Alert archive / Minnesota / Tornado Watches in 1998

Tornado Watch 468

May 30, 199851 counties in Minnesota; 13 counties in South Dakota; 7 counties in Wisconsin

The Storm Prediction Center issued this tornado watch at May 30, 1998, 4:30 PM CDT for 51 counties in Minnesota; 13 counties in South Dakota; 7 counties in Wisconsin. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 30, 1998, 4:30 PM CDT (21:30 UTC)
Expired
May 30, 1998, 10:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 71 counties

Anoka County, MN, Benton County, MN, Big Stone County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Cottonwood County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Jackson County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Lincoln County, MN, Lyon County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mower County, MN, Murray County, MN, Nicollet County, MN, Olmsted County, MN, Pipestone County, MN, Pope County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Stevens County, MN, Swift County, MN, Traverse County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Winona County, MN, Wright County, MN, Yellow Medicine County, MN, Brookings County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Kingsbury County, SD, Lake County, SD, Marshall County, SD, Miner County, SD, Moody County, SD, Roberts County, SD, Barron County, WI, Buffalo County, WI, Dunn County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 146 km from the middle of the area, began a volume at 21:50 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

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

IssuedProductOfficeCountiesLasted
May 30, 5:56 PM CDTSevere Thunderstorm WarningMPXBenton, Stearns54 min
May 30, 6:46 PM CDTSevere Thunderstorm WarningMPXIsanti59 min
May 30, 6:46 PM CDTSevere Thunderstorm WarningMPXIsanti, Mille Lacs49 min
May 30, 6:46 PM CDTSevere Thunderstorm WarningMPXBenton49 min
May 30, 6:46 PM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs59 min
May 30, 7:05 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Swift55 min
May 30, 7:16 PM CDTSevere Thunderstorm WarningABRClark, Codington64 min
May 30, 7:18 PM CDTSevere Thunderstorm WarningMPXChippewa57 min
May 30, 7:21 PM CDTSevere Thunderstorm WarningABRClark, Codington59 min
May 30, 7:30 PM CDTSevere Thunderstorm WarningMPXStearns45 min
May 30, 7:34 PM CDTSevere Thunderstorm WarningMPXLac qui Parle56 min
May 30, 7:40 PM CDTSevere Thunderstorm WarningABRHamlin65 min
May 30, 7:45 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti45 min
May 30, 7:58 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker62 min
May 30, 8:12 PM CDTSevere Thunderstorm WarningMPXChippewa, Yellow Medicine48 min
May 30, 8:16 PM CDTSevere Thunderstorm WarningMPXStearns44 min
May 30, 8:16 PM CDTSevere Thunderstorm WarningABRDeuel34 min
May 30, 8:24 PM CDTSevere Thunderstorm WarningFSDMiner31 min
May 30, 8:26 PM CDTSevere Thunderstorm WarningMPXChisago64 min
May 30, 8:39 PM CDTSevere Thunderstorm WarningMPXLac qui Parle, Yellow Medicine51 min
May 30, 8:46 PM CDTSevere Thunderstorm WarningMPXBenton, Morrison44 min
May 30, 8:59 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Meeker, Renville, Stearns61 min
May 30, 8:59 PM CDTSevere Thunderstorm WarningMPXRedwood61 min
May 30, 9:09 PM CDTSevere Thunderstorm WarningFSDLake, Moody31 min
May 30, 9:16 PM CDTSevere Thunderstorm WarningFSDLincoln, Lyon34 min
May 30, 9:26 PM CDTSevere Thunderstorm WarningMPXYellow Medicine34 min
May 30, 9:26 PM CDTSevere Thunderstorm WarningMPXBarron, Polk64 min
May 30, 9:47 PM CDTSevere Thunderstorm WarningMPXMcLeod, Wright58 min
May 30, 9:47 PM CDTSevere Thunderstorm WarningMPXNicollet, Sibley58 min
May 30, 9:54 PM CDTSevere Thunderstorm WarningMPXAnoka, Isanti61 min

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.5 hours before the alert went out and 143 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 1998-05-30Temperature 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 1998-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 601 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
1720 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
601 m²/s²
0-3 km storm-relative helicity
806 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
May 29, 10:15 PM CDTSevere Thunderstorm WatchSPCBennett, Jackson, Jones, Mellette, Oglala Lakota, Pennington and 1 more6 hr
May 30, 4:00 AM CDTSevere Thunderstorm WatchSPCAurora, Beadle, Bennett, Bon Homme, Brookings, Brule and 32 more6 hr
May 30, 4:00 PM CDTSevere Thunderstorm WatchSPCBeadle, Brown, Buffalo, Butte, Campbell, Corson and 20 more6 hr

Nearby

Tornado Watches in Minnesota, 1998Tornado Watches in South Dakota, 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.