Alert archive / Minnesota / Beach Hazards Statements in 2019

Beach Hazards Statement 20, NWS Duluth, MN

September 30, 2019Carlton County, Saint Louis County, Minnesota; Douglas County, Wisconsin

NWS Duluth, MN issued this beach hazards statement at Sep 30, 2019, 3:43 AM CDT for Carlton County, Saint Louis County, Minnesota; Douglas County, Wisconsin. It took effect at Sep 30, 2019, 4:00 AM CDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Sep 30, 2019, 3:43 AM CDT (08:43 UTC)
In effect from
Sep 30, 2019, 4:00 AM CDT
Expired
Sep 30, 2019, 8:00 PM CDT
In force
16 hr
Issued by
NWS Duluth, MN

Counties Carlton County, MN, Saint Louis County, MN, Douglas County, WI

The radar

The Duluth radar (KDLH), 11 km from the middle of the area, began a volume at 08:44 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, 8.7 hours before the alert went out and 424 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 2019-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2019-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 153 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
599 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
153 m²/s²
0-3 km storm-relative helicity
247 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 beach hazards 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 beach hazards statement went out at Sep 30, 12:50 AM CDT, 2 hours 53 minutes earlier.

Area forecast discussion, Sep 30, 12:50 AM CDT, 2 hours 53 minutes before
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Hazardous weather outlook, Sep 29, 3:56 PM CDT, 11 hours 47 minutes before
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In the hours before

Special weather statement, Sep 29, 11:18 PM CDT, 4 hours 25 minutes before
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Special weather statement, Sep 30, 1:21 AM CDT, 2 hours 22 minutes before
Special Weather Statement
National Weather Service Duluth MN
121 AM CDT Mon Sep 30 2019

MNZ038-WIZ006-300645-
Pine-Burnett-
121 AM CDT Mon Sep 30 2019

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN PINE AND WEST CENTRAL
BURNETT COUNTIES...

At 121 AM CDT, a strong thunderstorm was over Rock Creek, or near
Pine City, moving northeast at 45 mph.

Wind gusts up to 45 mph, dime size hail, heavy downpours, and
occasional cloud to ground lightning can be expected with this storm.

This storm will be near...
  Pine City around 130 AM CDT.
  Hinckley around 145 AM CDT.

Other locations impacted by this storm include Saint Croix State
Park, Greely, West Rock, Cloverdale, Chengwatana State Forest and
Beroun.

Seek shelter inside a sturdy building and away from windows until
this storm passes. Get off area lakes and seek shelter on shore in a
sturdy shelter or a hard topped vehicle.

LAT...LON 4572 9287 4573 9285 4573 9312 4574 9314
      4579 9314 4616 9277 4598 9247 4571 9287
TIME...MOT...LOC 0621Z 220DEG 38KT 4576 9300

JTS
Special weather statement, Sep 30, 1:55 AM CDT, 1 hour 48 minutes before
Special Weather Statement
National Weather Service Duluth MN
155 AM CDT Mon Sep 30 2019

MNZ036-038-300730-
Pine-South Aitkin-
155 AM CDT Mon Sep 30 2019

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN AITKIN AND
NORTHWESTERN PINE COUNTIES...

At 155 AM CDT, a strong thunderstorm was near Isle, or 11 miles
southeast of Mille Lacs Lake, moving east at 40 mph.

Wind gusts up to 45 mph, half inch hail, heavy downpours, and
frequent cloud to ground lightning can be expected with this storm.

This storm will be near...
  McGrath around 210 AM CDT.

Other locations impacted by this storm include Arthyde, Dads Corner
and Finlayson.

Seek shelter inside a sturdy building and away from windows until
this storm passes. Get off area lakes and seek shelter on shore in a
sturdy shelter or a hard topped vehicle.

LAT...LON 4624 9343 4625 9363 4627 9364 4646 9306
      4642 9305 4642 9299 4622 9289 4616 9323
      4615 9343
TIME...MOT...LOC 0655Z 249DEG 36KT 4622 9350

JTS
Special weather statement, Sep 30, 2:49 AM CDT, 54 minutes before
Special Weather Statement
National Weather Service Duluth MN
249 AM CDT Mon Sep 30 2019

MNZ036>038-300800-
Pine-Carlton/South St. Louis-South Aitkin-
249 AM CDT Mon Sep 30 2019

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN AITKIN...
NORTHWESTERN PINE AND SOUTHWESTERN CARLTON COUNTIES...

At 249 AM CDT, an area of strong thunderstorms was over Kettle
River, or 26 miles southwest of Cloquet, moving northeast at 45 mph.

Pea size hail, torrential rainfall, and frequent cloud to ground
lightning can be expected with these storms.

Locations impacted include...
Willow River, Rutledge, Kettle River, McGrath, Sturgeon Lake,
Finlayson, Denham, Arthyde, Moose Lake State Park, Ronald, Dads
Corner, and Banning State Park.

Torrential rainfall is occurring with these storms, and may cause
localized flooding. Do not drive into areas where water covers the
road, the road may be washed out.

LAT...LON 4616 9306 4616 9342 4617 9343 4624 9343
      4625 9353 4659 9284 4636 9257 4615 9305
TIME...MOT...LOC 0748Z 240DEG 39KT 4647 9291

GSF

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 29, 11:18 PM CDTSpecial Weather StatementDLHCass12 min
Sep 30, 1:21 AM CDTSpecial Weather StatementDLHPine24 min
Sep 30, 1:55 AM CDTSpecial Weather StatementDLHAitkin35 min
Sep 30, 2:49 AM CDTSpecial Weather StatementDLHPine11 min
Sep 30, 3:16 AM CDTFlood WatchDLHAitkin, Carlton, Pine, Saint Louis9 hr
Sep 30, 4:11 AM CDTAreal Flood AdvisoryDLHAitkin, Carlton, Pine3 hr
Sep 30, 5:27 AM CDTFlash Flood WarningDLHCarlton, Pine6 hr
Sep 30, 7:19 AM CDTFlash Flood WarningDLHCarlton, Pine3 hr
Sep 30, 9:33 AM CDTFlash Flood WarningDLHCarlton, Pine6 hr
Sep 30, 11:32 AM CDTAreal Flood WarningDLHAitkin, Carlton, Pine27 hr
Sep 30, 3:24 PM CDTAreal Flood WarningDLHCarlton, Pine23 hr
Sep 30, 6:03 PM CDTAreal Flood AdvisoryDLHAitkin, Crow Wing, Saint Louis3 hr
Sep 30, 3:50 AM CDTAreal Flood AdvisoryDLHSawyer, Washburn3 hr
Sep 30, 6:23 AM CDTFlash Flood WarningDLHDouglas3 hr

Nearby

Beach Hazards Statements in Minnesota, 2019Beach Hazards Statements in Wisconsin, 2019Every beach hazards statement in 2019

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.