Alert archive / New York / Niagara County

Weather alerts in Niagara County, New York, 2017

142 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Niagara County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts: 142
Warnings: 41
Watches: 25
Advisories: 41
Busiest month: May20 alerts
Busiest day: May 1, 20177 alerts

Over time

By month

Warning verification

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

Niagara County, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	13	7	46%	3	67%	39 min
Flash flood warnings	1	1	0%	0

Each office's whole area, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Buffalo, NY: tornado warnings	8	3	63%	3	100%	9 min
NWS Buffalo, NY: severe thunderstorm warnings	138	97	30%	385	91%	24 min
NWS Buffalo, NY: flash flood warnings	11	8	27%	36	100%	94 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.

Issued	Product	Office	Lasted
Jan 3, 3:13 PM EST	Wind Advisory	BUF	30 hr
Jan 9, 2:46 PM EST	Winter Weather Advisory	BUF	38 hr
Jan 9, 3:00 PM EST	Wind Advisory	BUF	43 hr
Jan 10, 2:45 PM EST	High Wind Warning	BUF	19 hr
Jan 16, 3:24 AM EST	Freezing Rain Advisory	BUF	40 hr
Jan 29, 4:49 PM EST	Special Weather Statement	BUF	56 min
Jan 29, 5:20 PM EST	Lake Effect Snow Advisory	BUF	7 hr
Feb 7, 3:44 AM EST	Wind Advisory	BUF	27 hr
Feb 7, 5:56 AM EST	Freezing Rain Advisory	BUF	13 hr
Feb 11, 4:19 AM EST	Winter Weather Advisory	BUF	55 hr
Feb 13, 4:08 AM EST	Lake Effect Snow Advisory	BUF	7 hr
Feb 15, 3:47 AM EST	Lake Effect Snow Advisory	BUF	34 hr
Feb 18, 3:31 AM EST	Wind Advisory	BUF	14 hr
Feb 22, 2:06 PM EST	Dense Fog Advisory	BUF	7 hr
Feb 22, 8:39 PM EST	Dense Fog Advisory	BUF	4 hr
Feb 24, 3:24 AM EST	Wind Advisory	BUF	42 hr
Feb 26, 3:01 AM EST	Special Weather Statement	BUF	74 min
Feb 28, 2:51 PM EST	Wind Advisory	BUF	43 hr
Mar 1, 1:13 PM EST	High Wind Warning	BUF	15 hr
Mar 6, 2:28 PM EST	High Wind Watch	BUF	19 hr
Mar 7, 9:43 AM EST	High Wind Warning	BUF	36 hr
Mar 11, 1:05 AM EST	Lake Effect Snow Advisory	BUF	9 hr
Mar 11, 2:42 PM EST	Winter Storm Watch	BUF	37 hr
Mar 12, 3:07 PM EDT	Winter Storm Warning	BUF	3 days
Apr 3, 1:56 PM EDT	Wind Advisory	BUF	30 hr
Apr 3, 2:55 PM EDT	Flood Watch	BUF	4 days
Apr 4, 4:39 AM EDT	High Wind Warning	BUF	15 hr
Apr 6, 1:52 PM EDT	Winter Weather Advisory	BUF	20 hr
Apr 22, 12:51 PM EDT	Areal Flood Warning	BUF	24 hr
Apr 29, 4:39 AM EDT	Lakeshore Flood Watch	BUF	9 hr
Apr 29, 1:32 PM EDT	Lakeshore Flood Warning	BUF	32 hr
Apr 30, 9:57 PM EDT	Special Weather Statement	BUF	48 min
Apr 30, 10:34 PM EDT	Severe Thunderstorm Warning	BUF	41 min
May 1, 6:16 AM EDT	Flood Watch	BUF	13 hr
May 1, 2:12 PM EDT	Tornado Watch	SPC	8 hr
May 1, 3:00 PM EDT	Severe Thunderstorm Warning	BUF	60 min
May 1, 3:47 PM EDT	Severe Thunderstorm Warning	BUF	58 min
May 1, 4:45 PM EDT	Areal Flood Warning	BUF	3 hr
May 2, 4:38 AM EDT	Wind Advisory	BUF	15 hr
May 4, 3:51 AM EDT	Lakeshore Flood Watch	BUF	20 hr
May 5, 12:12 AM EDT	Lakeshore Flood Warning	BUF	25 hr
May 6, 4:12 AM EDT	Lakeshore Flood Watch	BUF	10 hr
May 6, 1:46 PM EDT	Lakeshore Flood Warning	BUF	57 hr
