Elmira

Population 26,089 (2025)

26 tornadoes have tracked within 25 miles of Elmira since 1950, 3 of them rated EF3 or F3 or stronger; the most recent was on May 28, 2019.

Hazard fingerprint for Elmira Tornado: 22th percentile. Tropical: 34th percentile. Wildfire: 0th percentile. Flood: 72th percentile. Hail & wind: 68th percentile. Heat: 25th percentile. Cold: 62th percentile. Winter: 55th percentile. TORTROPFIREFLOODSEVEREHEATCOLDWINTER

Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed

2026
  • Tornado damage paths within 25 miles since 195026
  • Tropical cyclone tracks within 100 miles since 1851, wider where stronger7
  • Major flood years since 1978, Chemung County4

At a glance

Tornado paths within 25 miles, tropical cyclone tracks within 100 miles and wildfire perimeters within 25 miles of the city centre. Storm events, flood insurance claims and disaster declarations are for Chemung County. Earthquakes within 50 miles, volcanoes within 100 miles and smoke days are measured from the city centre; river and tide gauges, tsunami and landslide records and the drought index are for Chemung County.

Flood insurance claims

304

Chemung County

$2.6 million paid since 1978

Details

Tropical cyclones within 50 mi

5

None at hurricane strength since 1851

Details

Tornadoes since 1950, within 25 mi

26

3 rated F3/EF3 or stronger

Details

Strongest tornado

F3

May 2, 1983, 15.0 mile path

Strongest tropical cyclone

TS

Tropical storm (unnamed), 1893, 45.0 miles away

Federal disaster declarations

19

Most recent: Covid-19 Pandemic, 2020

Details

Record high

104°F

July 21, 2011

Details

Record low

−25°F

February 1, 1948

Details

Tornadoes

About one every 2.9 years since 1950, 3 of them rated F3/EF3 or stronger.

Strongest

May 2, 1983

F3, 15.0 mile path

300 yards wide.

Deadliest

August 7, 1972

1 killed, F1

2 injured along the whole path.

Most recent

Tuesday, May 28, 2019

EF1, 3.2 mile path

7 years ago.

Tornadoes by decade, within 25 miles Doppler radar era² 1950s: 1 1 1960s: 2 2 1970s: 1 1 1980s: 4 4 1990s: 2 2 2000s: 2 2 2010s: 14 14 2020s: 0 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 0 A: 3 M: 5 J: 4 J: 8 8 A: 4 S: 1 O: 0 N: 1 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes within 25 miles since 1950
May 28, 2019EF13.220000
Jun 19, 2017EF01.125000
Sep 2, 2014EF16.015000
Jul 13, 2014EF13.512500
Jul 26, 2012EF113.830000
Jul 26, 2012EF18.860000
Jul 26, 2012EF12.680000
Jul 26, 2012EF10.310000
Jul 15, 2012EF01.212000
May 26, 2011EF10.47500
Apr 27, 2011EF12.115000
Apr 27, 2011EF20.930000
Apr 27, 2011EF14.615000
Jun 22, 2010EF11.025000
Nov 16, 2006F10.510000
Jun 6, 2005F02.010000
Jul 8, 1997F18.010000
Jul 5, 1992F18.010000
Aug 27, 1988F111.688000
May 2, 1983F315.030060
May 2, 1983F32.088010
May 2, 1983F29.83000
Aug 7, 1972F10.11021
Jun 15, 1964F16.910000
Aug 25, 1961F00.11000
Aug 30, 1955F31.020000
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond this area.
  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

5 passed within 50 miles since 1851; none at hurricane strength.

Strongest within 50 miles

October 14, 1893

Unnamed storm, Tropical storm

45.0 miles at closest approach, winds near 70 mph.

Most recent

September 9, 2004

Frances, Post-tropical

66.7 miles at closest approach.

Tropical cyclones within 50 miles by decade 50s: 0 60s: 0 70s: 1 1 80s: 0 90s: 1 00s: 1 10s: 0 20s: 0 30s: 1 40s: 0 50s: 0 60s: 0 70s: 1 80s: 0 90s: 0 00s: 0 10s: 0 20s: 0 50s60s70s80s90s00s10s20s30s40s50s60s70s80s90s00s10s20s
Storms within 50 miles, by decade. Records before about 1900 miss storms that never reached land or ships.

