Alert archive / New York / Tompkins County

Weather alerts in Tompkins County, New York, 2023

109 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Tompkins County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts
109
Warnings
34
Watches
15
Advisories
26
Busiest month
July35 alerts
Busiest day
July 24, 202313 alerts

Over time

By month

Warning verification

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

Tompkins County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings271930%1681%18 min
Flash flood warnings220%10%

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Binghamton, NY: tornado warnings16663%1354%15 min
NWS Binghamton, NY: severe thunderstorm warnings26715642%41180%19 min
NWS Binghamton, NY: flash flood warnings572556%9469%99 min

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

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 16, 2:50 PM ESTWinter Weather AdvisoryBGM34 hr
Jan 18, 2:25 PM ESTWinter Weather AdvisoryBGM35 hr
Jan 21, 2:49 PM ESTWinter Weather AdvisoryBGM46 hr
Jan 24, 3:24 AM ESTWinter Weather AdvisoryBGM46 hr
Feb 2, 3:45 AM ESTWind Chill AdvisoryBGM56 hr
Feb 2, 9:14 PM ESTSpecial Weather StatementBGM91 min
Feb 2, 10:06 PM ESTSnow Squall WarningBGM54 min
Feb 2, 10:39 PM ESTMesoscale DiscussionSPC4 hr
Feb 2, 10:58 PM ESTSnow Squall WarningBGM62 min
Feb 21, 2:24 PM ESTSpecial Weather StatementBGM36 min
Feb 21, 2:26 PM ESTWinter Weather AdvisoryBGM44 hr
Feb 26, 3:03 PM ESTWinter Weather AdvisoryBGM48 hr
Mar 2, 3:06 PM ESTWinter Weather AdvisoryBGM46 hr
Mar 9, 3:12 AM ESTWinter Weather AdvisoryBGM54 hr
Mar 10, 4:26 PM ESTMesoscale DiscussionSPC3 hr
Mar 11, 2:44 PM ESTWinter Storm WatchBGM37 hr
Mar 12, 3:20 PM EDTWinter Storm WarningBGM64 hr
Mar 25, 3:37 AM EDTWind AdvisoryBGM31 hr
Mar 29, 5:05 PM EDTMesoscale DiscussionSPC4 hr
Mar 31, 3:08 PM EDTWind AdvisoryBGM35 hr
Apr 1, 2:02 PM EDTMesoscale DiscussionSPC118 min
Apr 1, 2:27 PM EDTSevere Thunderstorm WatchSPC5 hr
Apr 1, 3:49 PM EDTSevere Thunderstorm WarningBGM56 min
Apr 1, 4:01 PM EDTSevere Thunderstorm WarningBGM59 min
Apr 1, 4:24 PM EDTSevere Thunderstorm WarningBGM48 min
Apr 1, 4:43 PM EDTSevere Thunderstorm WarningBGM21 min
Apr 5, 5:31 PM EDTSevere Thunderstorm WarningBGM29 min
Apr 5, 6:01 PM EDTSevere Thunderstorm WarningBGM29 min
Apr 6, 4:54 PM EDTFire Weather WatchBGM14 hr
Apr 10, 2:32 PM EDTFire Weather WatchBGM12 hr
Apr 30, 8:39 AM EDTFlood WatchBGM15 hr
May 14, 2:05 PM EDTFrost AdvisoryBGM18 hr
May 16, 3:22 PM EDTFreeze WatchBGM20 hr
May 17, 11:41 AM EDTFreeze WarningBGM21 hr
May 25, 2:47 AM EDTFrost AdvisoryBGM29 hr
Jun 14, 3:56 PM EDTAreal Flood AdvisoryBGM118 min
Jun 14, 4:24 PM EDTAreal Flood AdvisoryBGM91 min
Jun 17, 1:11 PM EDTSpecial Weather StatementBGM34 min
Jun 26, 12:36 PM EDTMesoscale DiscussionSPC2 hr
Jun 26, 1:11 PM EDTSevere Thunderstorm WatchSPC11 hr
Jun 26, 7:10 PM EDTSevere Thunderstorm WarningBGM50 min
Jun 26, 7:14 PM EDTSevere Thunderstorm WarningBGM46 min
Jun 26, 7:20 PM EDTSevere Thunderstorm WarningBGM55 min
Jun 26, 7:56 PM EDTSevere Thunderstorm WarningBGM49 min
Jun 26, 8:03 PM EDTMesoscale DiscussionSPC87 min
Jun 26, 8:13 PM EDTSevere Thunderstorm WarningBGM47 min
Jun 26, 8:25 PM EDTSevere Thunderstorm WarningBGM50 min
