Alert archive / Pennsylvania / Greene County

Weather alerts in Greene County, Pennsylvania, 2026

151 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Greene County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Alerts: 151
Warnings: 61
Watches: 37
Advisories: 19
Busiest month: June29 alerts
Busiest day: March 11, 20268 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering Greene County in 2026 had a tornado report inside them.

Greene County, 2026

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	0
Severe thunderstorm warnings	35	26	26%	35	74%	23 min
Flash flood warnings	7	5	29%	1	100%	44 min

Each office's whole area, 2026

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Pittsburgh, PA: tornado warnings	62	18	71%	38	74%	11 min
NWS Pittsburgh, PA: severe thunderstorm warnings	372	274	26%	1,080	89%	24 min
NWS Pittsburgh, PA: flash flood warnings	153	112	27%	358	94%	70 min

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

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
Dec 31, 11:26 PM EST	Mesoscale Discussion	SPC	4 hr
Jan 1, 1:00 AM EST	Snow Squall Warning	PBZ	60 min
Jan 1, 1:03 AM EST	Snow Squall Warning	PBZ	57 min
Jan 1, 1:38 AM EST	Snow Squall Warning	PBZ	67 min
Jan 1, 1:45 AM EST	Snow Squall Warning	PBZ	30 min
Jan 1, 2:14 AM EST	Snow Squall Warning	PBZ	46 min
Jan 18, 1:18 PM EST	Cold Weather Advisory	PBZ	47 hr
Jan 19, 11:04 AM EST	Snow Squall Warning	PBZ	56 min
Jan 19, 12:55 PM EST	Snow Squall Warning	PBZ	50 min
Jan 22, 2:04 AM EST	Winter Storm Watch	PBZ	23 hr
Jan 22, 12:49 PM EST	Cold Weather Advisory	PBZ	45 hr
Jan 23, 12:53 AM EST	Winter Storm Warning	PBZ	3 days
Jan 25, 6:01 AM EST	Mesoscale Discussion	SPC	6 hr
Jan 25, 11:57 AM EST	Extreme Cold Watch	PBZ	12 hr
Jan 25, 11:52 PM EST	Extreme Cold Warning	PBZ	3 days
Jan 27, 12:02 AM EST	Cold Weather Advisory	PBZ	35 hr
Jan 27, 11:34 PM EST	Cold Weather Advisory	PBZ	59 hr
Jan 29, 11:28 PM EST	Cold Weather Advisory	PBZ	36 hr
Jan 30, 11:23 PM EST	Cold Weather Advisory	PBZ	36 hr
Feb 5, 12:04 PM EST	Cold Weather Advisory	PBZ	70 hr
Feb 6, 10:52 PM EST	Snow Squall Warning	PBZ	53 min
Feb 6, 11:30 PM EST	Snow Squall Warning	PBZ	45 min
Feb 15, 8:35 PM EST	Dense Fog Advisory	PBZ	15 hr
Mar 7, 1:23 PM EST	Tornado Watch	SPC	5 hr
Mar 7, 3:55 PM EST	Mesoscale Discussion	SPC	2 hr
Mar 11, 10:10 AM EDT	Mesoscale Discussion	SPC	2 hr
Mar 11, 1:45 PM EDT	Tornado Watch	SPC	6 hr
Mar 11, 1:46 PM EDT	Severe Thunderstorm Warning	PBZ	44 min
Mar 11, 1:50 PM EDT	Tornado Warning	PBZ	18 min
Mar 11, 1:50 PM EDT	Mesoscale Discussion	SPC	85 min
Mar 11, 2:02 PM EDT	Flood Watch	PBZ	8 hr
Mar 11, 2:42 PM EDT	Severe Thunderstorm Warning	PBZ	63 min
Mar 11, 4:34 PM EDT	Mesoscale Discussion	SPC	86 min
Mar 12, 1:38 AM EDT	Wind Advisory	PBZ	46 hr
Mar 15, 1:55 AM EDT	Wind Advisory	PBZ	46 hr
Mar 16, 2:13 AM EDT	Winter Weather Advisory	PBZ	39 hr
Mar 16, 6:13 PM EDT	Mesoscale Discussion	SPC	4 hr
Mar 22, 3:02 PM EDT	Mesoscale Discussion	SPC	88 min
Mar 22, 3:44 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Mar 22, 6:36 PM EDT	Mesoscale Discussion	SPC	114 min
Mar 22, 9:07 PM EDT	Mesoscale Discussion	SPC	83 min
Mar 26, 4:25 PM EDT	Mesoscale Discussion	SPC	95 min
Mar 26, 4:52 PM EDT	Tornado Watch	SPC	6 hr
