FloodZoneMap.org

Flash Flood — Hamilton, IA

Jun 22, 2007

A rather complex weather situation unfolded during the day on the 22nd. The situation was complicated by the convection that occurred during the previous night. An outflow boundary from the previous nights convection pushed south across the CWA, reaching the southern part by sunrise. This boundary combined with a quasi-stationary frontal boundary that was across the southern counties. The atmosphere became unstable quite rapidly during the late morning and early afternoon. Surface low press

Source: NOAA National Weather Service Storm Events Database (event 28308). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Hamilton, IA

This event is one of many recorded floods in Hamilton County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Hamilton County flood data →

More Flood Stories

Flash Flood1 death$50K damage

Hamilton, IA · Jun 7, 2008

Low pressure developed over Kansas with a strong southerly flow of very moist air streaming into Iowa ahead of it. Surface temperatures warmed into the 80s with dew point readings in the low to mid 70s.

Read the full account →
Flood$200K damage

Hamilton, IA · Mar 13, 2019

Reports from the 13h through the 19th in this entry. ||A relatively deep and widespread snowpack existed across the region during early to mid March.

Read the full account →
Flood$100K damage

Hamilton, IA · Sep 23, 2018

Heavy rainfall continued across portions of central and northern Iowa through mid to late September. This allowed rivers across the area to go back into flood through the latter portion of the month.

Read the full account →
Flash Flood$10K damage

Hamilton, IA · Jun 14, 2018

After a very brief reprieve from multiple days of activity, another round of storms greeted large parts of central Iowa during the very early morning hours of the 14th, through the rest of the morning, and into the afternoon.

Read the full account →