Alert archive / Pennsylvania / Allegheny County

Weather alerts in Allegheny County, Pennsylvania, 2014

164 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Allegheny County and its neighbors

Each county as a circle sized by its count in 2014. Tap one for its archive.

Alerts: 164
Warnings: 35
Watches: 26
Advisories: 44
Busiest month: June35 alerts
Busiest day: January 10, 20149 alerts

Over time

By month

Warning verification

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

Allegheny County, 2014

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	24	19	21%	40	73%	22 min
Flash flood warnings	2	1	50%	6	83%	37 min

Each office's whole area, 2014

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Pittsburgh, PA: tornado warnings	9	2	78%	6	67%	6 min
NWS Pittsburgh, PA: severe thunderstorm warnings	147	106	28%	399	80%	22 min
NWS Pittsburgh, PA: flash flood warnings	15	10	33%	31	87%	51 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 1, 2:28 PM EST	Wind Chill Advisory	PBZ	61 hr
Jan 1, 2:28 PM EST	Winter Weather Advisory	PBZ	46 hr
Jan 4, 3:37 AM EST	Wind Chill Watch	PBZ	24 hr
Jan 5, 3:53 AM EST	Wind Chill Warning	PBZ	61 hr
Jan 5, 3:05 PM EST	Winter Weather Advisory	PBZ	26 hr
Jan 6, 1:01 AM EST	Special Weather Statement	PBZ	59 min
Jan 7, 5:18 PM EST	Wind Chill Advisory	PBZ	15 hr
Jan 10, 12:46 AM EST	Special Weather Statement	PBZ	119 min
Jan 10, 12:08 PM EST	River Flood Watch	PBZ	5 days
Jan 10, 12:08 PM EST	River Flood Watch	PBZ	5 days
Jan 10, 12:08 PM EST	River Flood Watch	PBZ	4 days
Jan 10, 12:08 PM EST	River Flood Watch	PBZ	4 days
Jan 10, 12:08 PM EST	River Flood Watch	PBZ	4 days
Jan 10, 12:08 PM EST	River Flood Watch	PBZ	5 days
Jan 10, 12:08 PM EST	River Flood Watch	PBZ	5 days
Jan 10, 12:08 PM EST	River Flood Watch	PBZ	5 days
Jan 11, 4:06 PM EST	Special Weather Statement	PBZ	54 min
Jan 11, 4:56 PM EST	Special Weather Statement	PBZ	2 hr
Jan 14, 11:22 AM EST	River Flood Watch	PBZ	24 hr
Jan 20, 11:44 AM EST	Winter Weather Advisory	PBZ	31 hr
Jan 21, 3:16 AM EST	Wind Chill Advisory	PBZ	33 hr
Jan 23, 3:56 AM EST	Wind Chill Advisory	PBZ	32 hr
Jan 23, 3:22 PM EST	Winter Weather Advisory	PBZ	62 hr
Jan 24, 9:44 PM EST	Wind Chill Advisory	PBZ	37 hr
Jan 25, 4:14 PM EST	Special Weather Statement	PBZ	2 hr
Jan 26, 3:34 AM EST	Wind Chill Watch	PBZ	23 hr
Jan 26, 3:18 PM EST	Wind Chill Advisory	PBZ	33 hr
Jan 26, 3:18 PM EST	Winter Weather Advisory	PBZ	23 hr
Jan 27, 2:13 AM EST	Wind Chill Warning	PBZ	58 hr
Jan 27, 7:09 AM EST	Special Weather Statement	PBZ	51 min
Jan 27, 8:00 AM EST	Special Weather Statement	PBZ	60 min
Jan 27, 8:45 AM EST	Special Weather Statement	PBZ	45 min
