Marine Weather and Tide Forecast for Superior, WI
June 1, 2024 3:05 PM CDT (20:05 UTC) Change Location
 | Sunrise 5:15 AM Sunset 8:56 PM Moonrise 1:38 AM Moonset 2:16 PM |
LSZ145 Expires:202405260000;;865145 Fzus73 Kdlh 252309 Mwsdlh
marine weather statement national weather service duluth mn 609 pm cdt Sat may 25 2024
lsz144-145-162-260000- 609 pm cdt Sat may 25 2024
.an area of Thunderstorms approaching western lake superior - .
the areas affected include - . Duluth mn to port wing wi - . Lake superior west of a line from saxon harbor wi to grand portage mn beyond 5nm - . Two harbors to duluth mn - .
at 608 pm cdt, doppler radar indicated an area of Thunderstorms, capable of producing winds to around 30 knots, small hail, and frequent cloud to water lightning. This area of Thunderstorms was located along a line extending from 24 nm southwest of duluth harbor to 16 nm southwest of barkers island to 21 nm south of superior harbor, moving northeast at 35 knots.
locations impacted include - . Superior harbor, duluth lift bridge channel, duluth harbor, superior entry, and barkers island.
precautionary/preparedness actions - .
mariners can expect wind gusts up to 33 knots, locally higher waves, cloud to water lightning strikes, small hail, and heavy downpours. Boaters should seek safe harbor until these storms pass.
&&
lat - .lon 4669 9229 4668 9224 4672 9223 4684 9205 4674 9167 4672 9162 4666 9193 4666 9203 4671 9210 4666 9211 4665 9216 4662 9221 4663 9228 4664 9229 4664 9230
marine weather statement national weather service duluth mn 609 pm cdt Sat may 25 2024
lsz144-145-162-260000- 609 pm cdt Sat may 25 2024
the areas affected include - . Duluth mn to port wing wi - . Lake superior west of a line from saxon harbor wi to grand portage mn beyond 5nm - . Two harbors to duluth mn - .
at 608 pm cdt, doppler radar indicated an area of Thunderstorms, capable of producing winds to around 30 knots, small hail, and frequent cloud to water lightning. This area of Thunderstorms was located along a line extending from 24 nm southwest of duluth harbor to 16 nm southwest of barkers island to 21 nm south of superior harbor, moving northeast at 35 knots.
locations impacted include - . Superior harbor, duluth lift bridge channel, duluth harbor, superior entry, and barkers island.
precautionary/preparedness actions - .
mariners can expect wind gusts up to 33 knots, locally higher waves, cloud to water lightning strikes, small hail, and heavy downpours. Boaters should seek safe harbor until these storms pass.
&&
lat - .lon 4669 9229 4668 9224 4672 9223 4684 9205 4674 9167 4672 9162 4666 9193 4666 9203 4671 9210 4666 9211 4665 9216 4662 9221 4663 9228 4664 9229 4664 9230
LSZ100
No data
No data
FXUS63 KDLH 011735 AFDDLH
Area Forecast Discussion National Weather Service Duluth MN 1235 PM CDT Sat Jun 1 2024
KEY MESSAGES
- Isolated thunderstorms may occur this afternoon in the Arrowhead and into northwest Wisconsin.
- Warm temps for Sunday with the potential for severe weather.
Some storms will be possible in the afternoon but the best chances will arrive in the late evening and overnight hours as a line of storms moves west to east.
- Very active weather pattern through next week with potential for severe storms returning Tuesday afternoon.
DISCUSSION
Issued at 407 AM CDT Sat Jun 1 2024
Current conditions:
A stalled out boundary draped over NW WI continues to bring some light rain showers across the area this morning. This boundary will loiter through the day giving way to persistent precipitation chances. The past 24 hr precipitation totals across NW WI are around .3 to .5 inches as of 1AM. These additional PoPs will garner another .2 to .4 inches with most the area staying shy of 1 inch. The river gauges in the area show no strong responses at this time so flooding concerns remain low. However, some ponding can be expected in low lying areas.
Back over in northern MN an upper level shortwave pushes across the Northern Plains with a weak cold front at the surface. With diurnal cumulus and some lift from this boundary we could see some very brief and light showers and embedded thunderstorms. However, low levels remain very dry and CAMs are not in the strongest agreement, so we have kept PoPs around 20-30%.
Sunday:
Surface high pressure will be exiting to the east during the morning hours with a surge of southerly winds streaming in before noon. The first half of the day will be quiet with high temps soaring into the upper 70s and low 80s. Some isolated storms may begin to populate in the afternoon, but the main show looks to be Sunday evening into Monday morning.
