Henry County
Population 18,394 (2025) 562 sq mi
Henry County has recorded 39 tornadoes since 1950, 41st most of 67 counties in Alabama; the most recent was on December 10, 2023.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths since 195039
- Tropical cyclone tracks within 100 miles since 1851, wider where stronger69
At a glance
The record for Henry County in eight numbers. Each links to its section below.
Strongest tornado
F3
January 13, 1972, 16.8 mile path
Strongest tropical cyclone
Cat. 3
Hurricane Michael, 2018, 23.8 miles away
Tornadoes
About one every 1.9 years since 1950, 2 of them rated F3/EF3 or stronger.
Strongest
January 13, 1972
F3, 16.8 mile path
200 yards wide.
Deadliest
November 5, 2002
1 killed, F2
20 injured along the whole path.
Most recent
Sunday, December 10, 2023
EF0, 8.0 mile path
3 years ago.
Every recorded tornado
| Dec 10, 2023 | EF0 | 8.0 | 0 | 0 |
| Jun 14, 2023 | EF1 | 2.1 | 0 | 0 |
| Jan 12, 2023 | EF1 | 7.1 | 0 | 0 |
| Apr 5, 2022 | EF0 | 2.8 | 0 | 0 |
| Apr 24, 2021 | EF1 | 4.1 | 2 | 0 |
| Mar 18, 2021 | EF0 | 2.1 | 0 | 0 |
| Apr 19, 2020 | EF1 | 6.5 | 0 | 0 |
| Apr 19, 2020 | EF1 | 1.5 | 0 | 0 |
| Apr 19, 2020 | EF2 | 5.2 | 0 | 1 |
| Apr 19, 2020 | EF1 | 24.4 | 0 | 0 |
| Mar 3, 2019 | EF0 | 10.8 | 0 | 0 |
| Jan 4, 2019 | EF0 | 0.1 | 0 | 0 |
| Apr 5, 2017 | EF2 | 10.4 | 0 | 0 |
| Jan 22, 2017 | EF1 | 5.5 | 0 | 0 |
| Feb 23, 2016 | EF1 | 0.5 | 0 | 0 |
| Feb 23, 2016 | EF0 | 0.4 | 0 | 0 |
| Feb 23, 2016 | EF1 | 1.1 | 0 | 0 |
| Apr 19, 2015 | EF1 | 2.1 | 0 | 0 |
| Jan 4, 2015 | EF0 | 0.6 | 0 | 0 |
| Feb 1, 2011 | EF0 | 1.6 | 0 | 0 |
| Oct 8, 2008 | EF0 | 0.4 | 0 | 0 |
| Mar 1, 2007 | EF1 | 30.8 | 2 | 0 |
| Nov 15, 2006 | F1 | 3.6 | 0 | 0 |
| Jan 13, 2006 | F0 | 0.2 | 0 | 0 |
| Dec 24, 2002 | F1 | 33.0 | 10 | 0 |
| Nov 5, 2002 | F2 | 6.0 | 20 | 1 |
| Dec 16, 2000 | F2 | 29.0 | 0 | 0 |
| Sep 28, 1998 | F0 | 0.5 | 0 | 0 |
| Jan 5, 1997 | F2 | 6.0 | 0 | 0 |
| Nov 7, 1995 | F0 | 0.1 | 0 | 0 |
| Nov 4, 1992 | F1 | 5.0 | 0 | 0 |
| Apr 8, 1974 | F2 | 0.1 | 0 | 0 |
| Dec 29, 1973 | F3 | 15.0 | 2 | 0 |
| Jan 13, 1972 | F3 | 16.8 | 2 | 0 |
| Jan 5, 1962 | F1 | 5.1 | 0 | 0 |
| May 10, 1957 | F1 | 0.1 | 0 | 0 |
| Mar 29, 1954 | F2 | 2.5 | 0 | 0 |
| Dec 6, 1953 | F2 | 2.0 | 1 | 0 |
| Dec 6, 1953 | F1 | 0.1 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Henry County: 2.
- Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.
Storm Prediction Center severe weather database, 1950 to 2025.
Hurricanes and tropical storms
32 passed within 50 miles since 1851; 5 at hurricane strength, 1 as major hurricanes.
Strongest within 50 miles
October 10, 2018
Michael, Category 3
23.8 miles at closest approach, winds near 113 mph.
Most recent
September 9, 2021
Mindy, Tropical storm
87.4 miles at closest approach.
