Alert archive / Missouri / Flash Flood Warnings in 2008

Flash Flood Warning 6, NWS St. Louis, MO

February 5, 2008Clinton County, Randolph County, Washington County, Illinois; 5 counties in Missouri

NWS St. Louis, MO issued this flash flood warning at Feb 5, 2008, 7:24 PM CST for Clinton County, Randolph County, Washington County, Illinois; 5 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
Feb 5, 2008, 7:24 PM CST (01:24 UTC)
Expired
Feb 6, 2008, 1:30 AM CST
In force
6 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Clinton County, IL, Randolph County, IL, Washington County, IL, Iron County, MO, Madison County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 103 km from the middle of the area, began a volume at 01:23 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
Feb 5, 9:25 PM CSTHEAVY RAIN 1.594 Se Belleview, MOSINCE 5 AM THIS MORNING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.4 hours before the alert went out and 298 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, Lincoln, IL at 00:00Z on 2008-02-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2008-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 474 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
449 m above ground
0-6 km bulk shear
92 kt
0-1 km storm-relative helicity
474 m²/s²
0-3 km storm-relative helicity
387 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 060127
FFWLSX
ILC027-157-189-MOC093-123-179-186-187-060730-
/O.NEW.KLSX.FF.W.0006.080206T0124Z-080206T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
724 PM CST TUE FEB 5 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS
  WASHINGTON COUNTY IN SOUTH CENTRAL ILLINOIS
  IRON COUNTY IN SOUTHEAST MISSOURI
  MADISON COUNTY IN SOUTHEAST MISSOURI
  REYNOLDS COUNTY IN SOUTHEAST MISSOURI
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI
  STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI
  RANDOLPH COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 130 AM CST WEDNESDAY

* AT 723 PM CST...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING 
  OVER THE WARNED AREA. RADAR ESTIMATES OF 1 TO 2 INCHES OF RAIN HAS
  FALLEN OVER A LARGE PORTION OF SOUTHEAST MISSOURI AND SOUTHERN 
  ILLINOIS SINCE 4 PM...OVER ALREADY SATURATED GROUND. AN ADDITIONAL
  1 TO 2 INCHES IS POSSIBLE IN THE NEXT 3 HOURS.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
  AFFECTING ELLINGTON...IRONTON...STE. GENEVIEVE...SPARTA...
  FARMINGTON...FREDERICKTOWN...NASHVILLE AND BREESE.

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.

LAT...LON 3706 9097 3759 9132 3759 9117 3774 9115
      3774 9066 3808 9064 3801 9062 3813 9006
      3823 9002 3822 8972 3865 8971 3874 8915
      3821 8915 3822 8959 3781 8969 3788 8993
      3764 9016 3732 9015 3727 9074 3706 9079
TIME...MOT...LOC 0124Z 180DEG 0KT 3836 8945

$$

BYRD

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 5, 6:12 PM CSTSevere Thunderstorm WarningLSXMarion23 min
Feb 5, 9:30 PM CSTFlash Flood WarningLSXMacoupin4 hr
Feb 5, 10:21 PM CSTRiver Flood WarningLSXMorgan, Pike58 days
Feb 5, 10:21 PM CSTRiver Flood WarningLSXPike, Scott112 days
Feb 5, 10:32 PM CSTRiver Flood WarningLSXBrown22 hr
Feb 6, 1:13 PM CSTRiver Flood WarningLSXCalhoun, Jersey56 hr
Feb 5, 6:13 PM CSTFlash Flood WarningLSXJefferson, Washington5 hr
Feb 5, 7:40 PM CSTRiver Flood WarningLSXMarion25 hr
Feb 5, 8:54 PM CSTFlash Flood WarningLSXCrawford4 hr
Feb 6, 3:05 AM CSTRiver Flood WarningLSXOsage11 hr

Nearby

Flash Flood Warnings in Missouri, 2008Flash Flood Warnings in Illinois, 2008Every 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.