Weather alerts in Lewis County, New York, 2013

147 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Lewis County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts: 147
Warnings: 40
Watches: 25
Advisories: 43
Busiest month: January22 alerts
Busiest day: September 2, 201310 alerts

Over time

By month

Warning verification

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

Lewis County, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	17	11	35%	15	93%	20 min
Flash flood warnings	0			0

Each office's whole area, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Buffalo, NY: tornado warnings	2	0	100%	0
NWS Buffalo, NY: severe thunderstorm warnings	110	70	36%	168	85%	22 min
NWS Buffalo, NY: flash flood warnings	10	4	60%	10	90%	46 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, 4:15 AM EST	Lake Effect Snow Advisory	BUF	25 hr
Jan 3, 3:42 PM EST	Wind Advisory	BUF	26 hr
Jan 8, 3:57 PM EST	Wind Advisory	BUF	28 hr
Jan 9, 9:54 PM EST	Special Weather Statement	BUF	36 min
Jan 14, 2:50 AM EST	Special Weather Statement	BUF	70 min
Jan 18, 11:18 AM EST	Wind Advisory	BUF	25 hr
Jan 19, 12:38 PM EST	High Wind Warning	BUF	27 hr
Jan 19, 3:47 PM EST	Lake Effect Snow Advisory	BUF	37 hr
Jan 20, 3:45 PM EST	Wind Advisory	BUF	3 hr
Jan 21, 4:55 AM EST	Lake Effect Snow Warning	BUF	67 hr
Jan 22, 4:02 AM EST	Wind Chill Warning	BUF	29 hr
Jan 23, 3:46 PM EST	Wind Chill Advisory	BUF	20 hr
Jan 24, 3:32 PM EST	Wind Chill Advisory	BUF	12 hr
Jan 27, 3:24 PM EST	Winter Weather Advisory	BUF	37 hr
Jan 28, 11:55 AM EST	Mesoscale Discussion	SPC	6 hr
Jan 29, 12:24 PM EST	Winter Weather Advisory	BUF	8 hr
Jan 29, 4:06 PM EST	Wind Advisory	BUF	48 hr
Jan 29, 4:08 PM EST	Lake Effect Snow Watch	BUF	21 hr
Jan 30, 4:27 AM EST	Flood Watch	BUF	27 hr
Jan 30, 12:47 PM EST	High Wind Warning	BUF	27 hr
Jan 30, 12:48 PM EST	Lake Effect Snow Warning	BUF	3 days
Jan 31, 4:05 PM EST	Lake Effect Snow Watch	BUF	24 hr
Feb 1, 3:51 PM EST	Lake Effect Snow Advisory	BUF	29 hr
Feb 3, 10:34 AM EST	Lake Effect Snow Advisory	BUF	35 hr
Feb 6, 3:51 PM EST	Winter Storm Watch	BUF	19 hr
Feb 7, 3:54 AM EST	Winter Storm Warning	BUF	48 hr
Feb 10, 12:36 PM EST	Winter Weather Advisory	BUF	21 hr
Feb 11, 12:48 PM EST	Lake Effect Snow Advisory	BUF	21 hr
Feb 17, 6:51 PM EST	Wind Chill Advisory	BUF	13 hr
Feb 18, 3:45 PM EST	Lake Effect Snow Watch	BUF	13 hr
Feb 19, 4:37 AM EST	Lake Effect Snow Warning	BUF	47 hr
Feb 19, 7:44 AM EST	Winter Weather Advisory	BUF	8 hr
Feb 20, 9:36 PM EST	Winter Weather Advisory	BUF	6 hr
Feb 26, 1:43 PM EST	Winter Weather Advisory	BUF	23 hr
Mar 17, 4:03 AM EDT	Winter Weather Advisory	BUF	54 hr
Mar 18, 3:52 AM EDT	Lake Effect Snow Watch	BUF	25 hr
Mar 18, 3:55 AM EDT	Wind Advisory	BUF	24 hr
Mar 18, 4:09 PM EDT	Winter Storm Warning	BUF	28 hr
Mar 19, 4:33 AM EDT	Lake Effect Snow Warning	BUF	3 days
Mar 31, 4:00 PM EDT	Lake Effect Snow Watch	BUF	20 hr
Apr 1, 12:16 PM EDT	Lake Effect Snow Advisory	BUF	42 hr
Apr 7, 3:30 AM EDT	Wind Advisory	BUF	12 hr
Apr 10, 12:35 PM EDT	Winter Weather Advisory	BUF	51 hr
Apr 18, 3:59 AM EDT	Wind Advisory	BUF	43 hr
