Alert archive / Pennsylvania / Beaver County

Weather alerts in Beaver County, Pennsylvania, 2024

173 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Beaver County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts
173
Warnings
63
Watches
18
Advisories
31
Busiest month
April44 alerts
Busiest day
August 6, 202416 alerts

Over time

By month

Warning verification

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

3 of 3 tornado warnings covering Beaver County in 2024 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 0 minutes after it went out.

Beaver County, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings330%1100%0 min
Severe thunderstorm warnings403415%6189%21 min
Flash flood warnings5340%683%217 min

Each office's whole area, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Pittsburgh, PA: tornado warnings371462%5860%10 min
NWS Pittsburgh, PA: severe thunderstorm warnings28320627%91785%20 min
NWS Pittsburgh, PA: flash flood warnings452740%24890%162 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.

IssuedProductOfficeLasted
Jan 6, 12:22 PM ESTSpecial Weather StatementPBZ83 min
Jan 6, 9:35 PM ESTDense Fog AdvisoryPBZ6 hr
Jan 8, 3:01 AM ESTWind AdvisoryPBZ62 hr
Jan 11, 1:28 PM ESTWind AdvisoryPBZ55 hr
Jan 14, 4:33 AM ESTSpecial Weather StatementPBZ87 min
Jan 14, 6:00 AM ESTSpecial Weather StatementPBZ90 min
Jan 14, 6:48 AM ESTSnow Squall WarningPBZ42 min
Jan 16, 2:19 AM ESTWind Chill AdvisoryPBZ35 hr
Jan 18, 2:57 AM ESTWinter Weather AdvisoryPBZ64 hr
Jan 19, 4:32 PM ESTSpecial Weather StatementPBZ58 min
Jan 22, 3:57 AM ESTWinter Weather AdvisoryPBZ32 hr
Jan 24, 3:19 AM ESTDense Fog AdvisoryPBZ8 hr
Jan 24, 8:07 PM ESTDense Fog AdvisoryPBZ25 hr
Feb 15, 1:49 PM ESTSpecial Weather StatementPBZ56 min
Feb 16, 7:40 PM ESTMesoscale DiscussionSPC4 hr
Feb 22, 10:34 PM ESTDense Fog AdvisoryPBZ9 hr
Feb 28, 8:07 AM ESTAreal Flood AdvisoryPBZ102 min
Mar 3, 6:28 AM ESTSpecial Weather StatementPBZ3 hr
Mar 6, 4:21 PM ESTAreal Flood AdvisoryPBZ95 min
Mar 10, 12:13 PM EDTMesoscale DiscussionSPC4 hr
Mar 14, 8:48 PM EDTSpecial Weather StatementPBZ27 min
Mar 14, 8:51 PM EDTSevere Thunderstorm WarningPBZ39 min
Mar 14, 9:56 PM EDTSevere Thunderstorm WarningPBZ49 min
Mar 18, 11:21 PM EDTSpecial Weather StatementPBZ39 min
Mar 19, 12:03 AM EDTSpecial Weather StatementPBZ42 min
Mar 19, 12:44 AM EDTSpecial Weather StatementPBZ46 min
Mar 31, 1:03 PM EDTFlood WatchPBZ66 hr
Apr 2, 9:58 AM EDTAreal Flood WarningPBZ6 hr