Jan 28, 11:58 AM EST	Wind Chill Advisory	PBZ	24 hr
Feb 3, 3:25 AM EST	Winter Storm Watch	PBZ	24 hr
Feb 4, 3:40 AM EST	Winter Storm Warning	PBZ	32 hr
Feb 16, 6:30 PM EST	Special Weather Statement	PBZ	3 hr
Feb 17, 3:45 AM EST	Winter Weather Advisory	PBZ	30 hr
Feb 19, 4:17 AM EST	Freezing Rain Advisory	PBZ	5 hr
Feb 20, 3:47 AM EST	Wind Advisory	PBZ	37 hr
Feb 20, 10:03 PM EST	River Flood Advisory	PBZ	36 hr
Feb 26, 2:50 PM EST	Wind Chill Advisory	PBZ	18 hr
Feb 27, 10:38 AM EST	Special Weather Statement	PBZ	67 min
Feb 27, 11:44 AM EST	Special Weather Statement	PBZ	61 min
Feb 28, 10:00 AM EST	Winter Storm Watch	PBZ	30 hr
Mar 1, 4:24 PM EST	Winter Storm Warning	PBZ	38 hr
Mar 2, 2:53 PM EST	Winter Weather Advisory	PBZ	15 hr
Mar 11, 3:08 PM EDT	Winter Weather Advisory	PBZ	31 hr
Mar 12, 4:19 AM EDT	Wind Chill Advisory	PBZ	30 hr
Mar 21, 9:51 AM EDT	Special Weather Statement	PBZ	69 min
Mar 25, 7:06 PM EDT	Special Weather Statement	PBZ	54 min
Apr 3, 11:40 AM EDT	River Flood Advisory	PBZ	24 hr
Apr 4, 5:54 PM EDT	Mesoscale Discussion	SPC	96 min
Apr 12, 4:15 AM EDT	Dense Fog Advisory	PBZ	5 hr
Apr 22, 3:04 PM EDT	Special Weather Statement	PBZ	26 min
May 3, 5:17 PM EDT	Special Weather Statement	PBZ	43 min
May 7, 7:37 AM EDT	Special Weather Statement	PBZ	38 min
May 7, 7:48 AM EDT	Severe Thunderstorm Warning	PBZ	42 min
May 12, 11:32 PM EDT	Severe Thunderstorm Warning	PBZ	43 min
May 13, 12:19 AM EDT	Special Weather Statement	PBZ	41 min
May 14, 5:50 PM EDT	Mesoscale Discussion	SPC	85 min
May 14, 7:01 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
May 14, 7:40 PM EDT	Flash Flood Watch	PBZ	30 hr
May 14, 9:33 PM EDT	Mesoscale Discussion	SPC	87 min
May 15, 11:21 AM EDT	River Flood Advisory	PBZ	3 days
May 15, 9:00 PM EDT	Areal Flood Advisory	PBZ	6 hr
May 17, 2:35 PM EDT	Frost Advisory	PBZ	17 hr
May 18, 2:30 PM EDT	Frost Advisory	PBZ	18 hr
May 21, 10:28 PM EDT	River Flood Warning	PBZ	29 hr
May 21, 10:34 PM EDT	River Flood Advisory	PBZ	41 hr
May 27, 1:43 PM EDT	Mesoscale Discussion	SPC	62 min
May 27, 6:59 PM EDT	Special Weather Statement	PBZ	31 min
May 27, 7:59 PM EDT	Special Weather Statement	PBZ	46 min
May 27, 8:09 PM EDT	Severe Thunderstorm Warning	PBZ	51 min
May 27, 8:19 PM EDT	Severe Thunderstorm Warning	PBZ	41 min
May 27, 9:07 PM EDT	Areal Flood Warning	PBZ	6 hr
May 27, 9:49 PM EDT	Severe Thunderstorm Warning	PBZ	26 min
May 27, 10:19 PM EDT	Special Weather Statement	PBZ	41 min
May 27, 11:37 PM EDT	Severe Thunderstorm Warning	PBZ	38 min
May 28, 4:19 AM EDT	Flash Flood Watch	PBZ	17 hr
Jun 3, 12:10 PM EDT	Mesoscale Discussion	SPC	3 hr