Mar 26, 10:25 PM EDT	Mesoscale Discussion	SPC	65 min
Mar 27, 4:30 AM EDT	Areal Flood Warning	PBZ	12 hr
Apr 1, 1:06 PM EDT	Mesoscale Discussion	SPC	114 min
Apr 1, 2:43 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 1, 3:18 PM EDT	Severe Thunderstorm Warning	PBZ	34 min
Apr 1, 4:40 PM EDT	Mesoscale Discussion	SPC	2 hr
Apr 14, 2:32 PM EDT	Severe Thunderstorm Warning	PBZ	43 min
Apr 14, 5:52 PM EDT	Mesoscale Discussion	SPC	83 min
Apr 16, 2:36 PM EDT	Mesoscale Discussion	SPC	84 min
Apr 18, 12:38 PM EDT	Mesoscale Discussion	SPC	3 hr
Apr 19, 9:54 AM EDT	Frost Advisory	PBZ	23 hr
Apr 19, 12:17 PM EDT	Freeze Watch	PBZ	13 hr
Apr 20, 12:48 AM EDT	Freeze Warning	PBZ	32 hr
Apr 29, 1:48 PM EDT	Mesoscale Discussion	SPC	117 min
Apr 30, 1:06 AM EDT	Frost Advisory	PBZ	32 hr
May 1, 12:53 PM EDT	Frost Advisory	PBZ	19 hr
May 2, 12:27 PM EDT	Freeze Warning	PBZ	21 hr
May 13, 12:41 PM EDT	Mesoscale Discussion	SPC	3 hr
May 13, 2:59 PM EDT	Severe Thunderstorm Warning	PBZ	46 min
May 20, 7:50 AM EDT	Mesoscale Discussion	SPC	115 min
May 22, 8:50 AM EDT	Flood Watch	PBZ	41 hr
May 24, 5:14 PM EDT	Flood Watch	PBZ	7 hr
May 26, 1:06 PM EDT	Flood Watch	PBZ	33 hr
Jun 6, 11:07 AM EDT	Mesoscale Discussion	SPC	2 hr
Jun 6, 11:54 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 6, 1:55 PM EDT	Severe Thunderstorm Warning	PBZ	65 min
Jun 6, 2:47 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	58 min
Jun 6, 6:00 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 6, 7:48 PM EDT	Severe Thunderstorm Warning	PBZ	42 min
Jun 6, 8:05 PM EDT	Severe Thunderstorm Warning	PBZ	40 min
Jun 6, 8:11 PM EDT	Mesoscale Discussion	SPC	94 min
Jun 11, 12:27 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 11, 1:20 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 11, 2:20 PM EDT	Severe Thunderstorm Warning	PBZ	40 min
Jun 11, 2:24 PM EDT	Severe Thunderstorm Warning	PBZ	51 min
Jun 11, 2:58 PM EDT	Severe Thunderstorm Warning	PBZ	45 min
Jun 11, 3:41 PM EDT	Severe Thunderstorm Warning	PBZ	64 min
Jun 11, 3:48 PM EDT	Mesoscale Discussion	SPC	117 min
Jun 14, 1:25 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 14, 1:40 PM EDT	Mesoscale Discussion	SPC	5 min
Jun 14, 4:52 PM EDT	Mesoscale Discussion	SPC	113 min
Jun 14, 6:01 PM EDT	Severe Thunderstorm Warning	PBZ	59 min
Jun 14, 6:54 PM EDT	Severe Thunderstorm Warning	PBZ	51 min
Jun 18, 5:09 AM EDT	Severe Thunderstorm Warning	PBZ	51 min
Jun 22, 4:46 PM EDT	Flash Flood Warning	PBZ	2 hr
Jun 22, 4:50 PM EDT	Severe Thunderstorm Warning	PBZ	62 min
Jun 25, 5:52 PM EDT	Mesoscale Discussion	SPC	23 min
Jun 25, 5:56 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 25, 6:09 PM EDT	Severe Thunderstorm Warning	PBZ	66 min
Jun 26, 1:03 PM EDT	Flood Watch	PBZ	23 hr
Jun 29, 12:53 PM EDT	Heat Advisory	PBZ	5 days
Jun 30, 1:30 AM EDT	Extreme Heat Warning	PBZ	5 days
Jul 4, 1:08 PM EDT	Severe Thunderstorm Warning	PBZ	52 min
Jul 4, 1:36 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 4, 1:59 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 4, 5:05 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	37 min
Jul 4, 5:27 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	23 min
Jul 4, 5:41 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	25 min
