Alert archive / Pennsylvania / Centre County

Weather alerts in Centre County, Pennsylvania, 2023

131 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Centre County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts
131
Warnings
32
Watches
16
Advisories
32
Busiest month
July29 alerts
Busiest day
August 4, 20239 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 Centre County in 2023 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Centre County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%10%
Severe thunderstorm warnings221914%3083%18 min
Flash flood warnings00

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS State College, PA: tornado warnings18572%1540%3 min
NWS State College, PA: severe thunderstorm warnings18613627%38183%19 min
NWS State College, PA: flash flood warnings8363%863%42 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 3, 2:21 AM ESTDense Fog AdvisoryCTP7 hr
Jan 16, 2:04 PM ESTWinter Weather AdvisoryCTP20 hr
Jan 18, 2:33 PM ESTWinter Weather AdvisoryCTP22 hr
Jan 21, 2:13 PM ESTWinter Weather AdvisoryCTP43 hr
Jan 24, 4:16 AM ESTWinter Storm WatchCTP23 hr
Jan 24, 4:16 AM ESTWinter Weather AdvisoryCTP42 hr
Jan 26, 8:45 PM ESTSpecial Weather StatementCTP60 min
Jan 26, 9:45 PM ESTSpecial Weather StatementCTP60 min
Jan 27, 6:34 AM ESTSpecial Weather StatementCTP56 min
Feb 3, 1:29 AM ESTSpecial Weather StatementCTP46 min
Feb 3, 11:33 AM ESTSpecial Weather StatementCTP42 min
Feb 21, 3:45 PM ESTWinter Weather AdvisoryCTP28 hr
Feb 26, 3:45 PM ESTWinter Weather AdvisoryCTP43 hr
Mar 2, 1:39 PM ESTWinter Weather AdvisoryCTP43 hr
Mar 3, 12:41 PM ESTWind AdvisoryCTP26 hr
Mar 6, 3:44 AM ESTWinter Weather AdvisoryCTP25 hr
Mar 7, 5:03 AM ESTSpecial Weather StatementCTP57 min
Mar 7, 5:55 AM ESTSpecial Weather StatementCTP65 min
Mar 9, 10:33 AM ESTWinter Weather AdvisoryCTP40 hr
Mar 29, 8:03 PM EDTSpecial Weather StatementCTP57 min
Mar 31, 3:22 PM EDTWind AdvisoryCTP35 hr
Apr 1, 11:15 AM EDTMesoscale DiscussionSPC3 hr
Apr 1, 2:02 PM EDTMesoscale DiscussionSPC118 min
Apr 1, 2:27 PM EDTSevere Thunderstorm WatchSPC5 hr
Apr 1, 3:07 PM EDTSevere Thunderstorm Warning Considerable damage threatCTP53 min
Apr 5, 8:40 PM EDTSpecial Weather StatementCTP35 min
Apr 5, 8:57 PM EDTSevere Thunderstorm WarningCTP33 min
Apr 5, 9:34 PM EDTSpecial Weather StatementCTP26 min
Apr 5, 10:35 PM EDTSpecial Weather StatementCTP40 min
Apr 11, 3:49 PM EDTFire Weather WatchCTP17 hr
Apr 12, 8:54 AM EDTRed Flag WarningCTP11 hr
Apr 16, 7:41 AM EDTDense Fog AdvisoryCTP2 hr
