Alert archive / Minnesota / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 155, NWS Twin Cities, MN

August 6, 1996Chippewa County, Kandiyohi County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 6, 1996, 8:03 PM CDT for Chippewa County, Kandiyohi County, Minnesota. It was in force for 57 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 6, 1996, 8:03 PM CDT (01:03 UTC)
Expired
Aug 6, 1996, 9:00 PM CDT
In force
57 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Chippewa County, MN, Kandiyohi County, MN

The radar

The Minneapolis radar (KMPX), 138 km from the middle of the area, began a volume at 01:04 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.

What was reported inside it

TimeReportWhereRemark
Aug 6, 8:13 PM CDTHail 1.75Clara City, MN
Aug 6, 8:30 PM CDTThunderstorm Wind 59Willmar, MN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.1 hours before the alert went out and 135 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 00:00Z on 1996-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4613 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1996-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
4613 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
130 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, Aug 6, 2:10 PM CDT, 5 hours 53 minutes before
MNZ004>096-070200-

SPECIAL WEATHER STATEMENT...MINNESOTA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
200 PM CDT TUE AUG 6 1996

...SEVERE WEATHER EXPECTED TO DEVELOP ACROSS MINNESOTA LATE THIS
AFTERNOON AND THIS EVENING...

THE STORM PREDICTION CENTER INDICATES THAT THERE IS A SIGNIFICANT RISK
OF SEVERE THUNDERSTORMS ACROSS SOUTHERN MINNESOTA LATE THIS AFTERNOON
LASTING INTO THIS EVENING.

A STRONG COLD FRONT WAS MOVING INTO WESTERN PORTIONS OF MINNESOTA
EARLY THIS AFTERNOON. THIS FRONT WILL MOVE SLOWLY EASTWARD DURING THE
EVENING...BUMPING INTO THE HOT AND VERY HUMID AIRMASS OVER THE STATE.
THUNDERSTORMS SHOULD DEVELOP RAPIDLY AFTER 4 PM FROM NORTH CENTRAL TO
SOUTHWEST MINNESOTA. THE LINE OF STORMS WILL THEN SHIFT EASTWARD AND
AFFECT EASTERN PORTIONS OF THE STATE THROUGH THE EVENING HOURS.
<
THE MAIN THREAT FROM THE STORMS WILL BE STRONG WINDS...HAIL...AND
HEAVY DOWNPOURS. A FEW STORMS DURING THE EVENING MAY HAVE THE POTENTIAL
TO PRODUCE TORNADOES ACROSS WEST CENTRAL AND SOUTHWEST MINNESOTA.

PERSONS IN MINNESOTA ARE URGED TO STAY TUNED TO NOAA WEATHER RADIO FOR
ANY WATCHES OR WARNINGS ISSUED BY THE NATIONAL WEATHER SERVICE.
SEVERE STORM SPOTTER ACTIVATION MAY BE REQUIRED AS WELL.
DWE/JPR

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 7:59 PM CDTSevere Thunderstorm WarningMPXChippewa61 min
Aug 6, 8:49 PM CDTSevere Thunderstorm WarningMPXRedwood, Yellow Medicine46 min
Aug 6, 8:55 PM CDTTornado WarningMPXPope30 min
Aug 6, 9:02 PM CDTTornado WarningMPXMeeker43 min
Aug 6, 9:26 PM CDTSevere Thunderstorm WarningMPXBrown, Renville34 min
Aug 6, 9:47 PM CDTSevere Thunderstorm WarningMPXMcLeod, Wright48 min
Aug 6, 9:59 PM CDTSevere Thunderstorm WarningMPXCarver, Sibley46 min
Aug 6, 10:18 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Martin, Watonwan42 min
Aug 6, 10:18 PM CDTSevere Thunderstorm WarningMPXNicollet42 min
Aug 6, 10:24 PM CDTSevere Thunderstorm WarningMPXAnoka, Dakota, Hennepin, Ramsey, Scott, Sherburne66 min
Aug 6, 10:24 PM CDTSevere Thunderstorm WarningMPXWashington66 min
Aug 6, 10:57 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Waseca63 min
Aug 6, 10:57 PM CDTSevere Thunderstorm WarningMPXRice63 min
Aug 6, 11:05 PM CDTSevere Thunderstorm WarningMPXGoodhue55 min
Aug 6, 11:05 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti55 min
Aug 6, 11:32 PM CDTSevere Thunderstorm WarningMPXDakota33 min
Aug 7, 12:12 AM CDTSevere Thunderstorm WarningMPXFreeborn, Steele33 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1996Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.