Alert archive / New York / Tompkins County

Weather alerts in Tompkins County, New York, 2018

122 weather alerts in 2018, 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 2018. Tap one for its archive.

Alerts
122
Warnings
30
Watches
16
Advisories
34
Busiest month
May15 alerts
Busiest day
May 4, 20187 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, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings15940%863%23 min
Flash flood warnings330%0

Each office's whole area, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Binghamton, NY: tornado warnings8450%850%4 min
NWS Binghamton, NY: severe thunderstorm warnings954751%19667%25 min
NWS Binghamton, NY: flash flood warnings674139%15088%93 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 2, 12:16 AM ESTSpecial Weather StatementBGM44 min
Jan 3, 4:01 AM ESTWind Chill WatchBGM24 hr
Jan 3, 3:09 PM ESTWinter Weather AdvisoryBGM3 days
Jan 4, 3:37 AM ESTWind Chill WarningBGM3 days
Jan 10, 2:57 PM ESTFlood WatchBGM4 days
Jan 10, 3:10 PM ESTWinter Storm WatchBGM37 hr
Jan 12, 3:54 AM ESTWinter Storm WarningBGM32 hr
Jan 12, 6:20 AM ESTAreal Flood AdvisoryBGM4 hr
Jan 12, 7:04 PM ESTMesoscale DiscussionSPC6 hr
Jan 13, 3:47 AM ESTMesoscale DiscussionSPC6 hr
Jan 15, 3:05 PM ESTWinter Weather AdvisoryBGM42 hr
Feb 2, 9:27 AM ESTSnow Squall WarningBGM48 min
Feb 2, 9:50 AM ESTSnow Squall WarningBGM55 min
Feb 5, 3:10 PM ESTWinter Storm WatchBGM24 hr
Feb 6, 3:33 PM ESTWinter Storm WarningBGM28 hr
Feb 7, 5:28 AM ESTMesoscale DiscussionSPC5 hr
Feb 7, 11:25 AM ESTMesoscale DiscussionSPC6 hr
Feb 10, 3:14 PM ESTWinter Weather AdvisoryBGM19 hr
Feb 21, 3:04 PM ESTWinter Weather AdvisoryBGM26 hr
Feb 22, 3:21 PM ESTWinter Weather AdvisoryBGM28 hr
Feb 28, 4:04 AM ESTWinter Storm WatchBGM36 hr
Mar 1, 4:15 AM ESTWinter Storm WarningBGM45 hr
Mar 6, 7:13 PM ESTWinter Weather AdvisoryBGM11 hr
Mar 12, 3:15 AM EDTWinter Weather AdvisoryBGM70 hr
Mar 13, 3:50 PM EDTWinter Storm WarningBGM37 hr
Mar 14, 3:05 PM EDTSpecial Weather StatementBGM55 min
Mar 14, 4:04 PM EDTSpecial Weather StatementBGM56 min
Mar 14, 5:05 PM EDTSpecial Weather StatementBGM55 min
Mar 14, 6:11 PM EDTSpecial Weather StatementBGM109 min
Mar 14, 8:13 PM EDTSpecial Weather StatementBGM2 hr
Mar 14, 10:00 PM EDTSpecial Weather StatementBGM2 hr
Mar 16, 7:23 AM EDTSpecial Weather StatementBGM67 min
Apr 3, 4:15 AM EDTHigh Wind WatchBGM11 hr
Apr 3, 3:13 PM EDTHigh Wind WarningBGM31 hr
Apr 3, 3:13 PM EDTWind AdvisoryBGM12 hr
Apr 13, 3:37 PM EDTWinter Weather AdvisoryBGM62 hr
Apr 15, 11:02 AM EDTWind AdvisoryBGM27 hr
May 3, 2:47 PM EDTSpecial Weather StatementBGM58 min
May 4, 3:50 AM EDTWind AdvisoryBGM19 hr
May 4, 2:23 PM EDTMesoscale DiscussionSPC97 min
May 4, 2:44 PM EDTSevere Thunderstorm WatchSPC6 hr
May 4, 4:20 PM EDTMesoscale DiscussionSPC55 min
May 4, 5:45 PM EDTSevere Thunderstorm WarningBGM45 min
May 4, 5:49 PM EDTSevere Thunderstorm WarningBGM41 min
May 4, 6:27 PM EDTSevere Thunderstorm WarningBGM63 min
May 10, 2:38 PM EDTSpecial Weather StatementBGM37 min
May 15, 8:29 AM EDTSpecial Weather StatementBGM61 min
May 15, 12:26 PM EDTSevere Thunderstorm WatchSPC7 hr
May 28, 2:16 PM EDTMesoscale DiscussionSPC2 hr
May 28, 2:39 PM EDTSevere Thunderstorm WarningBGM66 min
May 28, 3:17 PM EDTSevere Thunderstorm WarningBGM43 min
May 28, 3:31 PM EDTSevere Thunderstorm WarningBGM59 min
Jun 1, 3:20 PM EDTAreal Flood AdvisoryBGM3 hr
Jun 1, 3:42 PM EDTSpecial Weather StatementBGM48 min
