Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 32, NWS Duluth, MN

July 5, 2020Douglas County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at Jul 5, 2020, 7:28 PM CDT for Douglas County, Wisconsin. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 5, 2020, 7:28 PM CDT (00:28 UTC)
Expired
Jul 5, 2020, 7:47 PM CDT
In force
19 min
Issued by
NWS Duluth, MN
Area
Storm-based polygon
Hail
1.25 in
Wind
50.0 mph

County Douglas County, WI

The radar

The Duluth radar (KDLH), 48 km from the middle of the area, began a volume at 00:29 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.5 hours before the alert went out and 223 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 2020-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1134 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 00:00Z on 2020-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 square meters per square second.193958Sfc1 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
1134 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
1609 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
-43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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.

NWS Duluth, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 5, 6:48 PM CDT, 40 minutes earlier.

Area forecast discussion, Jul 5, 6:48 PM CDT, 40 minutes before
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Hazardous weather outlook, Jul 5, 3:39 PM CDT, 3 hours 49 minutes before
Hazardous Weather Outlook
National Weather Service Duluth MN
339 PM CDT Sun Jul 5 2020

MNZ010>012-018>021-025-026-033>038-062045-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-
339 PM CDT Sun Jul 5 2020

This Hazardous Weather Outlook is for portions of northeast
Minnesota.

.DAY ONE...This afternoon and Tonight

Scattered thunderstorms are possible across northeast Minnesota
into this evening. A few storms may be strong to severe with large
hail and gusty winds possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There are periodic chances of thunderstorms Monday through
Saturday.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotters are encouraged to report hail of any size and
rainfall amounts to the National Weather Service.

WIZ001>004-006>009-062045-
Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
339 PM CDT Sun Jul 5 2020

This Hazardous Weather Outlook is for portions of northwest
Wisconsin.

.DAY ONE...This afternoon and Tonight

A few isolated thunderstorms are possible across parts of
northwest Wisconsin away from Lake Superior this afternoon into
the evening. Storms are not expected to be severe, but a few
strong storms producing small hail and gusty winds are possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There are periodic chances of thunderstorms Monday through
Saturday.

.SPOTTER INFORMATION STATEMENT...

Skywarn spotter activation is not anticipated this afternoon or
tonight. Rainfall amounts from spotters and the public are
encouraged.

LSZ121-140>148-062045-
Bayfield to Oak Point WI-Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
339 PM CDT Sun Jul 5 2020

This Hazardous Weather Outlook is for portions of the Nearshore
waters of western Lake Superior.

.DAY ONE...This afternoon and Tonight

A few thunderstorms will be possible this afternoon and evening.
Storms are not expected to be severe, but a few strong storms
producing small hail and gusty winds are possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a potential for thunderstorms across western Lake
Superior Monday and then again on Wednesday. Storms could be
strong with gusty winds and small hail.

LE

More information may be obtained at the following web address:
http://www.weather.gov/duluth (all lower case)

In the hours before

Local storm report, Jul 5, 4:52 PM CDT, 2 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
452 PM CDT SUN JUL 5 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0452 PM     HEAVY RAIN       5 WSW INO               46.50N 91.28W
07/05/2020  M4.00 INCH       BAYFIELD           WI   TRAINED SPOTTER

&&

KMK
Local storm report, Jul 5, 4:57 PM CDT, 2 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
457 PM CDT SUN JUL 5 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0456 PM     HAIL             1 NNW TRADE RIVER       45.66N 92.68W
07/05/2020  E0.88 INCH       BURNETT            WI   TRAINED SPOTTER

