Alert archive / Iowa / Flash Flood Warnings in 1995

Flash Flood Warning 1, NWS Des Moines, IA

March 25, 1995Cass County, Iowa

NWS Des Moines, IA issued this flash flood warning at Mar 25, 1995, 1:25 PM CST for Cass County, Iowa. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Mar 25, 1995, 1:25 PM CST (19:25 UTC)
Expired
Mar 25, 1995, 4:25 PM CST
In force
3 hr
Issued by
NWS Des Moines, IA
Area
Whole counties

County Cass County, IA

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 7.4 hours before the alert went out and 120 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, Omaha, NE at 12:00Z on 1995-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 12:00Z on 1995-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1028 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
130 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 
TTAA00 KDSM 251923
FFWDSM
IAC029-252225-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
125 PM CST SAT MAR 25 1995

* FLASH FLOOD WARNING FOR
  SOUTH CENTRAL CASS COUNTY IOWA - SOUTHWEST IOWA

* UNTIL 425 PM CST
 
* SOME STREAMS AFFECTED
    SEVEN MILE CREEK
    UPPER REACHES OF THE WEST NODAWAY RIVER

* CAUSE AND EFFECT
    INTENSE RAINFALL...INDICATED UP TO 5 INCHES ON DOPPLER RADAR...
    HAS OCCURED OVER SOUTH CENTRAL CASS COUNTY...MAINLY SOUTH OF COUNTY
    HIGHWAY G43.

* FORECAST CONDITIONS
    PREPARE FOR RAPID RISES IN THOSE RIVERS AND CREEKS FOREMENTIONED.

LEAVE FLOOD PRONE OR LOW LYING AREAS IMMEDIATELY.  DON/T CROSS A
FLOODED ROADWAY...IT MAY HIDE A WASHOUT.

BELLES

Nearby

Flash Flood Warnings in Iowa, 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.