Apr 23, 12:52 PM EDTFrost AdvisoryCTP19 hr
Apr 23, 12:52 PM EDTFreeze WarningCTP19 hr
Apr 24, 3:14 AM EDTFreeze WatchCTP11 hr
Apr 24, 2:09 PM EDTFreeze WarningCTP19 hr
Apr 25, 6:51 PM EDTFreeze WatchCTP20 hr
Apr 26, 2:55 PM EDTFrost AdvisoryCTP8 hr
Apr 26, 2:55 PM EDTFreeze WarningCTP17 hr
May 4, 12:58 PM EDTFrost AdvisoryCTP20 hr
May 9, 12:16 PM EDTFrost AdvisoryCTP19 hr
May 16, 3:09 PM EDTFreeze WatchCTP20 hr
May 17, 11:05 AM EDTFreeze WarningCTP21 hr
May 25, 2:45 AM EDTFrost AdvisoryCTP28 hr
Jun 3, 1:27 PM EDTMesoscale DiscussionSPC2 hr
Jun 3, 1:52 PM EDTSpecial Weather StatementCTP38 min
Jun 5, 3:30 PM EDTFire Weather WatchCTP17 hr
Jun 6, 8:26 AM EDTRed Flag WarningCTP12 hr
Jun 9, 3:27 PM EDTSpecial Weather StatementCTP33 min
Jun 26, 12:36 PM EDTMesoscale DiscussionSPC2 hr
Jun 26, 1:11 PM EDTSevere Thunderstorm WatchSPC11 hr
Jul 1, 1:54 PM EDTMesoscale DiscussionSPC2 hr
Jul 2, 3:24 PM EDTMesoscale DiscussionSPC96 min
Jul 4, 4:10 AM EDTDense Fog AdvisoryCTP5 hr
Jul 6, 6:50 PM EDTSpecial Weather StatementCTP25 min
Jul 7, 3:44 PM EDTSpecial Weather StatementCTP31 min
Jul 13, 10:57 PM EDTSevere Thunderstorm WarningCTP48 min
Jul 13, 11:34 PM EDTSevere Thunderstorm WarningCTP41 min
Jul 13, 11:59 PM EDTSevere Thunderstorm WarningCTP46 min
Jul 14, 3:11 PM EDTSevere Thunderstorm WarningCTP49 min
Jul 14, 3:48 PM EDTSevere Thunderstorm WarningCTP42 min
Jul 14, 4:21 PM EDTSevere Thunderstorm WarningCTP39 min
Jul 15, 5:50 AM EDTDense Fog AdvisoryCTP3 hr
Jul 15, 10:25 PM EDTSpecial Weather StatementCTP50 min
Jul 17, 5:05 PM EDTSpecial Weather StatementCTP55 min
Jul 19, 4:10 PM EDTSpecial Weather StatementCTP35 min
Jul 19, 4:43 PM EDTSpecial Weather StatementCTP32 min
Jul 20, 6:19 PM EDTSevere Thunderstorm WatchSPC9 hr
Jul 20, 9:33 PM EDTSevere Thunderstorm WarningCTP42 min
Jul 20, 9:58 PM EDTSpecial Weather StatementCTP47 min
Jul 20, 10:05 PM EDTSevere Thunderstorm WarningCTP25 min
Jul 20, 10:07 PM EDTMesoscale DiscussionSPC113 min
Jul 20, 10:25 PM EDTAreal Flood AdvisoryCTP2 hr
Jul 24, 7:12 PM EDTSpecial Weather StatementCTP33 min
Jul 24, 7:28 PM EDTSpecial Weather StatementCTP32 min
Jul 25, 7:32 AM EDTSpecial Weather StatementCTP58 min
Jul 26, 5:36 AM EDTHeat AdvisoryCTP62 hr
Jul 26, 11:43 PM EDTSpecial Weather StatementCTP47 min
Jul 28, 9:01 PM EDTSevere Thunderstorm WarningCTP44 min
Jul 29, 6:06 AM EDTMesoscale DiscussionSPC114 min
Aug 4, 11:21 AM EDTMesoscale DiscussionSPC114 min
Aug 4, 12:10 PM EDTSevere Thunderstorm WatchSPC10 hr
Aug 4, 1:44 PM EDTSevere Thunderstorm WarningCTP46 min
