Alert archive / Pennsylvania / Union County

Weather alerts in Union County, Pennsylvania, 2021

155 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Union County and its neighbors

Each county as a circle sized by its count in 2021. Tap one for its archive.

Alerts: 155
Warnings: 35
Watches: 26
Advisories: 30
Busiest month: July48 alerts
Busiest day: June 13, 20217 alerts

Over time

By month

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, 3:16 PM EST	Winter Weather Advisory	CTP	32 hr
Jan 16, 11:15 PM EST	Special Weather Statement	CTP	30 min
Jan 25, 3:29 AM EST	Winter Weather Advisory	CTP	43 hr
Jan 26, 8:46 AM EST	Mesoscale Discussion	SPC	4 hr
Jan 26, 5:12 PM EST	Special Weather Statement	CTP	108 min
Jan 30, 3:24 PM EST	Winter Storm Warning	CTP	13 hr
Jan 31, 4:52 AM EST	Winter Storm Warning	CTP	48 hr
Feb 8, 1:58 PM EST	Winter Weather Advisory	CTP	22 hr
Feb 10, 4:33 AM EST	Winter Weather Advisory	CTP	28 hr
Feb 13, 2:53 PM EST	Winter Weather Advisory	CTP	17 hr
Feb 14, 3:46 PM EST	Winter Weather Advisory	CTP	38 hr
Feb 15, 3:28 PM EST	Ice Storm Warning	CTP	15 hr
Feb 15, 9:16 PM EST	Mesoscale Discussion	SPC	5 hr
Feb 16, 3:35 PM EST	Winter Storm Watch	CTP	23 hr
Feb 17, 2:39 PM EST	Winter Weather Advisory	CTP	22 hr
Feb 18, 12:25 PM EST	Winter Weather Advisory	CTP	22 hr
Feb 21, 2:29 PM EST	Winter Weather Advisory	CTP	23 hr
Feb 22, 7:48 AM EST	Mesoscale Discussion	SPC	4 hr
Feb 22, 8:15 AM EST	Snow Squall Warning	CTP	90 min
Mar 1, 2:33 AM EST	Dense Fog Advisory	CTP	5 hr
Mar 1, 3:40 AM EST	Wind Advisory	CTP	23 hr
Mar 13, 2:42 PM EST	Fire Weather Watch	CTP	13 hr
Mar 14, 4:19 AM EDT	Red Flag Warning	CTP	18 hr
Mar 25, 11:51 AM EDT	Wind Advisory	CTP	30 hr
Mar 28, 3:04 PM EDT	Special Weather Statement	CTP	41 min
Mar 28, 3:52 PM EDT	Special Weather Statement	CTP	38 min
Apr 21, 2:11 AM EDT	Freeze Watch	CTP	5 hr
Apr 21, 7:07 AM EDT	Freeze Warning	CTP	26 hr
Apr 22, 9:16 AM EDT	Freeze Watch	CTP	4 hr
Apr 22, 1:06 PM EDT	Freeze Warning	CTP	20 hr
Apr 29, 8:21 PM EDT	Wind Advisory	CTP	30 hr
May 4, 3:28 PM EDT	Mesoscale Discussion	SPC	62 min
May 8, 4:05 AM EDT	Frost Advisory	CTP	28 hr
May 23, 1:20 PM EDT	Mesoscale Discussion	SPC	115 min
May 26, 12:16 PM EDT	Mesoscale Discussion	SPC	119 min
May 26, 12:59 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 13, 2:38 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 13, 3:26 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 13, 4:22 PM EDT	Severe Thunderstorm Warning	CTP	83 min
Jun 13, 4:56 PM EDT	Mesoscale Discussion	SPC	94 min
Jun 13, 5:07 PM EDT	Special Weather Statement	CTP	23 min
Jun 13, 5:57 PM EDT	Special Weather Statement	CTP	18 min
Jun 13, 7:21 PM EDT	Mesoscale Discussion	SPC	84 min
Jun 14, 11:31 AM EDT	Mesoscale Discussion	SPC	89 min
Jun 14, 2:06 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 14, 2:33 PM EDT	Severe Thunderstorm Warning	CTP	57 min
Jun 14, 3:18 PM EDT	Severe Thunderstorm Warning	CTP	57 min
Jun 21, 1:51 PM EDT	Mesoscale Discussion	SPC	114 min
Jun 21, 2:20 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 21, 4:21 PM EDT	Special Weather Statement	CTP	24 min
Jun 29, 8:56 PM EDT	Heat Advisory	CTP	22 hr