Every storm within 100 miles
| Mindy | 2021 | 87.4 | Tropical storm |
| Fred | 2021 | 0.0 | Tropical storm |
| Nestor | 2019 | 42.0 | Post-tropical |
| Michael | 2018 | 23.8 | Category 3 |
| Hermine | 2016 | 90.7 | Tropical storm |
| Claudette | 2009 | 89.9 | Tropical storm |
| Fay | 2008 | 63.2 | Tropical storm |
| Jeanne | 2004 | 71.7 | Tropical storm |
| Barry | 2001 | 71.3 | Tropical storm |
| Earl | 1998 | 41.8 | Tropical storm |
| Opal | 1995 | 69.1 | Category 1 |
| Allison | 1995 | 87.1 | Tropical storm |
| Kate | 1985 | 55.9 | Category 1 |
| Juan | 1985 | 93.3 | Tropical storm |
| Eloise | 1975 | 35.4 | Category 2 |
| Agnes | 1972 | 22.3 | Tropical storm |
| Alma | 1966 | 90.0 | Tropical storm |
| Unnamed | 1965 | 0.0 | Tropical storm |
| Hilda | 1964 | 40.8 | Post-tropical |
| Dora | 1964 | 26.7 | Tropical storm |
| Unnamed | 1957 | 97.2 | Tropical storm |
| Flossy | 1956 | 24.0 | Tropical storm |
| Florence | 1953 | 13.2 | Tropical storm |
| Unnamed | 1941 | 52.1 | Tropical storm |
| Unnamed | 1939 | 86.0 | Category 1 |
| Unnamed | 1937 | 40.2 | Tropical storm |
| Unnamed | 1936 | 93.1 | Category 1 |
| Unnamed | 1929 | 45.4 | Tropical storm |
| Unnamed | 1928 | 1.5 | Tropical storm |
| Unnamed | 1928 | 40.8 | Tropical storm |
| Unnamed | 1924 | 89.7 | Tropical storm |
| Unnamed | 1917 | 0.0 | Tropical storm |
| Unnamed | 1915 | 0.0 | Tropical storm |
| Unnamed | 1914 | 13.8 | Tropical storm |
| Unnamed | 1912 | 95.6 | Tropical storm |
| Unnamed | 1907 | 49.4 | Tropical storm |
| Unnamed | 1907 | 97.3 | Post-tropical |
| Unnamed | 1907 | 58.3 | Tropical storm |
| Unnamed | 1906 | 14.4 | Tropical storm |
| Unnamed | 1903 | 31.5 | Tropical storm |
| Unnamed | 1902 | 52.1 | Tropical storm |
| Unnamed | 1901 | 44.8 | Tropical storm |
| Unnamed | 1901 | 0.0 | Tropical storm |
| Unnamed | 1899 | 21.3 | Tropical storm |
| Unnamed | 1898 | 84.5 | Tropical storm |
| Unnamed | 1898 | 69.8 | Tropical storm |
| Unnamed | 1898 | 63.8 | Tropical storm |
| Unnamed | 1896 | 0.0 | Tropical storm |
| Unnamed | 1894 | 47.9 | Category 2 |
| Unnamed | 1893 | 59.7 | Tropical storm |
| Unnamed | 1889 | 6.5 | Tropical storm |
| Unnamed | 1887 | 19.7 | Tropical storm |
| Unnamed | 1886 | 74.1 | Category 1 |
| Unnamed | 1886 | 75.1 | Category 1 |
| Unnamed | 1885 | 80.6 | Tropical storm |
| Unnamed | 1885 | 66.2 | Tropical storm |
| Unnamed | 1882 | 4.0 | Tropical storm |
| Unnamed | 1881 | 28.1 | Tropical storm |
| Unnamed | 1880 | 84.0 | Tropical storm |
| Unnamed | 1879 | 90.7 | Tropical storm |
| Unnamed | 1878 | 79.0 | Tropical storm |
| Unnamed | 1877 | 54.6 | Category 1 |
| Unnamed | 1877 | 39.9 | Tropical storm |
| Unnamed | 1875 | 50.9 | Tropical storm |
| Unnamed | 1873 | 99.5 | Category 1 |
| Unnamed | 1868 | 81.9 | Tropical storm |
| Unnamed | 1860 | 0.0 | Tropical storm |
| Unnamed | 1859 | 62.0 | Tropical storm |
| Unnamed | 1856 | 22.3 | Category 1 |
| Unnamed | 1852 | 89.9 | Category 1 |
| Unnamed | 1852 | 57.1 | Tropical storm |
| Unnamed | 1851 | 28.5 | Category 2 |
- Tropical storms and hurricanes (34 kt or more, still tropical) at closest approach. Post-tropical remnants with gale-force winds are listed but not counted. Direct: track within 50 miles; near: within 100 miles. Distance is measured to the county boundary for counties and to the city centre for cities, using positions interpolated hourly between HURDAT2 fixes.
