Weather & Alerts

000
FLUS43 KDTX 182211
HWODTX

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
611 PM EDT Sat Jul 18 2026

MIZ047>049-053>055-060>063-068>070-075-076-082-083-192215-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
611 PM EDT Sat Jul 18 2026

This hazardous weather outlook is for southeast Michigan.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

There is a chance of thunderstorms Monday night and Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

$$

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-192215-
Lake St Clair-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM
off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw
Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI-
Port Sanilac to Port Huron MI-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
611 PM EDT Sat Jul 18 2026

This hazardous weather outlook is for portions of Lake Erie, Lake
Huron and Lake St Clair.

.DAY ONE...Tonight

Small craft advisories are in effect for the Lake Huron nearshore
areas tonight. Please refer to the latest nearshore marine forecast
for details. 

.DAYS TWO THROUGH SEVEN...Sunday through Friday

There is a chance of thunderstorms Monday night and Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

$$

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

SC

The Air Quality Alert for today - Saturday July 18th - has been
cancelled for the following counties: Shiawassee, Genesee, Lapeer,
St. Clair, Livingston, Oakland, Macomb, Washtenaw, Wayne, Lenawee,
and Monroe.

The Michigan Department of Environment, Great Lakes, and Energy
(EGLE) has issued an Air Quality Alert for July 19, 2026, for
elevated levels of fine particulate due to wildfire smoke. On Sunday
concentrations will range from USG across the lower peninsula to
Unhealthy in the upper peninsula.

Sunday, July 19, 2026, will be a Statewide Air Quality Alert

Smoke has improved across the southern portion of Michigan early
Saturday; however, another plume is forecast to track through the
state Saturday, lasting into Sunday. The upper peninsula will be most
affected by the smoke on Saturday with fine particulate levels
deteriorating from north to south through Saturday. Concentrations
will be high enough across northern areas to warrant an Air Quality
Alert for Saturday, and by Sunday levels will be high enough to
warrant another statewide Alert. With smoke lingering across the
state, ozone also has the potential to increase quickly.

It is recommended that, when possible, you avoid strenuous outdoor
activities, especially those with heart disease and respiratory
conditions like asthma. Watch for symptoms including wheezing,
coughing, chest tightness, dizziness, or burning in nose, throat, and
eyes. You can help reduce air pollution by limiting activities, such
as:
- outdoor burning;
- use of residential wood burning devices.

Tips for households:
- Keep windows closed overnight to prevent smoke from getting indoors
and, if possible, run central air conditioning with MERV-13 or
higher rated filters.

For up-to-date air quality data for Michigan visit the MiAir site:
Michigan.gov/MiAir

For up-to-date air quality data nationally visit EPAs Air Now site:
AirNow.gov

For further health information, please see MDHHS Wildfire Smoke and
Your Health site:
https://www.michigan.gov/mdhhs/safety-injury-prev/environmental-
health/your-health-and-wildfire-smoke

The alert is in effect for the following Michigan counties...

Shiawassee...Genesee...Lapeer...St. Clair...Livingston...Oakland...
Macomb...Washtenaw...Wayne...Lenawee and Monroe.