Alert archive / New York / Herkimer County

Weather alerts in Herkimer County, New York, 2026

99 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Herkimer County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Alerts
99
Warnings
29
Watches
15
Advisories
27
Busiest month
January23 alerts
Busiest day
June 30, 20267 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Herkimer County, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings11109%1878%20 min
Flash flood warnings10100%0

Each office's whole area, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Albany, NY: tornado warnings4250%3100%19 min
NWS Albany, NY: severe thunderstorm warnings927518%30984%23 min
NWS Albany, NY: flash flood warnings301937%6794%212 min

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

The alerts

Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 2, 12:38 AM ESTWinter Weather AdvisoryALY30 hr
Jan 6, 12:11 AM ESTWinter Weather AdvisoryALY35 hr
Jan 10, 12:47 AM ESTWinter Weather AdvisoryALY27 hr
Jan 11, 12:31 AM ESTWind AdvisoryALY32 hr
Jan 14, 12:57 AM ESTWinter Weather AdvisoryALY42 hr
Jan 16, 12:36 PM ESTWinter Weather AdvisoryALY28 hr
Jan 18, 12:57 AM ESTWinter Storm WatchALY12 hr
Jan 18, 12:31 PM ESTWinter Storm WarningALY65 hr
Jan 20, 1:15 PM ESTWinter Storm WatchALY11 hr
Jan 21, 12:42 AM ESTWinter Weather AdvisoryALY36 hr
Jan 21, 12:33 PM ESTExtreme Cold WatchALY24 hr
Jan 22, 12:38 AM ESTLake Effect Snow WarningALY42 hr
Jan 22, 8:52 AM ESTMesoscale DiscussionSPC4 hr
Jan 22, 11:40 AM ESTSnow Squall WarningALY50 min
Jan 22, 12:34 PM ESTExtreme Cold WarningALY48 hr
Jan 22, 12:38 PM ESTWinter Storm WatchALY24 hr
Jan 22, 2:15 PM ESTSpecial Weather StatementALY45 min
Jan 23, 12:30 PM ESTWinter Storm WarningALY3 days
Jan 24, 12:55 PM ESTCold Weather AdvisoryALY17 hr
Jan 27, 12:04 PM ESTAreal Flood WarningALY48 hr
Jan 28, 12:22 PM ESTCold Weather AdvisoryALY63 hr
Jan 29, 12:32 PM ESTExtreme Cold WarningALY25 hr
Jan 31, 12:06 PM ESTCold Weather AdvisoryALY22 hr
Feb 5, 12:51 AM ESTExtreme Cold WatchALY24 hr
Feb 6, 12:55 AM ESTCold Weather AdvisoryALY3 days
Feb 6, 12:55 AM ESTExtreme Cold WarningALY60 hr
Feb 9, 1:24 PM ESTWinter Weather AdvisoryALY60 hr
Feb 17, 12:27 PM ESTWinter Weather AdvisoryALY37 hr
Feb 19, 1:15 PM ESTWinter Weather AdvisoryALY38 hr
Feb 20, 1:27 PM ESTMesoscale DiscussionSPC5 hr
Feb 24, 12:39 AM ESTWinter Weather AdvisoryALY48 hr
Feb 25, 6:10 PM ESTSpecial Weather StatementALY35 min
Feb 25, 6:44 PM ESTSpecial Weather StatementALY61 min
Mar 2, 12:48 PM ESTWinter Weather AdvisoryALY38 hr
Mar 4, 12:50 PM ESTWinter Weather AdvisoryALY45 hr
Mar 10, 1:50 PM EDTFlood WatchALY46 hr
Mar 12, 1:26 AM EDTWind AdvisoryALY12 hr
Mar 12, 1:28 AM EDTWinter Storm WatchALY12 hr
Mar 12, 1:41 PM EDTWinter Storm WarningALY48 hr
Mar 13, 1:00 PM EDTWind AdvisoryALY29 hr
Mar 16, 1:21 PM EDTWinter Weather AdvisoryALY17 hr
Mar 17, 6:00 PM EDTSpecial Weather StatementALY60 min
Mar 30, 1:07 PM EDTFlood WatchALY55 hr