Jun 1, 6:55 PM EDTSpecial Weather StatementBGM65 min
Jun 13, 3:30 PM EDTMesoscale DiscussionSPC60 min
Jun 13, 4:06 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 13, 7:12 PM EDTMesoscale DiscussionSPC93 min
Jun 13, 7:24 PM EDTSpecial Weather StatementBGM51 min
Jun 13, 8:10 PM EDTSevere Thunderstorm WarningBGM50 min
Jun 17, 2:26 PM EDTHeat AdvisoryBGM30 hr
Jun 18, 12:19 PM EDTMesoscale DiscussionSPC116 min
Jun 18, 4:04 PM EDTMesoscale DiscussionSPC26 min
Jun 29, 3:49 AM EDTHeat AdvisoryBGM5 days
Jul 2, 1:03 PM EDTMesoscale DiscussionSPC72 min
Jul 2, 5:40 PM EDTSpecial Weather StatementBGM50 min
Jul 3, 3:24 PM EDTHeat AdvisoryBGM30 hr
Jul 16, 7:57 PM EDTSevere Thunderstorm WarningBGM63 min
Jul 16, 8:40 PM EDTSevere Thunderstorm WarningBGM65 min
Jul 16, 9:03 PM EDTSevere Thunderstorm WarningBGM42 min
Jul 16, 9:16 PM EDTAreal Flood AdvisoryBGM3 hr
Jul 16, 9:30 PM EDTFlash Flood WarningBGM3 hr
Jul 23, 12:07 PM EDTFlash Flood WatchBGM62 hr
Jul 23, 2:40 PM EDTMesoscale DiscussionSPC3 hr
Jul 25, 2:16 AM EDTAreal Flood AdvisoryBGM3 hr
Jul 25, 3:49 PM EDTAreal Flood AdvisoryBGM4 hr
Jul 25, 5:52 PM EDTSevere Thunderstorm WarningBGM38 min
Aug 5, 2:52 PM EDTHeat AdvisoryBGM30 hr
Aug 8, 12:09 PM EDTFlash Flood WatchBGM12 hr
Aug 8, 1:39 PM EDTSpecial Weather StatementBGM51 min
Aug 8, 6:15 PM EDTAreal Flood AdvisoryBGM2 hr
Aug 13, 3:15 AM EDTFlash Flood WatchBGM45 hr
Aug 13, 9:03 PM EDTAreal Flood AdvisoryBGM3 hr
Aug 14, 2:56 AM EDTAreal Flood AdvisoryBGM3 hr
Aug 14, 6:47 PM EDTAreal Flood AdvisoryBGM3 hr
Aug 14, 7:16 PM EDTFlash Flood WarningBGM5 hr
Aug 27, 3:44 AM EDTHeat AdvisoryBGM64 hr
Aug 29, 7:50 PM EDTSevere Thunderstorm WarningBGM55 min
Aug 29, 8:55 PM EDTSpecial Weather StatementBGM50 min
Aug 29, 9:34 PM EDTSevere Thunderstorm WarningBGM56 min
Sep 2, 3:25 PM EDTHeat AdvisoryBGM27 hr
Sep 4, 2:00 PM EDTHeat AdvisoryBGM30 hr
Sep 8, 4:14 AM EDTFlood WatchBGM62 hr
Sep 12, 1:46 AM EDTDense Fog AdvisoryBGM8 hr
Sep 17, 4:10 AM EDTFlash Flood WatchBGM32 hr
Sep 17, 11:48 PM EDTAreal Flood AdvisoryBGM4 hr
Sep 18, 12:10 AM EDTFlash Flood WarningBGM6 hr
Sep 18, 6:15 AM EDTAreal Flood WarningBGM6 hr
Sep 21, 7:04 PM EDTMesoscale DiscussionSPC116 min
Sep 21, 7:40 PM EDTSevere Thunderstorm WarningBGM35 min
Sep 21, 8:10 PM EDTSevere Thunderstorm WarningBGM35 min
Sep 26, 1:58 PM EDTSpecial Weather StatementBGM32 min
Oct 11, 2:30 PM EDTSpecial Weather StatementBGM60 min
Oct 13, 3:32 AM EDTFrost AdvisoryBGM29 hr
Nov 10, 10:29 AM ESTSpecial Weather StatementBGM91 min
Nov 12, 2:54 PM ESTWinter Weather AdvisoryBGM20 hr
Nov 14, 4:46 AM ESTWinter Storm WatchBGM23 hr
Nov 14, 8:58 AM ESTSpecial Weather StatementBGM77 min
Nov 14, 10:16 AM ESTSpecial Weather StatementBGM89 min
Nov 15, 4:02 AM ESTWinter Storm WarningBGM30 hr
Nov 15, 4:39 PM ESTMesoscale DiscussionSPC6 hr
Nov 15, 10:06 PM ESTMesoscale DiscussionSPC6 hr
Nov 16, 3:56 AM ESTMesoscale DiscussionSPC6 hr
Nov 21, 12:07 PM ESTSnow Squall WarningBGM53 min
Nov 21, 12:26 PM ESTSnow Squall WarningBGM64 min
Nov 24, 10:08 AM ESTMesoscale DiscussionSPC5 hr
Nov 26, 5:47 PM ESTWinter Weather AdvisoryBGM49 hr
Dec 13, 12:36 PM ESTSpecial Weather StatementBGM39 min
Dec 15, 11:52 AM ESTWinter Weather AdvisoryBGM34 hr
Dec 19, 3:18 PM ESTFlood WatchBGM58 hr
Dec 21, 8:08 PM ESTAreal Flood AdvisoryBGM3 hr
Dec 24, 4:38 PM ESTSpecial Weather StatementBGM37 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 archive20172019

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.