#DTX #MIwx 132
WHUS73 KDTX 171956
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
356 PM EDT Tue Mar 17 2026

LHZ421-441>443-172100-
/O.CAN.KDTX.UP.W.0007.000000T0000Z-260317T2100Z/
/O.CAN.KDTX.SC.Y.0012.000000T0000Z-260317T2100Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Port Austin to Harbor Beach MI-
Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI-
356 PM EDT Tue Mar 17 2026

...HEAVY F https://mesonet.agron.iastate.edu/vtec/f/2026-O-CAN-KDTX-UP-W-0007_2026-03-17T19:56Z

KDTX Freezing Spray Warning #7

Harbor Beach to Port Sanilac MI, Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt to the US/Canadian border beyond 5 NM from shore, Port Austin to Harbor Beach MI, Port Sanilac to Port Huron MI, Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Lake Huron from Sturgeon Point to Alabaster MI 5NM off shore to US/Canadian border, Lake Huron from Presque Isle Lt. to Sturgeon Point MI 5NM off shore to US/Canadian border, Lake Huron from Port Austin to Harbor Beach 5NM Off Shore to the US/Canadian border, Lake Huron from Harbor Beach to Port Sanilac 5NM Off Shore to US/Canadian border, Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border

Iowa Environmental Mesonet

#DTX #MIwx 194
FXUS63 KDTX 171911
AFDDTX

Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
311 PM EDT Tue Mar 17 2026

.KEY MESSAGES...

- Scattered light snow showers and flurries through this evening as
arctic cold persists.

- Chance of light snow Wednesday. Little to no accumulation
expected.

- Warming conditions during the late week period, with additional
chances for light precipitation.

&&

.DISCUSSION...

Arctic airmass entrench https://mesonet.agron.iastate.edu/p.php?pid=202603171911-KDTX-FXUS63-AFDDTX

IEM :: AFD from NWS DTX

AFD issued by NWS DTX at 17 Mar 2026 19:11 UTC

#DTX #MIwx 959
FXUS63 KDTX 171703
AFDDTX

Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
103 PM EDT Tue Mar 17 2026

.KEY MESSAGES...

- Scattered light snow showers and flurries through this evening as
arctic cold persists.

- Chance of light snow Wednesday. Little to no accumulation
expected.

- Warming conditions during the late week period, with additional
chances for light precipitation.

&&

.AVIATION...

Breezy northwest flow con https://mesonet.agron.iastate.edu/p.php?pid=202603171703-KDTX-FXUS63-AFDDTX

IEM :: AFD from NWS DTX

AFD issued by NWS DTX at 17 Mar 2026 17:03 UTC

#DTX #MIwx 287
WHUS73 KDTX 171501
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
1101 AM EDT Tue Mar 17 2026

LEZ444-171615-
/O.CAN.KDTX.LO.Y.0009.000000T0000Z-260317T1800Z/
/O.EXP.KDTX.SC.Y.0012.000000T0000Z-260317T1500Z/
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
1101 AM EDT Tue Mar 17 2026

...LOW WATER ADVISORY IS CANCELLED...
...SMALL CRAFT ADVISORY HAS EXPIRED...

Water levels will continue to rise above https://mesonet.agron.iastate.edu/vtec/f/2026-O-CAN-KDTX-LO-Y-0009_2026-03-17T15:01Z

KDTX Low Water Advisory #9

Michigan Waters of Lake Erie from Detroit River to North Cape MI

Iowa Environmental Mesonet

#DTX #MIwx 287
WHUS73 KDTX 171501
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
1101 AM EDT Tue Mar 17 2026

LEZ444-171615-
/O.CAN.KDTX.LO.Y.0009.000000T0000Z-260317T1800Z/
/O.EXP.KDTX.SC.Y.0012.000000T0000Z-260317T1500Z/
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
1101 AM EDT Tue Mar 17 2026

...LOW WATER ADVISORY IS CANCELLED...
...SMALL CRAFT ADVISORY HAS EXPIRED...

Water levels will continue to rise above https://mesonet.agron.iastate.edu/vtec/f/2026-O-CON-KDTX-UP-W-0007_2026-03-17T15:01Z

KDTX Freezing Spray Warning #7

Harbor Beach to Port Sanilac MI, Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt to the US/Canadian border beyond 5 NM from shore, Port Austin to Harbor Beach MI, Port Sanilac to Port Huron MI, Lake Huron from Sturgeon Point to Alabaster MI 5NM off shore to US/Canadian border, Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Lake Huron from Presque Isle Lt. to Sturgeon Point MI 5NM off shore to US/Canadian border, Lake Huron from Port Austin to Harbor Beach 5NM Off Shore to the US/Canadian border, Lake Huron from Harbor Beach to Port Sanilac 5NM Off Shore to US/Canadian border, Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border

Iowa Environmental Mesonet

#DTX #MIwx 219
CDUS43 KDTX 171408
CLIDTW

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
149 AM EDT TUE MAR 17 2026

...................................