National Hurricane Center HURDAT2, 1851 to 2025.
Wildfire and smoke
No large wildfire has been mapped here since satellite mapping began in 1984.
Smoke overhead
Smokiest year
2023: 35 days
Heavy smoke on 3 days in 2025, the most of any year.
Last 10 years
9.2 days a year
Medium or heavy smoke, 2016 to 2025.
2025
8 days
Medium or heavy smoke. 23 so far in 2026.
- A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.
NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.
Floods and flood insurance
19 federal flood insurance claims since 1990, with $467,000 paid.
Most claims in one year
1998: 7 claims
$37,000 paid.
2nd most
1994: 5 claims
$117,000 paid.
Claims by ZIP code
| 36310 | 7 | $42,000 |
| 36319 | 7 | $119,000 |
| 36345 | 5 | $306,000 |
Flood events since 1996
- Flash Flood18
- Flood3
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.
River crests
Most severe crest
March 17, 1929
Chattahoochee River at W.F. George Lock and Dam, 158.50 ft
24.50 feet above the 134.0 ft flood stage; moderate flooding by today’s categories.
Most recent moderate or major crest
December 26, 2015
Chattahoochee River at W.F. George Lock and Dam, 150.44 ft
Moderate flooding.
River gauges
| Chattahoochee River at W.F. George Lock and Dam | 134.0 | 158.50 ft | 0 |
- Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.
NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.
Drought
In severe drought or worse for 113 of 1,581 months since 1895 (7%); the longest spell lasted 26 months.
113
Months in severe drought or worse since 1895
25
Months in extreme drought
7%
Share of all months, severe or worse
47
Drought reports to the Weather Service since 1996
Lowest reading
August 2000
−5.54, extreme drought
Longest severe spell
26 months
July 1954 to August 1956.
Latest month
September 2026
−1.57, mild drought
Last severe month: April 2026.
- The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.
NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.
Earthquakes
No earthquake of magnitude 2.5 or more is recorded within 50 miles of the county in the USGS catalogue, which begins in 1900.
Severe weather and other events
417 events in the National Weather Service record, 358 of them since 1996.
17
Hail reports, 1 inch or larger
1
Hail, 2 inches or larger
189
Damaging gusts, 58 mph+
6
Winter weather events since 1996
6
Heat events since 1996
2
Cold events since 1996
Largest hail
June 14, 2023
2.75 inches
Strongest measured or estimated gust
March 9, 2011
75 mph
More event types since 1996
| Lightning | 2 | 0 |
Costliest events since 1996
- Mar 1, 2007Tornado$11.0 million
National Weather Service narrative
After the EF-1 tornado crossed into western Henry County from eastern Dale County, it traveled northeast causing sporadic tree damage along County Roads 7 and 40. It then tore through the Bethlehem community, and damaged 51 mobile homes and destroyed 28 others. Two persons were injured when the tornado damaged their mobile home. The tornado overturned a semi on State Road 10 before lifting. The tornado descended two miles southwest of the community of Otho along County Road 97. It destroyed 14 homes and damaged 27 others in Otho. Numerous trees and utility poles were also blown down there and in the Stonebridge subdivision. The tornado exited the northeast part of the county at…
- Mar 8, 1998Flood, Henry$5.0 million
National Weather Service narrative
An intense Gulf storm deposited up to 14 inches of rain across southeast Alabama on March 6-8. Houston, Dale, and Geneva counties were declared federal disaster areas. In Geneva County, runoff from torrential rains in Coffee and Dale counties pushed the Chotawhatchee River out of its banks. Resultant flooding the week of March 8 damaged 85 homes, washed out many of the county roads and closed State Highway 27 south from Geneva. An estimated 300 residents were without water. Communities suffering the worst damage were Malvern, Slocomb, Geneva, and Samson. The Choctawhatchee River at Geneva crested near 39.3 feet on March 9. In Houston County, 60 roads were closed. At Cottonwood,…
- Nov 5, 2002Tornado$3.0 million
National Weather Service narrative
The supercell thunderstorm which spawned the tornado in Dale County, produced another tornado which touched down just west of U.S. Highway 431, and tore through the center of Abbeville. It destroyed several single-family homes and mobile homes, and severely damaged numerous other homes and businesses, including the high school. Uprooted trees and power lines littered city streets, with nearly 2,000 residents without electricity. Twenty people were injured, with a half of those hospitalized. A man died when the tornado destroyed his home on Rock Hill Circle. Henry County was declared a state disaster area. Reported by the Henry County EMA.
