Weather Alerts For Yorkville, WI

# HEADLINE -------------------- FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY MORNING # DETAILS -------------------- WHAT Flash flooding caused by excessive rainfall continues to be possible. WHERE Portions of east central, south central, and southeast Wisconsin, including the following counties, in east central Wisconsin, Fond du Lac and Sheboygan. In south central Wisconsin, Dane, Green, Green Lake, Iowa, Lafayette, Marquette and Rock. In southeast Wisconsin, Dodge, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington and Waukesha. WHEN Through Saturday morning. IMPACTS Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Extensive street flooding and flooding of creeks and rivers are possible. Area creeks and streams are running high and could flood with more heavy rain. ADDITIONAL DETAILS - Flash flooding caused by excessive rainfall on a saturated is possible. An additional 0.50 to 1.25 inches of rain is expected, with locally higher amounts to 2.00 inches possible. - http://www.weather.gov/safety/flood ISSUED AT Friday, April 17, 2026 at 5:15 PM CDT ISSUED BY National Weather Service Milwaukee/Sullivan WI HEADER Flood Watch # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. # AREAS AFFECTED -------------------- Ozaukee, Rock, Dane, Dodge, Fond du Lac, Green, Green Lake, Iowa, Jefferson, Kenosha, Lafayette, Marquette, Milwaukee, Racine, Sheboygan, Walworth, Washington, Waukesha Including the cities of Blanchardville, Kenosha, Fort Atkinson, Montello, Jefferson, Hartford, Argyle, Brodhead, Westfield, Grafton, Markesan, Lake Geneva, Waupun, Beaver Dam, Barneveld, Cedarburg, Berlin, Janesville, Menomonee Falls, Delavan, Howards Grove, Watertown, Endeavor, West Bend, Whitewater, Shullsburg, Neshkoro, Beloit, Oxford, Racine, Benton, Brookfield, Mequon, Princeton, Darlington, Sheboygan Falls, Dodgeville, Mayville, Milwaukee, Belmont, Muskego, East Troy, Germantown, Oostburg, New Berlin, Fond Du Lac, Madison, Mineral Point, Elkhorn, Plymouth, Waukesha, and Monroe

# SUMMARY -------------------- - Tornado Watch for portions of Central and Eastern Iowa Northern and West-Central Illinois Southeast Minnesota Far Northeast Missouri Central and Southern Wisconsin - Effective this Friday afternoon and evening from 1240 PM until 800 PM CDT. - Primary threats include... A few tornadoes likely with a couple intense tornadoes possible Widespread large hail and isolated very large hail events to 3.5 inches in diameter likely Scattered damaging wind gusts to 70 mph likely # DETAILS -------------------- SUMMARY - A very moist and unstable airmass exists ahead of a cold front progressing eastward/southeastward across the region. Thunderstorm development is anticipated within the warm sector ahead of the front, where discrete supercells capable of all severe hazards, including very large hail and strong to intense tornadoes, are possible. Thunderstorm development is possible along the front as well, with large hail and strong gusts the primary risk with these storms. - The tornado watch area is approximately along and 110 statute miles north and south of a line from 55 miles north northwest of Des Moines IA to 55 miles east of Madison WI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). AVIATION Tornadoes and a few severe thunderstorms with hail surface and aloft to 3.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26035. ISSUED AT The NWS Storm Prediction Center has issued a ISSUED BY 1242 PM CDT Fri Apr 17 2026 HEADER Watch county notification for watch 129 | National Weather Service Milwaukee/sullivan WI # 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.

Closest strike: 3.71 miles Stay Alert! Remain in a safe area until there has been no lightning within 10 miles of this location for 30 minutes. Please be aware that lightning activity can remain high even when a storm is moving away from your location. Even if rain has stopped, do not leave your safe area until WeatherBug indicates that lightning is more than 10 miles away from this selected location. IF OUTDOORS Avoid water, high ground, and open spaces. Avoid all metal objects including electric wires, fences, and machinery. Find a safe area in a building or in a fully enclosed vehicle with the windows completely shut. Unsafe places include underneath canopies, small picnic or rain shelters, convertibles, or near trees. IF INDOORS Avoid water and stay away from doors and windows. Avoid using a hard line telephone. Take off headphones. Turn off, unplug, and stay away from appliances, computers, power tools, and TV sets. Lightning may strike exterior electric and phone lines, inducing shocks to inside equipment.

There is a Slight 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 A MODERATE RISK OF SEVERE THUNDERSTORMS FROM FAR NORTHWEST OKLAHOMA THROUGH CENTRAL AND EASTERN KANSAS INTO WEST-CENTRAL MISSOURI SUMMARY Numerous severe thunderstorms are likely this afternoon into tonight across parts of the Upper Midwest southward across the lower Missouri Valley and central/southern Great Plains. Initially this may be accompanied by a risk for large to giant hail and a few strong tornadoes, before severe wind gusts of 60 to 90 mph become the most prominent hazard by this evening. 20Z Update Severe probabilities have been adjusted to account for progression of the cold front this afternoon. The remainder of the forecast is unchanged. See MD 475 for short-term details of evolving tornado risk along the Illinois/Wisconsin border.

Pollen Index: 10.1 Pollen Level: high Predominant Pollen: Maple, Cedar/Juniper and Alder. The quantity of pollen grains in the air for Saturday will be falling in the moderate range. The cause for the falling pollen levels is falling temperatures and heavy rains in the morning and evening which tend to wash pollen out of the air. Relief is in sight.