...THE DETROIT MI CLIMATE SUMMARY FOR MARCH 16 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2026

WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
https://mesonet.agron.iastate.edu/p.php?pid=202603170549-KDTX-CDUS43-CLIDTW

IEM :: CLI from NWS DTX

CLI issued by NWS DTW at 17 Mar 2026 05:49 UTC

#DTX #MIwx 685
WHUS73 KDTX 171355
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
955 AM EDT Tue Mar 17 2026

LHZ421-441>443-172100-
/O.CAN.KDTX.GL.W.0012.000000T0000Z-260317T1500Z/
/O.EXB.KDTX.SC.Y.0012.000000T0000Z-260317T2100Z/
/O.CON.KDTX.UP.W.0007.000000T0000Z-260317T2100Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Port Austin to Harbor Beach MI-
Harbor Beach to Port Sanilac MI-Port Sanilac to Port https://mesonet.agron.iastate.edu/vtec/f/2026-O-CON-KDTX-LO-Y-0009_2026-03-17T13:55Z

KDTX Low Water Advisory #9

Michigan Waters of Lake Erie from Detroit River to North Cape MI

Iowa Environmental Mesonet

#DTX #MIwx 685
WHUS73 KDTX 171355
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
955 AM EDT Tue Mar 17 2026

LHZ421-441>443-172100-
/O.CAN.KDTX.GL.W.0012.000000T0000Z-260317T1500Z/
/O.EXB.KDTX.SC.Y.0012.000000T0000Z-260317T2100Z/
/O.CON.KDTX.UP.W.0007.000000T0000Z-260317T2100Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Port Austin to Harbor Beach MI-
Harbor Beach to Port Sanilac MI-Port Sanilac to Port https://mesonet.agron.iastate.edu/vtec/f/2026-O-CON-KDTX-UP-W-0007_2026-03-17T13:55Z

KDTX Freezing Spray Warning #7

Harbor Beach to Port Sanilac MI, Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt to the US/Canadian border beyond 5 NM from shore, Lake Huron from Presque Isle Lt. to Sturgeon Point MI 5NM off shore to US/Canadian border, Port Austin to Harbor Beach MI, Port Sanilac to Port Huron MI, Lake Huron from Sturgeon Point to Alabaster MI 5NM off shore to US/Canadian border, Lake Huron from Port Austin to Harbor Beach 5NM Off Shore to the US/Canadian border, Lake Huron from Harbor Beach to Port Sanilac 5NM Off Shore to US/Canadian border, Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border, Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay

Iowa Environmental Mesonet

#DTX #MIwx 644
NOUS43 KDTX 171352
PNSDTX
MIZ047>049-053>055-060>063-068>070-075-076-082-083-180200-

Public Information Statement
National Weather Service Detroit/Pontiac MI
952 AM EDT Tue Mar 17 2026

...PUBLIC INFORMATION STATEMENT...

...A STATEWIDE TORNADO DRILL IS SCHEDULED FOR WEDNESDAY MARCH
18TH...

The National Weather Service Detroit/Pontiac MI will use NOAA
Weather Radio All Hazards to conduct a statewide tornado drill on
Wednesday March 18th. The Nationa https://mesonet.agron.iastate.edu/p.php?pid=202603171352-KDTX-NOUS43-PNSDTX

IEM :: PNS from NWS DTX

PNS issued by NWS DTX at 17 Mar 2026 13:52 UTC

#DTX #MIwx 555
WWUS83 KDTX 171319
SPSDTX

Special Weather Statement
National Weather Service Detroit/Pontiac MI
919 AM EDT Tue Mar 17 2026

MIZ068-069-075-076-082-083-171530-
Livingston-Oakland-Washtenaw-Wayne-Lenawee-Monroe-
Including the cities of Howell, Pontiac, Ann Arbor, Detroit,
Adrian, and Monroe
919 AM EDT Tue Mar 17 2026

...Snow showers lead to variable driving conditions this
morning...

Snow showers are ongoing across the area, with the most notable
impa https://mesonet.agron.iastate.edu/p.php?pid=202603171319-KDTX-WWUS83-SPSDTX

IEM :: SPS from NWS DTX

SPS issued by NWS DTX at 17 Mar 2026 13:19 UTC