Every storm within 100 miles

Tropical cyclones within 100 miles
Frances200466.7Post-tropical40Category 4
David197948.7Tropical storm46Category 5
Agnes197245.2Post-tropical52Category 1
Hazel195456.0Post-tropical77Category 4
Unnamed194971.6Tropical storm56Category 4
Unnamed193320.2Tropical storm43Category 4
Unnamed192978.9Post-tropical58Category 4
Unnamed190318.5Tropical storm49Category 2
Unnamed190294.2Post-tropical40Category 1
Unnamed189345.0Tropical storm70Category 3
Unnamed188511.7Post-tropical46Tropical storm
Unnamed187883.4Category 181Category 2
Unnamed187641.1Tropical storm46Category 3
  1. 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 within 25 miles since satellite mapping began in 1984.

Smoke overhead

Smokiest year

2023: 58 days

Heavy smoke on 12 days in 2023, the most of any year.

Last 10 years

16.1 days a year

Medium or heavy smoke, 2016 to 2025.

2025

17 days

Medium or heavy smoke. 21 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 3 2012: 5 2013: 0 2014: 7 2015: 8 2016: 0 2017: 5 2018: 7 2019: 8 2020: 8 2021: 23 2022: 11 2023: 58 58 2024: 24 2025: 17 201120122013201420152016201720182019202020212022202320242025
Days each year on which a satellite-traced plume of medium or heavy smoke covered the city centre, 2011 to 2025.
  1. 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

304 federal flood insurance claims since 1978, with $2.6 million paid.

Flood insurance figures are for Chemung County, the county that contains Elmira.

Federal flood insurance claims by year 1978: 10 1979: 25 1981: 7 1983: 6 1984: 24 1993: 12 1994: 24 1996: 98 98 2004: 7 2011: 37 2013: 5 2018: 26 197819932013
Claims per year since 1978. Years with fewer than five claims are not shown.

Most claims in one year

1996: 98 claims

$790,000 paid.

2nd most

2011: 37 claims

$902,000 paid.

3rd most

2018: 26 claims

$256,000 paid.

Claims by ZIP code

Flood insurance claims by ZIP code
1489454$1.1 million
1490141$259,000
1490335$107,000
1481427$138,000
1484527$107,000
1490427$20,000
1489224$62,000
1487123$178,000
1486112$104,000
1490510$11,000
115105$403,000

Flood events since 1996

  • Flash Flood42
  • Flood19
  • Heavy Rain1

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

River gauges in Chemung County, the county that contains Elmira.

Most severe crest

June 23, 1972

Chemung River at Chemung, 31.62 ft

15.62 feet above the 16.0 ft flood stage; major flooding by today’s categories.

Most recent moderate or major crest

November 8, 1996

Chemung River at Elmira, 16.00 ft

Moderate flooding.

Highest river crests above flood stage
Jun 23, 1972Chemung River at Chemung31.62+15.62Major
Sep 27, 1975Chemung River at Chemung24.10+8.10Major
May 28, 1946Chemung River at Chemung23.97+7.97Moderate
Jan 19, 1996Chemung River at Elmira18.51+6.51Moderate
Mar 6, 1964Chemung River at Chemung20.44+4.44Moderate
Oct 15, 1955Chemung River at Chemung20.13+4.13Moderate
Nov 8, 1996Chemung River at Elmira16.00+4.00Moderate
Jan 20, 1996Chemung River at Chemung19.82+3.82Minor
Apr 1, 1940Chemung River at Chemung19.62+3.62Minor
Mar 12, 1936Chemung River at Chemung19.57+3.57Minor
Jul 9, 1935Chemung River at Chemung19.45+3.45Minor
Mar 8, 1956Chemung River at Chemung19.22+3.22Minor
Mar 31, 1951Chemung River at Chemung19.19+3.19Minor
Mar 29, 1950Chemung River at Chemung19.12+3.12Minor
Dec 31, 1942Chemung River at Chemung19.04+3.04Minor
Mar 31, 1960Chemung River at Chemung19.02+3.02Minor
Feb 22, 1994Chemung River at Chemung18.97+2.97Minor
Nov 26, 1950Chemung River at Chemung18.66+2.66Minor
Mar 18, 1936Chemung River at Chemung18.61+2.61Minor
Nov 9, 1996Chemung River at Chemung18.52+2.52Minor
Sep 18, 2004Chemung River at Chemung18.45+2.45Minor
Feb 8, 1904Chemung River at Chemung18.40+2.40Minor
Mar 22, 1948Chemung River at Chemung18.26+2.26Minor
Apr 26, 1961Chemung River at Chemung18.24+2.24Minor
Mar 6, 1979Chemung River at Chemung18.24+2.24Minor