A shortwave ejecting out of the Intermountain West will lead to cyclogenesis in the Dakota's. This low is expected to propagate across the Upper Midwest with it's attendant cold front being the focal point for severe weather. Severe storms will initiate over the Northern Plains and sweep into north central MN in the evening and overnight hours. The mean wind vectors along the frontal boundary suggest the potential for a QLCS set up. The main question for our area will be how far will this line of storms be able to penetrate before running into more stable air.
As mentioned previously, good southerly flow and moisture advection through the day will see above normal temps and dewpoints in the upper 50s. MUCAPE values of 300-500 J/kg are progged by the deterministic models with bulk shear of 35-40kts.
The NCAR ensemble depicts the line of convection pushing through MN and weakening as it moves into NW WI by the early morning hours. Which looking at mid level lapse rates matches pretty well. Depending on the arrival time the severe threats will vary. The primary threat will be damaging winds but some hail and a possible tornado along our western CWA can't be ruled out. One additional threat to be aware of is the potential for some flash flooding. Soil saturation is very moist and forecasted rainfall with this system is between 1" to 1.5" For now, SPC has our western counties in a slight risk (2 out of 5)
and a marginal risk ( 1 out of 5) for most of our other counties.
Monday into midweek:
Rain showers and a few storms continue to start the work week as a strong low level jet continues to supply the region with a gulf connection. The aforementioned cold front will push out of the area in the evening hours allowing for a brief reprieve in the action.
The active pattern continues with Tuesday sporting another system moving across the region. The upper level jet digs down into the Central Plains with the parent low telegraphed to be in the Canadian Prairies. This would lead to the warm sector setting up over the Northland and another potential severe weather day.
Cluster analysis highlights ridging building over the Pacific Northwest and an upper level low stalling over the Great Lakes region. This will lead to persistent PoPs and active weather through the remainder of the week.
AVIATION /18Z TAFS THROUGH 18Z SUNDAY/
Issued at 1232 PM CDT Sat Jun 1 2024
Breezy west winds through 00Z Sunday become light and variable backing southerly 12-15Z Sunday. Mist resulting from overnight marine fog off Lake Superior may (30% chance) drop visibility at terminals along and right near the shorelines, including DLH.
MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/
Issued at 832 AM CDT Sat Jun 1 2024
A stalled frontal boundary creating light to moderate rainfall over the lake last night into this morning has created lingering dense fog, with Dense Fog Advisories now in effect. Fog is likely to clear from southwest (Twin Ports and South Shore late morning to early afternoon) to northeast (last near Grand Portage late this evening) today. Some model guidance even keeps marine fog though from Taconite Harbor northward into the overnight hours so extensions in time of the current far northern North Shore Advisory may be needed this evening. Winds remain at or below 15 knots today and Sunday.
For the open water discussion, refer to the NWS Marquette Area Forecast Discussion at weather.gov/mqt.
DLH WATCHES/WARNINGS/ADVISORIES
MN...None.
WI...None.
MARINE...Dense Fog Advisory until 10 PM CDT this evening for LSZ140-141.
Dense Fog Advisory until 4 PM CDT this afternoon for LSZ142>148-150.
Area Forecast Discussion National Weather Service Duluth MN 1235 PM CDT Sat Jun 1 2024
KEY MESSAGES
- Isolated thunderstorms may occur this afternoon in the Arrowhead and into northwest Wisconsin.
- Warm temps for Sunday with the potential for severe weather.
Some storms will be possible in the afternoon but the best chances will arrive in the late evening and overnight hours as a line of storms moves west to east.
- Very active weather pattern through next week with potential for severe storms returning Tuesday afternoon.
DISCUSSION
Issued at 407 AM CDT Sat Jun 1 2024
Current conditions:
A stalled out boundary draped over NW WI continues to bring some light rain showers across the area this morning. This boundary will loiter through the day giving way to persistent precipitation chances. The past 24 hr precipitation totals across NW WI are around .3 to .5 inches as of 1AM. These additional PoPs will garner another .2 to .4 inches with most the area staying shy of 1 inch. The river gauges in the area show no strong responses at this time so flooding concerns remain low. However, some ponding can be expected in low lying areas.
Back over in northern MN an upper level shortwave pushes across the Northern Plains with a weak cold front at the surface. With diurnal cumulus and some lift from this boundary we could see some very brief and light showers and embedded thunderstorms. However, low levels remain very dry and CAMs are not in the strongest agreement, so we have kept PoPs around 20-30%.