Aug 4, 2:27 PM EDTSevere Thunderstorm WarningCTP48 min
Aug 4, 2:41 PM EDTSpecial Weather StatementCTP34 min
Aug 4, 3:16 PM EDTSevere Thunderstorm WarningCTP59 min
Aug 4, 3:18 PM EDTSpecial Weather StatementCTP42 min
Aug 4, 3:47 PM EDTSevere Thunderstorm WarningCTP31 min
Aug 4, 6:13 PM EDTMesoscale DiscussionSPC2 hr
Aug 5, 5:57 AM EDTDense Fog AdvisoryCTP3 hr
Aug 7, 12:14 PM EDTMesoscale DiscussionSPC2 hr
Aug 7, 1:20 PM EDTTornado WatchSPC11 hr
Aug 7, 1:49 PM EDTSevere Thunderstorm WarningCTP41 min
Aug 7, 2:01 PM EDTTornado WarningCTP29 min
Aug 7, 2:24 PM EDTSevere Thunderstorm WarningCTP51 min
Aug 7, 3:02 PM EDTSevere Thunderstorm WarningCTP43 min
Aug 7, 3:17 PM EDTMesoscale DiscussionSPC88 min
Aug 12, 12:50 PM EDTTornado WatchSPC8 hr
Aug 12, 4:04 PM EDTMesoscale DiscussionSPC116 min
Aug 17, 10:37 PM EDTAreal Flood AdvisoryCTP3 hr
Aug 25, 2:02 AM EDTMesoscale DiscussionSPC118 min
Aug 29, 1:57 PM EDTFlood WatchCTP14 hr
Aug 29, 11:01 PM EDTAreal Flood AdvisoryCTP89 min
Aug 29, 11:54 PM EDTAreal Flood AdvisoryCTP2 hr
Aug 30, 2:25 AM EDTAreal Flood AdvisoryCTP2 hr
Sep 7, 11:58 AM EDTMesoscale DiscussionSPC3 hr
Sep 7, 1:00 PM EDTSpecial Weather StatementCTP30 min
Sep 7, 1:14 PM EDTSevere Thunderstorm WatchSPC8 hr
Sep 7, 1:28 PM EDTSevere Thunderstorm WarningCTP47 min
Sep 7, 9:30 PM EDTSpecial Weather StatementCTP45 min
Sep 9, 2:08 PM EDTMesoscale DiscussionSPC3 hr
Sep 9, 3:07 PM EDTSpecial Weather StatementCTP23 min
Sep 9, 3:34 PM EDTSpecial Weather StatementCTP26 min
Sep 9, 3:47 PM EDTSevere Thunderstorm WarningCTP43 min
Sep 9, 4:15 PM EDTSpecial Weather StatementCTP30 min
Sep 9, 4:23 PM EDTSevere Thunderstorm WatchSPC5 hr
Sep 9, 4:32 PM EDTSevere Thunderstorm WarningCTP43 min
Oct 1, 2:31 AM EDTDense Fog AdvisoryCTP7 hr
Oct 3, 3:46 AM EDTDense Fog AdvisoryCTP6 hr
Oct 4, 2:53 AM EDTDense Fog AdvisoryCTP7 hr
Oct 21, 3:45 PM EDTFreeze WatchCTP23 hr
Oct 23, 1:30 PM EDTFrost AdvisoryCTP20 hr
Oct 30, 3:02 AM EDTFreeze WarningCTP30 hr
Nov 20, 3:14 AM ESTWinter Weather AdvisoryCTP35 hr
Nov 27, 10:02 PM ESTSpecial Weather StatementCTP28 min
Nov 28, 4:55 AM ESTSpecial Weather StatementCTP50 min
Nov 28, 12:38 PM ESTSnow Squall WarningCTP22 min
Nov 28, 1:05 PM ESTSnow Squall WarningCTP25 min
Nov 28, 1:39 PM ESTSpecial Weather StatementCTP21 min
Dec 3, 5:41 PM ESTSevere Thunderstorm WarningCTP49 min
Dec 11, 9:27 AM ESTSpecial Weather StatementCTP18 min

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 archive20222024

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.