- Dec 16, 2000Tornado$2.9 million
National Weather Service narrative
The F2 tornado continued its intermittent track northeast from eastern Dale County into western Henry County, but had weakened to an F1 tornado. Just north of Murphy Station along Highway 27 and a quarter mile west of U.S. Highway 431, the tornado completely destroyed the Murphy Feed & Seed warehouse, numerous peanut trailers and two sheds. Before the tornado dissipated, it severely damaged the West Point Stevens Textile plant. Numerous vehicles were damaged. Henry County was declared a federal disaster area. Reported by the Henry County EMA.
- Dec 24, 2002Tornado$2.0 million
National Weather Service narrative
A tornado touched down in Headland, north of County Road 99 and U.S.Highway 431. The tornado caused extensive roof damage to several homes, businesses, and a school. It damaged six planes and a hanger at the Headland Airport. The tornado raced east-northeast, and destroyed a few barns and damaged a few mobile homes in the Tumbleton/Camp Springs area. The worst damage occurred in Haleburg where several mobile homes and barns were destroyed, with damage to a local church. Eight persons were injured, with six of them hospitalized. The tornado crossed the Chattahoochee River into Georgia. Reported by the Henry County EMA.
- Apr 19, 2015Tornado$1.0 million
National Weather Service narrative
A short EF1 tornado track was surveyed just southwest of Abbeville, AL with max winds estimated at 110 mph. Eight railroad cars were flipped off their tracks along Alabama Highway 173 just south of a pulpwood plant. Otherwise, damage was confined to trees on the remainder of the path. A media article reported that it would cost around $1 million to turn the railroad cars upright again.
- May 25, 2026Tornado$500,000
National Weather Service narrative
The tornado initially touched down just north of U.S. 84 near Cowarts in Houston County, damaging trees and outbuildings. A pool screen was damaged at a home along Omussee Road, with additional tree and minor damage to homes. The tornado damaged the WDHN television station as it crossed Highway 52, breaking windows and damaging the roof. The tornado continued north-northeast downing trees and causing minor structural damage before moving into Henry County at County Road 22 and Buckhead Drive. The most severe damage was along County Road 15 where two homes were heavily damage. One home was destroyed. This home separated from the concrete foundation, slid, and then collapsed. The…
- Apr 5, 2017Tornado$500,000
National Weather Service narrative
The tornado touched down in extreme southeastern Barbour County in the White Oak community producing EF1 damage on White Oak Drive. The tornado then crossed Sandy Creek into Henry County's White Oak subdivision producing mostly EF1 damage across the entire width of the neighborhood between Sandy Creek and White Oak Creek. However, a double-wide manufactured home on Laurel Drive was shifted about 8 feet despite being strapped to the ground by 2 to 3 foot anchors which were completely pulled from the ground. This justified EF2 damage in this location with winds estimated at 115 mph. The tornado then crossed the Walter F. George Reservoir, also known as Lake Eufaula, into the state…
- Oct 10, 2018Tropical Storm, Henry$441,000
National Weather Service narrative
Hurricane Michael started as typical weak October Caribbean tropical system. However, after approximately a week of slow development, the system moved into warm Gulf of Mexico waters and rapidly intensified into a major hurricane as it moved north towards the Florida Panhandle. After a 2-day long intensification period over the eastern Gulf, Michael made landfall as an unprecedented (for the region) high-end category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale in the Florida Panhandle with maximum sustained wind speed of 155 mph and a minimum pressure 919 mb. Based on wind, Michael is the fourth most powerful hurricane to hit the United States, behind the Labor Day…
- Dec 24, 2015Flood$301,000
National Weather Service narrative
Significant river flooding along the Chattahoochee River and heavy rainfall in the county resulted in flood damages estimated at $301,028 in Henry county, mainly due to road damage.
- Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.
NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.
Weather records
From Dothan Regional Airport, 14.6 miles from the county’s population centre, with records from 1970.
