Alert archive / New York / Cattaraugus County

Weather alerts in Cattaraugus County, New York, 2017

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

Cattaraugus County and its neighbors

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

Alerts: 156
Warnings: 60
Watches: 27
Advisories: 26
Busiest month: May22 alerts
Busiest day: June 18, 20178 alerts

Over time

By month

Warning verification

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

2 of 3 tornado warnings covering Cattaraugus County in 2017 had a tornado report inside them.

Cattaraugus County, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	2	33%	0
Severe thunderstorm warnings	31	26	16%	35	89%	31 min
Flash flood warnings	4	2	50%	1	100%	31 min

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 2, 5:55 PM EST	Lake Effect Snow Watch	BUF	21 hr
Jan 3, 3:01 PM EST	Lake Effect Snow Warning	BUF	5 days
Jan 3, 3:13 PM EST	Wind Advisory	BUF	30 hr
Jan 6, 2:37 PM EST	Lake Effect Snow Watch	BUF	20 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, 5:57 PM EST	Flood Watch	BUF	57 hr
Jan 10, 6:13 PM EST	Mesoscale Discussion	SPC	6 hr
Jan 12, 5:38 AM EST	River Flood Warning	BUF	3 days
Jan 12, 5:38 AM EST	River Flood Warning	BUF	48 hr
Jan 12, 3:25 PM EST	Areal Flood Warning	BUF	12 hr
Jan 12, 5:31 PM EST	Areal Flood Warning	BUF	6 hr
Jan 12, 5:38 PM EST	River Flood Warning	BUF	11 hr
Jan 16, 3:24 AM EST	Freezing Rain Advisory	BUF	40 hr
Jan 23, 3:42 AM EST	Winter Weather Advisory	BUF	39 hr
Jan 25, 3:40 AM EST	Lake Effect Snow Watch	BUF	57 hr
Jan 25, 4:01 PM EST	Lake Effect Snow Warning	BUF	4 days
Jan 27, 5:14 PM EST	Special Weather Statement	BUF	76 min
Jan 30, 12:47 PM EST	Winter Weather Advisory	BUF	44 hr
Feb 1, 8:09 AM EST	Special Weather Statement	BUF	81 min
Feb 2, 9:49 AM EST	Lake Effect Snow Advisory	BUF	25 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 10, 2:19 PM EST	Winter Storm Watch	BUF	24 hr
Feb 11, 4:19 AM EST	Winter Weather Advisory	BUF	55 hr
Feb 11, 2:14 PM EST	Winter Storm Warning	BUF	45 hr
Feb 14, 4:07 AM EST	Lake Effect Snow Watch	BUF	24 hr
Feb 15, 3:47 AM EST	Lake Effect Snow Warning	BUF	34 hr
Feb 28, 2:51 PM EST	Wind Advisory	BUF	43 hr
Mar 1, 2:19 AM EST	Mesoscale Discussion	SPC	86 min
Mar 1, 1:13 PM EST	High Wind Warning	BUF	15 hr
Mar 4, 8:17 AM EST	Special Weather Statement	BUF	58 min
Mar 7, 9:43 AM EST	High Wind Warning	BUF	36 hr
Mar 7, 9:43 AM EST	Wind Advisory	BUF	36 hr
Mar 11, 9:52 AM EST	Special Weather Statement	BUF	53 min
Mar 11, 2:42 PM EST	Winter Storm Watch	BUF	37 hr
Mar 12, 3:07 PM EDT	Winter Storm Warning	BUF	3 days
Mar 18, 6:31 AM EDT	Freezing Rain Advisory	BUF	4 hr
Mar 23, 1:22 PM EDT	Winter Weather Advisory	BUF	23 hr
Apr 3, 1:56 PM EDT	Wind Advisory	BUF	30 hr
Apr 3, 2:55 PM EDT	Flood Watch	BUF	4 days
Apr 6, 1:52 PM EDT	Winter Weather Advisory	BUF	20 hr
Apr 16, 2:15 PM EDT	Mesoscale Discussion	SPC	3 hr
Apr 20, 4:59 PM EDT	Special Weather Statement	BUF	31 min
Apr 20, 8:06 PM EDT	Special Weather Statement	BUF	54 min
Apr 30, 5:54 PM EDT	Special Weather Statement	BUF	36 min
May 1, 6:16 AM EDT	Flood Watch	BUF	13 hr
May 1, 1:41 PM EDT	Mesoscale Discussion	SPC	64 min
