Alert archive / Iowa / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 43, NWS Des Moines, IA

June 23, 1992Buchanan County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 23, 1992, 4:55 PM CDT for Buchanan County, Iowa. It was in force for 35 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 23, 1992, 4:55 PM CDT (21:55 UTC)
Expired
Jun 23, 1992, 5:30 PM CDT
In force
35 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Buchanan County, IA

What was reported inside it

TimeReportWhereRemark
Jun 23, 4:58 PM CDTHail 0.75Buchanan, IA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Omaha, NE (KOVN), launched 12:00Z, 9.9 hours before the alert went out and 396 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 1992-06-23Temperature 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, Omaha, NE at 12:00Z on 1992-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
2221 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jun 23, 3:41 PM CDT, 1 hour 14 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
331 PM CDT TUE JUN 23 1992

...SEVERE THUNDERSTORM WATCH VALID UNTIL 9 PM FOR PARTS OF EASTERN
   IOWA...

AT 325 PM...A STRONG THUNDERSTORM WITH VERY HEAVY RAIN...GUSTY WINDS AND
HAIL WAS LOCATED 5 MILES WEST OF DECORAH.

ALSO...AN ISOLATED THUNDERSTORM WAS LOCATED JUST NORTH OF THE IOWA/
MISSOURI BORDER 5 MILES SOUTHEAST OF BLOOMFIELD. AN ISOLATED RAIN SHOWER
WAS LOCATED 25 MILES WEST OF MASON CITY OR 5 MILES NORTH OF CORWITH.
FINALLY...SCATTERED LIGHT RAIN SHOWERS CONTINUED ACROSS PARTS OF CENTRAL
AND SOUTHCENTRAL IOWA.

MOVEMENT OF ALL ACTIVITY WAS SOUTHEAST AT 25 MILES AN HOUR.

R A PRENTICE
Special weather statement, Jun 23, 4:18 PM CDT, 37 minutes before
SPECIAL WEATHER STATEMENT AND IOWA WEATHER UPDATE
NATIONAL WEATHER SERVICE DES MOINES IA
415 PM CDT TUE JUN 23 1992

...SEVERE THUNDERSTORM WATCH VALID UNTIL 9 PM FOR PARTS OF EASTERN
   IOWA...

AT 410 PM...ISOLATED STRONG AND INTENSE THUNDERSTORMS WERE LOCATED OVER
NORTH CENTRAL AND NORTHEAST IOWA...35 MILES SOUTHWEST OF MASON CITY AND
45 MILES NORTHEAST OF WATERLOO NEAR WEST UNION.  AT 3 59 PM A TORNADO
WAS REPORTED FROM THE STORM NEAR WEST UNION IN NORTHERN FAYETTE COUNTY.

THE OUTLOOK OVER THE NEXT ONE TO TWO HOURS IS FOR ISOLATED VERY STRONG
AND INTENSE THUNDERSTORMS TO CONTINUE OVER NORTH CENTRAL AND NORTHEAST
IOWA...MOVING INTO CENTRAL AND EAST CENTRAL IOWA.  REMEMBER...INTENSE
THUNNDERSTORMS CAN AND OFTEN DO SPAWN TORNADOS.  PEOPLE IN THE PATH OF
THESE STORMS SHOULD MONITOR WEATHER REPORTS AND BE PREPARED TO MOVE TO
A PLACE OF SAFETY...PREFERABLY A BASEMENT.

MILLER
Special weather statement, Jun 23, 4:48 PM CDT, 7 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
448 PM CDT TUE JUN 23 1992

...SEVERE THUNDERSTORM WATCH VALID UNTIL 9 PM FOR PARTS OF EASTERN
   IOWA...

AT 435 PM...ISOLATED INTENSE THUNDERSTORMS WERE OCCURRING OVER NORTH
CENTRAL AND NORTHEAST IOWA.  THESE STORMS WERE LOCATED 40 MILES
SOUTHWEST OF MASON CITY NEAR CLARION AND 35 MILES NORTHEAST OF
WATERLOO...BETWEEN FAYETTE AND STRAWBERRY POINT.  THESE STORMS MAY
CONTAIN SOME HAIL...DAMAGING WIND...AND DANGEROUS LIGHTNING.  PERSONS
IN THE PATH OF THESE STORMS ARE URGED TO MONITOR WEATHER CONDITIONS AND
SEEK A PLACE OF SAFETY IF THESE STORMS APPROACH.

ALSO...ISOLATED THUNDERSTORMS AND SHOWERS WERE OCCURRING OVER SOUTHEAST
IOWA IN A 10 MILE WIDE LINE FROM 30 MILES WEST OF DES MOINES TO NEAR
BURLINGTON.

THESE STORMS AND SHOWERS WERE MOVING SOUTHEAST AT 35 TO 40 MILES AN
HOUR.

MILLER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 2:51 PM CDTSevere Thunderstorm WarningDMXHoward, Winneshiek54 min
Jun 23, 3:46 PM CDTSevere Thunderstorm WarningDMXFayette59 min
Jun 23, 4:02 PM CDTTornado WarningDMXFayette58 min
Jun 23, 4:29 PM CDTSevere Thunderstorm WarningDMXFayette31 min
Jun 23, 5:17 PM CDTSevere Thunderstorm WarningDMXHardin28 min
Jun 23, 5:40 PM CDTTornado WarningDMXHamilton, Hardin20 min

Nearby

Severe Thunderstorm Warnings in Iowa, 1992Every severe thunderstorm warning in 1992

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.