Apr 2, 10:50 AM EDTRiver Flood WatchPBZ69 hr
Apr 2, 10:50 AM EDTRiver Flood WatchPBZ65 hr
Apr 2, 11:05 AM EDTAreal Flood WarningPBZ9 hr
Apr 2, 2:18 PM EDTAreal Flood WarningPBZ6 hr
Apr 2, 7:22 PM EDTTornado WatchSPC4 hr
Apr 2, 8:19 PM EDTAreal Flood WarningPBZ2 min
Apr 2, 8:39 PM EDTAreal Flood WarningPBZ8 hr
Apr 2, 8:42 PM EDTMesoscale DiscussionSPC93 min
Apr 2, 9:51 PM EDTFlash Flood WarningPBZ6 hr
Apr 3, 3:43 AM EDTAreal Flood WarningPBZ37 hr
Apr 3, 12:10 PM EDTRiver Flood WarningPBZ40 hr
Apr 3, 12:10 PM EDTRiver Flood WarningPBZ45 hr
Apr 11, 10:00 AM EDTFlood WatchPBZ16 hr
Apr 11, 5:32 PM EDTFlash Flood WarningPBZ7 hr
Apr 12, 12:36 AM EDTAreal Flood WarningPBZ25 hr
Apr 12, 3:13 AM EDTWind AdvisoryPBZ39 hr
Apr 12, 5:50 AM EDTRiver Flood WarningPBZ39 hr
Apr 12, 11:17 AM EDTRiver Flood WarningPBZ45 hr
Apr 13, 1:46 AM EDTAreal Flood WarningPBZ17 hr
Apr 14, 3:29 PM EDTMesoscale DiscussionSPC2 hr
Apr 14, 4:58 PM EDTSevere Thunderstorm WatchSPC6 hr
Apr 14, 6:46 PM EDTMesoscale DiscussionSPC89 min
Apr 14, 8:05 PM EDTSevere Thunderstorm WarningPBZ40 min
Apr 14, 8:17 PM EDTSevere Thunderstorm WarningPBZ43 min
Apr 14, 8:58 PM EDTSevere Thunderstorm Warning Considerable damage threatPBZ47 min
Apr 14, 9:34 PM EDTMesoscale DiscussionSPC86 min
Apr 14, 9:36 PM EDTSevere Thunderstorm WarningPBZ39 min
Apr 14, 10:24 PM EDTSpecial Weather StatementPBZ36 min
Apr 14, 10:57 PM EDTSevere Thunderstorm WarningPBZ34 min
Apr 14, 11:39 PM EDTSpecial Weather StatementPBZ36 min
Apr 15, 12:05 AM EDTSevere Thunderstorm WarningPBZ40 min
Apr 17, 2:12 PM EDTMesoscale DiscussionSPC93 min
Apr 17, 3:46 PM EDTTornado WatchSPC7 hr
Apr 17, 6:23 PM EDTMesoscale DiscussionSPC97 min
Apr 17, 6:25 PM EDTSpecial Weather StatementPBZ20 min
Apr 17, 6:53 PM EDTSevere Thunderstorm Warning Considerable damage threatPBZ67 min
Apr 20, 2:50 AM EDTFreeze WatchPBZ11 hr
Apr 20, 1:20 PM EDTFrost AdvisoryPBZ19 hr
Apr 21, 12:27 PM EDTFrost AdvisoryPBZ14 hr
Apr 21, 12:27 PM EDTFreeze WarningPBZ21 hr
Apr 23, 1:59 PM EDTFreeze WatchPBZ24 hr
Apr 24, 2:14 PM EDTFrost AdvisoryPBZ19 hr
Apr 25, 2:05 PM EDTFrost AdvisoryPBZ19 hr
May 5, 1:12 PM EDTMesoscale DiscussionSPC3 hr
May 7, 9:17 PM EDTTornado WatchSPC7 hr
May 8, 12:30 AM EDTSpecial Weather StatementPBZ45 min
May 8, 12:36 AM EDTSevere Thunderstorm WarningPBZ39 min
May 8, 12:55 AM EDTTornado WarningPBZ35 min
May 8, 1:26 AM EDTTornado WarningPBZ34 min
May 8, 1:38 AM EDTSevere Thunderstorm Warning Considerable damage threatPBZ37 min
May 8, 1:48 AM EDTFlash Flood WarningPBZ3 hr
