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National Weather ServiceMissouriFlash Flood WarningArchive to October 1, 2026

Flash Flood Warnings in Missouri

The National Weather Service issued 176 flash flood warnings for Missouri in 2025 and 200 a year on average in 2008-2025; in 2021-2025 it had the 8th most of any state. 2026 through September: 216, 14% above the average of 189 for those months in 2008-2025. Barry was covered most often (202 times since 2008).

How many flash flood warnings does Missouri get?

176 flash flood warnings for Missouri in 2025
1002003004002008: 35720082009: 36320092010: 33520102011: 20520112012: 6620122013: 18720132014: 11620142015: 28020152016: 21820162017: 15720172018: 9820182019: 23620192020: 16720202021: 19120212022: 9820222023: 15220232024: 19520242025: 17620252026: 21620262008-2025 average 2002026 through September: 2161002003004002008: 35720082009: 3632010: 33520102011: 2052012: 6620122013: 1872014: 11620142015: 2802016: 21820162017: 1572018: 9820182019: 2362020: 16720202021: 1912022: 9820222023: 1522024: 19520242025: 1762026: 21620262008-2025 average 2002026 through September: 2161002003004002008: 35720082009: 3632010: 33520102011: 2052012: 6620122013: 1872014: 11620142015: 2802016: 21820162017: 1572018: 9820182019: 2362020: 16720202021: 1912022: 9820222023: 1522024: 19520242025: 1762026: 21620262008-2025 average 2002026 through September: 2161002003004002008: 35720082009: 3632010: 3352011: 2052012: 662013: 1872014: 1162015: 28020152016: 2182017: 1572018: 982019: 2362020: 16720202021: 1912022: 982023: 1522024: 1952025: 1762026: 21620262008-2025 average 2002026 through September: 216

Every flash flood warning that covered part of Missouri. 2026 is an outline: the year is not over.

The numbers
YearCount
2026 (through September)216
2025176
2024195
2023152
202298
2021191
2020167
2019236
201898
2017157
2016218
2015280
2014116
2013187
201266
2011205
2010335
2009363
2008357

Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.

When in the year does Missouri get them?

Missouri's flash flood warnings by month, 2008-2025
250500750Jan: 33JanFeb: 49FebMar: 156MarApr: 394AprMay: 597MayJun: 750JunJul: 692JulAug: 500AugSep: 226SepOct: 92OctNov: 46NovDec: 62Dec750250500750Jan: 33JanFeb: 49FebMar: 156MarApr: 394AprMay: 597MayJun: 750JunJul: 692JulAug: 500AugSep: 226SepOct: 92OctNov: 46NovDec: 62Dec750250500750Jan: 33JanFeb: 49FebMar: 156MarApr: 394AprMay: 597MayJun: 750JunJul: 692JulAug: 500AugSep: 226SepOct: 92OctNov: 46NovDec: 62Dec750250500750Jan: 33JFeb: 49FMar: 156MApr: 394AMay: 597MJun: 750JJul: 692JAug: 500ASep: 226SOct: 92ONov: 46NDec: 62D750

Sum of 2008-2025; the busiest month is labelled.

Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.

Where in Missouri?

County or forecast zoneSince 2008Since 2023Last issued
Barry20235June 25, 2026
Greene20143June 25, 2026
Newton19838June 26, 2026
Christian19035June 25, 2026
Texas18737June 27, 2026
Douglas17836June 27, 2026
Jasper17537June 26, 2026
Webster16833June 14, 2026
Lawrence16730July 5, 2026
Wright16632June 27, 2026
McDonald16324June 22, 2026
Stone16123June 25, 2026

The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.

Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.

The latest flash flood warnings for Missouri in AreaZine's record

This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.

Source: National Weather Service alerts (api.weather.gov).

What is a flash flood warning?

A flash flood warning means flash flooding is happening or about to happen: water rising fast in streams, streets or dry washes, usually within six hours of heavy rain or a dam or levee failure. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Missouri.