Jun 30, 12:46 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 30, 3:29 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 30, 3:46 PM EDT	Severe Thunderstorm Warning	CTP	44 min
Jun 30, 4:41 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 2, 1:05 PM EDT	Special Weather Statement	CTP	25 min
Jul 2, 1:49 PM EDT	Special Weather Statement	CTP	26 min
Jul 2, 2:12 PM EDT	Special Weather Statement	CTP	48 min
Jul 2, 3:13 PM EDT	Mesoscale Discussion	SPC	92 min
Jul 2, 5:52 PM EDT	Special Weather Statement	CTP	38 min
Jul 6, 12:33 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 7, 3:31 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 7, 6:56 PM EDT	Severe Thunderstorm Warning	CTP	49 min
Jul 7, 7:11 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 7, 7:31 PM EDT	Severe Thunderstorm Warning	CTP	44 min
Jul 7, 10:14 PM EDT	Special Weather Statement	CTP	46 min
Jul 7, 10:33 PM EDT	Special Weather Statement	CTP	27 min
Jul 7, 11:02 PM EDT	Special Weather Statement	CTP	28 min
Jul 9, 4:35 PM EDT	Mesoscale Discussion	SPC	115 min
Jul 11, 2:40 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 11, 5:41 PM EDT	Mesoscale Discussion	SPC	94 min
Jul 11, 7:31 PM EDT	Severe Thunderstorm Warning	CTP	44 min
Jul 11, 8:03 PM EDT	Severe Thunderstorm Warning	CTP	42 min
Jul 11, 9:07 PM EDT	Areal Flood Advisory	CTP	2 hr
Jul 12, 1:21 PM EDT	Flash Flood Watch	CTP	13 hr
Jul 12, 1:32 PM EDT	Mesoscale Discussion	SPC	88 min
Jul 13, 12:39 PM EDT	Flash Flood Watch	CTP	11 hr
Jul 13, 12:48 PM EDT	Mesoscale Discussion	SPC	87 min
Jul 13, 1:37 PM EDT	Severe Thunderstorm Watch	SPC	10 hr
Jul 13, 4:07 PM EDT	Mesoscale Discussion	SPC	113 min
Jul 13, 6:44 PM EDT	Mesoscale Discussion	SPC	91 min
Jul 13, 7:59 PM EDT	Severe Thunderstorm Warning	CTP	46 min
Jul 13, 8:17 PM EDT	Severe Thunderstorm Warning	CTP	43 min
Jul 13, 9:12 PM EDT	Mesoscale Discussion	SPC	93 min
Jul 13, 9:30 PM EDT	Severe Thunderstorm Warning	CTP	60 min
Jul 13, 10:18 PM EDT	Areal Flood Advisory	CTP	117 min
Jul 13, 10:18 PM EDT	Severe Thunderstorm Warning	CTP	57 min
Jul 16, 4:20 PM EDT	Flash Flood Warning	CTP	85 min
Jul 16, 6:31 PM EDT	Special Weather Statement	CTP	29 min
Jul 16, 6:57 PM EDT	Special Weather Statement	CTP	33 min
Jul 16, 7:15 PM EDT	Areal Flood Advisory	CTP	2 hr
Jul 17, 12:00 PM EDT	Mesoscale Discussion	SPC	3 hr
Jul 17, 1:13 PM EDT	Severe Thunderstorm Watch	SPC	10 hr
Jul 17, 4:38 PM EDT	Mesoscale Discussion	SPC	97 min
Jul 17, 4:50 PM EDT	Severe Thunderstorm Warning	CTP	55 min
Jul 17, 4:56 PM EDT	Areal Flood Advisory	CTP	61 min
Jul 17, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	61 min
Jul 17, 5:56 PM EDT	Flash Flood Warning Considerable damage threat	CTP	3 hr
Jul 19, 4:24 PM EDT	Special Weather Statement	CTP	21 min
Jul 19, 5:43 PM EDT	Special Weather Statement	CTP	17 min
Jul 19, 5:58 PM EDT	Special Weather Statement	CTP	32 min
Jul 21, 2:53 PM EDT	Special Weather Statement	CTP	37 min
Jul 29, 2:23 PM EDT	Tornado Watch	SPC	8 hr
Aug 1, 4:52 PM EDT	Special Weather Statement	CTP	38 min
Aug 10, 12:55 PM EDT	Heat Advisory	CTP	30 hr
Aug 10, 12:55 PM EDT	Heat Advisory	CTP	54 hr
Aug 11, 12:18 AM EDT	Special Weather Statement	CTP	27 min
Aug 11, 3:38 AM EDT	Excessive Heat Warning	CTP	39 hr
Aug 11, 2:03 PM EDT	Mesoscale Discussion	SPC	87 min