May 11, 2:37 PM EDTMesoscale DiscussionSPC113 min
May 11, 4:15 PM EDTSpecial Weather StatementPBZ45 min
May 11, 4:19 PM EDTSevere Thunderstorm WarningPBZ41 min
May 11, 4:55 PM EDTSevere Thunderstorm WarningPBZ50 min
May 18, 2:43 AM EDTAreal Flood AdvisoryPBZ2 hr
May 22, 12:28 PM EDTMesoscale DiscussionSPC2 hr
May 23, 2:00 AM EDTSpecial Weather StatementPBZ30 min
May 23, 2:15 AM EDTSpecial Weather StatementPBZ30 min
May 25, 11:39 AM EDTMesoscale DiscussionSPC3 hr
May 25, 2:20 PM EDTSpecial Weather StatementPBZ40 min
May 25, 2:36 PM EDTSevere Thunderstorm WarningPBZ39 min
May 25, 3:41 PM EDTSevere Thunderstorm WarningPBZ49 min
May 25, 4:59 PM EDTTornado WarningPBZ31 min
May 25, 5:08 PM EDTSevere Thunderstorm WarningPBZ52 min
May 25, 6:15 PM EDTSpecial Weather StatementPBZ30 min
May 25, 7:06 PM EDTSevere Thunderstorm WarningPBZ39 min
May 26, 12:00 AM EDTDense Fog AdvisoryPBZ8 hr
May 26, 3:52 PM EDTSevere Thunderstorm WatchSPC6 hr
May 26, 6:58 PM EDTSevere Thunderstorm WarningPBZ47 min
May 26, 7:22 PM EDTMesoscale DiscussionSPC83 min
May 26, 7:44 PM EDTSpecial Weather StatementPBZ31 min
May 26, 8:03 PM EDTSevere Thunderstorm WarningPBZ42 min
May 27, 4:52 AM EDTSpecial Weather StatementPBZ38 min
May 27, 5:22 AM EDTSpecial Weather StatementPBZ38 min
Jun 14, 1:55 PM EDTMesoscale DiscussionSPC2 hr
Jun 14, 4:05 PM EDTSpecial Weather StatementPBZ25 min
Jun 15, 9:53 AM EDTExcessive Heat WatchPBZ40 hr
Jun 17, 2:06 AM EDTHeat AdvisoryPBZ6 days
Jun 17, 3:59 PM EDTSevere Thunderstorm WarningPBZ46 min
Jun 17, 4:14 PM EDTSevere Thunderstorm WarningPBZ46 min
Jun 17, 4:44 PM EDTSevere Thunderstorm WarningPBZ46 min
Jun 17, 5:23 PM EDTSevere Thunderstorm Warning Considerable damage threatPBZ37 min
Jun 17, 7:04 PM EDTSevere Thunderstorm WarningPBZ41 min
Jun 18, 12:19 PM EDTExcessive Heat WarningPBZ4 days
Jun 18, 1:35 PM EDTMesoscale DiscussionSPC85 min
Jun 18, 6:05 PM EDTSevere Thunderstorm WarningPBZ40 min
Jun 23, 1:42 PM EDTMesoscale DiscussionSPC2 hr
Jun 23, 4:33 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 23, 6:21 PM EDTSpecial Weather StatementPBZ24 min
Jun 23, 6:40 PM EDTSevere Thunderstorm WarningPBZ35 min
Jun 26, 12:32 PM EDTMesoscale DiscussionSPC2 hr
Jun 26, 4:31 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 28, 2:53 PM EDTFlood WatchPBZ28 hr
Jun 29, 12:03 PM EDTMesoscale DiscussionSPC117 min
Jun 29, 1:11 PM EDTTornado WatchSPC7 hr
Jul 4, 6:42 PM EDTAreal Flood AdvisoryPBZ59 min
Jul 5, 1:36 AM EDTAreal Flood AdvisoryPBZ114 min