Jun 27, 5:37 PM EDTSpecial Weather StatementBGM23 min
Jul 1, 1:54 PM EDTMesoscale DiscussionSPC2 hr
Jul 3, 5:51 PM EDTAreal Flood AdvisoryBGM55 min
Jul 5, 2:50 PM EDTHeat AdvisoryBGM29 hr
Jul 7, 2:06 PM EDTSpecial Weather StatementBGM24 min
Jul 7, 2:16 PM EDTSevere Thunderstorm WarningBGM44 min
Jul 8, 3:02 PM EDTFlood WatchBGM37 hr
Jul 13, 11:58 AM EDTMesoscale DiscussionSPC2 hr
Jul 13, 12:43 PM EDTSevere Thunderstorm WatchSPC9 hr
Jul 13, 2:21 PM EDTSevere Thunderstorm WarningBGM54 min
Jul 13, 3:12 PM EDTSevere Thunderstorm WarningBGM63 min
Jul 13, 3:20 PM EDTMesoscale DiscussionSPC115 min
Jul 13, 3:34 PM EDTSevere Thunderstorm WarningBGM56 min
Jul 18, 3:15 PM EDTSpecial Weather StatementBGM30 min
Jul 18, 3:42 PM EDTSpecial Weather StatementBGM33 min
Jul 20, 6:19 PM EDTSevere Thunderstorm WatchSPC9 hr
Jul 20, 10:07 PM EDTMesoscale DiscussionSPC113 min
Jul 20, 10:32 PM EDTSpecial Weather StatementBGM43 min
Jul 20, 11:13 PM EDTSpecial Weather StatementBGM47 min
Jul 24, 11:58 AM EDTMesoscale DiscussionSPC2 hr
Jul 24, 1:06 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 24, 2:06 PM EDTSpecial Weather StatementBGM24 min
Jul 24, 2:12 PM EDTSevere Thunderstorm WarningBGM48 min
Jul 24, 2:54 PM EDTSevere Thunderstorm WarningBGM25 min
Jul 24, 2:56 PM EDTMesoscale DiscussionSPC2 hr
Jul 24, 3:26 PM EDTSevere Thunderstorm WarningBGM49 min
Jul 24, 3:53 PM EDTSevere Thunderstorm WarningBGM52 min
Jul 24, 5:26 PM EDTSpecial Weather StatementBGM49 min
Jul 24, 5:41 PM EDTSevere Thunderstorm WarningBGM64 min
Jul 24, 6:21 PM EDTAreal Flood AdvisoryBGM3 hr
Jul 24, 6:48 PM EDTSevere Thunderstorm WarningBGM57 min
Jul 24, 7:44 PM EDTAreal Flood WarningBGM3 hr
Jul 27, 3:19 AM EDTHeat AdvisoryBGM41 hr
Jul 29, 11:33 AM EDTMesoscale DiscussionSPC117 min
Jul 29, 3:08 PM EDTSpecial Weather StatementBGM37 min
Jul 29, 3:13 PM EDTAreal Flood AdvisoryBGM3 hr
Aug 4, 11:21 AM EDTMesoscale DiscussionSPC114 min
Aug 4, 12:10 PM EDTSevere Thunderstorm WatchSPC10 hr
Aug 7, 12:39 PM EDTMesoscale DiscussionSPC2 hr
Aug 7, 4:27 PM EDTSevere Thunderstorm WarningBGM33 min
Aug 9, 2:24 PM EDTSpecial Weather StatementBGM36 min
Aug 12, 12:50 PM EDTTornado WatchSPC8 hr
Aug 12, 2:50 PM EDTSevere Thunderstorm WarningBGM55 min
Aug 12, 3:25 PM EDTSevere Thunderstorm WarningBGM50 min
Aug 12, 4:04 PM EDTMesoscale DiscussionSPC116 min
Aug 15, 7:05 PM EDTMesoscale DiscussionSPC115 min
Aug 17, 10:42 PM EDTAreal Flood AdvisoryBGM4 hr
Sep 3, 2:08 PM EDTHeat AdvisoryBGM29 hr
Sep 4, 2:09 PM EDTHeat AdvisoryBGM29 hr
Sep 5, 2:44 PM EDTHeat AdvisoryBGM28 hr
Sep 7, 11:58 AM EDTMesoscale DiscussionSPC3 hr
Sep 7, 1:14 PM EDTSevere Thunderstorm WatchSPC8 hr
Sep 7, 5:07 PM EDTSpecial Weather StatementBGM53 min
Sep 7, 5:30 PM EDTSevere Thunderstorm WarningBGM45 min
Sep 8, 5:06 PM EDTSevere Thunderstorm WarningBGM39 min
Nov 1, 11:11 AM EDTSpecial Weather StatementBGM64 min
Dec 3, 8:08 PM ESTSpecial Weather StatementBGM37 min
Dec 10, 3:29 AM ESTWinter Weather AdvisoryBGM36 hr
Dec 16, 1:38 PM ESTFlood WatchBGM50 hr
Dec 18, 2:46 AM ESTAreal Flood AdvisoryBGM3 hr
Dec 18, 8:37 AM ESTFlash Flood WarningBGM5 hr
Dec 18, 8:58 AM ESTFlash Flood WarningBGM5 hr

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 archive20222024

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.