One product issued by NWS for: West Branch IA
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 941 PM CDT Fri Jun 21 2024 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-230245- Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson- Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson- Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll- Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson- Warren-Hancock-McDonough-Scotland-Clark- 941 PM CDT Fri Jun 21 2024 This Hazardous Weather Outlook is for portions of north central Illinois...northwest Illinois...west central Illinois...east central Iowa...northeast Iowa...southeast Iowa and northeast Missouri. .DAY ONE...TONIGHT Thunderstorms are expected mainly north of Interstate 80 overnight but the severe risk is very low. Storms north of Highway 30 will have the potential to produce rainfall rates of 1 to 2 inches per hour. A flood watch is in effect for the Highway 20 corridor and from Benton east to Jackson counties. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY Hot and humid conditions will continue Saturday, especially along and south of Interstate 80 with heat indices of 95 to 100 degrees possible. A cold front will move through the area Saturday afternoon and evening, leading to increasing chances of strong to severe thunderstorms. The main threat will be damaging wind gusts, with large hail and isolated tornadoes as secondary threats. High rainfall rates and slow moving storms could lead to localized flash flooding, especially in urban and poorly drained areas. Thunderstorm chances then return for Tuesday and Tuesday night. .SPOTTER INFORMATION STATEMENT... Rainfall reports over 1 inch will be appreciated. GENERAL STORM MOTION OF THE DAY:East northeast at 20 mph. $$