Alert archive / Minnesota / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 534

June 28, 199739 counties in Minnesota

The Storm Prediction Center issued this severe thunderstorm watch at Jun 28, 1997, 12:30 PM CDT for 39 counties in Minnesota. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 28, 1997, 12:30 PM CDT (17:30 UTC)
Expired
Jun 28, 1997, 6:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 39 counties

Anoka County, MN, Benton County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Crow Wing County, MN, Douglas County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Lyon County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Otter Tail County, MN, Pine 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, Stevens County, MN, Swift County, MN, Todd County, MN, Wadena County, MN, Waseca County, MN, Wright County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 114 km from the middle of the area, began a volume at 17:33 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

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

IssuedProductOfficeCountiesLasted
Jun 28, 1:03 PM CDTSevere Thunderstorm WarningFGFOtter Tail27 min
Jun 28, 1:10 PM CDTSevere Thunderstorm WarningDLHCass, Crow Wing65 min
Jun 28, 1:10 PM CDTSevere Thunderstorm WarningFGFWadena35 min
Jun 28, 1:10 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Stearns, Todd50 min
Jun 28, 1:10 PM CDTSevere Thunderstorm WarningMPXSwift50 min
Jun 28, 1:25 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Rice50 min
Jun 28, 1:33 PM CDTSevere Thunderstorm WarningMPXMeeker57 min
Jun 28, 1:33 PM CDTSevere Thunderstorm WarningMPXMorrison57 min
Jun 28, 1:50 PM CDTTornado WarningMPXKandiyohi, Meeker, Stearns40 min
Jun 28, 2:04 PM CDTSevere Thunderstorm WarningMPXBenton, Stearns41 min
Jun 28, 2:12 PM CDTSevere Thunderstorm WarningMPXRenville48 min
Jun 28, 2:15 PM CDTSevere Thunderstorm WarningDLHAitkin, Crow Wing60 min
Jun 28, 2:19 PM CDTSevere Thunderstorm WarningMPXMille Lacs, Morrison41 min
Jun 28, 2:22 PM CDTSevere Thunderstorm WarningMPXSherburne, Wright53 min
Jun 28, 2:28 PM CDTTornado WarningMPXWright32 min
Jun 28, 2:35 PM CDTSevere Thunderstorm WarningMPXMcLeod, Sibley55 min
Jun 28, 2:47 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet43 min
Jun 28, 2:51 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti, Kanabec54 min
Jun 28, 2:57 PM CDTSevere Thunderstorm WarningDLHCarlton, Pine63 min
Jun 28, 2:58 PM CDTSevere Thunderstorm WarningMPXAnoka, Carver, Hennepin62 min
Jun 28, 3:20 PM CDTSevere Thunderstorm WarningMPXLe Sueur, Scott40 min
Jun 28, 3:54 PM CDTSevere Thunderstorm WarningMPXDakota, Hennepin, Ramsey, Washington66 min
Jun 28, 3:54 PM CDTSevere Thunderstorm WarningMPXScott66 min
Jun 28, 4:03 PM CDTSevere Thunderstorm WarningMPXBrown57 min
Jun 28, 4:48 PM CDTSevere Thunderstorm WarningMPXGoodhue, Rice42 min
Jun 28, 4:52 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Watonwan53 min
Jun 28, 5:40 PM CDTSevere Thunderstorm WarningMPXFaribault, Waseca35 min

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 5.5 hours before the alert went out and 111 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 1997-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1849 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, Minneapolis, MN at 12:00Z on 1997-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 square meters per square second.1939Sfc1 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
1849 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
891 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
197 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.5

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
Jun 27, 8:30 PM CDTSevere Thunderstorm WatchSPCBecker, Beltrami, Cass, Clay, Clearwater, Hubbard and 3 more6 hr
Jun 27, 10:45 PM CDTSevere Thunderstorm WatchSPCAitkin, Becker, Beltrami, Carlton, Cass, Clay and 18 more5 hr
Jun 28, 9:00 AM CDTSevere Thunderstorm WatchSPCBecker, Big Stone, Clay, Grant, Otter Tail, Stevens and 3 more6 hr
Jun 28, 3:30 PM CDTSevere Thunderstorm WatchSPCChisago, Dakota, Dodge, Fillmore, Freeborn, Goodhue and 8 more6 hr
Jun 28, 6:30 PM CDTSevere Thunderstorm WatchSPCBlue Earth, Dodge, Faribault, Fillmore, Freeborn, Goodhue and 11 more6 hr

Nearby

Severe Thunderstorm Watches in Minnesota, 1997Every severe thunderstorm watch in 1997

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.