Alert archive / Missouri / Flash Flood Warnings in 1995

Flash Flood Warning 6, NWS St. Louis, MO

May 17, 1995Audrain County, Montgomery County, Missouri

NWS St. Louis, MO issued this flash flood warning at May 17, 1995, 12:15 AM CDT for Audrain County, Montgomery County, Missouri. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: May 17, 1995, 12:15 AM CDT (05:15 UTC)
Expired: May 17, 1995, 5:15 AM CDT
In force: 5 hr
Issued by: NWS St. Louis, MO
Area: Whole counties

Counties Audrain County, MO, Montgomery County, MO

The radar

The St Louis radar (KLSX), 94 km from the middle of the area, began a volume at 05:13 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

Lincoln, IL (KILX), launched 00:00Z, 5.3 hours before the alert went out and 288 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: 132 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 170518
FFWSTL
MOC019-027-051-135-139-007-171015-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1215 AM CDT WED MAY 17 1995
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 515 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MISSOURI
 
   ...BOONE COUNTY...CALLAWAY COUNTY...COLE COUNTY
   ...MONITEAU COUNTY...MONTGOMERY COUNTY
 
IN EAST CENTRAL MISSOURI
 
   ...AUDRAIN COUNTY
 
AT 1215 AM...RADAR CONTINUED TO SHOW A LINE OF THUNDERSTORMS FROM WEST
OF ST LOUIS BACK INTO THE COLUMBIA AREA. MORE THUNDERSTORMS ARE ALSO
DEVELOPING OVER WESTERN MISSOURI AND ARE EXPECTED TO MOVE INTO THIS
AREA.
 
RADAR ESTIMATES 1 TO 2 INCHES OF RAIN MAY HAVE ALREADY FALLEN ACROSS
THIS AREA. WITH HEAVY RAINS ACROSS THIS AREA EARLIER THIS EVENING...
AND MORE EXPECTED OVERNIGHT...FLASH FLOODING IS A DISTINCT
POSSIBILITY IF NOT IMMINENT.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODING. NEVER DRIVE OR WALK INTO FLOOD WATER.
 
IF YOU LIVE NEAR A SMALL STREAM OR OTHER LOW LYING FLOOD-
PRONE AREA...BE PREPARED TO MOVE TO HIGHER GROUND QUICKLY.
YOUR LIFE MAY DEPEND ON IT.
 
SHEA/TRUETT

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 7:36 PM CDT	Severe Thunderstorm Warning	LSX	Pike	54 min
May 16, 7:47 PM CDT	Severe Thunderstorm Warning	LSX	Callaway	43 min
May 16, 8:11 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery	49 min
May 16, 9:01 PM CDT	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	44 min
May 16, 11:11 PM CDT	Severe Thunderstorm Warning	LSX	Boone	49 min
May 17, 12:15 AM CDT	Flash Flood Warning	LSX	Boone, Callaway, Cole, Moniteau	5 hr
May 17, 1:53 AM CDT	Severe Thunderstorm Warning	LSX	Moniteau	37 min
May 17, 2:22 AM CDT	Flash Flood Warning	LSX	Saint Louis, City of Saint Louis	6 hr
May 17, 2:22 AM CDT	Flash Flood Warning	LSX	Jefferson	6 hr
May 17, 2:22 AM CDT	Flash Flood Warning	LSX	Saint Charles	6 hr
May 17, 2:22 AM CDT	Flash Flood Warning	LSX	Franklin, Lincoln, Warren	6 hr
May 17, 4:20 AM CDT	Severe Thunderstorm Warning	LSX	Washington	40 min
May 17, 4:40 AM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	50 min

Nearby

Flash Flood Warnings in Missouri, 1995 Every flash flood warning in 1995

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.