Severe weather returned to Iowa late Monday into Tuesday morning. Interactive Radar | Weather AlertsSee the latest forecast here.Video above: Iowa farm fields flooding causing problems for farmersHere's what to know:Updated forecast for central IowaTuesday will be mostly sunny and windy at times. A stray shower or thunderstorm is possible, mainly later in the afternoon. Expect a high of 75 degrees Tuesday and Wednesday, both of which will have winds 10-15 mph with gusts up to 20-30 mph. Showers and storms in the evening, then partly cloudy overnight. Low around 50F. Winds NW at 10 to 15 mph. Tornado warning in south-central Iowa expires; severe thunderstorm warning continues east of metroA tornado warning that was in effect through 2 a.m. for parts of Marion, Mahaska and Jasper counties expired at that point. A severe thunderstorm warning is in effect until 3:15 a.m. for parts of Poweshiek, Monroe, Marshall, Davis, Wapello, Tama, Mahaska, Grundy and Jasper counties. Wind gusts up to 60 mph and penny-sized hail was possible, with the storm moving east at 40 mph. Damage to roofs, siding and trees is possible. » Best places to be in your home during a tornadoTornado watch for more than 3 dozen Iowa counties expires A tornado watch early Tuesday morning for 40 Iowa counties expired at 3 a.m.Counties included are Adair, Adams, Appanoose, Audubon, Boone, Buena Vista, Calhoun, Carroll, Cass, Cherokee, Clarke, Crawford, Dallas, Davis, Decatur, Greene, Guthrie, Hamilton, Humboldt, Ida, Jasper, Lucas, Madison, Mahaska, Marion, Marshall, Monroe, Plymouth, Pocahontas, Polk, Ringgold, Sac, Story, Taylor, Union, Wapello, Warren, Wayne, Webster and Woodbury counties. Flash flood warning in southwest IowaThere's a flash flood warning for parts of Page and Fremont counties in southwestern Iowa until 4 a.m. after thunderstorms produced heavy rain in the area. Some in the area saw 3 inches of rain or more late Monday into Tuesday.Flash flooding is possible in small creeks and streams, urban areas, highways, streets and underpasses, as well as other low-lying areas, according to the National Weather Service. Turn around, don't drown when encountering flooded roads, the weather service said. Be especially cautious at night when it is harder to recognize the dangers of flooding.Weather Aware: What’s the difference between a watch and a warning?KCCI ON SOCIAL MEDIA:Facebook | YouTube | Instagram | TwitterHere’s how to make sure your phone provides severe weather alertsWhen storms are in the forecast, you want to make sure your mobile phone settings allow for alerts that warn you of severe weather.The U.S. Homeland Security Department says to check your phone's settings and ensure you have "Government Alerts" or "Emergency Alert Messages" enabled.You can keep track of the weather wherever you are with the KCCI app: Apple | Google PlayWe'll send you weather alerts and you can track live radar right on your phone.Get the latest KCCI forecast hereKCCI partners with Red Cross to provide aid after devastating tornadoesKCCI is working with the American Red Cross to help provide relief for those affected by the devastating and deadly tornadoes that recently hit Iowa.Your gift will not only help with immediate needs like food and shelter, it will also put people on the road to recovery and guide communities as they better prepare for disasters.To donate, click the link here.More severe weather coverageWeather Aware: Tornado safety tipsWeather Aware: How to make sure your phone provides severe weather alertsWeather Aware: Why is a clear sky bad on severe weather days?Weather Aware: What's the difference between rain and thunderstorms Central Iowa tornado warning allowed to expireA tornado warning for northern Greene County, eastern Calhoun County and southwestern Webster County expired at 11:15 p.m. Monday. This was the last active tornado warning from this line of storms so far. Much of the state remains in a tornado watch and storms are continuing to make their way across Iowa throughout the night.A tornado watch is in effect until 3 a.m. Tuesday for much of Iowa.Counties included are Adair, Adams, Appanoose, Audubon, Boone, Buena Vista, Calhoun, Carroll, Cass, Cherokee, Clarke, Crawford, Dallas, Davis, Decatur, Greene, Guthrie, Hamilton, Humboldt, Ida, Jasper, Lucas, Madison, Mahaska, Marion, Marshall, Monroe, Pocahontas, Polk, Ringgold, Sac, Story, Taylor, Union, Wapello, Warren, Wayne and Webster counties. Hazards include possible tornadoes, ping-pong sized hail and wind gusts up to 75 mph.Severe weather outlookMore storms are on the way for Iowa this week, including some that could be severe.Here's what to know:A line of storms moved into western Iowa Monday eveningA few damaging wind gusts and isolated tornadoes are possibleWestern/southwest Iowa is the most likely location for severe stormsAreas of Iowa southwest of a line from Sioux City, over to Des Moines, and down to Ottumwa will be under Level 2 of 5 risk for severe storms from 8 p.m. Monday to 2 a.m. Tuesday. That means widespread severe weather is not expected, but a few storms could be strong at times. Several far southwest Iowa counties are in Level 3, meaning numerous severe storms are possible. Primary threats in that area includes damaging wind gusts and possible tornadoes.The most likely threats will be damaging wind gusts and possibly a spin-up tornado. We probably won't have lots of instability, which makes large hail less of a concern.FULL FORECAST: See the latest Storm Team 8 forecast hereOur storms began firing in Nebraska in mid-afternoon, then spread eastward to the Missouri River around 7-8 p.m. At this, these storms will likely merge into a line that comes into western Iowa, then approaches the I-35 corridor around 11 p.m. Once these storms travel into eastern Iowa after midnight, the severe threat wanes. Rainfall will also be less in eastern Iowa. Central/western Iowa should see a half-inch to an inch of rain Monday night, with some areas seeing up to about 2 inches. Farther east, amounts will be closer to a half-inch.