May 7, 1:34 PM EDT	Frost Advisory	BUF	12 hr
May 8, 2:00 PM EDT	Frost Advisory	BUF	11 hr
May 9, 3:49 AM EDT	Frost Advisory	BUF	28 hr
May 17, 4:51 PM EDT	Wind Advisory	BUF	27 hr
May 23, 7:41 PM EDT	Lakeshore Flood Watch	BUF	8 hr
May 24, 4:07 AM EDT	Lakeshore Flood Warning	BUF	45 hr
May 24, 10:34 PM EDT	Beach Hazards Statement	BUF	23 hr
May 26, 1:02 AM EDT	Dense Fog Advisory	BUF	5 hr
Jun 4, 1:19 PM EDT	Lakeshore Flood Watch	BUF	15 hr
Jun 5, 4:02 AM EDT	Lakeshore Flood Warning	BUF	48 hr
Jun 5, 4:28 AM EDT	Dense Fog Advisory	BUF	3 hr
Jun 5, 8:00 AM EDT	Special Weather Statement	BUF	45 min
Jun 5, 10:27 PM EDT	Beach Hazards Statement	BUF	24 hr
Jun 12, 3:34 AM EDT	Lakeshore Flood Watch	BUF	43 hr
Jun 18, 12:31 PM EDT	Mesoscale Discussion	SPC	119 min
Jun 18, 1:37 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 24, 3:24 PM EDT	Special Weather Statement	BUF	51 min
Jun 24, 4:14 PM EDT	Special Weather Statement	BUF	31 min
Jun 24, 4:39 PM EDT	Special Weather Statement	BUF	36 min
Jun 24, 5:03 PM EDT	Special Weather Statement	BUF	27 min
Jun 24, 6:48 PM EDT	Special Weather Statement	BUF	27 min
Jun 25, 1:59 PM EDT	Special Weather Statement	BUF	61 min
Jul 1, 6:01 PM EDT	Special Weather Statement	BUF	44 min
Jul 7, 4:05 PM EDT	Special Weather Statement	BUF	55 min
Jul 12, 1:53 PM EDT	Flash Flood Watch	BUF	38 hr
Jul 13, 9:49 AM EDT	Flash Flood Warning	BUF	4 hr
Jul 13, 1:42 PM EDT	Areal Flood Warning	BUF	6 hr
Jul 14, 9:32 AM EDT	River Flood Warning	BUF	18 hr
Jul 20, 11:47 AM EDT	Special Weather Statement	BUF	58 min
Jul 20, 12:21 PM EDT	Severe Thunderstorm Warning	BUF	54 min
Jul 20, 12:31 PM EDT	Severe Thunderstorm Warning	BUF	59 min
Jul 23, 4:31 AM EDT	Beach Hazards Statement	BUF	18 hr
Jul 23, 4:31 AM EDT	Lakeshore Flood Watch	BUF	5 hr
Jul 23, 5:32 PM EDT	Special Weather Statement	BUF	88 min
Jul 24, 4:31 AM EDT	Lakeshore Flood Watch	BUF	9 hr
Jul 24, 1:10 PM EDT	Lakeshore Flood Warning	BUF	27 hr
Jul 24, 10:43 PM EDT	Beach Hazards Statement	BUF	17 hr
Jul 26, 5:01 PM EDT	Lakeshore Flood Watch	BUF	33 hr
Jul 31, 5:10 PM EDT	Special Weather Statement	BUF	50 min
Jul 31, 5:14 PM EDT	Severe Thunderstorm Warning	BUF	33 min
Aug 1, 4:19 PM EDT	Special Weather Statement	BUF	26 min
Aug 3, 2:42 PM EDT	Lakeshore Flood Warning	BUF	61 hr
Aug 3, 5:29 PM EDT	Severe Thunderstorm Warning	BUF	46 min
Aug 4, 1:13 PM EDT	Severe Thunderstorm Warning	BUF	62 min
Aug 4, 1:25 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 4, 3:46 PM EDT	Mesoscale Discussion	SPC	119 min
Aug 4, 5:00 PM EDT	Severe Thunderstorm Warning	BUF	45 min
Aug 4, 10:46 PM EDT	Beach Hazards Statement	BUF	24 hr
Aug 12, 3:38 PM EDT	Special Weather Statement	BUF	37 min
Aug 12, 5:10 PM EDT	Special Weather Statement	BUF	50 min
Aug 15, 1:05 PM EDT	Special Weather Statement	BUF	55 min
Aug 15, 1:38 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 22, 4:04 AM EDT	Wind Advisory	BUF	13 hr
Aug 22, 12:23 PM EDT	Tornado Watch	SPC	9 hr
Aug 22, 6:28 PM EDT	Severe Thunderstorm Warning	BUF	47 min
Aug 22, 7:13 PM EDT	Severe Thunderstorm Warning	BUF	22 min
