Alert archive / Iowa / Tornado Warnings in 1995

Tornado Warning 27, NWS Des Moines, IA

May 27, 1995Decatur County, Iowa

NWS Des Moines, IA issued this tornado warning at May 27, 1995, 10:56 PM CDT for Decatur County, Iowa. It was in force for 15 min.

The area

The counties it named.

The facts

Issued
May 27, 1995, 10:56 PM CDT (03:56 UTC)
Expired
May 27, 1995, 11:11 PM CDT
In force
15 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Decatur County, IA

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 3.9 hours before the alert went out and 226 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 1995-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1010 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 1995-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 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
1010 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
1189 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDSM 280358
TORDSM
IAC039-053-280430-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1056 PM CDT SAT MAY 27 1995

* TORNADO WARNING FOR
  SOUTHERN CLARKE COUNTY - SOUTH CENTRAL IOWA
  NORTHERN DECATUR COUNTY - SOUTH CENTRAL IOWA

* UNTIL 1130 PM CDT
 
* SOME TOWNS AFFECTED
    WOODBURN
    VAN WERT
    OSCEOLA
    WELDON

* AT 1055 PM RADAR INDICATED A TORNADO 15 MILES NORTHEAST OF LAMONI
  ALONG I80 MOVING NORTH AT 30 MPH.

* THE STORM WILL BE NEAR OSCEOLA BY 1125 PM.

IF YOU ARE NEAR THIS DANGEROUS STORM...TAKE COVER IMMEDIATELY IN THE
LOWEST FLOOR AND INNER MOST ROOM OF A BUILDING.

JOHNSON

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 7:17 PM CDTSevere Thunderstorm WarningDMXCarroll, Sac28 min
May 27, 7:23 PM CDTTornado WarningDMXCarroll, Sac22 min
May 27, 7:41 PM CDTTornado WarningDMXCalhoun, Sac34 min
May 27, 7:57 PM CDTTornado WarningDMXAdair, Union33 min
May 27, 8:03 PM CDTTornado WarningDMXCass32 min
May 27, 8:07 PM CDTTornado WarningDMXCrawford18 min
May 27, 8:13 PM CDTTornado WarningDMXCalhoun, Sac32 min
May 27, 8:18 PM CDTTornado WarningDMXCarroll32 min
May 27, 8:20 PM CDTTornado WarningDMXGreene, Guthrie35 min
May 27, 8:25 PM CDTTornado WarningDMXAdair35 min
May 27, 8:47 PM CDTTornado WarningDMXPocahontas33 min
May 27, 8:49 PM CDTTornado WarningDMXGuthrie36 min
May 27, 8:51 PM CDTTornado WarningDMXCarroll34 min
May 27, 8:59 PM CDTTornado WarningDMXDallas31 min
May 27, 9:02 PM CDTTornado WarningDMXCalhoun, Sac16 min
May 27, 9:05 PM CDTTornado WarningDMXGreene35 min
May 27, 9:11 PM CDTTornado WarningDMXGreene29 min
May 27, 9:20 PM CDTTornado WarningDMXCalhoun, Webster25 min
May 27, 9:32 PM CDTTornado WarningDMXAdams, Union28 min
May 27, 9:44 PM CDTTornado WarningDMXWebster31 min
May 27, 9:59 PM CDTSevere Thunderstorm WarningDMXGuthrie31 min
May 27, 10:11 PM CDTTornado WarningDMXDecatur, Ringgold34 min
May 27, 10:26 PM CDTTornado WarningDMXDallas34 min
May 27, 10:31 PM CDTTornado WarningDMXDecatur29 min
May 27, 10:56 PM CDTTornado WarningDMXClarke34 min
May 27, 11:35 PM CDTTornado WarningDMXBoone35 min
May 28, 1:19 AM CDTFlash Flood WarningDMXGuthrie2 hr

Nearby

Tornado Warnings in Iowa, 1995Every tornado warning in 1995Tornadoes 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.