River gauges

River gauges and their highest listed crests
Chemung River at Chemung16.031.62 ftJun 23, 19722
Chemung River at Elmira12.018.51 ftJan 19, 19960
  1. 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 96 of 1,581 months since 1895 (6%); the longest spell lasted 19 months.

The drought index is for Chemung County, the county that contains Elmira.

96

Months in severe drought or worse since 1895

32

Months in extreme drought

6%

Share of all months, severe or worse

7

Drought reports to the Weather Service since 1996

Lowest reading

February 1931

−5.05, extreme drought

Longest severe spell

19 months

September 1964 to March 1966.

Latest month

September 2026

0.00, near normal

Last severe month: September 2016.

Months in severe drought or worse, by year 1895: 1 1896: 0 1897: 0 1898: 0 1899: 0 1900: 2 1901: 0 1902: 0 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 2 1909: 4 1910: 6 1911: 4 1912: 0 1913: 0 1914: 0 1915: 0 1916: 0 1917: 1 1918: 0 1919: 0 1920: 0 1921: 0 1922: 0 1923: 1 1924: 0 1925: 0 1926: 0 1927: 0 1928: 0 1929: 0 1930: 2 1931: 9 1932: 4 1933: 0 1934: 0 1935: 0 1936: 0 1937: 0 1938: 0 1939: 4 1940: 1 1941: 3 1942: 4 1943: 0 1944: 0 1945: 0 1946: 0 1947: 0 1948: 0 1949: 2 1950: 0 1951: 0 1952: 0 1953: 1 1954: 4 1955: 4 1956: 0 1957: 0 1958: 0 1959: 0 1960: 0 1961: 1 1962: 0 1963: 1 1964: 4 1965: 12 12 1966: 4 1967: 0 1968: 0 1969: 0 1970: 0 1971: 0 1972: 0 1973: 0 1974: 0 1975: 0 1976: 0 1977: 0 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 0 1988: 0 1989: 0 1990: 0 1991: 6 1992: 2 1993: 0 1994: 0 1995: 2 1996: 0 1997: 0 1998: 0 1999: 2 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 0 2007: 0 2008: 0 2009: 0 2010: 0 2011: 0 2012: 0 2013: 0 2014: 0 2015: 0 2016: 3 2017: 0 2018: 0 2019: 0 2020: 0 2021: 0 2022: 0 2023: 0 2024: 0 2025: 0 18951905191519251935194519551965197519851995200520152025
Months each year with a Palmer index of −3 or lower, 1895 to 2025. Twelve means the whole year.
  1. 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 and landslides

2 earthquakes of magnitude 2.5 or more within 50 miles since 2001; none reached magnitude 4.

1

Magnitude 3+ within 50 miles since 1973

0

Magnitude 4+ within 50 miles since 1900

0

Magnitude 5+ within 50 miles since 1900

Largest within 50 miles

February 3, 2001

Magnitude 3.2

6 km W of Bath, New York; 34.6 miles away, 0.0 miles deep.

Most recent, magnitude 3 or more

February 3, 2001

Magnitude 3.2

6 km W of Bath, New York; 34.6 miles away.

  1. Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the city centre.
  2. Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).

USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.

Mapped landslides

Landslides mapped in Chemung County.

2

Landslides mapped, probable or better

0

With a recorded date

1

Source inventory

Mapped by USGS Conterminous (2).

