Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 1, NWS Des Moines, IA

March 22, 1995Black Hawk County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Mar 22, 1995, 5:46 PM CST for Black Hawk County, Iowa. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Mar 22, 1995, 5:46 PM CST (23:46 UTC)
Expired
Mar 22, 1995, 6:35 PM CST
In force
49 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Black Hawk County, IA

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.8 hours before the alert went out and 177 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, Davenport, at 12:00Z on 1995-03-22Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 1995-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939Sfc1 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
1548 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
8 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 222347 RRA
SVRDSM
IAC013-230035-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
546 PM CST WED MAR 22 1995

* SEVERE THUNDERSTORM WARNING FOR
  BLACK HAWK COUNTY IOWA - NORTHEAST IOWA

* UNTIL 635 PM CST
 
* SOME TOWNS AFFECTED
    WATERLOO
    VORHIES
    HUDSON

* AT 545 PM CST RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES
  SOUTHWEST OF WATERLOO OR NEAR VOORHIES MOVING NORTHEAST AT 30 MPH.

* THE STORM WILL BE NEAR WATERLOO AT 555 PM CST.

THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.
 
BE PREPARED FOR STRONG GUSTY WINDS AND SMALL HAIL WITH THIS STORM.

SMALL

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Mar 22, 5:09 PM CST, 37 minutes before
IAZ004>006-015-016-024-222355-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
509 PM CST WED MAR 22 1995

...SMALL HAIL CAN BE EXPECTED OVER PARTS OF NORTHERN IOWA...

THUNDERSTORMS WITH SMALL HAIL WILL CONTINUE MOVING OVER SEVERAL
COUNTIES ACROSS NORTHERN IOWA THROUGH 6PM.  PEA TO MARBLE SIZED
HAIL WAS REPORTED IN HUMBOLT COUNTY BETWEEN GILMORE CITY AND HUMBOLT
AROUND 5PM.  THE STORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR AND
WILL PASS THROUGH THE TOWNS OF LIVERMORE...RENWICK AND LU VERNE BETWEEN
5 AND 530 PM.

PEOPLE IN NORTHERN IOWA SHOULD BE PREPARED TO SEEK SHELTER IF
THREATENING WEATHER APPROACHES.

SMALL
Special weather statement, Mar 22, 5:11 PM CST, 35 minutes before
IAZ004>006-015-016-024-222355-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
509 PM CST WED MAR 22 1995

...SMALL HAIL CAN BE EXPECTED OVER PARTS OF NORTHERN IOWA...

THUNDERSTORMS WITH SMALL HAIL WILL CONTINUE MOVING OVER SEVERAL
COUNTIES ACROSS NORTHERN IOWA THROUGH 6PM.  PEA TO MARBLE SIZED
HAIL WAS REPORTED IN HUMBOLT COUNTY BETWEEN GILMORE CITY AND HUMBOLT
AROUND 5PM.  THE STORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR AND
WILL PASS THROUGH THE TOWNS OF LIVERMORE...RENWICK AND LU VERNE BETWEEN
5 AND 530 PM.

PEOPLE IN NORTHERN IOWA SHOULD BE PREPARED TO SEEK SHELTER IF
THREATENING WEATHER APPROACHES.

SMALL
Special weather statement, Mar 22, 5:35 PM CST, 11 minutes before
IAZALL-230040-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
535 PM CST WED MAR 22 1995

AT 530 PM CST...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER THE
NORTHEAST HALF OF IOWA. THE SHOWERS AND STORMS WERE NORTHEAST OF A LINE
FROM STORM LAKE TO BURLINGTON. THE STRONGEST STORMS...CAPABLE OF PRODUCING
PEA TO MABLE SIZED HAIL AND WIND GUSTS TO 60 MPH WERE LOCATED NEAR HANCOCK
AND NORTHERN WRIGHT COUNTIES.

THE PRECIPITATION WAS MOVING NORTHEAST AT 35 MPH.

BAILEY
Special weather statement, Mar 22, 5:36 PM CST, 10 minutes before
IAZALL-230040-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
535 PM CST WED MAR 22 1995

AT 530 PM CST...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER THE
NORTHEAST HALF OF IOWA. THE SHOWERS AND STORMS WERE NORTHEAST OF A LINE
FROM STORM LAKE TO BURLINGTON. THE STRONGEST STORMS...CAPABLE OF PRODUCING
PEA TO MABLE SIZED HAIL AND WIND GUSTS TO 60 MPH WERE LOCATED NEAR HANCOCK
AND NORTHERN WRIGHT COUNTIES.

THE PRECIPITATION WAS MOVING NORTHEAST AT 35 MPH.

BAILEY

Nearby

Severe Thunderstorm Warnings in Iowa, 1995Every severe thunderstorm 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.