Weather Alerts For Horicon, WI

Watch county notification for watch 109 National Weather Service Milwaukee/sullivan WI 234 PM CDT Tue Apr 14 2026 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Central and Eastern Iowa Northern Illinois Extreme Southeast Minnesota Southern Wisconsin Lake Michigan * Effective this Tuesday afternoon and evening from 230 PM until 1000 PM CDT. * Primary threats include... Several tornadoes and a couple intense tornadoes likely Widespread large hail and scattered very large hail events to 4 inches in diameter likely Scattered damaging winds likely with isolated significant gusts to 75 mph possible SUMMARY...Supercell thunderstorms will pose a threat for very large to giant hail this afternoon and evening as they track eastward, with the largest hailstones potentially reaching up to 3-4 inches in diameter. The threat for several tornadoes will increase later this afternoon and evening along a warm front, and any sustained supercell will be capable of producing a strong tornado. Otherwise, scattered to numerous severe/damaging winds may eventually occur as thunderstorms consolidate into one or more bowing clusters, with peak gusts up to 65-75 mph. The tornado watch area is approximately along and 75 statute miles north and south of a line from 60 miles west southwest of Waterloo IA to 20 miles north northeast of Milwaukee WI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 108... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 4 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 26035.

There is a Enhanced Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MIDWEST/SOUTHERN GREAT LAKES AND SOUTHERN/CENTRAL PLAINS THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE NORTHEAST SUMMARY Severe thunderstorms are expected this afternoon through tonight from the southern Plains into the Midwest. Large to giant hail, several tornadoes (some strong), and swaths of severe/damaging gusts are all likely, particularly from Iowa into the southern Great Lakes. 20Z Update A complex yet active severe weather day remains in the forecast for portions of the Midwest-OH Valley into the Southern Plains this afternoon into early tonight. While several lines were slightly adjusted to account for the latest guidance consensus, the following substantial changes and/or decisions were made: 1.) 30 percent wind probabilities were expanded southwestward into southwest and central OK to account for the possibility of more rapid upscale growth into one or more wind-producing MCSs or linear segments. 2.) Category 1/Marginal Risk probabilities for severe wind and hail were expanded west-southwest into NE along a frontal boundary to account for two possible scenarios. First, an isolated strong storm may develop within the next few hours along the boundary as a consequence of strong diurnal heating. Second, late tonight, there is low potential for gravity-wave associated convection on the immediate cool side of the frontal boundary, atop a stable boundary layer. 3.) Confidence is still too low for supercells across the Midwest to remain discrete for long periods of time, which would warrant a Categorical Moderate risk upgrade. Nonetheless, should a dominant supercell become sustained and discrete for at least a few hours, especially along the warm front over northeast IA into southern WI, a sustained and intense tornado will be possible. The rest of the forecast (see below) remains on track.

Pollen Index: 10.1 Pollen Level: high Predominant Pollen: Maple, Cedar/Juniper and Alder. The amount of pollen in the air for Wednesday will be falling in the moderate range. This change results in part from falling temperatures, rising humidity, and heavy rains in the morning and evening which tend to wash pollen out of the air. With this amount of reduction in pollen levels, tomorrow should be better for allergy sufferers.