After a round of showers this afternoon, the sun has re-emerged and radar shows little of concern locally. We can’t rule out a pop-up shower into the evening, but it’s mostly quiet, if a bit humid. Wednesday looks great overall, with slightly lower humidity than today and lots of sunshine. The storm risk holds off until late Wednesday night.
Through Tonight: Partly cloudy and humid this evening, with a 20 percent chance of a shower. After dark, the shower chances evaporate. Overnight lows range from near 60 in our cooler suburbs to the mid-to-upper 60s downtown. Light winds from the southwest.
Tomorrow (Wednesday): A good-looking day. Skies are mostly sunny with slightly lower humidity than today. Highs reach the mid-to-upper 80s with winds from the northwest around 10 mph.
Pollen: Tree pollen is in the MODERATE range at 33.55 grains/cubic meter. Grass pollen is MODERATE (NAB range) at 15.34 grains/cubic meter, which is in the high range for local area grass counts. Weeds counts are LOW, and mold counts are HIGH.
High risk of severe weather/derecho in Iowa and Nebraska: The National Weather Service Storm Prediction Center has issued a rare “high risk” outlook for severe thunderstorms in parts of Iowa and Nebraska, including Omaha and Des Moines. It is expecting very large hail (exceeding 2-2.5 inches in diameter – baseball size), destructive straight line winds (80-90 mph gusts are possible) and the potential for strong tornadoes in this zone. A dangerous bow-shaped complex of thunderstorms (regional radar) in eastern Nebraska will propagate eastward into Iowa and may grow into a derecho as the evening wears on.
There is a 60 percent chance of damaging winds with 25 miles of a point in/close to the high risk area.