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When… Today through noon Sunday. What… Winter Storm Warning for freezing rain along the I - 96 corridor and north. Additional ice accumulation of 0.25” - 0.50”. Winter Weather Advisory for freezing rain along I - 94 including Lenawee County. Ice accumulation of less than 0.25” Detroit, MI Weather Forecast Office Briefing issued April 14, 2018 5PM Winter Storm Warning Impacts… Hazardous driving conditions. Tree and power line damage.

Winter Storm Warning Detroit, MI - National Weather Service · US National Weather Service Detroit / Pontiac Michigan NWSDetroit Detroit, MI Briefing issued March 8, …

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Page 1: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

When… • Today through noon Sunday.

What… • Winter Storm Warning for freezing rain

along the I-96 corridor and north. Additional ice accumulation of 0.25”-0.50”.

• Winter Weather Advisory for freezing rain along I-94 including Lenawee County. Ice accumulation of less than 0.25”

Detroit, MI Weather Forecast Office Briefing issued April 14, 2018 – 5PM

Winter Storm Warning

Impacts… Hazardous driving conditions.

Tree and power line damage.

Page 2: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

Freezing Rain, Gusty Winds and Lakeshore Flooding… • Drizzle conditions possible through this evening leading to light

accumulations for areas with surface temperatures at freezing or below. Potentially as far south as the I-96 or I-94 corridor.

• A second round of heavier freezing rain is expected overnight through Sunday morning, extending as far south as the I-94 corridor. Scattered thunderstorms during the late night hours will cause brief intervals of intense freezing rain.

• Sleet and some snow may mix in north of M 46 today.

• Northeast winds 25 to 35 MPH, with gusts around 50+ MPH downwind of Saginaw Bay today.

• Strong winds area already causing significant flooding along the shoreline of Saginaw Bay, especially in Bay County and winds will continue overnight.

• Gusty east-northeast winds on Lake Erie will cause flooding along the shoreline of Lake Erie.

Detroit, MI Weather Forecast Office

Weekend Winter Storm

Overview

Page 3: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

Detroit, MI Weather Forecast Office

Today and through Tonight

Forecast Ice Accumulations

5 PM Sat– 2 AM Sunday 2 AM Sun – 8 AM Sun

Page 4: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

Detroit, MI Weather Forecast Office

Sunday

Forecast Ice Accumulations

8 AM Sun – 2 PM Sun After 2 PM

Page 5: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

Detroit, MI Weather Forecast Office

Storm Total

Forecast Ice Accumulations

5 PM today through 2 PM Sunday

Page 6: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

Text Box Annotation

Detroit, MI Weather Forecast Office For Detroit Metro

Ice Intensity Rate

Ice Intensity… • Light ice accumulations possible

from drizzle early in the night.

• Moderate confidence in 0.05” per hour rates for a couple hours in the morning.

Timing… • Start: ~2 am

• Peak: 4 am – 8 am

• End: 9 am

Page 7: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

Text Box Annotation

3pm 3pm

Detroit, MI Weather Forecast Office For Flint

Ice Intensity Rate

Ice Intensity… • Light ice accumulations possible

from drizzle early in the night.

• Moderate confidence in 0.05” per hour rates for a couple hours in the morning.

Timing… • Start: ~3 am

• Peak: 6 am - noon

• End: 2 pm

Page 8: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

Text Box Annotation

3pm 3pm

Detroit, MI Weather Forecast Office For Port Huron

Ice Intensity Rate

Ice Intensity… • {text}

Timing… • Start: 5 am

• Peak: 6 am – 10 am

• End: 11 am

Page 9: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

Text Box Annotation

3pm 3pm

Detroit, MI Weather Forecast Office For Tri-Cities

Ice Intensity Rate

Ice Intensity… • Light ice accumulations possible

from drizzle early in the night.

• Moderate confidence in 0.05” per hour rates for a couple hours in the morning.

Timing… • Start: 8 am

• Peak: 10 am – 2 pm

• End: 3 pm

Page 10: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

Text Box Annotation

3pm 3pm

Detroit, MI Weather Forecast Office For The Thumb

Ice Intensity Rate

Ice Intensity… • Light ice accumulations possible

from drizzle overnight.

• Moderate confidence in 0.05” per hour rates for a couple hours in the morning.

Timing… • Start: 8 am

• Peak: 10 am – 2 pm

• End: 3 pm

Page 11: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

Detroit

Flint

Saginaw

Detroit, MI Weather Forecast Office

Bad Axe, Flint, Saginaw

Temperatures Trends

Temperatures…

• Temperatures will continue to drop below freezing from north to south through this evening. Temps will rise above freezing Sunday morning and afternoon.

Page 12: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

weather.gov/dtx NWSDetroit

Detroit, MI Issued April 14, 2018 4:06 PM

Weather Forecast Office

Today and Tonight.

Gusty Winds and Lake Shore Flooding

• Northeast wind gusts 25 to 30 mph, with a few gusts up to 50 near Saginaw Bay and the tip of the Thumb. Winds will begin to decrease tomorrow morning.

• Winds may cause added stress to ice covered tree branches.

• Rising lake levels under strong onshore flow will likely result in some lakeshore flooding. Flooding may be significant in Bay County.

Strong Winds and Potential Lake Shore Flooding

Page 13: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

What To Expect… • Scattered rain and snow showers Monday and clearing by Tuesday. Northwest

winds 15 to 20 MPH with higher gusts.

• High temperatures mainly in the upper 30s and low 40s. Nighttime lows in the 20s.

Detroit, MI Weather Forecast Office

Cold and Breezy

After The Storm

Page 14: Winter Storm Warning Detroit, MI - National Weather Service ·  US National Weather Service Detroit / Pontiac Michigan  NWSDetroit Detroit, MI Briefing issued March 8, …

www.weather.gov/dtx

For Additional Information Winter Storm Page

https://www.weather.gov/dtx/LatestFlood

Local Hazards Page http://www.weather.gov/dtx/dtxhazards

Decision Support Page http://www.weather.gov/dtx/dss

US National Weather Service Detroit / Pontiac Michigan

NWSDetroit

Detroit, MI Weather Forecast Office Briefing issued April 14, 2018

Winter Storm Watch