Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.
Shaded areas are FEMA’s mapped flood hazard zones in and around Logan County, Kansas. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.
Flash flooding and general flooding from severe summer thunderstorms dominate the flood risk profile in Logan County, Kansas, with the NOAA Storm Events Database recording 46 flash flood events and 21 flood events over the last 30 years.
Recent weather patterns illustrate these localized hazards. For example, prolonged heavy rainfall in August 2021 north of Russell Springs caused water to flow deeply over Highway 25, requiring traffic to be diverted. Similarly, storms developing along an east-west boundary south of Interstate 70 produced flooding in Logan County by the morning of September 23, 2025.
Homeowners, real estate agents, and journalists should pay the closest attention to properties situated near low-lying areas, regional highways susceptible to overflowing runoff, and locations historically vulnerable to rapid accumulation from heavy seasonal rainfall.
Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.
22 NOAA storm reports from Logan County describe what happened, in the words of the forecasters who covered it. Read the Kansas flood stories →
14 federal disaster declarations since 2005.
| Disaster | Began |
|---|---|
| Severe Storms, Straight-line Winds, And Flooding | Jul 17, 2025 |
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | May 18, 2025 |
| Severe Winter Storm, Straight-line Winds, Flooding, And Wildfires | Mar 14, 2025 |
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Jun 26, 2024 |
| Severe Storms And Straight Line Winds | Dec 15, 2021 |
| Severe Winter Storm, Snowstorm, Straight-line Winds, And Flooding | Apr 28, 2017 |
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | May 19, 2011 |
| Severe Winter Storms And Snowstorm | Dec 22, 2009 |
Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.
67 since 1996: 46 flash floods and 21 river or area floods.
| Event | Date | Damage |
|---|---|---|
| Flood | Sep 23, 2025 | — |
| Flash Flood | Aug 12, 2021 | — |
| Flash Flood | May 26, 2019 | — |
| Flash Flood | Aug 13, 2019 | — |
| Flash Flood | Aug 11, 2019 | — |
| Flood | Sep 10, 2019 | — |
| Flash Flood | Sep 9, 2019 | — |
| Flash Flood | Sep 2, 2018 | — |
— = no damage estimate in the record. Source: NOAA Storm Events Database.
Flood · Sep 23, 2025. In the early afternoon of the 22nd, storms began developing off a east/west oriented boundary, south of I-70. The boundary soon filled with storms that produced hail up to 1.25 inches, 61 MPH winds, and flooding by the morning of the 23rd. The largest hail reported fell in Sharon Springs, the strongest wind gust was in southern Sherman County, and the flooding happened Logan County.
Flash Flood · Aug 12, 2021. During the afternoon strong to severe thunderstorms formed over Northwest Kansas. Wind gusts of 60 MPH were reported near Leoti. Later in the afternoon hail up to golf ball size was reported in the Angelus and Menlo area. Prolonged rainfall north of Russell Springs caused water to flow over Highway 25 that was deep enough traffic had to be diverted.
Flash Flood · May 26, 2019. Thunderstorms in northwest Kansas produced a tornado in Thomas County in addition to several reports of hail, strong winds, and flash flooding from heavy rains.
Flash Flood · Aug 13, 2019. Thunderstorms produce hail up to lime size, damaging winds, and flash flooding in northwest Kansas.
National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.
Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.
If a building in Logan County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.
Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.