2012
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHEASTERN
SALINE...PETTIS...HOWARD AND COOPER COUNTIES WILL BE ALLOWED TO
EXPIRE AT 530 AM CDT...
STREAMS AND CREEKS IN THE WARNED AREA WILL CONTINUE TO RUN AT
ELEVATED LEVELS THROUGHOUT THE DAYTIME HOURS OF MONDAY.
HOWEVER...THE THREAT FROM FLASH FLOODING HAS SUBSIDED. IF FLOODING
HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT
AGENCY.
LAT...LON 3918 9246 3900 9256 3894 9251 3885 9253
3868 9262 3869 9305 3853 9307 3853 9329
3850 9329 3851 9351 3881 9350 3926 9251
3925 9244
$$
DUXThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 10:13 PM CDT | Areal Flood Advisory | EAX | Carroll, Chariton, Linn, Macon, Randolph | 6 hr |
| Apr 29, 10:41 PM CDT | Areal Flood Advisory | EAX | Cooper, Howard, Pettis, Saline | 3 hr |
| Apr 29, 10:50 PM CDT | Special Weather Statement | EAX | Pettis | 25 min |
| Apr 29, 11:53 PM CDT | River Flood Warning | EAX | Howard | 19 hr |
| Apr 30, 12:08 AM CDT | Areal Flood Advisory | EAX | Bates, Henry, Johnson | 6 hr |
| Apr 30, 1:00 AM CDT | River Flood Warning | EAX | Cooper | 52 hr |
| Apr 30, 5:35 AM CDT | Areal Flood Warning | EAX | Cooper, Howard, Pettis, Saline | 10 hr |
| Apr 30, 7:05 AM CDT | River Flood Warning | EAX | Johnson, Pettis | 8 hr |
| Apr 30, 7:23 AM CDT | River Flood Warning | EAX | Cooper | 22 hr |
Nearby
Flash Flood Warnings in Missouri, 2012Every flash flood warning in 2012
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.