Jul 9, 3:19 AM EDTHeat AdvisoryPBZ16 hr
Jul 14, 6:29 PM EDTMesoscale DiscussionSPC2 hr
Jul 24, 5:02 PM EDTMesoscale DiscussionSPC88 min
Jul 24, 6:13 PM EDTSpecial Weather StatementPBZ32 min
Aug 2, 7:12 AM EDTAreal Flood AdvisoryPBZ2 hr
Aug 3, 12:35 PM EDTAreal Flood AdvisoryPBZ115 min
Aug 4, 6:23 AM EDTDense Fog AdvisoryPBZ3 hr
Aug 6, 10:59 AM EDTMesoscale DiscussionSPC91 min
Aug 6, 11:42 AM EDTSevere Thunderstorm WatchSPC7 hr
Aug 6, 1:40 PM EDTSevere Thunderstorm WarningPBZ35 min
Aug 6, 1:54 PM EDTSpecial Weather StatementPBZ36 min
Aug 6, 2:10 PM EDTMesoscale DiscussionSPC95 min
Aug 6, 2:13 PM EDTSevere Thunderstorm WarningPBZ32 min
Aug 6, 2:41 PM EDTSevere Thunderstorm WarningPBZ34 min
Aug 6, 2:49 PM EDTSevere Thunderstorm WarningPBZ41 min
Aug 6, 3:16 PM EDTSpecial Weather StatementPBZ29 min
Aug 6, 3:19 PM EDTFlash Flood WarningPBZ6 hr
Aug 6, 4:29 PM EDTMesoscale DiscussionSPC61 min
Aug 6, 5:26 PM EDTSevere Thunderstorm WarningPBZ49 min
Aug 6, 5:54 PM EDTSevere Thunderstorm WarningPBZ51 min
Aug 6, 5:59 PM EDTSevere Thunderstorm WarningPBZ46 min
Aug 6, 6:14 PM EDTSevere Thunderstorm WarningPBZ46 min
Aug 6, 7:34 PM EDTFlash Flood WarningPBZ82 min
Aug 17, 3:10 PM EDTSevere Thunderstorm WarningPBZ50 min
Aug 17, 4:39 PM EDTSevere Thunderstorm WarningPBZ51 min
Aug 17, 5:10 PM EDTSevere Thunderstorm WarningPBZ50 min
Aug 17, 6:06 PM EDTSpecial Weather StatementPBZ24 min
Aug 27, 9:53 PM EDTSpecial Weather StatementPBZ52 min
Aug 30, 7:02 PM EDTSpecial Weather StatementPBZ28 min
Aug 31, 12:39 PM EDTMesoscale DiscussionSPC2 hr
Aug 31, 10:35 PM EDTAreal Flood AdvisoryPBZ115 min
Sep 6, 3:18 PM EDTMesoscale DiscussionSPC117 min
Sep 6, 5:56 PM EDTSevere Thunderstorm WarningPBZ49 min
Sep 6, 7:13 PM EDTSpecial Weather StatementPBZ32 min
Oct 6, 4:26 PM EDTMesoscale DiscussionSPC94 min
Oct 6, 4:55 PM EDTSevere Thunderstorm WatchSPC6 hr
Oct 6, 6:54 PM EDTMesoscale DiscussionSPC2 hr
Oct 6, 7:14 PM EDTSevere Thunderstorm WarningPBZ46 min
Oct 10, 3:21 AM EDTFrost AdvisoryPBZ30 hr
Oct 17, 12:55 PM EDTFrost AdvisoryPBZ20 hr
Nov 20, 3:29 PM ESTSpecial Weather StatementPBZ2 hr
Nov 20, 4:24 PM ESTSevere Thunderstorm WarningPBZ51 min
Nov 29, 1:53 PM ESTSpecial Weather StatementPBZ52 min
Dec 5, 1:47 AM ESTMesoscale DiscussionSPC4 hr
Dec 14, 2:39 AM ESTWinter Weather AdvisoryPBZ46 hr
Dec 21, 10:56 AM ESTWinter Weather AdvisoryPBZ13 hr
Dec 28, 1:10 PM ESTWind AdvisoryPBZ39 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20232025

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.