Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 2, NWS Des Moines, IA

March 26, 1995Clarke County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Mar 26, 1995, 6:00 PM CST for Clarke County, Iowa. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Mar 26, 1995, 6:00 PM CST (00:00 UTC)
Expired
Mar 26, 1995, 6:30 PM CST
In force
30 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Clarke County, IA

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.0 hours before the alert went out and 219 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 00:00Z on 1995-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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, Omaha, NE at 00:00Z on 1995-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.1939587897Sfc1 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
7 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1295 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
148 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 270000 RRA
SVRDSM
IAC039-270030-

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

* SEVERE THUNDERSTORM WARNING FOR
  NORTHEASTERN CLARKE COUNTY - SOUTH CENTRAL IOWA

* UNTIL 630 PM CST
 
* SOME TOWNS AFFECTED
    OPEN FARMLAND

* AT 555 PM CST LOCAL LAW ENFORCEMENT REPORTED A SEVERE THUNDERSTORM IN
  OSCEOLA OR 40 MILES SOUTH OF DES MOINES MOVING NORTHEAST AT 40 MPH.
  THE STORM HAS PRODUCED PENNY SIZE HAIL IN OSCEOLA.

THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.

BELLES

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, 2:20 PM CST, 3 hours 40 minutes before
IAZALL-230140-

IOWA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
220 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.  SOME COMMUNITIES IN THIS AREA INCLUDE SHENANDOAH...
...CRESTON...OSCEOLA...PARTS OF THE DES MOINES METRO AREA...
OTTUMWA AND BURLINGTON.

TIMING DETAILS...THUNDERSTORMS MAY DEVELOP OVER NORTHERN MISSOURI AND
SOUTHWEST IOWA BY 4 PM. SCATTERED THUNDERSTORMS MAY THEN MOVE THROUGH
SOUTH CENTRAL IOWA BETWEEN 4 AND 7 PM AND INTO SOUTHEAST IOWA AFTER 6
PM. THE SEVERE WEATHER THREAT IS MAINLY UNTIL 9 PM.

METEOROLOGICAL COMMENTS...A STRONG LOW PRESSURE SYSTEM NEAR LINCOLN
NEBRASKA WILL MOVE INTO WESTERN IOWA BY MIDNIGHT. WARM AND MOIST AIR
HAS DRAWN INTO SOUTHWESTERN IOWA AHEAD OF THE LOW...PROVIDING
CONDITIONS FOR THUNDERSTORM DEVELOPMENT. GUSTY SOUTHEAST SURFACE WINDS
AND SOUTHWESTERLY JET STREAM WINDS ALOFT PROVIDE THE SECOND INGREDIENT
FOR POTENTIAL SEVERE WEATHER.

OBSERVATIONS AT 2 PM SHOWED TEMPERATURES INTO THE LOW 70S OVER
SOUTHWEST IOWA...BUT DRY AIR IS ALREADY BEGINNING TO MOVE INTO
NORTHWEST MISSOURI AND THE SOUTHWEST CORNER OF IOWA.  THE MOST LIKELY
AREA FOR THUNDERSTORM DEVELOPMENT NOW APPEARS TO BE 75 MILES WEST TO
SOUTHWEST OF DES MOINES BETWEEN 230 AND 4 PM.  THE THREAT OF
THUNDERSTORMS WILL BEGIN TO DIMINISH OVER SOUTHWEST IOWA AS THE DRY
AIR PROGRESSES EASTWARD.

PRECAUTIONS...EMERGENCY MANAGERS IN THE SOUTHERN THIRD OF IOWA SHOULD
KEEP INFORMED OF THE LATEST WEATHER INFORMATION.  SPOTTER ACTIVATION
MAY BE NEEDED...ESPECIALLY OVER THE SOUTHERN TWO TIERS OF COUNTIES
BEFORE 6 PM.

JUNGBLUTH
Special weather statement, Mar 26, 2:21 PM CST, 3 hours 39 minutes before
IAZALL-230140-

IOWA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
220 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.  SOME COMMUNITIES IN THIS AREA INCLUDE SHENANDOAH...
...CRESTON...OSCEOLA...PARTS OF THE DES MOINES METRO AREA...
OTTUMWA AND BURLINGTON.

TIMING DETAILS...THUNDERSTORMS MAY DEVELOP OVER NORTHERN MISSOURI AND
SOUTHWEST IOWA BY 4 PM. SCATTERED THUNDERSTORMS MAY THEN MOVE THROUGH
SOUTH CENTRAL IOWA BETWEEN 4 AND 7 PM AND INTO SOUTHEAST IOWA AFTER 6
PM. THE SEVERE WEATHER THREAT IS MAINLY UNTIL 9 PM.

METEOROLOGICAL COMMENTS...A STRONG LOW PRESSURE SYSTEM NEAR LINCOLN
NEBRASKA WILL MOVE INTO WESTERN IOWA BY MIDNIGHT. WARM AND MOIST AIR
HAS DRAWN INTO SOUTHWESTERN IOWA AHEAD OF THE LOW...PROVIDING
CONDITIONS FOR THUNDERSTORM DEVELOPMENT. GUSTY SOUTHEAST SURFACE WINDS
AND SOUTHWESTERLY JET STREAM WINDS ALOFT PROVIDE THE SECOND INGREDIENT
FOR POTENTIAL SEVERE WEATHER.

OBSERVATIONS AT 2 PM SHOWED TEMPERATURES INTO THE LOW 70S OVER
SOUTHWEST IOWA...BUT DRY AIR IS ALREADY BEGINNING TO MOVE INTO
NORTHWEST MISSOURI AND THE SOUTHWEST CORNER OF IOWA.  THE MOST LIKELY
AREA FOR THUNDERSTORM DEVELOPMENT NOW APPEARS TO BE 75 MILES WEST TO
SOUTHWEST OF DES MOINES BETWEEN 230 AND 4 PM.  THE THREAT OF
THUNDERSTORMS WILL BEGIN TO DIMINISH OVER SOUTHWEST IOWA AS THE DRY
AIR PROGRESSES EASTWARD.

PRECAUTIONS...EMERGENCY MANAGERS IN THE SOUTHERN THIRD OF IOWA SHOULD
KEEP INFORMED OF THE LATEST WEATHER INFORMATION.  SPOTTER ACTIVATION
MAY BE NEEDED...ESPECIALLY OVER THE SOUTHERN TWO TIERS OF COUNTIES
BEFORE 6 PM.

JUNGBLUTH
Special weather statement, Mar 26, 3:59 PM CST, 2 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, 2 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

The office that day

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

IssuedProductOfficeCountiesLasted
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, 9:00 PM CSTSevere Thunderstorm WarningDMXCerro Gordo30 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.