Jun 3, 5:17 PM EDT	Special Weather Statement	PBZ	28 min
Jun 3, 5:44 PM EDT	Special Weather Statement	PBZ	31 min
Jun 8, 11:37 AM EDT	Mesoscale Discussion	SPC	53 min
Jun 8, 1:20 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 8, 4:51 PM EDT	Mesoscale Discussion	SPC	114 min
Jun 8, 5:53 PM EDT	Special Weather Statement	PBZ	37 min
Jun 11, 1:32 PM EDT	Mesoscale Discussion	SPC	118 min
Jun 11, 2:59 PM EDT	Tornado Watch	SPC	6 hr
Jun 11, 5:25 PM EDT	Severe Thunderstorm Warning	PBZ	50 min
Jun 11, 5:37 PM EDT	Severe Thunderstorm Warning	PBZ	38 min
Jun 11, 6:13 PM EDT	Severe Thunderstorm Warning	PBZ	32 min
Jun 11, 6:20 PM EDT	Severe Thunderstorm Warning	PBZ	40 min
Jun 11, 6:40 PM EDT	Severe Thunderstorm Warning	PBZ	50 min
Jun 11, 6:51 PM EDT	Severe Thunderstorm Warning	PBZ	39 min
Jun 12, 1:54 AM EDT	Areal Flood Advisory	PBZ	3 hr
Jun 12, 3:17 AM EDT	Flash Flood Watch	PBZ	13 hr
Jun 12, 7:52 PM EDT	Areal Flood Advisory	PBZ	6 hr
Jun 13, 12:59 PM EDT	Special Weather Statement	PBZ	61 min
Jun 13, 2:56 PM EDT	Areal Flood Advisory	PBZ	3 hr
Jun 13, 7:17 PM EDT	Areal Flood Warning	PBZ	3 hr
Jun 16, 2:01 PM EDT	Mesoscale Discussion	SPC	119 min
Jun 18, 3:06 AM EDT	Areal Flood Advisory	PBZ	4 hr
Jun 18, 5:46 PM EDT	Flash Flood Watch	PBZ	15 hr
Jun 18, 6:30 PM EDT	Mesoscale Discussion	SPC	60 min
Jun 18, 7:00 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 18, 9:06 PM EDT	Mesoscale Discussion	SPC	54 min
Jun 18, 9:24 PM EDT	Severe Thunderstorm Warning	PBZ	51 min
Jun 18, 10:02 PM EDT	Severe Thunderstorm Warning	PBZ	58 min
Jun 18, 10:05 PM EDT	Severe Thunderstorm Warning	PBZ	55 min
Jun 18, 10:29 PM EDT	Severe Thunderstorm Warning	PBZ	46 min
Jun 24, 12:02 PM EDT	Flash Flood Watch	PBZ	26 hr
Jun 25, 1:30 PM EDT	Areal Flood Advisory	PBZ	3 hr
Jun 28, 8:07 PM EDT	Areal Flood Advisory	PBZ	3 hr
Jun 28, 8:30 PM EDT	Flash Flood Warning	PBZ	3 hr
Jul 1, 3:22 PM EDT	Mesoscale Discussion	SPC	53 min
Jul 7, 1:18 PM EDT	Mesoscale Discussion	SPC	87 min
Jul 7, 2:10 PM EDT	Mesoscale Discussion	SPC	65 min
Jul 7, 2:45 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 7, 3:58 PM EDT	Special Weather Statement	PBZ	47 min
Jul 8, 11:29 AM EDT	Mesoscale Discussion	SPC	91 min
Jul 8, 1:04 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 8, 2:43 PM EDT	Severe Thunderstorm Warning	PBZ	62 min
Jul 8, 4:00 PM EDT	Mesoscale Discussion	SPC	90 min
Jul 9, 12:53 PM EDT	Mesoscale Discussion	SPC	3 hr
Jul 13, 12:37 PM EDT	Mesoscale Discussion	SPC	53 min
Jul 13, 1:17 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 13, 4:10 PM EDT	Severe Thunderstorm Warning	PBZ	35 min
Jul 13, 4:45 PM EDT	Severe Thunderstorm Warning	PBZ	45 min