&&

KMK
Local storm report, Jul 5, 5:44 PM CDT, 1 hour 44 minutes before
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Local storm report, Jul 5, 6:27 PM CDT, 1 hour 1 minute before
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Local storm report, Jul 5, 7:04 PM CDT, 24 minutes before
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Special weather statement, Jul 5, 7:20 PM CDT, 8 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 7:00 PM CDTSevere Thunderstorm WarningDLHSaint Louis11 min
Jul 5, 7:20 PM CDTSpecial Weather StatementDLHCarlton10 min
Jul 5, 7:29 PM CDTSpecial Weather StatementDLHCarlton16 min
Jul 5, 7:32 PM CDTSpecial Weather StatementDLH13 min
Jul 5, 7:52 PM CDTSpecial Weather StatementDLHCook8 min
Jul 5, 7:54 PM CDTSpecial Weather StatementDLHSaint Louis21 min
Jul 5, 8:16 PM CDTAreal Flood AdvisoryDLHSaint Louis3 hr
Jul 5, 11:00 PM CDTSpecial Weather StatementDLHKoochiching15 min
Jul 5, 11:12 PM CDTSpecial Weather StatementDLHLake18 min
Jul 5, 11:20 PM CDTSpecial Weather StatementDLHKoochiching10 min
Jul 6, 1:00 PM CDTSpecial Weather StatementDLHKoochiching30 min
Jul 6, 1:33 PM CDTSpecial Weather StatementDLHKoochiching12 min
Jul 6, 1:38 PM CDTSpecial Weather StatementDLH22 min
Jul 6, 1:45 PM CDTSpecial Weather StatementDLHCook15 min
Jul 6, 1:56 PM CDTSpecial Weather StatementDLHKoochiching19 min
Jul 6, 1:59 PM CDTSevere Thunderstorm WarningDLHKoochiching, Saint Louis31 min
Jul 6, 2:03 PM CDTSpecial Weather StatementDLHCook12 min
Jul 6, 2:07 PM CDTSpecial Weather StatementDLH8 min
Jul 6, 2:20 PM CDTSpecial Weather StatementDLHCook25 min
Jul 6, 2:27 PM CDTSpecial Weather StatementDLHItasca33 min
Jul 6, 3:20 PM CDTSpecial Weather StatementDLHSaint Louis25 min
Jul 6, 3:45 PM CDTSpecial Weather StatementDLHLake30 min
Jul 6, 3:51 PM CDTSpecial Weather StatementDLHSaint Louis24 min
Jul 6, 3:58 PM CDTSpecial Weather StatementDLHCook32 min
Jul 6, 4:13 PM CDTSpecial Weather StatementDLHLake32 min
Jul 6, 4:15 PM CDTSpecial Weather StatementDLH30 min
Jul 6, 4:45 PM CDTSpecial Weather StatementDLHLake30 min
Jul 6, 4:46 PM CDTSpecial Weather StatementDLHCarlton29 min
Jul 6, 5:10 PM CDTAreal Flood WarningDLHLake, Saint Louis3 hr
Jul 6, 5:15 PM CDTSpecial Weather StatementDLHCarlton15 min
Jul 6, 5:18 PM CDTSpecial Weather StatementDLHCook12 min
Jul 6, 5:30 PM CDTSpecial Weather StatementDLHLake15 min
Jul 6, 6:05 PM CDTSpecial Weather StatementDLHCook25 min
Jul 6, 8:33 AM CDTSpecial Weather StatementDLHWashburn27 min
Jul 6, 9:00 AM CDTSpecial Weather StatementDLHWashburn30 min
Jul 6, 9:30 AM CDTSpecial Weather StatementDLHBurnett30 min
Jul 6, 9:47 AM CDTSpecial Weather StatementDLHIron28 min
Jul 6, 10:04 AM CDTSpecial Weather StatementDLHWashburn26 min
Jul 6, 10:29 AM CDTSpecial Weather StatementDLHWashburn16 min
Jul 6, 10:53 AM CDTSpecial Weather StatementDLHIron37 min
Jul 6, 10:55 AM CDTSpecial Weather StatementDLHSawyer35 min
Jul 6, 11:21 AM CDTSpecial Weather StatementDLHIron24 min
Jul 6, 11:35 AM CDTSpecial Weather StatementDLHIron25 min
Jul 6, 11:45 AM CDTSpecial Weather StatementDLHSawyer15 min
Jul 6, 12:00 PM CDTSpecial Weather StatementDLHPrice30 min
Jul 6, 12:14 PM CDTSpecial Weather StatementDLHPrice16 min
Jul 6, 12:34 PM CDTSpecial Weather StatementDLHIron26 min
Jul 6, 5:55 PM CDTSpecial Weather StatementDLHPrice20 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2020Every severe thunderstorm warning in 2020

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.