Alert archive / New York / Genesee County

Weather alerts in Genesee County, New York, 2010

88 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Genesee County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts
88
Warnings
22
Watches
13
Advisories
28
Busiest month
July15 alerts
Busiest day
July 21, 20108 alerts

Over time

By month

Warning verification

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

Genesee County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings9456%580%17 min
Flash flood warnings00

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Buffalo, NY: tornado warnings9456%786%30 min
NWS Buffalo, NY: severe thunderstorm warnings593639%9771%26 min
NWS Buffalo, NY: flash flood warnings14936%1694%57 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, 4:57 AM ESTWinter Weather AdvisoryBUF47 hr
Jan 2, 11:23 AM ESTLake Effect Snow WarningBUF41 hr
Jan 13, 3:11 PM ESTWinter Weather AdvisoryBUF13 hr
Jan 18, 9:35 PM ESTWinter Weather AdvisoryBUF6 hr
Jan 19, 7:07 AM ESTWinter Weather AdvisoryBUF3 hr
Jan 23, 3:20 PM ESTFlood WatchBUF47 hr
Jan 25, 5:56 AM ESTAreal Flood AdvisoryBUF4 hr
Jan 25, 5:03 PM ESTRiver Flood WarningBUF12 hr
Jan 27, 9:38 AM ESTLake Effect Snow AdvisoryBUF6 hr
Jan 27, 2:40 PM ESTLake Effect Snow WarningBUF32 hr
Jan 27, 9:28 PM ESTLake Effect Snow AdvisoryBUF36 hr
Feb 8, 4:00 PM ESTWinter Weather AdvisoryBUF47 hr
Feb 17, 10:30 PM ESTWinter Weather AdvisoryBUF11 hr
Feb 22, 3:55 PM ESTWinter Weather AdvisoryBUF14 hr
Feb 24, 4:12 AM ESTWinter Storm WatchBUF11 hr
Feb 24, 2:42 PM ESTWinter Storm WarningBUF42 hr
Mar 12, 3:53 PM ESTFlood WatchBUF35 hr
Mar 14, 6:25 AM EDTRiver Flood WarningBUF61 hr
Apr 3, 3:42 PM EDTWind AdvisoryBUF6 hr
Apr 6, 1:29 PM EDTMesoscale DiscussionSPC61 min
Apr 19, 4:05 AM EDTFrost AdvisoryBUF28 hr
Apr 22, 3:47 AM EDTFrost AdvisoryBUF29 hr
Apr 23, 3:41 PM EDTFrost AdvisoryBUF16 hr
May 5, 4:48 PM EDTMesoscale DiscussionSPC87 min
May 7, 3:35 AM EDTHigh Wind WatchBUF12 hr
May 7, 3:24 PM EDTHigh Wind WarningBUF31 hr
May 7, 10:44 PM EDTSevere Thunderstorm WarningBUF61 min
May 8, 4:25 PM EDTFreeze WatchBUF23 hr
May 9, 3:34 PM EDTFreeze WatchBUF24 hr
May 9, 3:34 PM EDTFreeze WarningBUF15 hr
May 10, 11:36 AM EDTFreeze WarningBUF20 hr
May 13, 11:02 PM EDTAreal Flood AdvisoryBUF2 hr
Jun 5, 1:13 AM EDTAreal Flood AdvisoryBUF2 hr
Jun 6, 3:38 AM EDTMesoscale DiscussionSPC2 hr
Jun 6, 7:48 AM EDTAreal Flood AdvisoryBUF117 min
Jun 16, 1:39 PM EDTMesoscale DiscussionSPC96 min
Jun 24, 1:30 AM EDTSevere Thunderstorm WatchSPC3 hr
Jun 27, 3:49 PM EDTMesoscale DiscussionSPC116 min
Jun 27, 4:19 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 27, 8:12 PM EDTMesoscale DiscussionSPC93 min
