Area Forecast Discussion
Issued by NWS Duluth, MN

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095
FXUS63 KDLH 040601
AFDDLH

Area Forecast Discussion
National Weather Service Duluth MN
101 AM CDT Thu Jul 4 2024

.KEY MESSAGES...

- Active pattern continues with a chance for widespread moderate
  rain this afternoon through Friday. Best chance for rain in
  excess of a tenth of an inch across southern portions of the
  Northland.

- Another system may bring additional chances of rain this weekend.

- High water persists across the Rainy River Basin and a Flood
  Advisory is in effect. See Hydro discussion for more details.

&&

.DISCUSSION...
Issued at 341 PM CDT Wed Jul 3 2024

Northwesterly flow and CAA leading to a continuously bubbling region
of cumulus clouds and some scattered rain showers this afternoon.
Westerly winds are strong and gusty at the surface. An isolated non-
severe thunderstorm could be possible closer to the International
Border late this afternoon. Into the evening, most of these clouds
and showers should dissipate as diurnal heating wears off, leaving
only the strongest of showers.

A larger system pushes in from the south and west into Thursday,
spurred by a stout trough aloft. Rain should begin by spreading from
south to north in Minnesota Thursday morning. With daytime heating,
CAMS suggest a blossoming of scattered showers across the region in
the afternoon, with the primary area of moderate more widespread
rain pushing west to east along a warm front. The northern extent of
that heavier rain currently looks to extend from the Brainerd Lakes
to northern Pine County to Hayward and Price County, with the
heaviest rainfall accumulations mostly across the St. Croix River
Basin and along and south of Highway 2 in NW WI, where an inch or
more of rain is possible by end of day Friday. Rainfall totals have
held fairly steady, except for an upward trend in Price County,
where rain in excess of 2 inches is forecast. Rain steadily pushes
out of the area from west to east through the day Friday. No severe
storms are expected but embedded thunderstorms are likely.

A brief moment of high pressure Saturday AM before our northwesterly
flow pattern delivers along shortwave to the region. This could
bring areas of rain showers through the weekend. Overall this rain
looks light and pretty dispersed with no heavy rain expected at this
time. Temperatures remain fairly seasonable through the period in
the 60s, 70s, and low 80s.

Looking much farther ahead, CPC precipitation outlooks continue to
suggest a 30-40% chance of below normal precipitation as we work our
way into mid July, which may bring some relief for our very wet
region.

&&

.AVIATION /06Z TAFS THROUGH 06Z FRIDAY/...
Issued at 101 AM CDT Thu Jul 4 2024

Patchy fog overnight expected to create MVFR/IFR visibility at
INL, HIB, and HYR. Showers and a few thunderstorms will build
northeastward this afternoon and evening. MVFR visibility
expected at BRD with the showers. Less confidence in reduced
visibility at HYR so kept VFR for now.

&&

.MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/...
Issued at 341 PM CDT Wed Jul 3 2024

Strong WSW winds today have stayed gusting right around 15-20 knots,
with occasional higher gusts observed. These strongest gusts are
right along shore, with buoys further in the lake showing much
calmer conditions. Winds and waves ramped up this morning but have
stayed fairly steady into the early afternoon per latest surface
station and buoy observations. Southwest winds should calm through
the evening, becoming northeasterly into Thursday. These northeast
winds are expected to be assisted by a lake breeze circulation and
increasing pressure gradient Thursday afternoon, and may become
quite gusty in the afternoon, especially at the head of the lake.
Current forecast ramped up afternoon winds to 15 knots, but hi-res
guidance shows there is a 20-40% chance of seeing winds 20-25 knots
tomorrow afternoon, particularly for the Twin Ports. Northeasterly
winds will continue into the end of the week, keeping conditions on
the bumpy side but currently below small craft condition criteria.
Some rain and embedded thunderstorms could be possible late Thursday
through the day Friday, most likely along the South Shore.

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...None.

&&

$$

DISCUSSION...Levens
AVIATION...Huyck
MARINE...Levens