Sunday:
Surface high pressure will be exiting to the east during the morning hours with a surge of southerly winds streaming in before noon. The first half of the day will be quiet with high temps soaring into the upper 70s and low 80s. Some isolated storms may begin to populate in the afternoon, but the main show looks to be Sunday evening into Monday morning.
A shortwave ejecting out of the Intermountain West will lead to cyclogenesis in the Dakota's. This low is expected to propagate across the Upper Midwest with it's attendant cold front being the focal point for severe weather. Severe storms will initiate over the Northern Plains and sweep into north central MN in the evening and overnight hours. The mean wind vectors along the frontal boundary suggest the potential for a QLCS set up. The main question for our area will be how far will this line of storms be able to penetrate before running into more stable air.
As mentioned previously, good southerly flow and moisture advection through the day will see above normal temps and dewpoints in the upper 50s. MUCAPE values of 300-500 J/kg are progged by the deterministic models with bulk shear of 35-40kts.
The NCAR ensemble depicts the line of convection pushing through MN and weakening as it moves into NW WI by the early morning hours. Which looking at mid level lapse rates matches pretty well. Depending on the arrival time the severe threats will vary. The primary threat will be damaging winds but some hail and a possible tornado along our western CWA can't be ruled out. One additional threat to be aware of is the potential for some flash flooding. Soil saturation is very moist and forecasted rainfall with this system is between 1" to 1.5" For now, SPC has our western counties in a slight risk (2 out of 5)
and a marginal risk ( 1 out of 5) for most of our other counties.
Monday into midweek:
Rain showers and a few storms continue to start the work week as a strong low level jet continues to supply the region with a gulf connection. The aforementioned cold front will push out of the area in the evening hours allowing for a brief reprieve in the action.
The active pattern continues with Tuesday sporting another system moving across the region. The upper level jet digs down into the Central Plains with the parent low telegraphed to be in the Canadian Prairies. This would lead to the warm sector setting up over the Northland and another potential severe weather day.
Cluster analysis highlights ridging building over the Pacific Northwest and an upper level low stalling over the Great Lakes region. This will lead to persistent PoPs and active weather through the remainder of the week.
AVIATION /18Z TAFS THROUGH 18Z SUNDAY/
Issued at 1232 PM CDT Sat Jun 1 2024
Breezy west winds through 00Z Sunday become light and variable backing southerly 12-15Z Sunday. Mist resulting from overnight marine fog off Lake Superior may (30% chance) drop visibility at terminals along and right near the shorelines, including DLH.
MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/
Issued at 832 AM CDT Sat Jun 1 2024
A stalled frontal boundary creating light to moderate rainfall over the lake last night into this morning has created lingering dense fog, with Dense Fog Advisories now in effect. Fog is likely to clear from southwest (Twin Ports and South Shore late morning to early afternoon) to northeast (last near Grand Portage late this evening) today. Some model guidance even keeps marine fog though from Taconite Harbor northward into the overnight hours so extensions in time of the current far northern North Shore Advisory may be needed this evening. Winds remain at or below 15 knots today and Sunday.
For the open water discussion, refer to the NWS Marquette Area Forecast Discussion at weather.gov/mqt.
DLH WATCHES/WARNINGS/ADVISORIES
MN...None.
WI...None.
MARINE...Dense Fog Advisory until 10 PM CDT this evening for LSZ140-141.
Dense Fog Advisory until 4 PM CDT this afternoon for LSZ142>148-150.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| DULM5 - 9099064 - Duluth, MN | 6 mi | 48 min | NE 2.9G | 62°F | 56°F | 29.82 | 56°F | |
| PKBW3 | 7 mi | 126 min | NNE 4.1 | 73°F | 29.89 | 41°F | ||
| 45027 - North of Duluth, MN | 11 mi | 46 min | ENE 3.9 | 50°F | 55°F | 0 ft | 29.90 | 50°F |
| 45028 - Western Lake Superior | 12 mi | 96 min | E 5.8 | 53°F | 53°F | 29.88 | 51°F | |
| PNGW3 - Port Wing, WI | 34 mi | 86 min | NW 4.1G | 66°F | 29.89 |
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KDYT SKY HARBOR,MN | 2 sm | 10 min | NE 05 | 10 sm | A Few Clouds | 61°F | 57°F | 88% | 29.85 | |
| KSUW RICHARD I BONG,WI | 4 sm | 10 min | WNW 12G16 | 10 sm | Partly Cloudy | 77°F | 45°F | 32% | 29.86 | |
| KDLH DULUTH INTL,MN | 13 sm | 10 min | WSW 11G21 | 10 sm | Partly Cloudy | 75°F | 43°F | 31% | 29.86 |
Duluth, MN,
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