Jun 28, 12:05 PM EDTMesoscale DiscussionSPC55 min
Jun 28, 3:15 PM EDTSpecial Weather StatementBUF60 min
Jun 28, 7:01 PM EDTSpecial Weather StatementBUF59 min
Jul 17, 3:05 PM EDTMesoscale DiscussionSPC55 min
Jul 21, 10:43 AM EDTMesoscale DiscussionSPC2 hr
Jul 21, 11:27 AM EDTSevere Thunderstorm WatchSPC9 hr
Jul 21, 1:59 PM EDTMesoscale DiscussionSPC61 min
Jul 21, 2:24 PM EDTAreal Flood AdvisoryBUF3 hr
Jul 21, 3:41 PM EDTMesoscale DiscussionSPC64 min
Jul 21, 4:42 PM EDTAreal Flood WarningBUF4 hr
Jul 21, 4:48 PM EDTSpecial Weather StatementBUF57 min
Jul 21, 5:12 PM EDTSevere Thunderstorm WarningBUF63 min
Jul 23, 12:14 PM EDTMesoscale DiscussionSPC91 min
Jul 23, 12:46 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 24, 4:14 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 28, 4:21 PM EDTMesoscale DiscussionSPC114 min
Jul 28, 6:26 PM EDTSevere Thunderstorm WarningBUF31 min
Jul 28, 7:30 PM EDTSevere Thunderstorm WarningBUF60 min
Aug 5, 7:38 PM EDTMesoscale DiscussionSPC2 hr
Aug 15, 10:29 PM EDTSpecial Weather StatementBUF91 min
Aug 16, 1:30 AM EDTSevere Thunderstorm WarningBUF29 min
Aug 16, 2:27 AM EDTSpecial Weather StatementBUF63 min
Aug 19, 5:08 PM EDTSevere Thunderstorm WarningBUF67 min
Aug 19, 6:51 PM EDTSevere Thunderstorm WarningBUF28 min
Aug 19, 9:27 PM EDTSpecial Weather StatementBUF63 min
Sep 7, 6:42 PM EDTSpecial Weather StatementBUF63 min
Sep 7, 6:50 PM EDTSpecial Weather StatementBUF55 min
Sep 7, 8:35 PM EDTSevere Thunderstorm WarningBUF42 min
Sep 7, 9:30 PM EDTSpecial Weather StatementBUF60 min
Oct 9, 3:44 AM EDTFrost AdvisoryBUF29 hr
Oct 12, 3:26 AM EDTFrost AdvisoryBUF30 hr
Oct 26, 6:05 PM EDTSevere Thunderstorm WarningBUF41 min
Nov 12, 6:53 PM ESTDense Fog AdvisoryBUF16 hr
Nov 16, 3:18 PM ESTWind AdvisoryBUF32 hr
Nov 24, 3:48 PM ESTLake Effect Snow WatchBUF24 hr
Nov 25, 3:54 AM ESTLake Effect Snow WarningBUF59 hr
Nov 27, 12:16 AM ESTMesoscale DiscussionSPC4 hr
Nov 30, 11:41 AM ESTLake Effect Snow WatchBUF16 hr
Dec 1, 4:04 AM ESTLake Effect Snow WarningBUF57 hr
Dec 2, 12:53 AM ESTMesoscale DiscussionSPC6 hr
Dec 5, 3:55 AM ESTLake Effect Snow WarningBUF4 days
Dec 5, 3:55 AM ESTLake Effect Snow AdvisoryBUF72 hr
Dec 10, 2:46 PM ESTWinter Weather AdvisoryBUF13 hr
Dec 12, 3:28 PM ESTLake Effect Snow WarningBUF5 days
Dec 13, 4:20 AM ESTLake Effect Snow AdvisoryBUF48 hr
Dec 15, 3:40 PM ESTLake Effect Snow AdvisoryBUF28 hr
Dec 17, 2:16 PM ESTLake Effect Snow AdvisoryBUF17 hr
Dec 22, 8:06 PM ESTWinter Weather AdvisoryBUF9 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 archive20092011

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.