  1. Landslides mapped in the USGS compilation of landslide inventories across the United States (version 3.0, 2025), rated probable or better. The compilation joins inventories made by federal and state agencies for different purposes and areas, so the number mapped in a county reflects how closely it has been surveyed as much as how often its slopes fail. An area with few records may simply not have been mapped. Deaths are as recorded in the inventories; a slide listed in two inventories is counted once.

USGS Landslide Inventories across the United States, version 3.0, retrieved October 27, 2026.

Severe weather and other events

454 events in the National Weather Service record for Chemung County, 393 of them since 1996.

47

Hail reports, 1 inch or larger

0

Hail, 2 inches or larger

149

Damaging gusts, 58 mph+

73

Winter weather events since 1996

4

Heat events since 1996

14

Cold events since 1996

Largest hail

June 28, 1976

1.75 inches

Strongest measured or estimated gust

April 14, 1974

86 mph

More event types since 1996

Other Storm Events types since 1996
Lightning301Jun 6, 2005

Costliest events since 1996

  1. Jan 19, 1996Flash Flood$17.8 million
  2. Jul 26, 2012Tornado$10.0 million
    National Weather Service narrative

    A tornado touched down west of Elmira near Miracle Lane off of Route 352. It traveled through west Elmira and into downtown Elmira along Church Street. It fell hundreds of trees. Some trees smashed cars, homes, and porches. It was amazing no one was injured or killed. The damage path widened while in downtown Elmira between Route 14 and Route 17. Then the tornado turned towards the southeast and traveled in a path near Jerusalem Hill Road. It lifted near the intersection of Jerusalem Hill Road and Monkey Run Road.

  3. Nov 8, 1996Flash Flood$1.5 million
  4. Sep 7, 2011Flash Flood$1.0 million
    National Weather Service narrative

    Major flash flooding took place across most of the small streams, creeks and poor drainage areas in eastern Chemung County. Many roads and bridges were washed out.

  5. Sep 17, 2004Flash Flood$1.0 million
    National Weather Service narrative

    Heavy rain with amounts from 2.5 to 4 inches caused flash flooding. The rain which fell from the 16th to the 18th was due to the remnants of hurricane Ivan. Many streams and creeks went out of their banks. The rain also caused the Chemung River to flood. A few homes were damaged by the flash flooding.

  6. Aug 9, 2003Flash Flood$750,000
    National Weather Service narrative

    3 to 3.5 inches of rain caused massive flash flooding of the Southport area in Chemung County. Seely and Dry Run Creeks were most impacted. Numerous roads were closed and flooded. Several residents and buildings were evacuated due to the flooding.

  7. Apr 28, 2011Tornado$575,000
    National Weather Service narrative

    The tornado started just west of the Erin Town Hall, south of Route 223. It began just southwest of the local cemetery and tracked toward the northeast. Numerous pine trees were snapped off and uprooted in the cemetery. ||Immediately to the west of the cemetery, a well-constructed barn was destroyed, with all four walls completely collapsed. The tornado tracked northeast and across Route 223. The tornado lofted debris into the yard across the street with debris from the destroyed barn impaled into the front lawn. Debris also blew all the windows out of the front of the home, with some debris penetrating the siding and thrown into the home. At this site, all three vehicles were…

  8. Jul 22, 2003Flash Flood$500,000
    National Weather Service narrative

    Two day rainfall between 2 and 4 inches fell on the 21st into the 22nd. Very slow-moving thunderstorms on the 22nd caused flash flooding. The excessive rainfall caused flooding along Catherine Creek. Several roads were closed as a result of this flooding.

  9. Sep 9, 2004Flood, Chemung$500,000
    National Weather Service narrative

    Heavy rainfall from the remnants of hurricane Frances caused the Chemung River at Elmira to rise above its flood stage of 12 feet. The Chemung River at Elmira crested around 13 feet late on the 9th. Rainfall amounts were 1.5 to 4 inches with locally higher amounts across the Chemung River basin. Many roads were flooded and closed due to the river flooding in the Big Flats area.

  10. Apr 27, 2011Flash Flood$400,000
    National Weather Service narrative

    Several towns and villages experienced damage to roads and culverts due to heavy rain and flash flooding. The town of Erin and Village of Millport both reported severe damage to roads and the highway system. Damage was also reported in The towns of Ashland, Baldwin and City of Elmira.