Jul 13, 5:19 PM EDT	Flash Flood Warning	PBZ	116 min
Jul 13, 6:18 PM EDT	Mesoscale Discussion	SPC	87 min
Jul 13, 9:29 PM EDT	Special Weather Statement	PBZ	91 min
Jul 14, 12:31 PM EDT	Areal Flood Advisory	PBZ	89 min
Jul 27, 1:44 PM EDT	Tornado Watch	SPC	9 hr
Jul 27, 4:12 PM EDT	Special Weather Statement	PBZ	63 min
Jul 27, 8:49 PM EDT	Mesoscale Discussion	SPC	86 min
Jul 27, 10:05 PM EDT	Special Weather Statement	PBZ	40 min
Aug 2, 6:30 PM EDT	Special Weather Statement	PBZ	60 min
Aug 3, 9:35 AM EDT	Areal Flood Warning	PBZ	3 hr
Aug 3, 11:04 AM EDT	Areal Flood Warning	PBZ	3 hr
Aug 12, 12:26 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 12, 3:15 PM EDT	Severe Thunderstorm Warning	PBZ	30 min
Aug 12, 3:46 PM EDT	Severe Thunderstorm Warning	PBZ	29 min
Aug 12, 4:01 PM EDT	Special Weather Statement	PBZ	44 min
Aug 12, 4:14 PM EDT	Special Weather Statement	PBZ	31 min
Aug 12, 4:18 PM EDT	Severe Thunderstorm Warning	PBZ	42 min
Aug 12, 4:28 PM EDT	Areal Flood Advisory	PBZ	92 min
Aug 12, 5:25 PM EDT	Areal Flood Advisory	PBZ	95 min
Aug 31, 10:15 AM EDT	Areal Flood Advisory	PBZ	4 hr
Sep 2, 2:25 PM EDT	Mesoscale Discussion	SPC	2 hr
Sep 21, 1:20 PM EDT	Mesoscale Discussion	SPC	115 min
Oct 2, 3:48 AM EDT	Dense Fog Advisory	PBZ	6 hr
Nov 21, 9:32 PM EST	Freezing Rain Advisory	PBZ	16 hr
Nov 23, 2:42 PM EST	Wind Advisory	PBZ	29 hr
Dec 1, 9:40 PM EST	Winter Weather Advisory	PBZ	21 hr
Dec 6, 8:31 PM EST	River Flood Advisory	PBZ	36 hr
Dec 12, 10:38 PM EST	Special Weather Statement	PBZ	112 min
Dec 18, 10:39 PM EST	Winter Weather Advisory	PBZ	10 hr
Dec 24, 3:47 AM EST	Wind Advisory	PBZ	24 hr
Dec 24, 4:23 PM EST	Severe Thunderstorm Watch	SPC	5 hr
Dec 24, 7:36 PM EST	Severe Thunderstorm Warning	PBZ	24 min
Dec 24, 7:48 PM EST	Mesoscale Discussion	SPC	57 min
Dec 24, 8:01 PM EST	Severe Thunderstorm Warning	PBZ	29 min
Dec 24, 8:16 PM EST	Special Weather Statement	PBZ	29 min
Dec 24, 8:33 PM EST	Special Weather Statement	PBZ	42 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	24
Severe Thunderstorm Watch	6
Tornado Watch	2
Mesoscale Discussion	25
Special Weather Statement	34
Flooding
Areal Flood Warning	4
Flash Flood Warning	2
River Flood Warning	1
Flash Flood Watch	5
River Flood Watch	9
Areal Flood Advisory	11
River Flood Advisory	5
Winter
Winter Storm Warning	2
Winter Storm Watch	2
Freezing Rain Advisory	2
Winter Weather Advisory	10
Cold
Wind Chill Warning	2
Wind Chill Watch	2
Frost Advisory	2
Wind Chill Advisory	9
Wind and dust
Wind Advisory	3
Fog and smoke
Dense Fog Advisory	2

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2013 2015

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.