Jul 4, 6:02 PM EDT	Severe Thunderstorm Warning	PBZ	43 min
Jul 5, 11:03 AM EDT	Flood Watch	PBZ	11 hr
Jul 6, 2:09 AM EDT	Flood Watch	PBZ	21 hr
Jul 9, 8:16 AM EDT	Flood Watch	PBZ	11 hr
Jul 10, 1:56 AM EDT	Flood Watch	PBZ	20 hr
Jul 10, 2:51 PM EDT	Flash Flood Warning	PBZ	87 min
Jul 14, 12:45 PM EDT	Heat Advisory	PBZ	31 hr
Jul 18, 1:02 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 21, 3:11 AM EDT	Flood Watch	PBZ	20 hr
Jul 21, 12:15 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 21, 1:13 PM EDT	Severe Thunderstorm Watch	SPC	10 hr
Jul 21, 2:56 PM EDT	Flash Flood Warning	PBZ	5 hr
Aug 2, 2:04 AM EDT	Flood Watch	PBZ	21 hr
Aug 2, 4:55 PM EDT	Flash Flood Warning	PBZ	3 hr
Aug 2, 4:56 PM EDT	Severe Thunderstorm Warning	PBZ	26 min
Aug 8, 8:03 AM EDT	Severe Thunderstorm Warning	PBZ	42 min
Aug 9, 12:51 AM EDT	Severe Thunderstorm Warning	PBZ	27 min
Aug 10, 9:29 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 10, 10:07 AM EDT	Flood Watch	PBZ	41 hr
Aug 10, 12:48 PM EDT	Severe Thunderstorm Warning	PBZ	57 min
Aug 10, 4:22 PM EDT	Severe Thunderstorm Warning	PBZ	41 min
Aug 15, 1:55 AM EDT	Dense Fog Advisory	PBZ	8 hr
Aug 15, 9:57 AM EDT	Flood Watch	PBZ	38 hr
Aug 16, 11:56 AM EDT	Mesoscale Discussion	SPC	64 min
Aug 16, 1:05 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Aug 16, 2:28 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 16, 3:25 PM EDT	Severe Thunderstorm Warning	PBZ	50 min
Aug 16, 4:05 PM EDT	Severe Thunderstorm Warning	PBZ	40 min
Aug 19, 12:36 PM EDT	Flood Watch	PBZ	25 hr
Aug 20, 9:40 AM EDT	Flash Flood Warning	PBZ	3 hr
Aug 20, 10:05 AM EDT	Flash Flood Warning	PBZ	3 hr
Aug 20, 12:43 PM EDT	Areal Flood Warning	PBZ	3 hr
Aug 20, 12:51 PM EDT	Areal Flood Warning	PBZ	3 hr
Aug 21, 1:50 AM EDT	Dense Fog Advisory	PBZ	7 hr
Aug 22, 11:38 AM EDT	Mesoscale Discussion	SPC	3 hr
Aug 22, 1:22 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 22, 3:50 PM EDT	Mesoscale Discussion	SPC	115 min
Aug 22, 4:11 PM EDT	Severe Thunderstorm Warning	PBZ	49 min
Sep 1, 12:59 PM EDT	Heat Advisory	PBZ	55 hr
Sep 3, 3:03 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Sep 3, 6:40 PM EDT	Severe Thunderstorm Warning	PBZ	24 min
Sep 3, 8:44 PM EDT	Severe Thunderstorm Warning	PBZ	46 min
Sep 3, 9:06 PM EDT	Severe Thunderstorm Warning	PBZ	24 min
Sep 3, 9:24 PM EDT	Severe Thunderstorm Warning	PBZ	66 min
Sep 4, 9:35 AM EDT	Flood Watch	PBZ	7 hr
Sep 11, 1:26 PM EDT	Flood Watch	PBZ	40 hr
Sep 12, 2:22 PM EDT	Mesoscale Discussion	SPC	113 min
Sep 12, 6:14 PM EDT	Flash Flood Warning	PBZ	2 hr
Sep 12, 8:27 PM EDT	Areal Flood Warning	PBZ	3 hr
Sep 20, 12:00 PM EDT	Flood Watch	PBZ	56 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	35
Tornado Warning	1
Severe Thunderstorm Watch	14
Tornado Watch	3
Mesoscale Discussion	34
Flooding
Areal Flood Warning	4
Flash Flood Warning	7
Flood Watch	17
Winter
Snow Squall Warning	9
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	1
Heat
Extreme Heat Warning	1
Heat Advisory	3
Cold
Extreme Cold Warning	1
Freeze Warning	2
Extreme Cold Watch	1
Freeze Watch	1
Cold Weather Advisory	7
Frost Advisory	3
Wind and dust
Wind Advisory	2
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 2025

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.