Alert archive / Wisconsin / Special Weather Statements in 2020

Special Weather Statement, NWS Duluth, MN

July 19, 2020Price County, Wisconsin

NWS Duluth, MN issued this special weather statement at Jul 19, 2020, 12:21 AM CDT for Price County, Wisconsin. It was in force for 9 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 19, 2020, 12:21 AM CDT (05:21 UTC)
Expired
Jul 19, 2020, 12:30 AM CDT
In force
9 min
Issued by
NWS Duluth, MN

County Price County, WI

The radar

The La Crosse radar (KARX), 189 km from the middle of the area, began a volume at 05:25 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 5.4 hours before the alert went out and 213 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, Green Bay/Straub, WI at 00:00Z on 2020-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 293 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, Green Bay/Straub, WI at 00:00Z on 2020-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
293 J/kg
Mixed-layer CIN
-321 J/kg
Mixed-layer LCL
1478 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
312 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 18, 9:31 PM CDT, 2 hours 50 minutes earlier.

Area forecast discussion, Jul 18, 9:31 PM CDT, 2 hours 50 minutes before
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Hazardous weather outlook, Jul 18, 1:05 PM CDT, 11 hours 16 minutes before
Hazardous Weather Outlook
National Weather Service Duluth MN
105 PM CDT Sat Jul 18 2020

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-191815-
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-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
105 PM CDT Sat Jul 18 2020

This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.

.DAY ONE...This afternoon and Tonight

Another round of severe thunderstorms is expected late this
afternoon and evening. The greatest risk of severe weather is
from the Brainerd, Mille Lacs, Hinckley and Cloquet areas into
much of northwest Wisconsin. Large hail to around 2 inches in
diameter, damaging winds to around 70 mph, a tornado or two, and
flash flooding will all be possible with the storms.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

A few thunderstorms will be possible Sunday, roughly along and
north of US Highway 2 in northern Minnesota. These storms are not
expected to be severe.

There will be periodic chances for more thunderstorms from Monday
into Friday with the highest chance on Tuesday. Strong storms are
possible but widespread severe weather is not expected at this
time.

.SPOTTER INFORMATION STATEMENT...

Skywarn spotters may be needed late this afternoon and evening.

LSZ121-140>148-191815-
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-
105 PM CDT Sat Jul 18 2020

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

.DAY ONE...This afternoon and Tonight

Another round of strong to severe thunderstorms will be possible
late this afternoon and evening. Large hail and damaging winds in
excess of 55 knots are the main threats. The greatest threat is
from the Twin Ports and across the South Shore.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Gusty west to northwest winds on Sunday may be strong enough
along the South Shore to produce hazardous conditions for small
craft. This would be most likely from Superior to Sand Island.

A few thunderstorms will be possible Sunday afternoon along the
North Shore. Severe storms are not expected.

There will be several chances for more thunderstorms during the
upcoming week. The highest chance of thunderstorms will be
Tuesday afternoon and evening. While a few storms may be strong
to severe, widespread severe weather is not anticipated at this
time.

PA

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 18, 10:58 PM CDT, 1 hour 23 minutes before
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Local storm report, Jul 18, 11:04 PM CDT, 1 hour 17 minutes before
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Special weather statement, Jul 18, 11:15 PM CDT, 1 hour 6 minutes before
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Special weather statement, Jul 18, 11:28 PM CDT, 53 minutes before
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Local storm report, Jul 19, 12:12 AM CDT, 9 minutes before
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Special weather statement, Jul 19, 12:21 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 7:09 PM CDTSevere Thunderstorm WarningDLHSaint Louis51 min
Jul 18, 7:21 PM CDTSpecial Weather StatementDLHCarlton24 min
Jul 18, 7:35 PM CDTSpecial Weather StatementDLHCarlton25 min
Jul 18, 7:49 PM CDTSevere Thunderstorm WarningDLHSaint Louis11 min
Jul 18, 7:55 PM CDTSevere Thunderstorm WarningDLHLake, Saint Louis50 min
Jul 18, 7:56 PM CDTSevere Thunderstorm WarningDLHCarlton, Pine49 min
Jul 18, 8:05 PM CDTSpecial Marine WarningDLH55 min
Jul 18, 8:17 PM CDTSpecial Weather StatementDLHCarlton13 min
Jul 18, 8:45 PM CDTSevere Thunderstorm WarningDLHCarlton, Pine45 min
Jul 18, 8:50 PM CDTSpecial Weather StatementDLH40 min
Jul 18, 8:55 PM CDTSpecial Marine WarningDLH35 min
Jul 18, 9:23 PM CDTSpecial Marine WarningDLH37 min
Jul 19, 12:27 AM CDTSpecial Weather StatementDLHCook18 min
Jul 19, 12:47 AM CDTSevere Thunderstorm WarningDLHCook13 min
Jul 19, 12:49 AM CDTSpecial Marine WarningDLH26 min
Jul 19, 3:50 AM CDTSmall Craft AdvisoryDLH18 hr
Jul 18, 8:22 PM CDTSpecial Weather StatementDLHBurnett23 min
Jul 18, 8:25 PM CDTSpecial Weather StatementDLHDouglas35 min
Jul 18, 8:54 PM CDTSpecial Weather StatementDLHWashburn36 min
Jul 18, 9:07 PM CDTSevere Thunderstorm WarningDLHAshland, Bayfield23 min
Jul 18, 9:27 PM CDTSpecial Weather StatementDLHBayfield, Douglas48 min
Jul 18, 9:29 PM CDTSpecial Weather StatementDLHWashburn46 min
Jul 18, 9:29 PM CDTSevere Thunderstorm WarningDLHAshland, Bayfield31 min
Jul 18, 9:57 PM CDTSevere Thunderstorm WarningDLHAshland, Bayfield48 min
Jul 18, 10:16 PM CDTSpecial Weather StatementDLHAshland14 min
Jul 18, 10:33 PM CDTSevere Thunderstorm WarningDLHAshland, Iron30 min
Jul 18, 10:38 PM CDTSpecial Weather StatementDLHSawyer37 min
Jul 18, 11:15 PM CDTSpecial Weather StatementDLHSawyer30 min
Jul 18, 11:28 PM CDTSpecial Weather StatementDLHSawyer17 min
Jul 18, 11:46 PM CDTSevere Thunderstorm WarningDLHPrice, Sawyer29 min
Jul 19, 12:12 AM CDTSevere Thunderstorm WarningDLHPrice19 min
Jul 19, 12:38 AM CDTSpecial Weather StatementDLHPrice22 min

Nearby

Special Weather Statements in Wisconsin, 2020Every special weather statement 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.