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National Weather ServiceFlood WatchVTEC FA.A, FL.AArchive to October 1, 2026

Flood Watch: what it means and how often it is issued

The National Weather Service issued 1,044 flood watches in 2025 and 599 a year on average in 2008-2025; Texas, California and Illinois got the most in 2021-2025. 2026 through September: 1,008, 97% above the average of 513 for those months in 2008-2025.

What is a flood watch?

A flood watch means conditions may lead to flooding in the coming day or days; it is not yet happening. A watch means the conditions for the hazard are possible or favourable, but it is not yet happening: be ready to act if a warning follows.

Warning, watch or advisory: the three levels compared

Source: National Weather Service directives and glossary.

How many flood watches a year?

1,044 flood watches in 2025
5001k1.5k2008: 60720082009: 44920092010: 54320102011: 68820112012: 30620122013: 48820132014: 40820142015: 35420152016: 30520162017: 52020172018: 79420182019: 60120192020: 35720202021: 32820212022: 82420222023: 94920232024: 1,22020242025: 1,04420252026: 1,02020262008-2025 average 5992026 through September: 1,0205001k1.5k2008: 60720082009: 4492010: 54320102011: 6882012: 30620122013: 4882014: 40820142015: 3542016: 30520162017: 5202018: 79420182019: 6012020: 35720202021: 3282022: 82420222023: 9492024: 1,22020242025: 1,0442026: 1,02020262008-2025 average 5992026 through September: 1,0205001k1.5k2008: 60720082009: 4492010: 54320102011: 6882012: 30620122013: 4882014: 40820142015: 3542016: 30520162017: 5202018: 79420182019: 6012020: 35720202021: 3282022: 82420222023: 9492024: 1,22020242025: 1,0442026: 1,02020262008-2025 average 5992026 through September: 1,0205001k1.5k2008: 60720082009: 4492010: 5432011: 6882012: 3062013: 4882014: 4082015: 35420152016: 3052017: 5202018: 7942019: 6012020: 35720202021: 3282022: 8242023: 9492024: 1,2202025: 1,0442026: 1,02020262008-2025 average 5992026 through September: 1,020

National count: each flood watch counted once, whatever the number of states it covers. 2026 is an outline: the year is not over.

The numbers
YearCount
2026 (through September)1,020
20251,044
20241,220
2023949
2022824
2021328
2020357
2019601
2018794
2017520
2016305
2015354
2014408
2013488
2012306
2011688
2010543
2009449
2008607

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?

Flood Watches by month, 2008-2025
5001k1.5kJan: 691JanFeb: 881FebMar: 1,293MarApr: 1,113AprMay: 1,495MayJun: 1,177JunJul: 898JulAug: 873AugSep: 811SepOct: 474OctNov: 362NovDec: 717Dec1,4955001k1.5kJan: 691JanFeb: 881FebMar: 1,293MarApr: 1,113AprMay: 1,495MayJun: 1,177JunJul: 898JulAug: 873AugSep: 811SepOct: 474OctNov: 362NovDec: 717Dec1,4955001k1.5kJan: 691JanFeb: 881FebMar: 1,293MarApr: 1,113AprMay: 1,495MayJun: 1,177JunJul: 898JulAug: 873AugSep: 811SepOct: 474OctNov: 362NovDec: 717Dec1,4955001k1.5kJan: 691JFeb: 881FMar: 1,293MApr: 1,113AMay: 1,495MJun: 1,177JJul: 898JAug: 873ASep: 811SOct: 474ONov: 362NDec: 717D1,495

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.

Which states get the most flood watches?

Texas gets the most: 65 a year in 2021-2025
TexasTexas: 6565CaliforniaCalifornia: 6060IllinoisIllinois: 5959VirginiaVirginia: 5858IowaIowa: 5353New MexicoNew Mexico: 5050MissouriMissouri: 4949West VirginiaWest Virginia: 4545OklahomaOklahoma: 3838PennsylvaniaPennsylvania: 3737TexasTexas: 6565CaliforniaCalifornia: 6060IllinoisIllinois: 5959VirginiaVirginia: 5858IowaIowa: 5353New MexicoNew Mexico: 5050MissouriMissouri: 4949West VirginiaWest Virginia: 4545OklahomaOklahoma: 3838PennsylvaniaPennsylvania: 3737TexasTexas: 6565CaliforniaCalifornia: 6060IllinoisIllinois: 5959VirginiaVirginia: 5858IowaIowa: 5353New MexicoNew Mexico: 5050MissouriMissouri: 4949West VirginiaWest Virginia: 4545OklahomaOklahoma: 3838PennsylvaniaPennsylvania: 3737TexasTexas: 6565CaliforniaCalifornia: 6060IllinoisIllinois: 5959VirginiaVirginia: 5858IowaIowa: 5353New MexicoNew Mexico: 5050MissouriMissouri: 4949West VirginiaWest Virginia: 4545OklahomaOklahoma: 3838PennsylvaniaPennsylvania: 3737

Yearly average per state, 2021-2025. A flood watch covering two states counts in both.

StateA year, 2021-2025A year, 2008-20252025
Texas6524108
California602983
Illinois595242
Virginia583392
Iowa534395
New Mexico501481
Missouri492459
West Virginia453371
Oklahoma382172
Pennsylvania373359
Maryland362447
Kentucky342043
Wisconsin333134
Washington332938
North Carolina322043
Indiana312825
New York302633
Louisiana291230
Arkansas281242
Florida281917
Kansas271644
Ohio263127
Colorado26925
Georgia251720
Minnesota222020
Oregon202022
Arizona19727
Alaska191417
Mississippi18713
Connecticut181417
Montana182014
Tennessee171217
Alabama17815
Idaho151718
New Jersey141114
Nebraska14721
Nevada13616
Maine12113
Utah1259
District of Columbia11618
Massachusetts111113
Michigan11155
South Carolina1186
New Hampshire995
Vermont985
Hawaii828
Wyoming783
Rhode Island752
Delaware759
North Dakota697
South Dakota355
Puerto Rico212

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 flood watches 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).

Flood Watch or flood warning?

A flood watch (for a wide area, hours or days ahead) means the conditions are possible: be ready; a flood warning (from the local NWS office, for the area at risk) means the hazard is happening or imminent: act now. A flood warning means flooding is happening or about to happen. The NWS issues it both for rivers at forecast points (river flood warnings) and for areas where water ponds or runs off (areal flood warnings); AreaZine counts both. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The NWS issued 4,230 flood warnings in 2025, against 1,044 flood watches. The flood warning record.