Alert archive / Missouri / Flash Flood Warnings in 2008

Flash Flood Warning 71, NWS St. Louis, MO

July 3, 20084 counties in Missouri

NWS St. Louis, MO issued this flash flood warning at Jul 3, 2008, 3:19 AM CDT for 4 counties in Missouri. It was in force for 5 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: Jul 3, 2008, 3:19 AM CDT (08:19 UTC)
Expired: Jul 3, 2008, 8:15 AM CDT
In force: 5 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Callaway County, MO, Cole County, MO, Moniteau County, MO, Osage County, MO

The radar

The St Louis radar (KLSX), 153 km from the middle of the area, began a volume at 08:20 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
Jul 3, 7:00 AM CDT	HEAVY RAIN 3.3	2 Ne Jefferson City, MO
Jul 3, 7:16 AM CDT	HEAVY RAIN 3.14	7 E Linn, MO	24 HOUR AMOUNT ENDING AT 7 AM CT.

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, 8.3 hours before the alert went out and 214 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1422 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 1556 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 030822
FFWLSX
MOC027-051-135-151-031315-
/O.NEW.KLSX.FF.W.0071.080703T0819Z-080703T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
319 AM CDT THU JUL 3 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN CALLAWAY COUNTY IN CENTRAL MISSOURI
  COLE COUNTY IN CENTRAL MISSOURI
  MONITEAU COUNTY IN CENTRAL MISSOURI
  OSAGE COUNTY IN CENTRAL MISSOURI

* UNTIL 815 AM CDT

* AT 316 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER THE WARNED AREA. RADAR
  ESTIMATES OF CLOSE TO THREE INCHES OF RAIN HAS FALLEN OVER THE 
  WARNED AREA SINCE LATE THIS EVENING.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
  AFFECTING WARDSVILLE...TIPTON...TAOS...ST. MARTINS...
  RUSSELLVILLE...MCGIRK...JEFFERSON CITY...CLARKSBURG...CENTERTOWN
  AND CALIFORNIA.

ADDITIONAL THUNDERSTORMS ARE EXPECTED TO IMPACT THIS AREA OVER THE 
NEXT FEW HOURS BEFORE DAYBREAK. ANOTHER ONE TO TWO INCHES OF RAIN IS 
POSSIBLE. 

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. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO 
RECOGNIZE THE DANGERS OF FLOODING. 

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 TAKES ONLY A FEW INCHES OF 
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

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

LAT...LON 3869 9284 3870 9262 3857 9165 3828 9166
      3828 9219 3833 9220 3833 9241 3842 9241
      3843 9263 3857 9282 3861 9284

$$

TES

2 follow-up statements

000 
WGUS73 KLSX 031117
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
614 AM CDT THU JUL 3 2008

MOC027-051-135-151-031315-
/O.CON.KLSX.FF.W.0071.000000T0000Z-080703T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSAGE MO-COLE MO-MONITEAU MO-CALLAWAY MO-
614 AM CDT THU JUL 3 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
SOUTHWESTERN CALLAWAY...MONITEAU...COLE AND OSAGE COUNTIES...

AT 611 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING MODERATE TO OCCASIONALLY HEAVY RAIN 
OVER PARTS OF THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WARDSVILLE...
TIPTON...TAOS...ST. MARTINS...RUSSELLVILLE...MCGIRK...LINN...
JEFFERSON CITY...HIGH POINT...CLARKSBURG...CENTERTOWN AND CALIFORNIA.

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.

ADDITIONAL RAINFALL AMOUNTS OF ONE HALF TO ONE INCH ARE POSSIBLE IN 
THE WARNED AREA...ESPECIALLY OVER FAR SOUTHERN SECTIONS OF COLE... 
MONITEAU...AND OSAGE COUNTIES. 

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 TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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

LAT...LON 3869 9284 3870 9262 3857 9165 3828 9166
      3828 9219 3833 9220 3833 9241 3842 9241
      3843 9263 3857 9282 3861 9284

$$

TES

000 
WGUS73 KLSX 031306
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
806 AM CDT THU JUL 3 2008

MOC027-051-135-151-031316-
/O.EXP.KLSX.FF.W.0071.000000T0000Z-080703T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSAGE MO-COLE MO-MONITEAU MO-CALLAWAY MO-
806 AM CDT THU JUL 3 2008

...THE FLASH FLOOD WARNING WILL EXPIRE AT 815 AM CDT FOR SOUTHWESTERN
CALLAWAY...MONITEAU...COLE AND OSAGE COUNTIES...

A CHECK WITH AREA LAW ENFORCEMENT INDICATES THAT FLOODING IS NO
LONGER A PROBLEM IN THE AREA.

LAT...LON 3869 9284 3870 9262 3857 9165 3828 9166
      3828 9219 3833 9220 3833 9241 3842 9241
      3843 9263 3857 9282 3861 9284

$$

TES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 7:15 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Jefferson, Saint Louis, Washington	45 min
Jul 2, 8:56 PM CDT	Severe Thunderstorm Warning	LSX	Marion, Pike, Ralls	49 min
Jul 2, 9:55 PM CDT	Flash Flood Watch	LSX	Audrain, Boone, Callaway, Cole, Franklin, Gasconade and 12 more	16 hr
Jul 2, 10:28 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Callaway	47 min
Jul 2, 11:06 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Montgomery, Warren	39 min
Jul 3, 12:03 AM CDT	Areal Flood Advisory	LSX	Audrain, Boone, Callaway, Cole, Moniteau	6 hr
Jul 3, 8:32 AM CDT	River Flood Warning	LSX	Cole	46 hr
Jul 3, 4:16 PM CDT	Severe Thunderstorm Warning	LSX	Reynolds	44 min

Nearby

Flash Flood Warnings in Missouri, 2008 Every flash flood warning in 2008

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.