Alert archive / Iowa / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 29, NWS Des Moines, IA

May 8, 1988Marion County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at May 8, 1988, 1:25 PM CDT for Marion County, Iowa. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
May 8, 1988, 1:25 PM CDT (18:25 UTC)
Expired
May 8, 1988, 2:00 PM CDT
In force
35 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Marion County, IA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 6.4 hours before the alert went out and 273 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 1988-05-08Temperature 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 1988-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3576 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
106 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, May 8, 7:33 AM CDT, 5 hours 52 minutes before
<PQ<
SPECIAL WEATHER STATEMENT.
NATIONAL WEATHER SERVICE WATERLOO IA
735 AM CST SUN MAY 8 1988

AT 730 AM CDT WEATHER RADAR SHOWED AN AREA OF THUNDERSTORMS ABOUT
30 MILES WIDE FROM AMES TO MARSHALLTOWN TO NEAR WATERLOO.
HEAVIEST STORM WES NEARING WATERLOO AS IT MOVES NORTHEAST AT
45 MILES AN HOUR.

PEA TO MARBLE SIZE HAIL...STRONG SURFACE WINDS...AND HEAVY RAINS CAN
BE EXPECTED WITH THE PASSAGE OFF THESE STORMS.
JOHNSON

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 7:45 PM CDTSevere Thunderstorm WarningDMXCrawford, Sac30 min
May 7, 8:20 PM CDTSevere Thunderstorm WarningDMXCalhoun, Sac25 min
May 7, 8:35 PM CDTSevere Thunderstorm WarningDMXCrawford40 min
May 7, 8:50 PM CDTSevere Thunderstorm WarningDMXCalhoun, Pocahontas40 min
May 7, 9:05 PM CDTSevere Thunderstorm WarningDMXHumboldt35 min
May 7, 9:30 PM CDTSevere Thunderstorm WarningDMXEmmet20 min
May 7, 9:31 PM CDTSevere Thunderstorm WarningDMXCrawford, Sac44 min
May 8, 12:02 AM CDTSevere Thunderstorm WarningDMXCrawford43 min
May 8, 4:38 AM CDTSevere Thunderstorm WarningDMXHumboldt37 min
May 8, 9:42 AM CDTSevere Thunderstorm WarningDMXRinggold, Taylor33 min
May 8, 10:26 AM CDTSevere Thunderstorm WarningDMXRinggold, Taylor34 min
May 8, 11:08 AM CDTSevere Thunderstorm WarningDMXMadison52 min
May 8, 11:20 AM CDTSevere Thunderstorm WarningDMXClarke, Warren70 min
May 8, 11:41 AM CDTSevere Thunderstorm WarningDMXPolk49 min
May 8, 11:44 AM CDTSevere Thunderstorm WarningDMXFranklin61 min
May 8, 12:01 PM CDTTornado WarningDMXJasper29 min
May 8, 12:15 PM CDTTornado WarningDMXJasper45 min
May 8, 12:25 PM CDTSevere Thunderstorm WarningDMXCerro Gordo65 min
May 8, 12:34 PM CDTSevere Thunderstorm WarningDMXMarshall41 min
May 8, 12:43 PM CDTSevere Thunderstorm WarningDMXClarke32 min
May 8, 12:55 PM CDTSevere Thunderstorm WarningDMXTama50 min
May 8, 12:58 PM CDTSevere Thunderstorm WarningDMXLucas, Marion, Warren47 min
May 8, 1:24 PM CDTSevere Thunderstorm WarningDMXBlack Hawk36 min
May 8, 1:33 PM CDTTornado WarningDMXPoweshiek27 min
May 8, 1:40 PM CDTSevere Thunderstorm WarningDMXBremer50 min
May 8, 2:01 PM CDTTornado WarningDMXIowa, Poweshiek29 min
May 8, 2:11 PM CDTTornado WarningDMXKeokuk, Mahaska49 min
May 8, 2:23 PM CDTSevere Thunderstorm WarningDMXBuchanan, Fayette42 min
May 8, 2:35 PM CDTTornado WarningDMXIowa30 min
May 8, 2:35 PM CDTTornado WarningDMXJohnson40 min
May 8, 3:00 PM CDTTornado WarningDMXWashington30 min

Nearby

Severe Thunderstorm Warnings in Iowa, 1988Every severe thunderstorm warning in 1988

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.