Alert archive / Iowa / Tornado Watches in 1998

Tornado Watch 132

March 29, 19985 states

The Storm Prediction Center issued this tornado watch at Mar 29, 1998, 2:00 PM CST for 5 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Mar 29, 1998, 2:00 PM CST (20:00 UTC)
Expired
Mar 29, 1998, 8:00 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 84 counties

Allamakee County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Buchanan County, IA, Buena Vista County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cerro Gordo County, IA, Cherokee County, IA, Chickasaw County, IA, Clay County, IA, Clayton County, IA, Crawford County, IA, Delaware County, IA, Dickinson County, IA, Emmet County, IA, Fayette County, IA, Floyd County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Howard County, IA, Humboldt County, IA, Ida County, IA, Kossuth County, IA, Lyon County, IA, Mitchell County, IA, Monona County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Sac County, IA, Sioux County, IA, Story County, IA, Webster County, IA, Winnebago County, IA, Winneshiek County, IA, Woodbury County, IA, Worth County, IA, Wright County, IA, Blue Earth County, MN, Brown County, MN, Cottonwood County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Houston County, MN, Jackson County, MN, Le Sueur County, MN, Martin County, MN, Mower County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Olmsted County, MN, Pipestone County, MN, Redwood County, MN, Rice County, MN, Rock County, MN, Steele County, MN, Wabasha County, MN, Waseca County, MN, Watonwan County, MN, Winona County, MN, Burt County, NE, Dakota County, NE, Thurston County, NE, Union County, SD, Buffalo County, WI, Eau Claire County, WI, La Crosse County, WI, Pepin County, WI, Pierce County, WI, Trempealeau County, WI

The radar

The Minneapolis radar (KMPX), 166 km from the middle of the area, began a volume at 20:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Warnings issued inside it

35 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 29, 2:27 PM CSTSevere Thunderstorm WarningMPXNicollet, Sibley48 min
Mar 29, 2:38 PM CSTSevere Thunderstorm WarningARXBuffalo57 min
Mar 29, 2:47 PM CSTSevere Thunderstorm WarningMPXFaribault, Freeborn48 min
Mar 29, 2:52 PM CSTSevere Thunderstorm WarningFSDRock33 min
Mar 29, 2:56 PM CSTSevere Thunderstorm WarningARXWinona34 min
Mar 29, 3:00 PM CSTTornado WarningMPXFreeborn35 min
Mar 29, 3:01 PM CSTSevere Thunderstorm WarningARXTrempealeau29 min
Mar 29, 3:09 PM CSTTornado WarningFSDMurray, Nobles, Rock51 min
Mar 29, 3:12 PM CSTSevere Thunderstorm WarningMPXDakota, Hennepin, Ramsey63 min
Mar 29, 3:23 PM CSTSevere Thunderstorm WarningMPXFreeborn, Steele37 min
Mar 29, 3:31 PM CSTSevere Thunderstorm WarningARXDodge, Mower44 min
Mar 29, 3:32 PM CSTSevere Thunderstorm WarningMPXDakota, Washington63 min
Mar 29, 3:32 PM CSTSevere Thunderstorm WarningMPXGoodhue63 min
Mar 29, 3:50 PM CSTTornado WarningFSDCottonwood, Murray50 min
Mar 29, 3:56 PM CSTSevere Thunderstorm WarningARXOlmsted64 min
Mar 29, 4:13 PM CSTTornado WarningARXDodge47 min
Mar 29, 4:18 PM CSTSevere Thunderstorm WarningARXWabasha57 min
Mar 29, 4:21 PM CSTTornado WarningMPXBrown, Watonwan64 min
Mar 29, 4:39 PM CSTTornado WarningARXWabasha51 min
Mar 29, 4:45 PM CSTSevere Thunderstorm WarningARXBuffalo60 min
Mar 29, 4:48 PM CSTSevere Thunderstorm WarningFSDCottonwood32 min
Mar 29, 4:56 PM CSTTornado WarningMPXBlue Earth, Nicollet59 min
Mar 29, 5:02 PM CSTTornado WarningMPXPepin28 min
Mar 29, 5:16 PM CSTTornado WarningARXBuffalo14 min
Mar 29, 5:23 PM CSTTornado WarningMPXLe Sueur52 min
Mar 29, 5:36 PM CSTSevere Thunderstorm WarningMPXEau Claire39 min
Mar 29, 5:47 PM CSTTornado WarningMPXBlue Earth, Nicollet48 min
Mar 29, 5:58 PM CSTSevere Thunderstorm WarningMPXDunn, Pepin, Pierce47 min
Mar 29, 6:08 PM CSTTornado WarningMPXLe Sueur, Rice57 min
Mar 29, 6:25 PM CSTTornado WarningMPXDakota50 min
Mar 29, 6:31 PM CSTTornado WarningARXBuffalo29 min
Mar 29, 6:37 PM CSTTornado WarningMPXEau Claire53 min
Mar 29, 7:07 PM CSTSevere Thunderstorm WarningMPXGoodhue63 min
Mar 29, 7:37 PM CSTSevere Thunderstorm WarningOAXMonona48 min
Mar 29, 7:45 PM CSTSevere Thunderstorm WarningMPXBlue Earth, Waseca45 min

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.0 hours before the alert went out and 165 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 12:00Z on 1998-03-29Temperature 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 12:00Z on 1998-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 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
551 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
251 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.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 29, 2:45 PM CSTTornado WatchSPCHouston, Winona6 hr
Mar 29, 3:15 PM CSTSevere Thunderstorm WatchSPCAnoka, Benton, Carver, Chippewa, Chisago, Dakota and 23 more5 hr
Mar 29, 11:00 AM CSTSevere Thunderstorm WatchSPCAdams, Brown, Buffalo, Calumet, Chippewa, Clark and 33 more6 hr

Nearby

Tornado Watches in Iowa, 1998Tornado Watches in Minnesota, 1998Tornado Watches in Wisconsin, 1998Every tornado watch in 1998

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; radar from the NEXRAD Level II archive.