Weather Alerts For Grantsburg, WI

# HEADLINE -------------------- RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF NORTHWEST WISCONSIN # DETAILS -------------------- AFFECTED AREA In Wisconsin, Douglas, Bayfield, Ashland, Iron, Burnett, Washburn and Sawyer. WINDS Southwest 10 to 20 mph with gusts up to 35 mph. RELATIVE HUMIDITY As low as 18 percent. IMPACTS Any fires that develop will spread rapidly. Outdoor burning is not recommended. ISSUED AT Friday, May 15, 2026 at 1:28 AM CDT ISSUED BY National Weather Service Duluth MN HEADER URGENT - FIRE WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. # AREAS AFFECTED -------------------- Ashland, Bayfield, Burnett, Douglas, Iron, Sawyer, Washburn

Pollen Index: 10.4 Pollen Level: high Predominant Pollen: Ash, Birch and Oak. Concentration of pollen grains in the air for Saturday will be greater than today's levels and extend further into the very high range. Since the weather has a major influence on pollen dispersal, this increase is due in part to higher temperatures and the lower dewpoint.