- All-time high
- 105°F4 times, most recently Jul 2, 2009
- All-time low
- 4°FJan 21, 1985
- Warmest night
- 82°F6 times, most recently Jun 18, 2009
- Coldest day
- 23°F2 times, most recently Jan 21, 1985
- Wettest day
- 9.59 inNov 8, 1989
- Snowiest day
- 5.5 inJan 21, 2025
- Hottest year
- 1990mean 70.9°F
- Coldest year
- 1976mean 64.9°F
- Wettest year
- 199078.13 in
- Driest year
- 201137.08 in
- Snowiest season
- 5.5 in2024-25
27 of 32 winters had no measurable snow.
Station Dothan Regional Airport (USW00013839), 368 ft elevation, 14.6 miles from the population centre. Daily records from 1970 to October 26, 2026; 99.2% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.
NOAA NCEI Global Historical Climatology Network Daily.
Federal disaster declarations
28 since 1953. The most recent: Hurricane Helene, September 26, 2024.
| Sep 26, 2024 | Hurricane | EM-3618-AL |
| Sep 14, 2020 | Hurricane | EM-3545-AL |
| Jul 10, 2020 | Severe Storm | DR-4554-AL |
| Mar 29, 2020 | Biological | DR-4503-AL |
| Mar 13, 2020 | Biological | EM-3472-AL |
| Nov 5, 2018 | Hurricane | DR-4406-AL |
| Oct 12, 2018 | Hurricane | EM-3407-AL |
| Oct 8, 2017 | Hurricane | EM-3394-AL |
| Sep 11, 2017 | Hurricane | EM-3389-AL |
| Jan 21, 2016 | Severe Storm | DR-4251-AL |
| Apr 28, 2011 | Severe Storm | DR-1971-AL |
| Apr 27, 2011 | Severe Storm | EM-3319-AL |
| Dec 31, 2009 | Severe Storm | DR-1870-AL |
| Apr 28, 2009 | Severe Storm | DR-1835-AL |
| Aug 30, 2008 | Hurricane | EM-3292-AL |
| Mar 3, 2007 | Severe Storm | DR-1687-AL |
| Sep 10, 2005 | Hurricane | EM-3237-AL |
| Jul 10, 2005 | Hurricane | DR-1593-AL |
| Sep 15, 2004 | Hurricane | DR-1549-AL |
| Nov 14, 2002 | Severe Storm | DR-1442-AL |
| Dec 18, 2000 | Severe Storm | DR-1352-AL |
| Mar 9, 1998 | Severe Storm | DR-1208-AL |
| Oct 4, 1995 | Hurricane | DR-1070-AL |
| Jul 8, 1994 | Severe Storm | DR-1034-AL |
| Mar 15, 1993 | Snowstorm | EM-3096-AL |
| Mar 21, 1990 | Severe Storm | DR-861-AL |
| Jul 20, 1977 | Drought | EM-3045-AL |
| Oct 2, 1975 | Severe Storm | DR-488-AL |
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.
How this compares
Where Henry County stands among 67 counties in Alabama and 3,143 in the United States.
| Tornadoes since 1950 | 39 | 41 / 67 |
| Tornadoes rated F3/EF3 or stronger | 2 | 49 / 67 |
| Tropical cyclones within 50 mi | 32 | 12 / 67 |
| Hurricane-strength passes within 50 mi | 5 | 14 / 67 |
| Wildfire acres since 1984 | 0 | — |
| Flood insurance claims | 19 | 45 / 67 |
| Flood insurance paid | $467,000 | 40 / 67 |
| Disaster declarations | 28 | 14 / 67 |
| Flood events since 1996 | 21 | 45 / 67 |
| Hail and wind events since 1996 | 231 | 39 / 67 |
| Winter storm events since 1996 | 6 | 62 / 67 |
| Reported damage since 1996 | $30.0 million | 24 / 67 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 113 | 23 / 67 |
| Medium or heavy smoke days a year, last 10 years | 9.2 | 64 / 67 |
| Earthquakes M4+ within 50 mi since 1900 | 0 | — |
| Earthquakes M2.5+ in the county since 1973 | 0 | — |
Neighbouring counties
| Barbour County | 45 | 26 |
| Clay County GA | 10 | 25 |
| Dale County | 43 | 32 |
| Early County GA | 38 | 41 |
| Houston County | 60 | 41 |
Sources and vintage
Every number on this page comes from these public records.
- Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
- Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
- Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
- Storm events NOAA NCEI Storm Events Database, through 2026.
- Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
- Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
- Weather records NOAA NCEI Global Historical Climatology Network Daily, station USW00013839.
- River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
- Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
- Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
- Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.
Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.