Marine Forecasts

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7 Day Forecast for Marine Location Near River Rouge, MI

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Area Discussion for - Detroit/Pontiac, MI

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FXUS63 KDTX 042328 AFDDTX

Area Forecast Discussion National Weather Service Detroit/Pontiac MI 628 PM EST Thu Mar 4 2021

AVIATION.

High pressure will provide VFR conditions throughout the forecast with just some cirrus possible on Friday. Northwest winds will settle below 10 knots tonight and increase to 10-15 knots in better mixing out Friday.

DTW THRESHOLD PROBABILITIES.

* None.

PREV DISCUSSION. Issued at 324 PM EST Thu Mar 4 2021

DISCUSSION .

Mid level northwest flow will continue to govern conditions across southeast Michigan over the next 72 hours, as the western expanse of height falls associated with a closed low over New Foundland remain fixated over the region. Coldest daytime conditions noted presently, as gradual height falls continue above prevailing low level north- northeast flow. A healthy radiational cooling environment will emerge tonight as lingering low stratus fades with the loss of daytime heating, offering an extended window of clear sky atop a diminishing gradient within encroaching surface ridging. Lows tonight mainly in the teens. Standard diurnal moderation of this colder resident thermal profile Friday given the high degree of insolation and no real advective process. This translates into highs right around average.

Strengthening low level anticylone maintained beneath prevailing northwest flow ensures benign weather conditions throughout the weekend period. Sunday the warmer day of the two, as a building upper height field supplements full insolation to net 5 to 7 degrees of warming across the lowest 900 mb. Window for meaningful warm air advection exists Monday depending on frontal timing and extent of associated cloud/pcpn potential tied to a northern stream shortwave projected to track through the northern great lakes. Regardless, the underlying pattern of generally higher upper heights with a transition toward mid level southwest flow suggets above average warmth will define conditions throughout much of next week. This pattern shift may also introduce a more energetic southern stream, offering greater precipitation potential by Wed-Thu.

MARINE .

A blocked upper air pattern over eastern North America keeps the persistent northwest flow in place through the late week as low pressure hovers over far eastern Canada. Wind speeds around 15 to 25 kt continue through tonight into early Friday which keeps wave activity elevated over the southern basin of Lake Huron. Small Craft Advisories remain in effect for the nearshore zones due to the waves. High pressure continues building into the northern and western Great Lakes tonight and strengthens the existing pressure gradient. Northwest gales subsequently become increasingly likely for northern/central Lake Huron on Friday afternoon and evening, and a Gale Warning has been issued. Wind strength then eases heading into the weekend as the high pressure drifts eastward. Dry conditions prevail through the period due to this high.

DTX WATCHES/WARNINGS/ADVISORIES. MI . NONE. Lake Huron . Small Craft Advisory until 4 PM EST Saturday for LHZ421-441>443.

Gale Warning from 2 PM Friday to midnight EST Friday night for LHZ361>363.

Lake St Clair . NONE. Michigan waters of Lake Erie . NONE.

AVIATION . DG DISCUSSION . MR MARINE . TF

You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit.

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
CLSM4 - St. Clair Shores, MI	18 mi	51 min	NNW 4.1 G 8	28°F			1026.1 hPa (+0.4)
AGCM4	38 mi	51 min		25°F	34°F		1025 hPa (+0.6)
THRO1 - 9063085 - Toledo, OH	44 mi	51 min	N 1.9 G 5.1	30°F			1024.5 hPa (+0.7)	14°F
CMPO1	49 mi	81 min	NNE 12 G 16	29°F

Wind History for Toledo, OH

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8 PM

9 PM

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3 AM

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5 AM

6 AM

7 AM

8 AM

9 AM

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Last 24hr

NW5 G8

NW7 G11

NW8 G12

NW8 G13

NW9 G12

NW7

NW4

NW6 G13

NW6

NW4 G7

NW9 G13

NW7 G13

N8

N7 G13

N6 G14

N4 G11

N8 G13

N7 G11

N6 G15

NW8 G17

NW8 G14

N8 G11

N2 G5

1 day ago

SW10 G13

SW8 G13

SW7 G14

SW5 G12

SW10 G14

SW9 G14

SW8 G14

SW10 G14

SW8 G14

SW8 G15

SW8 G13

SW11 G14

W9

W8 G12

W13 G17

W11 G15

W9 G12

W8 G12

W11 G14

NW14 G18

W9 G13

NW12 G17

NW12 G17

NW6 G10

2 days ago

NW8 G13

NW11 G14

NW7 G11

NW12 G15

NW9 G13

NW8 G13

NW7 G10

NW6

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NW1

SE2

S3

S6

S5

S4 G7

S7 G12

SW6 G10

SW6 G14

SW10 G16

SW11 G16

SW10 G15

SW10 G15

SW10 G14

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Detroit/Grosse Ile, Grosse Ile Airport, MI	12 mi	56 min	N 4	10.00 mi	Fair	29°F	12°F	48%	1025.4 hPa
Coleman A Young Municipal Airport, MI	13 mi	58 min	NNE 6	10.00 mi	Fair	29°F	12°F	49%	1026.4 hPa
Detroit, Detroit Metropolitan Wayne County Airport, MI	14 mi	58 min	N 7	10.00 mi	A Few Clouds	29°F	11°F	47%	1026.5 hPa
Troy, Oakland/Troy Airport, MI	21 mi	56 min	N 5	10.00 mi	Fair	28°F	11°F	48%	1026.1 hPa

Link to 5 minute data for KONZ

Wind History from ONZ (wind in knots)

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Last 24hr

N5

NW4

N7

NE7

N5

NE5

Calm

NW3

N6

NW5

NW7

N11

N11 G14

N9 G16

N11

N11 G17

N14 G17

N10 G16

N11 G18

N11

NW8

NE9

NE5

N4

1 day ago

SW9

SW7 G14

SW6

SW8

SW6

SW5

SW8

SW7

SW8

SW7

SW8

W6

SW7

SW7

W7

W8

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NW5

NW5

NW6

NW11

N8

N7

2 days ago

NW12 G16

N9

NW8

NW11

NW12

NW9

NW7

NW4

NW4

Calm

Calm

Calm

Calm

S7

S7

S8

S10

S12

S13

S17

SW14

SW9 G20

SW7

SW8

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Weather Map

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