Alert archive / Missouri / Flash Flood Warnings in 2016

Flash Flood Warning 24, NWS Quad Cities, IA

August 29, 2016Scotland County, Missouri; Van Buren County, Iowa

NWS Quad Cities, IA issued this flash flood warning at Aug 29, 2016, 6:43 PM CDT for Scotland County, Missouri; Van Buren County, Iowa. It was in force for 6 hr. 2 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 29, 2016, 6:43 PM CDT (23:43 UTC)
Expired
Aug 30, 2016, 12:45 AM CDT
In force
6 hr
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Flood severity
None

Counties Van Buren County, IA, Scotland County, MO

The radar

The Quad Cities radar (KDVN), 165 km from the middle of the area, began a volume at 23:44 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

TimeReportWhereRemark
Aug 29, 8:48 PM CDTHEAVY RAIN 4.73 Ne Milton, IA
Aug 29, 8:50 PM CDTFLASH FLOOD3 Ne Milton, IAALSO REPORTED 4.70 INCHES OF RAIN IN ABOUT AN HOUR. REPORTED THAT THERE WAS PONDING OF WATER ON SECONDARY ROADS AS WELL AS FLOWING WATER AT LOW POINTS IN THE ROAD. THE WATER WAS FLOWING ACROSS THE ROAD FROM DITCHES AND FIELDS. ESTIMATED THAT THE WATER WAS 3 TO

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, 11.7 hours before the alert went out and 171 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.

Skew-T log-pSkew-T log-p diagram, Davenport, at 12:00Z on 2016-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 959 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2016-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
959 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
891 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

309 
WGUS53 KDVN 292343
FFWDVN
IAC177-MOC199-300545-
/O.NEW.KDVN.FF.W.0024.160829T2343Z-160830T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
643 PM CDT MON AUG 29 2016

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  VAN BUREN COUNTY IN SOUTHEASTERN IOWA...
  SCOTLAND COUNTY IN NORTHEASTERN MISSOURI...

* UNTIL 1245 AM CDT TUESDAY

* AT 642 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO AND A HALF INCHES OF
  RAIN HAVE ALREADY FALLEN IN THE PAST HOUR. FLASH FLOODING IS
  EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MEMPHIS...KEOSAUQUA...BIRMINGHAM...MILTON...STOCKPORT...CANTRIL...
  BENTONSPORT/VERNON...LEANDO...DOUDS...CRAWFORD...MOUNT STERLING...
  AZEN...MORRIS PARK...MEMPHIS MEMORIAL AIRPORT...BIBLE GROVE...
  VAN BUREN COUNTY FAIRGROUNDS...LEBANON...UTICA...
  SCOTLAND COUNTY FAIRGROUNDS AND KILBOURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4059 9235 4060 9218 4082 9218 4087 9208
      4090 9172 4077 9172 4030 9235

$$

ERVIN
3 follow-up statements
445 
WGUS73 KDVN 300030
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
730 PM CDT MON AUG 29 2016

IAC177-MOC199-300545-
/O.CON.KDVN.FF.W.0024.000000T0000Z-160830T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAN BUREN IA-SCOTLAND MO-
730 PM CDT MON AUG 29 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
VAN BUREN AND NORTHWESTERN SCOTLAND COUNTIES...

AT 727 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA.  2 TO 4 INCHES OF RAIN HAVE
FALLEN IN THE LAST HOUR AND A HALF. FLASH FLOODING IS EXPECTED TO
BEGIN SHORTLY. THE HEAVIEST RAINS HAVE FALLEN ALONG THE FOX RIVER,
BETWEEN CANTRIL AND MILTON. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MEMPHIS...BIRMINGHAM...MILTON...STOCKPORT...CANTRIL...LEANDO...
DOUDS...CRAWFORD...MOUNT STERLING...MORRIS PARK...
MEMPHIS MEMORIAL AIRPORT...BIBLE GROVE...
 VAN BUREN COUNTY FAIRGROUNDS...LEBANON...UTICA...
 SCOTLAND COUNTY FAIRGROUNDS AND KILBOURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4059 9235 4060 9218 4082 9218 4087 9208
      4090 9172 4077 9172 4030 9235

$$

ERVIN
320 
WGUS73 KDVN 300203
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
903 PM CDT MON AUG 29 2016

MOC199-300211-
/O.CAN.KDVN.FF.W.0024.000000T0000Z-160830T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTLAND MO-
903 PM CDT MON AUG 29 2016

...THE FLASH FLOOD WARNING FOR NORTHERN SCOTLAND COUNTY IS
CANCELLED...

FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO
HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 4082 9218 4087 9208 4090 9172 4073 9198
      4060 9207 4060 9218

$$

IAC177-300545-
/O.CON.KDVN.FF.W.0024.000000T0000Z-160830T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAN BUREN IA-
903 PM CDT MON AUG 29 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
NORTHWESTERN VAN BUREN COUNTY...

AT 850 PM CDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING IN
NEAR MILTON. THE SPOTTER REPORTED 4.7 INCHES OF RAIN HAVE FALLEN.
FLASH FLOODING IS ALREADY OCCURRING...THOUGH IT IS LIKELY BEGINNING
TO IMPROVE AS OF 9 PM. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BIRMINGHAM...MILTON...STOCKPORT...CANTRIL...LEANDO...DOUDS...
MORRIS PARK...KILBOURN...VAN BUREN COUNTY FAIRGROUNDS...
MOUNT ZION AND LEBANON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4082 9218 4087 9208 4090 9172 4073 9198
      4060 9207 4060 9218

$$

ERVIN
428 
WGUS73 KDVN 300353
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
1053 PM CDT MON AUG 29 2016

IAC177-300402-
/O.CAN.KDVN.FF.W.0024.000000T0000Z-160830T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAN BUREN IA-
1053 PM CDT MON AUG 29 2016

...THE FLASH FLOOD WARNING FOR NORTHWESTERN VAN BUREN COUNTY IS
CANCELLED...

FLOOD WATERS HAVE RECEDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES. 

LAT...LON 4082 9218 4087 9208 4090 9172 4073 9198
      4060 9207 4060 9218

$$

ERVIN

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 29, 9:54 AM CDTRiver Flood WatchDVNLouisa5 days
Aug 29, 10:40 AM CDTRiver Flood WarningDVNDes Moines7 days
Aug 29, 10:40 AM CDTRiver Flood WarningDVNDes Moines, Lee6 days
Aug 29, 10:40 AM CDTRiver Flood WarningDVNCedar, Louisa, Muscatine5 days
Aug 29, 1:17 PM CDTSpecial Weather StatementDVNBenton, Buchanan, Delaware, Jones, Linn3 hr
Aug 29, 3:17 PM CDTSpecial Weather StatementDVNClinton, Scott28 min
Aug 29, 3:40 PM CDTSpecial Weather StatementDVNClinton35 min
Aug 29, 5:06 PM CDTSpecial Weather StatementDVNBenton54 min
Aug 29, 5:50 PM CDTSpecial Weather StatementDVNBenton55 min
Aug 29, 6:26 PM CDTSpecial Weather StatementDVNVan Buren49 min

Nearby

Flash Flood Warnings in Missouri, 2016Flash Flood Warnings in Iowa, 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.