Alert archive / Minnesota / Severe Thunderstorm Watches in 1998

Severe Thunderstorm Watch 686

June 27, 199834 counties in Minnesota

The Storm Prediction Center issued this severe thunderstorm watch at Jun 27, 1998, 9:00 PM CDT for 34 counties in Minnesota. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 27, 1998, 9:00 PM CDT (02:00 UTC)
Expired
Jun 28, 1998, 2:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 34 counties

Aitkin County, MN, Becker County, MN, Beltrami County, MN, Benton County, MN, Cass County, MN, Clay County, MN, Clearwater County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Isanti County, MN, Itasca County, MN, Kanabec County, MN, Kittson County, MN, Koochiching County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Mille Lacs County, MN, Morrison County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Pope County, MN, Red Lake County, MN, Roseau County, MN, Stearns County, MN, Stevens County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 189 km from the middle of the area, began a volume at 02:04 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

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

IssuedProductOfficeCountiesLasted
Jun 27, 9:01 PM CDTSevere Thunderstorm WarningFGFBeltrami34 min
Jun 27, 9:17 PM CDTSevere Thunderstorm WarningFGFClearwater33 min
Jun 27, 9:27 PM CDTSevere Thunderstorm WarningDLHKoochiching63 min
Jun 27, 9:29 PM CDTSevere Thunderstorm WarningFGFBecker31 min
Jun 27, 9:34 PM CDTSevere Thunderstorm WarningFGFBeltrami31 min
Jun 27, 9:46 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope64 min
Jun 27, 9:56 PM CDTSevere Thunderstorm WarningFGFWadena44 min
Jun 27, 9:57 PM CDTSevere Thunderstorm WarningFGFHubbard33 min
Jun 27, 10:07 PM CDTSevere Thunderstorm WarningDLHCass63 min
Jun 27, 10:43 PM CDTSevere Thunderstorm WarningFGFWadena32 min
Jun 27, 10:49 PM CDTSevere Thunderstorm WarningFGFHubbard36 min
Jun 27, 10:54 PM CDTSevere Thunderstorm WarningDLHItasca61 min
Jun 27, 11:37 PM CDTSevere Thunderstorm WarningDLHCrow Wing63 min
Jun 28, 12:00 AM CDTSevere Thunderstorm WarningDLHCass, Itasca60 min

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 2.0 hours before the alert went out and 158 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, International Fa, MN at 00:00Z on 1998-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 725 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, International Fa, MN at 00:00Z on 1998-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
725 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
1251 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
5 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.6

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, 7:00 PM CDTTornado WatchSPCDodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more6 hr

Nearby

Severe Thunderstorm Watches in Minnesota, 1998Every severe thunderstorm 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.