Alert archive / Missouri / Flash Flood Warnings in 2012
Flash Flood Warning 8, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at May 7, 2012, 1:03 AM CDT for Clark County, Scotland County, Missouri. It was in force for 6 hr. 4 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 7, 2012, 1:03 AM CDT (06:03 UTC)
- Expired
- May 7, 2012, 6:57 AM CDT
- In force
- 6 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clark County, MO, Scotland County, MO
The radar
The Quad Cities radar (KDVN), 163 km from the middle of the area, began a volume at 06:04 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 7, 6:05 AM CDT | FLASH FLOOD | 3 N Kahoka, MO | GRAVEL ROAD USED AS A BYPASS FOR HIGHWAY N81 CONSTRUCTION WAS WASHED OUT OVERNIGHT. EXACT TIME OF OCCURRENCE UNKNOWN. |
| May 7, 6:40 AM CDT | HEAVY RAIN 2.6 | 5 Sw Memphis, MO | RAINFALL OVERNIGHT. |
| May 7, 7:00 AM CDT | HEAVY RAIN 1.92 | 3 W Kahoka, MO | |
| May 7, 7:00 AM CDT | HEAVY RAIN 1.98 | 1 S Kahoka, MO |
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, 6.1 hours before the alert went out and 168 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
- 2527 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 672 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 149 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 9.8
The text
As transmitted, in the capitals the NWS used until 2016.
291
WGUS53 KDVN 070603
FFWDVN
MOC045-199-071500-
/O.NEW.KDVN.FF.W.0008.120507T0603Z-120507T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
103 AM CDT MON MAY 7 2012
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CLARK COUNTY IN NORTHEAST MISSOURI...
THIS INCLUDES THE CITY OF KAHOKA...
SCOTLAND COUNTY IN NORTHEAST MISSOURI...
THIS INCLUDES THE CITY OF MEMPHIS...
* UNTIL 1000 AM CDT
* AT 1254 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.
1 TO 3 INCHES OF RAIN HAS LIKELY ALREADY FALLEN ON SATURATED
SOILS...AND AN ADDITIONAL 1 INCH OF RAIN IS POSSIBLE THROUGH 2 AM.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
FAIRMONT...NEEPER...GRANGER...SOUTH GORIN...LURAY AND ST.
FRANCISVILLE...AND BIBLE GROVE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING.
PLEASE REPORT ANY FLOODING OR DAMAGE TO YOUR LOCAL LAW ENFORCEMENT
AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.
&&
LAT...LON 4060 9218 4061 9173 4058 9168 4055 9168
4054 9162 4051 9162 4047 9158 4045 9152
4041 9152 4040 9149 4038 9148 4038 9142
4034 9146 4024 9151 4025 9195 4030 9196
4030 9236 4041 9236
$$
ERVIN2 follow-up statements
592
WGUS73 KDVN 070822
FFSDVN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
322 AM CDT MON MAY 7 2012
MOC045-199-071500-
/O.CON.KDVN.FF.W.0008.000000T0000Z-120507T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLARK MO-SCOTLAND MO-
322 AM CDT MON MAY 7 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT FOR
SCOTLAND AND CLARK COUNTIES...
AT 317 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT RAINFALL WAS BECOMING LIGHTER OVER THE AREA. HOWEVER...RADAR
ESTIMATES THAT BETWEEN 2 AND A HALF AND 3 AND A HALF INCHES OF RAIN
HAS FALLEN SINCE ABOUT MIDNIGHT...AND THIS IS IN ADDITION TO RECENT
RAINFALL DURING THE PAST FEW DAYS.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MEMPHIS...
GRANGER...LURAY AND ST. FRANCISVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING.
PLEASE REPORT ANY FLOODING OR DAMAGE TO YOUR LOCAL LAW ENFORCEMENT
AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.
&&
LAT...LON 4060 9218 4061 9173 4058 9168 4055 9168
4054 9162 4051 9162 4047 9158 4045 9152
4041 9152 4040 9149 4038 9148 4038 9142
4034 9146 4024 9151 4025 9195 4030 9196
4030 9236 4041 9236
$$
WOLF469
WGUS73 KDVN 071157
FFSDVN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
657 AM CDT MON MAY 7 2012
MOC045-199-071204-
/O.CAN.KDVN.FF.W.0008.000000T0000Z-120507T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLARK MO-SCOTLAND MO-
657 AM CDT MON MAY 7 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SCOTLAND AND CLARK
COUNTIES...
OTHER THAN SOME LINGERING LIGHT SPRINKLES...RAIN HAS ENDED ACROSS
EXTREME NORTHEAST MISSOURI. THUS THE FLASH FLOOD WARNING FOR
SCOTLAND AND CLARK COUNTIES HAS BEEN CANCELLED.
THE CLARK COUNTY SHERIFF REPORTED A ROAD USED TO BYPASS CONSTRUCTION
ON HIGHWAY N81 ABOUT 3 MILES NORTH OF KAHOKA WAS WASHED OUT
OVERNIGHT. THERE MAY HAVE BEEN OTHER WASHOUTS IN THE AREA...AND
WATER MAY BE SLOW TO RUNOFF IN LOW AREAS...SO EXERCISE CAUTION WHEN
TRAVELING THIS MORNING.
LAT...LON 4060 9218 4061 9173 4058 9168 4055 9168
4054 9162 4051 9162 4047 9158 4045 9152
4041 9152 4040 9149 4038 9148 4038 9142
4034 9146 4024 9151 4025 9195 4030 9196
4030 9236 4041 9236
$$
WOLFThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 11:44 PM CDT | Special Weather Statement | DVN | Clark | 61 min |
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.