May 21, 1:27 AM EDT	Severe Thunderstorm Warning	BUF	48 min
May 21, 1:49 AM EDT	Severe Thunderstorm Warning	BUF	41 min
May 21, 1:59 AM EDT	Special Weather Statement	BUF	61 min
May 21, 2:13 AM EDT	Severe Thunderstorm Warning	BUF	32 min
May 21, 1:40 PM EDT	Severe Thunderstorm Watch	SPC	10 hr
May 21, 7:14 PM EDT	Special Weather Statement	BUF	31 min
May 21, 10:56 PM EDT	Special Weather Statement	BUF	64 min
May 22, 2:46 PM EDT	Mesoscale Discussion	SPC	119 min
May 22, 3:41 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 22, 4:28 PM EDT	Mesoscale Discussion	SPC	92 min
May 22, 8:21 PM EDT	Mesoscale Discussion	SPC	54 min
May 22, 9:33 PM EDT	Severe Thunderstorm Warning	BUF	57 min
May 23, 10:57 AM EDT	Mesoscale Discussion	SPC	3 hr
May 23, 12:56 PM EDT	Severe Thunderstorm Warning	BUF	64 min
May 26, 7:32 AM EDT	Frost Advisory	BUF	24 hr
May 26, 7:32 AM EDT	Freeze Warning	BUF	24 hr
May 27, 3:46 PM EDT	Frost Advisory	BUF	13 hr
May 29, 3:19 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 1, 5:50 PM EDT	Severe Thunderstorm Warning	BUF	55 min
Jun 1, 6:40 PM EDT	Mesoscale Discussion	SPC	95 min
Jun 1, 6:44 PM EDT	Severe Thunderstorm Warning	BUF	31 min
Jun 1, 7:02 PM EDT	Special Weather Statement	ALY	43 min
Jun 1, 7:18 PM EDT	Severe Thunderstorm Warning	BUF	57 min
Jun 2, 3:01 PM EDT	Special Weather Statement	BUF	59 min
Jun 2, 4:03 PM EDT	Special Weather Statement	BUF	27 min
Jun 16, 10:19 PM EDT	Special Weather Statement	BUF	41 min
Jun 25, 12:22 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 26, 3:52 PM EDT	Mesoscale Discussion	SPC	113 min
Jun 26, 4:13 PM EDT	Flood Watch	BUF	54 hr
Jun 29, 12:58 PM EDT	Special Weather Statement	BUF	77 min
Jul 2, 4:25 PM EDT	Areal Flood Advisory	BUF	3 hr
Jul 5, 1:59 PM EDT	Mesoscale Discussion	SPC	61 min
Jul 5, 2:55 PM EDT	Special Weather Statement	BUF	35 min
Jul 5, 2:59 PM EDT	Severe Thunderstorm Warning	BUF	61 min
Jul 9, 3:32 PM EDT	Flash Flood Watch	BUF	10 hr
Jul 10, 9:02 PM EDT	Mesoscale Discussion	SPC	88 min
Jul 17, 1:52 PM EDT	Mesoscale Discussion	SPC	53 min
Jul 17, 2:29 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 17, 8:28 PM EDT	Mesoscale Discussion	SPC	62 min
Jul 19, 6:06 PM EDT	Mesoscale Discussion	SPC	114 min
Jul 19, 7:52 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 19, 8:03 PM EDT	Severe Thunderstorm Warning	BUF	57 min
Jul 19, 8:58 PM EDT	Severe Thunderstorm Warning	BUF	32 min
Aug 3, 8:24 PM EDT	Special Weather Statement	BUF	51 min
Aug 22, 2:03 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 22, 5:21 PM EDT	Special Weather Statement	BUF	24 min
Sep 2, 12:20 AM EDT	Severe Thunderstorm Warning	BUF	55 min
Sep 2, 3:18 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Sep 2, 4:25 PM EDT	Severe Thunderstorm Warning	BUF	65 min
Sep 2, 4:39 PM EDT	Severe Thunderstorm Warning	BUF	51 min
Sep 2, 4:47 PM EDT	Special Weather Statement	ALY	28 min
Sep 2, 4:57 PM EDT	Severe Thunderstorm Warning	BUF	33 min
Sep 2, 5:24 PM EDT	Severe Thunderstorm Warning	BUF	36 min
Sep 2, 5:35 PM EDT	Severe Thunderstorm Warning	BUF	25 min
Sep 2, 5:36 PM EDT	Areal Flood Advisory	BUF	3 hr