Mar 31, 7:39 AM EDTAreal Flood AdvisoryALY2 hr
Mar 31, 9:42 AM EDTRiver Flood WarningALY4 days
Mar 31, 9:52 PM EDTRiver Flood WarningALY6 days
Apr 1, 4:12 AM EDTRiver Flood WarningALY42 hr
Apr 1, 8:50 AM EDTAreal Flood WarningALY23 hr
Apr 5, 10:49 AM EDTRiver Flood WarningALY35 hr
Apr 14, 12:50 PM EDTMesoscale DiscussionSPC2 hr
Apr 14, 2:51 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 14, 3:09 PM EDTSpecial Weather StatementALY36 min
Apr 14, 3:13 PM EDTSpecial Weather StatementALY32 min
Apr 14, 3:25 PM EDTSevere Thunderstorm WarningALY50 min
Apr 16, 1:36 PM EDTMesoscale DiscussionSPC114 min
Apr 16, 6:50 PM EDTMesoscale DiscussionSPC85 min
Apr 16, 6:57 PM EDTSevere Thunderstorm WarningALY63 min
May 5, 1:33 PM EDTMesoscale DiscussionSPC87 min
May 10, 1:06 PM EDTFrost AdvisoryALY19 hr
May 11, 1:06 PM EDTFreeze WarningALY19 hr
May 21, 1:26 AM EDTFrost AdvisoryALY31 hr
May 21, 1:26 AM EDTFreeze WarningALY31 hr
Jun 6, 4:16 PM EDTSpecial Weather StatementALY44 min
Jun 10, 1:47 AM EDTHeat AdvisoryALY66 hr
Jun 14, 1:58 PM EDTMesoscale DiscussionSPC62 min
Jun 17, 1:21 PM EDTWind AdvisoryALY30 hr
Jun 18, 9:31 AM EDTMesoscale DiscussionSPC119 min
Jun 18, 9:58 AM EDTTornado WatchSPC7 hr
Jun 18, 12:06 PM EDTSevere Thunderstorm WarningALY54 min
Jun 18, 12:53 PM EDTSevere Thunderstorm WarningALY45 min
Jun 28, 1:48 PM EDTExtreme Heat WatchALY47 hr
Jun 30, 12:31 PM EDTHeat AdvisoryALY3 days
Jun 30, 12:31 PM EDTExtreme Heat WarningALY3 days
Jun 30, 1:14 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 30, 2:02 PM EDTSevere Thunderstorm WarningALY58 min
Jun 30, 2:48 PM EDTMesoscale DiscussionSPC117 min
Jun 30, 2:53 PM EDTSevere Thunderstorm WarningALY67 min
Jun 30, 3:37 PM EDTSevere Thunderstorm WarningALY53 min
Jul 1, 4:57 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 1, 7:24 PM EDTSevere Thunderstorm WarningALY51 min
Jul 1, 8:07 PM EDTMesoscale DiscussionSPC83 min
Jul 1, 8:13 PM EDTSevere Thunderstorm WarningALY47 min
Jul 1, 8:35 PM EDTFlash Flood WarningALY2 hr
Jul 1, 8:59 PM EDTSevere Thunderstorm WarningALY61 min
Jul 1, 10:01 PM EDTSpecial Weather StatementALY44 min
Jul 2, 4:18 PM EDTMesoscale DiscussionSPC117 min
Jul 2, 7:01 PM EDTSpecial Weather StatementALY29 min
Jul 13, 2:21 AM EDTHeat AdvisoryALY58 hr
Jul 21, 2:06 PM EDTTornado WatchSPC7 hr
Aug 6, 1:39 PM EDTMesoscale DiscussionSPC2 hr
Aug 8, 11:25 PM EDTSpecial Weather StatementBGM35 min
Aug 14, 3:27 PM EDTSpecial Weather StatementALY48 min
Aug 14, 3:35 PM EDTMesoscale DiscussionSPC115 min
Aug 23, 12:03 PM EDTMesoscale DiscussionSPC2 hr
Aug 27, 12:51 PM EDTMesoscale DiscussionSPC114 min
Aug 27, 1:53 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 27, 3:44 PM EDTSpecial Weather StatementALY31 min
Aug 27, 3:52 PM EDTSevere Thunderstorm WarningALY50 min
Sep 13, 6:35 PM EDTSpecial Weather StatementALY40 min

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive2025

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.