May 1, 2:12 PM EDT	Tornado Watch	SPC	8 hr
May 1, 3:06 PM EDT	Severe Thunderstorm Warning	BUF	54 min
May 1, 3:50 PM EDT	Severe Thunderstorm Warning	BUF	55 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 18, 1:38 PM EDT	Severe Thunderstorm Warning	BUF	52 min
May 18, 2:04 PM EDT	Mesoscale Discussion	SPC	116 min
May 18, 3:17 PM EDT	Severe Thunderstorm Warning	BUF	43 min
May 18, 3:36 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 18, 5:36 PM EDT	Mesoscale Discussion	SPC	84 min
May 18, 9:01 PM EDT	Severe Thunderstorm Warning	BUF	15 min
May 18, 11:33 PM EDT	Severe Thunderstorm Warning	BUF	57 min
May 28, 3:57 PM EDT	Special Weather Statement	BUF	78 min
May 28, 5:26 PM EDT	Special Weather Statement	BUF	34 min
May 28, 6:05 PM EDT	Special Weather Statement	BUF	55 min
May 28, 6:11 PM EDT	Severe Thunderstorm Warning	BUF	49 min
May 28, 6:28 PM EDT	Severe Thunderstorm Warning	BUF	47 min
May 28, 7:39 PM EDT	Mesoscale Discussion	SPC	96 min
May 30, 12:39 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 30, 1:34 PM EDT	Severe Thunderstorm Warning	BUF	30 min
Jun 13, 2:33 PM EDT	Special Weather Statement	BUF	42 min
Jun 13, 3:15 PM EDT	Special Weather Statement	BUF	60 min
Jun 15, 11:41 AM EDT	Flash Flood Watch	BUF	11 hr
Jun 15, 3:46 PM EDT	Special Weather Statement	BUF	3 hr
Jun 15, 5:19 PM EDT	Flash Flood Warning	BUF	7 hr
Jun 17, 10:50 PM EDT	Flash Flood Watch	BUF	22 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 18, 3:45 PM EDT	Severe Thunderstorm Warning	BUF	60 min
Jun 18, 3:53 PM EDT	Severe Thunderstorm Warning	BUF	67 min
Jun 18, 4:30 PM EDT	Mesoscale Discussion	SPC	90 min
Jun 18, 4:40 PM EDT	Severe Thunderstorm Warning	BUF	65 min
Jun 18, 7:36 PM EDT	Severe Thunderstorm Warning	BUF	54 min
Jun 18, 8:13 PM EDT	Severe Thunderstorm Warning	BUF	29 min
Jun 22, 1:18 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 30, 7:47 PM EDT	Flash Flood Watch	BUF	8 hr
Jul 5, 8:02 PM EDT	Special Weather Statement	BUF	43 min
Jul 5, 9:14 PM EDT	Special Weather Statement	BUF	91 min
Jul 8, 7:58 AM EDT	Severe Thunderstorm Warning	BUF	47 min
Jul 12, 7:43 AM EDT	Special Weather Statement	BUF	62 min
Jul 12, 1:53 PM EDT	Flash Flood Watch	BUF	38 hr
Jul 13, 6:10 PM EDT	Special Weather Statement	BUF	65 min
Jul 20, 11:36 AM EDT	Mesoscale Discussion	SPC	114 min
Jul 20, 12:31 PM EDT	Severe Thunderstorm Warning	BUF	59 min
Jul 20, 12:36 PM EDT	Tornado Warning	BUF	24 min
Jul 20, 12:55 PM EDT	Tornado Warning	BUF	35 min
Jul 20, 1:23 PM EDT	Severe Thunderstorm Warning	BUF	52 min
Jul 20, 2:07 PM EDT	Severe Thunderstorm Warning	BUF	38 min
Aug 2, 4:10 PM EDT	Special Weather Statement	BUF	35 min
Aug 2, 5:57 PM EDT	Flash Flood Warning	BUF	3 hr
Aug 4, 11:38 AM EDT	Mesoscale Discussion	SPC	2 hr
Aug 4, 12:55 PM EDT	Severe Thunderstorm Warning	BUF	50 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, 7:41 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 21, 6:51 AM EDT	Special Weather Statement	BUF	39 min
Aug 21, 7:42 AM EDT	Special Weather Statement	BUF	78 min
Aug 22, 11:55 AM EDT	Mesoscale Discussion	SPC	3 hr
Aug 22, 12:05 PM EDT	Severe Thunderstorm Warning	BUF	55 min