Sep 2, 6:52 PM EDT	Mesoscale Discussion	SPC	113 min
Sep 4, 4:25 PM EDT	Frost Advisory	BUF	39 hr
Sep 5, 7:23 PM EDT	Freeze Warning	BUF	12 hr
Sep 8, 4:00 AM EDT	Frost Advisory	BUF	28 hr
Sep 10, 6:22 AM EDT	Mesoscale Discussion	SPC	53 min
Sep 10, 6:53 AM EDT	Special Weather Statement	BUF	67 min
Sep 11, 12:33 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Sep 16, 4:19 AM EDT	Freeze Warning	BUF	28 hr
Sep 23, 3:48 AM EDT	Frost Advisory	BUF	29 hr
Sep 24, 1:31 PM EDT	Frost Advisory	BUF	17 hr
Oct 7, 4:40 AM EDT	Wind Advisory	BUF	6 hr
Oct 7, 10:30 AM EDT	Special Weather Statement	BUF	60 min
Oct 7, 10:36 AM EDT	Mesoscale Discussion	SPC	114 min
Oct 7, 11:33 AM EDT	Special Weather Statement	BUF	57 min
Oct 8, 7:19 PM EDT	Frost Advisory	BUF	13 hr
Oct 22, 4:45 AM EDT	Lake Effect Snow Watch	BUF	11 hr
Oct 22, 4:00 PM EDT	Lake Effect Snow Warning	BUF	46 hr
Oct 30, 4:50 AM EDT	High Wind Watch	BUF	30 hr
Oct 31, 4:51 AM EDT	High Wind Warning	BUF	38 hr
Nov 16, 3:05 PM EST	High Wind Watch	BUF	21 hr
Nov 16, 3:05 PM EST	High Wind Warning	BUF	43 hr
Nov 18, 1:15 AM EST	Special Weather Statement	BUF	60 min
Nov 18, 9:41 AM EST	Wind Advisory	BUF	6 hr
Nov 22, 3:32 PM EST	Lake Effect Snow Advisory	BUF	60 hr
Nov 22, 3:32 PM EST	Winter Weather Advisory	BUF	12 hr
Nov 24, 10:16 PM EST	Winter Storm Watch	BUF	29 hr
Nov 25, 3:39 PM EST	Winter Storm Warning	BUF	45 hr
Dec 8, 4:35 AM EST	Winter Weather Advisory	BUF	32 hr
Dec 8, 12:52 PM EST	Lake Effect Snow Watch	BUF	26 hr
Dec 9, 3:02 PM EST	Lake Effect Snow Warning	BUF	4 days
Dec 11, 8:32 AM EST	Mesoscale Discussion	SPC	4 hr
Dec 11, 4:00 PM EST	Lake Effect Snow Watch	BUF	8 hr
Dec 12, 3:51 PM EST	Winter Weather Advisory	BUF	60 hr
Dec 14, 3:29 AM EST	Winter Storm Warning	BUF	28 hr
Dec 14, 8:16 PM EST	Mesoscale Discussion	SPC	6 hr
Dec 15, 4:06 AM EST	Lake Effect Snow Advisory	BUF	36 hr
Dec 15, 5:26 PM EST	Lake Effect Snow Warning	BUF	10 hr
Dec 16, 9:33 PM EST	Wind Chill Advisory	BUF	9 hr
Dec 17, 3:28 AM EST	Lake Effect Snow Warning	BUF	41 hr
Dec 19, 12:49 PM EST	Flood Watch	BUF	3 days
Dec 19, 12:54 PM EST	Winter Storm Watch	BUF	15 hr
Dec 20, 3:47 AM EST	Ice Storm Warning	BUF	63 hr
Dec 22, 4:55 AM EST	Mesoscale Discussion	SPC	2 hr
Dec 25, 12:40 PM EST	Lake Effect Snow Watch	BUF	15 hr
Dec 26, 3:30 AM EST	Lake Effect Snow Warning	BUF	36 hr
Dec 27, 2:04 AM EST	Mesoscale Discussion	SPC	6 hr
Dec 30, 3:53 AM EST	Lake Effect Snow Advisory	BUF	52 hr
Dec 30, 4:02 PM EST	Lake Effect Snow Warning	BUF	48 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	17
Severe Thunderstorm Watch	7
Mesoscale Discussion	21
Special Weather Statement	18
Flooding
Flash Flood Watch	1
Flood Watch	3
Areal Flood Advisory	2
Winter
Ice Storm Warning	1
Lake Effect Snow Warning	10
Winter Storm Warning	4
Lake Effect Snow Watch	9
Winter Storm Watch	3
Lake Effect Snow Advisory	9
Winter Weather Advisory	11
Cold
Freeze Warning	3
Wind Chill Warning	1
Frost Advisory	7
Wind Chill Advisory	4
Wind and dust
High Wind Warning	4
High Wind Watch	2
Wind Advisory	10

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2012 2014

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.