Marine Weather and Tides
7/21/2018 Trying to make page Mobile Friendly
|Sunrise 7:38AM||Sunset 8:04PM||Tuesday September 18, 2018 5:23 PM EDT (21:23 UTC)||Moonrise 4:01PM||Moonset 12:09AM||Illumination 64%|
7 Day Forecast for Marine Location Near Grand Marais, MNHourly EDIT Help
Area Discussion for - Duluth, MN  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus63 kdlh 182042|
area forecast discussion
national weather service duluth mn
342 pm cdt Tue sep 18 2018
Short term (this evening through Wednesday)
issued at 342 pm cdt Tue sep 18 2018
at 330 pm, cloudy skies prevailed across much of the region. The
exception was northern koochiching and northwest saint louis
county, which saw sunny skies break out this afternoon.
Temperatures ranged from the upper 40s at the grand marais
airport, to the 50s to lower 60s elsewhere. Winds were northeast
across the entire region. The drizzle from earlier today seems to
have abated across the area, as ceilings rose.
The focus for tonight will definitely be on the potential for
precipitation overnight. The next batch of precipitation should
move northward during the latter half of the night, as an intense
llj redevelops throughout the plains. Will continue to increase
pop's across the south especially, with little precipitation
expected to reach north of the highway 2 corridor overnight.
The focus by Wednesday will be in the southeast half of the cwa,
with up to a quarter inch of rainfall expected during the day.
Portions of the southeast could see around 0.35 inch during the
day Wednesday. Gusty northeast winds will continue across the area
with a considerable amount of cloud cover.
Long term (Wednesday night through Tuesday)
issued at 342 pm cdt Tue sep 18 2018
an active fall weather pattern settles in late this week into next
week with a few chances for rainfall and seasonable temperatures.
Primary weather concern for the long-term forecast is heavy rainfall
expected Wednesday night through Friday morning.
On the synoptic scale, by mid-week a broad mid upper level ridge
will be building over the southeast towards the carolinas as a mid-
level longwave trough tracks east across the rockies and into the
great plains. A surface low will deepen over eastern colorado as a
result of the falling heights as the mid-level trough approaches,
with the surface low tracking northeast towards the upper great
lakes late-week. As this surface low tracks towards the upper
midwest, southerly low level flow will increase the low level
moisture resulting in deep moisture in place when the strong broad-
scale lift from the approaching mid-level trough reaches the region.
Rain, heavy at times, is expected as the low approaches and moves
across central mn into northern wi, with the heaviest rainfall rates
Thursday afternoon. While flash flooding is not anticipated at this
point, some minor ponding is possible and rivers will rise. In
addition, this fall storm will go on a near-perfect track for
producing strong easterly winds across western lake superior, and
while the surface low will not be unusually strong (falling to|
around 994 mb over central lake superior Thursday night), it may be
the first storm of the fall to produce gales on lake superior.
The low exits to the east and rain gradually ends Friday morning as
a cool area of high pressure builds in from the west. The surface
high will be over the upper midwest Friday night, and with clear
skies temperatures will fall to near the freezing mark in some
spots. The mid upper level pattern across north america becomes more
zonal, promoting a number of fast-moving mid-level shortwave troughs
to track across the region late in the weekend into next week. A
chance for light rain Saturday night into Sunday morning with a weak
front, but for the most part the forecast is now trending towards a
mostly dry and seasonable weekend.
Monday into Tuesday another similar set-up to this Wed thurs
rainfall, with the possibility for heavy rainfall amounts and strong
Temperatures seasonable throughout the long term period with highs
in the 50s to 60s and lows in the 30s to 40s. Lows coldest Friday
night when a frost is possible away from lake superior, but
otherwise no frosts or hard freezes on the horizon.
Aviation (for the 18z tafs through 18z Wednesday afternoon)
issued at 1229 pm cdt Tue sep 18 2018
MVFR to ifr ceilings across the region will briefly improve toVFR
late this afternoon into the early evening as some of the stratus
breaks up, but then conditions will deteriorate to ifr late
tonight with ceilings down to lifr possible at dlh. Some
fog drizzle is possible reducing visibility late tonight through
Wednesday, then rain showers will spread from south to north
through the day Wednesday, most likely to impact brd and hyr in
the Wednesday morning hours. Winds becoming light variable
overnight at less than 5 knots, then easterly at 5 to 10 knots
Wednesday, strongest at dlh where gusts to 15 knots are possible
Preliminary point temps pops
Dlh 49 59 51 57 30 50 40 100
inl 42 62 44 59 10 20 10 50
brd 49 62 52 60 40 60 40 90
hyr 49 61 54 65 50 60 70 100
asx 47 59 52 61 30 60 60 100
Dlh watches warnings advisories
Wi... Beach hazards statement until 8 pm cdt this evening for wiz001.
Mn... Beach hazards statement until 8 pm cdt this evening for mnz037.
Ls... Small craft advisory until 4 pm cdt this afternoon for lsz144-
Short term... Dap
long term... Jjm
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|KGNA||26 mi||28 min||2.9||55°F||1017.5 hPa||48°F|
|GD5 - 9099090 - Grand Marais, MN||26 mi||42 min||54°F||57°F||1017.3 hPa||51°F|
|ROAM4 - Rock of Ages, MI||30 mi||24 min||NE 8.9 G 9.9||55°F||1019.2 hPa (-1.4)|
|45006 - W SUPERIOR 48NM North of Ironwood, MI||37 mi||34 min||E 7.8 G 12||54°F||62°F||2 ft||1017.2 hPa (-1.1)|
|DISW3 - Devils Island, WI||71 mi||24 min||ESE 11 G 12||55°F||1017.3 hPa (-1.0)||50°F|
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Grand Marais, The Bay of Grand Marais, MN||26 mi||28 min||Var 3||mi||55°F||48°F||77%||1017.5 hPa|
Wind History from GNA (wind in knots)
|1 day ago||E||NE||NE||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||W||W||W||SW|
|2 days ago||NE||E||NE||NE|
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Wind Forecast for Duluth, MN (17,4,5,8)(on/off)  Help
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