Sep 6, 4:53 PM EDT	Special Weather Statement	BUF	37 min
Sep 27, 4:51 PM EDT	Beach Hazards Statement	BUF	3 hr
Sep 29, 10:56 AM EDT	Lakeshore Flood Warning	BUF	18 hr
Sep 29, 9:46 PM EDT	Beach Hazards Statement	BUF	16 hr
Oct 7, 1:40 PM EDT	Wind Advisory	BUF	15 hr
Oct 10, 1:33 PM EDT	Lakeshore Flood Warning	BUF	44 hr
Oct 13, 1:36 PM EDT	Lakeshore Flood Watch	BUF	24 hr
Oct 14, 1:32 PM EDT	Lakeshore Flood Warning	BUF	38 hr
Oct 14, 1:35 PM EDT	Wind Advisory	BUF	30 hr
Oct 15, 3:03 PM EDT	Mesoscale Discussion	SPC	57 min
Oct 15, 3:37 PM EDT	Severe Thunderstorm Warning	BUF	23 min
Oct 15, 3:56 PM EDT	Severe Thunderstorm Warning	BUF	49 min
Oct 16, 3:32 AM EDT	Frost Advisory	BUF	28 hr
Oct 28, 3:50 AM EDT	Lakeshore Flood Watch	BUF	25 hr
Oct 29, 4:24 AM EDT	Lakeshore Flood Warning	BUF	63 hr
Oct 29, 4:30 AM EDT	High Wind Warning	BUF	37 hr
Oct 29, 4:30 AM EDT	Wind Advisory	BUF	37 hr
Nov 4, 2:46 PM EDT	Flood Watch	BUF	33 hr
Nov 5, 5:00 PM EST	Areal Flood Warning	BUF	24 hr
Nov 5, 9:26 PM EST	River Flood Warning	BUF	41 hr
Nov 6, 5:33 AM EST	River Flood Warning	BUF	3 days
Nov 8, 3:28 AM EST	Lakeshore Flood Watch	BUF	11 hr
Nov 8, 2:22 PM EST	Lakeshore Flood Warning	BUF	48 hr
Nov 8, 2:23 PM EST	Wind Advisory	BUF	37 hr
Nov 15, 2:51 PM EST	Lakeshore Flood Warning	BUF	29 hr
Nov 17, 2:54 PM EST	Lakeshore Flood Watch	BUF	24 hr
Nov 18, 2:37 PM EST	Lakeshore Flood Warning	BUF	34 hr
Nov 21, 3:43 AM EST	Wind Advisory	BUF	13 hr
Dec 4, 3:38 AM EST	Winter Storm Watch	BUF	33 hr
Dec 11, 3:48 AM EST	Winter Storm Watch	BUF	9 hr
Dec 11, 1:07 PM EST	Winter Weather Advisory	BUF	45 hr
Dec 14, 12:45 PM EST	Winter Weather Advisory	BUF	51 hr
Dec 15, 5:42 PM EST	Mesoscale Discussion	SPC	4 hr
Dec 18, 9:04 AM EST	Winter Weather Advisory	BUF	92 min
Dec 18, 12:35 PM EST	Wind Advisory	BUF	30 hr
Dec 21, 3:21 AM EST	Winter Weather Advisory	BUF	63 hr
Dec 23, 6:35 PM EST	Winter Weather Advisory	BUF	54 hr
Dec 25, 3:36 AM EST	Special Weather Statement	BUF	114 min
Dec 26, 2:22 PM EST	Winter Weather Advisory	BUF	29 hr
Dec 27, 4:25 PM EST	Special Weather Statement	BUF	65 min
Dec 29, 3:40 AM EST	Winter Weather Advisory	BUF	48 hr
Dec 30, 3:38 AM EST	Wind Chill Advisory	BUF	54 hr
Dec 30, 5:59 PM EST	Special Weather Statement	BUF	91 min

By product

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

Product	Alerts
Severe storms
Severe Thunderstorm Warning	13
Severe Thunderstorm Watch	2
Tornado Watch	2
Mesoscale Discussion	5
Special Weather Statement	23
Flooding
Areal Flood Warning	4
Flash Flood Warning	1
River Flood Warning	3
Flash Flood Watch	1
Flood Watch	3
Winter
Winter Storm Warning	1
Winter Storm Watch	3
Freezing Rain Advisory	2
Lake Effect Snow Advisory	4
Winter Weather Advisory	10
Cold
Frost Advisory	4
Wind Chill Advisory	1
Wind and dust
High Wind Warning	5
High Wind Watch	1
Wind Advisory	16
Fog and smoke
Dense Fog Advisory	4
Coast and beach
Lakeshore Flood Warning	14
Lakeshore Flood Watch	13
Beach Hazards Statement	7

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2016 2018

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.