Aug 11, 3:02 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 11, 4:13 PM EDT	Special Weather Statement	CTP	32 min
Aug 11, 4:23 PM EDT	Severe Thunderstorm Warning	CTP	59 min
Aug 12, 3:33 AM EDT	Heat Advisory	CTP	39 hr
Aug 12, 12:19 PM EDT	Mesoscale Discussion	SPC	116 min
Aug 12, 1:11 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Aug 12, 6:22 PM EDT	Mesoscale Discussion	SPC	83 min
Aug 12, 8:33 PM EDT	Special Weather Statement	CTP	12 min
Aug 12, 8:42 PM EDT	Severe Thunderstorm Warning	CTP	48 min
Aug 12, 9:01 PM EDT	Severe Thunderstorm Warning	CTP	44 min
Aug 12, 9:23 PM EDT	Severe Thunderstorm Warning	CTP	67 min
Aug 13, 3:29 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 13, 5:38 PM EDT	Special Weather Statement	CTP	37 min
Aug 13, 7:14 PM EDT	Mesoscale Discussion	SPC	61 min
Aug 17, 2:13 PM EDT	Flash Flood Watch	CTP	34 hr
Aug 18, 10:58 AM EDT	Mesoscale Discussion	SPC	92 min
Aug 18, 11:37 AM EDT	Tornado Watch	SPC	11 hr
Aug 18, 3:29 PM EDT	Mesoscale Discussion	SPC	91 min
Aug 18, 4:57 PM EDT	Mesoscale Discussion	SPC	93 min
Aug 30, 4:11 AM EDT	Flash Flood Watch	CTP	67 hr
Sep 1, 9:45 AM EDT	Areal Flood Advisory	CTP	2 hr
Sep 1, 11:04 AM EDT	River Flood Warning	CTP	17 hr
Sep 1, 12:04 PM EDT	Flash Flood Warning Considerable damage threat	CTP	6 hr
Sep 1, 5:41 PM EDT	Areal Flood Warning	CTP	14 hr
Sep 13, 5:53 PM EDT	Severe Thunderstorm Watch	SPC	3 hr
Sep 13, 7:07 PM EDT	Mesoscale Discussion	SPC	113 min
Sep 15, 10:33 AM EDT	Mesoscale Discussion	SPC	2 hr
Sep 15, 11:55 AM EDT	Severe Thunderstorm Watch	SPC	8 hr
Sep 15, 2:45 PM EDT	Special Weather Statement	CTP	30 min
Sep 15, 2:54 PM EDT	Severe Thunderstorm Warning	CTP	36 min
Sep 15, 3:13 PM EDT	Special Weather Statement	CTP	17 min
Sep 15, 3:24 PM EDT	Severe Thunderstorm Warning	CTP	36 min
Sep 15, 4:38 PM EDT	Mesoscale Discussion	SPC	67 min
Sep 22, 3:42 AM EDT	Flash Flood Watch	CTP	33 hr
Sep 23, 7:36 AM EDT	Areal Flood Advisory	CTP	3 hr
Sep 23, 10:10 AM EDT	River Flood Warning	CTP	26 hr
Sep 23, 10:36 AM EDT	Areal Flood Advisory	CTP	2 hr
Oct 14, 3:10 AM EDT	Dense Fog Advisory	CTP	6 hr
Oct 16, 11:06 AM EDT	Mesoscale Discussion	SPC	114 min
Nov 1, 4:23 AM EDT	Freeze Watch	CTP	22 hr
Nov 2, 2:47 AM EDT	Freeze Warning	CTP	30 hr
Nov 22, 6:26 AM EST	Special Weather Statement	CTP	79 min
Dec 10, 11:15 AM EST	Wind Advisory	CTP	38 hr
Dec 26, 2:58 PM EST	Winter Weather Advisory	CTP	33 hr
Dec 28, 12:48 PM EST	Winter Weather Advisory	CTP	14 hr
Dec 30, 10:09 PM EST	Dense Fog Advisory	CTP	12 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	20
Severe Thunderstorm Watch	14
Tornado Watch	2
Mesoscale Discussion	36
Special Weather Statement	28
Flooding
Areal Flood Warning	1
Flash Flood Warning	3
River Flood Warning	2
Flash Flood Watch	5
Areal Flood Advisory	7
Winter
Ice Storm Warning	1
Snow Squall Warning	1
Winter Storm Warning	2
Winter Storm Watch	1
Winter Weather Advisory	11
Heat
Excessive Heat Warning	1
Heat Advisory	4
Cold
Freeze Warning	3
Freeze Watch	3
Frost Advisory	1
Wind and dust
Wind Advisory	4
Fire
Red Flag Warning	1
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	3

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2020 2022

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. Rebuilt daily.