Enter any address in Logan County, Colorado to see its FEMA flood zone
Flash flooding from thunderstorms is the primary flood hazard in Logan County. In the last 30 years, NOAA Storm Events data shows 17 flash flood events compared to 5 general flood events. For example, a slow-moving thunderstorm caused flooding in Sterling on June 1, 2024. Another severe weather event on June 21, 2023, brought flash flooding to Logan County along with tornadoes and large hail.
Homeowners in Zone A, which has experienced the most NFIP claims (38 claims averaging $20,275), should pay particular attention to flood risk. These areas have seen an average water depth of 1.6 feet during flood events. Properties in Zone X, with 4 claims averaging $3,460, also face flood risk, though typically with less severe water depths. Residents in these identified zones should be aware of potential flood impacts.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
8 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Logan County, Colorado has recorded 22 flood-related events since 1996 according to NOAA's Storm Events Database, including 17 flash floods and 5 river or area floods. The county has received 12 federal disaster declarations, 8 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1965–2023)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms, Flooding, And Tornadoes | Flood | Jun 8, 2023 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Tornadoes, Flooding, Landslides, And Mudslides | Flood | May 4, 2015 |
| Severe Storms, Flooding, Landslides, And Mudslides | Flood | Sep 11, 2013 |
| Hurricane Katrina Evacuation | Coastal Storm | Aug 29, 2005 |
| Severe Winter Storms | Severe Storm | Apr 11, 2001 |
| Severe Storms, Heavy Rain, Flash Floods, Flooding, Mudslides | Flood | Jul 28, 1997 |
| Heavy Rains, Snowmelt And Flooding | Flood | May 23, 1973 |
| Severe Storms & Flooding | Flood | May 19, 1969 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jun 1, 2024 | 10.00K |
| Flash Flood | Jun 21, 2023 | 100.00K |
| Flood | Apr 27, 2021 | 0.00K |
| Flash Flood | May 27, 2019 | 0.00K |
| Flash Flood | Jul 27, 2017 | 20.00K |
| Flood | May 24, 2015 | 100.00K |
| Flash Flood | May 23, 2015 | 25.00K |
| Flood | May 9, 2015 | 200.00K |
| Flash Flood | May 9, 2015 | 25.00K |
| Flash Flood | Aug 7, 2014 | 10.00K |
Flash Flood — Jun 1, 2024
A slow moving thunderstorm produced up to golf ball size hail and flooding in the town of Sterling. A weaker storm to the east produced hail up to 1 inch in the Haxtun area.
Flash Flood — Jun 21, 2023
Long duration severe weather event across the northeast plains, and most of the Denver metropolitan area beginning during the early afternoon hours. Scores of tornadoes occurred across Washington and Logan counties. Several rounds of hail across the Denver metro, with ping pong ball sized hail in downtown, larger hail up to 2 inches in diameter at concert in Red Rocks Amphitheatre. In all,...
Flood — Apr 27, 2021
Severe thunderstorms developed across portions of Adams, Elbert, and Lincoln counties. Hail from quarter to ping pong ball size was observed. Near Limon and Messex, the hail completely covered the roadways. Two tornados also touched down briefly in Lincoln County but no damage was observed. Very heavy rain developed across the northeast plains. The heavy rain caused small stream flooding a...
Flash Flood — May 27, 2019
Severe thunderstorms across the northeast plains of Colorado produced eight short-lived tornadoes. One tornado touched down and caused minor damage to 20,000 bushel capacity grain bins. Ten of 12 grain bins were damaged; some by downed pipes that fell on them. The rest of the tornadoes touched down in open country. In addition, large hail ranging from quarter to tennis ball size was report...
Flash Flood — Jul 27, 2017
Heavy rain produced localized flash flooding southwest of Sterling and near Merino. Numerous reports of low-land flooding occurred in and around Merino. Water flooded, basements, businesses and a post office with around one inch of standing water. Rural dirt county roads were reportedly damaged by the runoff.
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Logan County, Colorado:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Logan County, Colorado that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.