  1. 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 Elmira Corning Regional Airport, 6.5 miles from the city centre, with records from 1938.

All-time high
104°FJul 21, 2011
All-time low
−25°FFeb 1, 1948
Warmest night
74°F2 times, most recently Jul 22, 2011
Coldest day
2°FFeb 17, 1958
Wettest day
4.02 inOct 14, 1955
Snowiest day
13.0 inMar 16, 1956
Hottest year
2024mean 51.9°F
Coldest year
1958mean 45.3°F
Wettest year
201843.78 in
Driest year
200923.03 in
Average monthly high and low temperature and precipitation, last 30 years, Elmira Corning Regional Airport 32°F 34° 16° 1.6 Jan 37° 17° 1.4 Feb 47° 24° 2.1 Mar 59° 33° 2.8 Apr 71° 44° 2.9 May 79° 53° 3.6 Jun 83° 57° 3.3 Jul 81° 56° 3.8 Aug 75° 49° 3.3 Sep 62° 39° 2.9 Oct 50° 29° 1.9 Nov 39° 22° 2.1 Dec Precipitation, inches
Average daily high and low by month, and average monthly precipitation, over the last 30 years.
Nights at or below freezing per year 1998: 137 1999: 164 2000: 159 2001: 156 2002: 167 2003: 157 2004: 143 2005: 175 175 2006: 163 2007: 160 2008: 161 2009: 155 2010: 151 2011: 140 2012: 133 2013: 148 2014: 157 2015: 144 2016: 157 2017: 132 2018: 148 2019: 152 2020: 158 2021: 135 2022: 158 2023: 136 2024: 130 2025: 157 199820082018
Nights at or below freezing each complete year, last 50 years. Thirty-year average: 151.2.

Station Elmira Corning Regional Airport (USW00014748), 936 ft elevation, 6.5 miles from the city centre. Daily records from 1938 to October 27, 2026; 95.6% 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

19 since 1953. The most recent: Covid-19 Pandemic, March 20, 2020.

Declarations for Chemung County.

Federal disaster declarations
Mar 20, 2020BiologicalCovid-19 PandemicMajor disasterDR-4480-NY
Mar 13, 2020BiologicalCovid-19EmergencyEM-3434-NY
Oct 1, 2018FloodSevere Storms and FloodingMajor disasterDR-4397-NY
Oct 28, 2012HurricaneHurricane SandyEmergencyEM-3351-NY
Sep 13, 2011Severe StormRemnants of Tropical Storm LeeMajor disasterDR-4031-NY
Sep 8, 2011Severe StormRemnants of Tropical Storm LeeEmergencyEM-3341-NY
Jun 10, 2011FloodSevere Storms, Flooding, Tornadoes, and Straight-Line WindsMajor disasterDR-1993-NY
Sep 30, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3262-NY
Aug 3, 2004Severe StormSevere Storms and FloodingMajor disasterDR-1534-NY
Aug 29, 2003Severe StormSevere Storms, Flooding, and TornadoesMajor disasterDR-1486-NY
Aug 23, 2003OtherPower OutageEmergencyEM-3186-NY
Sep 11, 2001FireFires and ExplosionsMajor disasterDR-1391-NY
Oct 11, 2000OtherWest Nile VirusEmergencyEM-3155-NY
Dec 9, 1996Severe StormSevere Storms High Winds, Rain and FloodingMajor disasterDR-1148-NY
Jan 24, 1996FloodSevere Storms and FloodingMajor disasterDR-1095-NY
Mar 17, 1993SnowstormSevere BlizzardEmergencyEM-3107-NY
Jun 29, 1976FloodFlash FloodingMajor disasterDR-512-NY
Oct 2, 1975FloodStorms, Rains, Landslides & FloodingMajor disasterDR-487-NY
Jun 23, 1972FloodTropical Storm AgnesMajor disasterDR-338-NY

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.

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 USW00014748.
  • 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.
  • Landslides USGS Landslide Inventories across the United States, version 3.0 (2025).
  • 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.