Alert archive / Missouri / Flash Flood Warnings in 2005

Flash Flood Warning 12, NWS St. Louis, MO

August 26, 2005Boone County, Missouri

NWS St. Louis, MO issued this flash flood warning at Aug 26, 2005, 9:07 AM CDT for Boone County, Missouri. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 26, 2005, 9:07 AM CDT (14:07 UTC)
Expired
Aug 26, 2005, 1:00 PM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Counties, with a storm outline in the text

County Boone County, MO

The radar

The St Louis radar (KLSX), 147 km from the middle of the area, began a volume at 14:11 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 2.1 hours before the alert went out and 259 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, Springfield, MO at 12:00Z on 2005-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1363 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, Springfield, MO at 12:00Z on 2005-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 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
1363 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1226 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS53 KLSX 261416
FFWLSX
MOC019-261800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
907 AM CDT FRI AUG 26 2005

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOONE COUNTY IN CENTRAL MISSOURI

* UNTIL 100 PM CDT

* AT 906 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
FLASH FLOODING FROM AN EAST TO WEST LINE OF THUNDERSTORMS THAT ARE
MOVING EAST THROUGH THE AREA.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
  AFFECTING STURGEON...MURRY...MIDWAY...HALLSVILLE...EASLEY...
  COLUMBIA AND ASHLAND.

NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATES THAT UP TO 3 INCHES
OF RAIN HAS FALLEN OVER WESTERN BOONE COUNTY. THE STORMS WILL TAPER
OFF AND RAIN SHOULD END BY 1100AM THIS MORNING. HOWEVER ANOTHER ONE
TO ONE AND A HALF INCHES OF RAIN COULD FALL BRINGING LOCAL RAINFALL
TOTALS TO NEAR 5 INCHES. 

SOME OF THE STREAMS THAT WILL BE IMPACTED BY HEAVY RUNOFF THIS 
MORNING AND INTO THE AFTERNOON INCLUDE...MILL CREEK...PERCHE 
CREEK...CALLAHAN CREEK...AND THE HOMINY BRANCH IN THE CITY OF 
COLUMBIA.  

LOW AREAS AND KNOWN STREETS AND HIGHWAYS THAT HOLD WATER WILL BE 
VULNERABLE THIS MORNING.  DO NOT DRIVE THROUGH THESE AREAS

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 3872 9240 3865 9220 3924 9214 3926 9242
      3901 9256

$$

PEDIGO
3 follow-up statements
000 
WGUS73 KLSX 261444
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
938 AM CDT FRI AUG 26 2005

MOC019-261800-
BOONE MO-
938 AM CDT FRI AUG 26 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 100 PM CDT FOR BOONE
COUNTY...

AT 935 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED 
THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE WARNED AREA.

FLOODING REPORTS ARE BEGINNING TO FILTER IN. IN COLUMBIA RICHLAND
AVENUE IS FLOODED AND SO IS PROCTOR AVENUE IN NORTHWEST PORTIONS
OF THE CITY.  WATER IS NEARLY ONE FOOT DEEP IN CREASY SPRINGS AND
BROWN SCHOOL ROADS...AND COW BRANCH CREEK IN NORTHWEST COLUMBIA
IS OVER THE ROAD.  IN MURRY...7 MILES NORTHWEST OF COLUMBIA...
HIGHWAY Z IS CLOSED DUE TO FLOODING.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
STURGEON...MURRY...MIDWAY COLUMBIA AND HALLSVILLE.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST
LOUIS.

LAT...LON 3872 9240 3865 9220 3924 9214 3926 9242
      3901 9256

$$

PEDIGO/RP
000 
WGUS73 KLSX 261651
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1143 AM CDT FRI AUG 26 2005

MOC019-261800-
BOONE MO-
1143 AM CDT FRI AUG 26 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 100 PM CDT FOR BOONE
COUNTY...

AT 1136 AM CDT...THE THUNDERSTORMS WHICH PRODUCED FLOODING RAINFALL
HAVE MOVED TO THE EAST OF THE AREA. NATIONAL WEATHER SERVICE
DOPPLER RADAR ESTIMATES SHOW RAINFALL AMOUNTS OF 2 TO 3 INCHES 
ACROSS THE COUNTY WITH LOCAL AMOUNTS REACHING 4 TO 5 INCHES NEAR
INTERSTATE 70 AT THE MISSOURI RIVER WEST OF COLUMBIA. 

THOUGH SIGNIFICANT RAINS HAVE ENDED THE RUNOFF FROM THIS MORNINGS 
HEAVY RAINS WILL CONTINUE TO CAUSE LOCAL PROBLEMS FOR A WHILE 
LONGER. FOR THIS REASON WE WILL KEEP THE WARNING IN EFFECT FOR 
THE FULL TIME...THROUGH 100 PM THIS AFTERNOON.

THERE IS STILL A CHANCE THAT MORE STORMS COULD FORM IN WESTERN
MISSOURI AND MOVE EAST INTO THE AREA LATER THIS AFTERNOON OR 
EVENING.  KEEP ABREAST OF LOCAL WEATHER DEVELOPMENTS THROUGH THE
AFTERNOON AND EVENING HOURS.

AT LEAST AS DOZEN ROADS IN AND AROUND COLUMBIA HAVE BEEN CLOSED 
THIS MORNING. THESE SHOULD OPEN UP SHORTLY BUT DO NOT DRIVE 
AROUND BARRICADES JUST BECAUSE THE SUN IS SHINING.  THESE
LOCATIONS CAN STILL BE DANGEROUS

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.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST
LOUIS.

LAT...LON 3872 9240 3865 9220 3924 9214 3926 9242
      3901 9256

$$
PEDIGO
000 
WGUS73 KLSX 261756
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1253 PM CDT FRI AUG 26 2005

MOC019-261803-
BOONE MO-
1253 PM CDT FRI AUG 26 2005

...THE FLASH FLOOD WARNING FOR BOONE COUNTY IS CANCELLED...

RAINFALL TOTALED 2 TO 4 INCHES AND LOCALLY MORE IN WESTERN 
PORTIONS OF THE COUNTY. NUMEROUS ROADS THAT WERE CLOSED THIS 
MORNING WILL BE OPENING TO TRAFFIC AS CONDITIONS ALLOW.

MORE STORMS COULD FORM LATER TODAY. KEEP ABREAST OF LOCAL
CONDITIONS AND LATEST FORECASTS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3872 9240 3865 9220 3924 9214 3926 9242
      3901 9256

$$

PEDIGO

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 26, 9:26 AM CDTFlash Flood WarningLSXMoniteau4 hr
Aug 26, 12:53 PM CDTSevere Thunderstorm WarningLSXJefferson, Sainte Genevieve, Saint Francois67 min
Aug 26, 1:34 PM CDTSevere Thunderstorm WarningLSXIron, Madison56 min

Nearby

Flash Flood Warnings in Missouri, 2005Every flash flood warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.