Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 8, NWS Des Moines, IA

March 26, 1995Cerro Gordo County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Mar 26, 1995, 9:00 PM CST for Cerro Gordo County, Iowa. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Mar 26, 1995, 9:00 PM CST (03:00 UTC)
Expired
Mar 26, 1995, 9:30 PM CST
In force
30 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Cerro Gordo County, IA

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 3.0 hours before the alert went out and 198 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, Minneapolis, MN at 00:00Z on 1995-03-27Temperature 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, Minneapolis, MN at 00:00Z on 1995-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 290 square meters per square second.193958Sfc1 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
806 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
290 m²/s²
0-3 km storm-relative helicity
464 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 270300 RRA
SVRDSM
IAC033-270330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
900 PM CST SUN MAR 26 1995

* SEVERE THUNDERSTORM WARNING FOR
  CERRO GORDO COUNTY - NORTH CENTRAL IOWA

* UNTIL 930 PM CST
 
* SOME TOWNS AFFECTED
    MASON CITY
    ROCKWELL
    PORTLAND

* AT 855 PM CST RADAR INDICATED A SEVERE THUNDERSTORM 20 MILES SOUTH OF
  MASON CITY MOVING NORTH AT 50 MILES AN HOUR.

* THE STORM WILL BE INTO MASON CITY BY 915 PM CST.  STRONG WINDS ARE
EXPECTED WITH THIS STORM.

THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.




FORSTER/FILLBACH

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 26, 3:59 PM CST, 5 hours 1 minute before
IAZALL-230140-

IOWA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
400 PM CST SUN MAR 26 1995

HAZARD...ISOLATED SEVERE THUNDERSTORMS PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH AND LARGE HAIL.

AREA OF CONCERN...THE SOUTHERN THIRD OF IOWA...MAINLY SOUTH OF
INTERSTATE 80 BUT EXCLUDING EXTREME SOUTHWESTERN COUNTIES.  SOME
COMMUNITIES IN THIS AREA INCLUDE CRESTON...OSCEOLA...PARTS OF THE DES
MOINES METRO AREA...OTTUMWA AND BURLINGTON.

TIMING DETAILS...THUNDERSTORMS MAY STILL DEVELOP OVER NORTHERN
MISSOURI AND SOUTHERN IOWA BEFORE 6 PM...BUT CHANCES APPEAR TO BE
DIMINISHING.  ISOLATED STRONG THUNDERSTORMS ARE POSSIBLE OVER SOUTH
CENTRAL IOWA UNTIL 8 PM AND OVER SOUTHEAST SECTIONS UNTIL MIDNIGHT.

METEOROLOGICAL COMMENTS...A STRONG LOW PRESSURE SYSTEM WEST OF OMAHA
WILL MOVE INTO WESTERN IOWA BY MIDNIGHT. WARM AND MOIST AIR
HAS DRAWN INTO SOUTHWESTERN IOWA AHEAD OF THE LOW...BUT DRY AIR FROM
KANSAS AND NEBRASKA HAS BEGUN TO DIMINISH THE MOISTURE SUPPLY.  AS THE
MOISTURE DECREASES...THE INTENSITY AND COVERAGE OF THUNDERSTORMS
SHOULD ALSO DECREASE.  DEVELOPMENT NOW APPEARS MOST LIKELY OVER
SOUTHEAST IOWA.

PRECAUTIONS...EMERGENCY MANAGERS IN THE SOUTHERN THIRD OF IOWA SHOULD
CONTINUE TO KEEP INFORMED OF THE LATEST WEATHER INFORMATION.  SPOTTER
ACTIVATION MAY BE NEEDED UNTIL 9 PM.

THIS WILL BE THE LAST SEVERE WEATHER OUTLOOK TODAY.

JUNGBLUTH
Special weather statement, Mar 26, 4:00 PM CST, 5 hours before
IAZALL-230140-

IOWA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
400 PM CST SUN MAR 26 1995

HAZARD...ISOLATED SEVERE THUNDERSTORMS PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH AND LARGE HAIL.

AREA OF CONCERN...THE SOUTHERN THIRD OF IOWA...MAINLY SOUTH OF
INTERSTATE 80 BUT EXCLUDING EXTREME SOUTHWESTERN COUNTIES.  SOME
COMMUNITIES IN THIS AREA INCLUDE CRESTON...OSCEOLA...PARTS OF THE DES
MOINES METRO AREA...OTTUMWA AND BURLINGTON.

TIMING DETAILS...THUNDERSTORMS MAY STILL DEVELOP OVER NORTHERN
MISSOURI AND SOUTHERN IOWA BEFORE 6 PM...BUT CHANCES APPEAR TO BE
DIMINISHING.  ISOLATED STRONG THUNDERSTORMS ARE POSSIBLE OVER SOUTH
CENTRAL IOWA UNTIL 8 PM AND OVER SOUTHEAST SECTIONS UNTIL MIDNIGHT.

METEOROLOGICAL COMMENTS...A STRONG LOW PRESSURE SYSTEM WEST OF OMAHA
WILL MOVE INTO WESTERN IOWA BY MIDNIGHT. WARM AND MOIST AIR
HAS DRAWN INTO SOUTHWESTERN IOWA AHEAD OF THE LOW...BUT DRY AIR FROM
KANSAS AND NEBRASKA HAS BEGUN TO DIMINISH THE MOISTURE SUPPLY.  AS THE
MOISTURE DECREASES...THE INTENSITY AND COVERAGE OF THUNDERSTORMS
SHOULD ALSO DECREASE.  DEVELOPMENT NOW APPEARS MOST LIKELY OVER
SOUTHEAST IOWA.

PRECAUTIONS...EMERGENCY MANAGERS IN THE SOUTHERN THIRD OF IOWA SHOULD
CONTINUE TO KEEP INFORMED OF THE LATEST WEATHER INFORMATION.  SPOTTER
ACTIVATION MAY BE NEEDED UNTIL 9 PM.

THIS WILL BE THE LAST SEVERE WEATHER OUTLOOK TODAY.

JUNGBLUTH
Special weather statement, Mar 26, 8:04 PM CST, 56 minutes before
IAZ060-270310-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
804 PM CST SUN MAR 26 1995

THE THUNDERSTORMS WITH HEAVY RAIN THAT MOVED ACROSS THE DES MOINES
METRO AREA EARLIER HAVE DISSIPATED OR MOVED EAST.  RAINFALL OF UP TO
THREE INCHES.  STREET FLOODING HAS SUBSIDED.

FORSTER

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 26, 6:00 PM CSTSevere Thunderstorm WarningDMXClarke30 min
Mar 26, 6:13 PM CSTSevere Thunderstorm WarningDMXMadison, Warren32 min
Mar 26, 6:34 PM CSTSevere Thunderstorm WarningDMXPolk31 min
Mar 26, 6:43 PM CSTSevere Thunderstorm WarningDMXWarren32 min
Mar 26, 7:02 PM CSTTornado WarningDMXMarion, Warren33 min
Mar 26, 8:11 PM CSTSevere Thunderstorm WarningDMXHancock34 min
Mar 26, 8:32 PM CSTSevere Thunderstorm WarningDMXWinnebago33 min
Mar 26, 9:27 PM CSTSevere Thunderstorm WarningDMXWorth33 min

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.