Aug 22, 12:23 PM EDT	Tornado Watch	SPC	9 hr
Aug 22, 12:34 PM EDT	Tornado Warning	BUF	26 min
Aug 22, 12:55 PM EDT	Severe Thunderstorm Warning	BUF	65 min
Aug 22, 2:48 PM EDT	Severe Thunderstorm Warning	BUF	57 min
Aug 22, 3:20 PM EDT	Severe Thunderstorm Warning	BUF	55 min
Sep 4, 6:50 PM EDT	Mesoscale Discussion	SPC	115 min
Sep 4, 10:12 PM EDT	Severe Thunderstorm Warning	BUF	63 min
Sep 4, 10:59 PM EDT	Severe Thunderstorm Warning	BUF	61 min
Sep 4, 11:33 PM EDT	Severe Thunderstorm Warning	BUF	57 min
Sep 5, 12:07 AM EDT	Flash Flood Warning	BUF	3 hr
Sep 14, 3:45 AM EDT	Flash Flood Warning	BUF	3 hr
Sep 14, 5:42 AM EDT	Special Weather Statement	BUF	78 min
Sep 30, 4:36 AM EDT	Freeze Watch	BUF	9 hr
Sep 30, 1:42 PM EDT	Freeze Warning	BUF	18 hr
Oct 1, 2:49 PM EDT	Frost Advisory	BUF	17 hr
Oct 15, 3:03 PM EDT	Mesoscale Discussion	SPC	57 min
Oct 15, 3:56 PM EDT	Severe Thunderstorm Warning	BUF	49 min
Oct 15, 4:36 PM EDT	Severe Thunderstorm Warning	BUF	39 min
Oct 15, 4:57 PM EDT	Severe Thunderstorm Warning	BUF	63 min
Oct 15, 5:15 PM EDT	Severe Thunderstorm Warning	BUF	45 min
Oct 23, 4:35 AM EDT	Wind Advisory	BUF	27 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, 6:38 PM EST	Severe Thunderstorm Warning	BUF	67 min
Nov 5, 10:54 PM EST	River Flood Warning	BUF	11 hr
Nov 18, 2:40 PM EST	Winter Weather Advisory	BUF	42 hr
Dec 4, 3:38 AM EST	Winter Storm Watch	BUF	33 hr
Dec 5, 1:01 PM EST	Lake Effect Snow Warning	BUF	68 hr
Dec 9, 3:43 AM EST	Winter Storm Watch	BUF	10 hr
Dec 9, 1:59 PM EST	Lake Effect Snow Warning	BUF	38 hr
Dec 11, 3:48 AM EST	Winter Storm Watch	BUF	9 hr
Dec 11, 1:07 PM EST	Lake Effect Snow Warning	BUF	48 hr
Dec 13, 1:30 PM EST	Winter Weather Advisory	BUF	17 hr
Dec 14, 12:45 PM EST	Winter Storm Watch	BUF	15 hr
Dec 14, 9:46 PM EST	Lake Effect Snow Warning	BUF	42 hr
Dec 16, 12:09 AM EST	Special Weather Statement	BUF	81 min
Dec 21, 3:21 AM EST	Winter Weather Advisory	BUF	63 hr
Dec 22, 11:38 AM EST	Winter Weather Advisory	BUF	31 hr
Dec 23, 6:35 PM EST	Winter Storm Watch	BUF	9 hr
Dec 24, 4:00 AM EST	Lake Effect Snow Warning	BUF	4 days
Dec 25, 12:38 PM EST	Special Weather Statement	BUF	82 min
Dec 25, 2:03 PM EST	Special Weather Statement	BUF	57 min
Dec 25, 4:01 PM EST	Special Weather Statement	BUF	59 min
Dec 25, 8:01 PM EST	Mesoscale Discussion	SPC	4 hr
Dec 27, 4:13 AM EST	Wind Chill Advisory	BUF	47 hr
Dec 28, 3:49 AM EST	Winter Storm Watch	BUF	17 hr
Dec 28, 8:41 PM EST	Lake Effect Snow Warning	BUF	60 hr
Dec 30, 3:38 AM EST	Wind Chill Advisory	BUF	54 hr

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	31
Tornado Warning	3
Severe Thunderstorm Watch	4
Tornado Watch	2
Mesoscale Discussion	18
Special Weather Statement	25
Flooding
Areal Flood Warning	4
Flash Flood Warning	4
River Flood Warning	4
Flash Flood Watch	4
Flood Watch	4
Winter
Lake Effect Snow Warning	9
Winter Storm Warning	2
Lake Effect Snow Watch	4
Winter Storm Watch	8
Freezing Rain Advisory	3
Lake Effect Snow Advisory	1
Winter Weather Advisory	10
Cold
Freeze Warning	1
Freeze Watch	1
Frost Advisory	1
Wind Chill Advisory	2
Wind and dust
High Wind Warning	2
Wind Advisory	9

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.