Alert archive / Missouri / Flash Flood Warnings in 1995

Flash Flood Warning 2, NWS St. Louis, MO

March 7, 1995Washington County, Missouri

NWS St. Louis, MO issued this flash flood warning at Mar 7, 1995, 4:16 AM CST for Washington County, Missouri. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Mar 7, 1995, 4:16 AM CST (10:16 UTC)
Expired
Mar 7, 1995, 8:15 AM CST
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

County Washington County, MO

The radar

The St Louis radar (KLSX), 84 km from the middle of the area, began a volume at 10:16 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 (KUMN), launched 00:00Z, 10.3 hours before the alert went out and 284 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 00:00Z on 1995-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 151 joules per kilogram.LCLLFCEL10008507005003002001001 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, Springfield, MO at 00:00Z on 1995-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 271 square meters per square second.19395878Sfc1 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
151 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
639 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
271 m²/s²
0-3 km storm-relative helicity
273 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 071020
FFWSTL
MOC221-071415-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
416 AM CST TUE MAR 7 1995
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  815 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSOURI
 
   ...NORTHERN AND CENTRAL WASHINGTON COUNTY
 
SEVERAL PERIODS OF SHOWERS AND THUNDERSTORMS MOVED ACROSS EAST CENTRAL
MISSOURI MONDAY NIGHT...PRODUCING UP TO 5 INCHES OF RAIN IN NORTHERN AND
CENTRAL WASHINGTON COUNTY. RAIN WILL CONTINUE THROUGH 9AM. THIS
ADDITIONAL RAIN WILL BE FALLING OVER SATURATED GROUND...ENHANCING THE
THREAT OF FLASH FLOODING.
 
BE ESPECIALLY CAUTIOUS AT NIGHT )WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

Nearby

Flash Flood Warnings in Missouri, 1995Every 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.