Alert archive / Pennsylvania / Warren County

Weather alerts in Warren County, Pennsylvania, 2015

102 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Warren County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts
102
Warnings
16
Watches
19
Advisories
35
Busiest month
January18 alerts
Busiest day
July 7, 20156 alerts

Over time

By month

Warning verification

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

Warren County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings8713%1741%28 min
Flash flood warnings00

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS State College, PA: tornado warnings12192%714%11 min
NWS State College, PA: severe thunderstorm warnings17411136%30278%27 min
NWS State College, PA: flash flood warnings17947%1593%47 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 2, 3:04 PM ESTWinter Weather AdvisoryCTP29 hr
Jan 3, 9:59 AM ESTMesoscale DiscussionSPC4 hr
Jan 5, 8:09 PM ESTLake Effect Snow WatchCTP19 hr
Jan 6, 3:28 PM ESTWind Chill AdvisoryCTP46 hr
Jan 6, 3:34 PM ESTLake Effect Snow AdvisoryCTP30 hr
Jan 6, 10:35 PM ESTLake Effect Snow WarningCTP23 hr
Jan 7, 8:46 AM ESTSpecial Weather StatementCTP29 min
Jan 8, 6:05 AM ESTWinter Weather AdvisoryCTP24 hr
Jan 9, 2:52 AM ESTLake Effect Snow AdvisoryCTP19 hr
Jan 9, 4:23 AM ESTWind Chill AdvisoryCTP32 hr
Jan 11, 4:49 AM ESTWinter Weather AdvisoryCTP38 hr
Jan 18, 6:48 PM ESTSpecial Weather StatementCTP3 hr
Jan 24, 5:35 PM ESTFreezing Rain AdvisoryCTP11 hr
Jan 25, 5:15 AM ESTWinter Weather AdvisoryCTP50 hr
Jan 28, 2:38 PM ESTWinter Weather AdvisoryCTP40 hr
Jan 30, 3:19 AM ESTWind Chill AdvisoryCTP29 hr
Jan 30, 3:42 PM ESTWinter Storm WatchCTP23 hr
Jan 31, 2:57 PM ESTWinter Storm WarningCTP43 hr
Feb 1, 9:52 PM ESTMesoscale DiscussionSPC6 hr
Feb 2, 2:48 PM ESTWind Chill AdvisoryCTP17 hr
Feb 4, 6:08 PM ESTWinter Weather AdvisoryCTP10 hr
Feb 5, 3:50 AM ESTWind Chill AdvisoryCTP29 hr
Feb 8, 4:23 AM ESTWinter Weather AdvisoryCTP34 hr
Feb 9, 4:09 AM ESTFreezing Rain AdvisoryCTP18 hr
Feb 11, 4:02 AM ESTWind Chill WatchCTP23 hr
Feb 12, 3:10 AM ESTWind Chill WarningCTP32 hr
Feb 13, 3:22 AM ESTWind Chill WatchCTP24 hr
Feb 13, 2:16 PM ESTWinter Weather AdvisoryCTP41 hr
Feb 14, 3:42 AM ESTWind Chill WarningCTP54 hr
Feb 18, 4:05 AM ESTWind Chill WarningCTP56 hr
Feb 20, 3:10 PM ESTWinter Weather AdvisoryCTP39 hr
Feb 22, 3:13 AM ESTWind Chill WatchCTP10 hr
Feb 22, 3:13 AM ESTWind Chill AdvisoryCTP54 hr
Feb 23, 3:39 AM ESTWind Chill WarningCTP29 hr
Feb 27, 1:23 PM ESTWinter Storm WatchCTP23 hr
Feb 28, 12:14 PM ESTWinter Weather AdvisoryCTP43 hr
Mar 2, 1:54 PM ESTWinter Weather AdvisoryCTP41 hr
Mar 10, 5:30 PM EDTDense Fog AdvisoryCTP16 hr
Mar 13, 2:41 AM EDTFlood WatchCTP41 hr
Mar 26, 4:00 AM EDTSpecial Weather StatementCTP3 hr
Mar 30, 4:00 PM EDTSpecial Weather StatementCTP3 hr
Mar 30, 7:45 PM EDTSpecial Weather StatementCTP9 hr
Mar 31, 3:11 AM EDTWinter Weather AdvisoryCTP17 hr
May 11, 7:26 PM EDTMesoscale DiscussionSPC64 min
May 11, 8:18 PM EDTSevere Thunderstorm WatchSPC4 hr
May 11, 9:16 PM EDTSpecial Weather StatementCTP59 min
May 11, 9:26 PM EDTSevere Thunderstorm WarningCTP49 min
May 13, 4:18 AM EDTFrost AdvisoryCTP28 hr
May 21, 3:42 AM EDTFreeze WatchCTP23 hr
May 22, 2:18 AM EDTFreeze WarningCTP30 hr
May 30, 7:23 PM EDTMesoscale DiscussionSPC67 min
May 30, 9:32 PM EDTSpecial Weather StatementCTP58 min
May 31, 11:22 AM EDTSpecial Weather StatementCTP23 min
Jun 8, 11:13 AM EDTSpecial Weather StatementCTP62 min
Jun 12, 2:54 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 12, 4:02 PM EDTSpecial Weather StatementCTP43 min
Jun 12, 4:28 PM EDTSevere Thunderstorm WarningCTP92 min
Jun 14, 2:48 PM EDTAreal Flood AdvisoryCTP3 hr
Jun 14, 2:51 PM EDTFlash Flood WatchCTP14 hr
Jun 14, 7:35 PM EDTSpecial Weather StatementCTP55 min
Jun 15, 2:36 PM EDTFlash Flood WatchCTP18 hr
Jun 23, 4:24 AM EDTMesoscale DiscussionSPC66 min
Jun 23, 5:07 AM EDTSpecial Weather StatementCTP53 min
Jun 23, 5:30 AM EDTMesoscale DiscussionSPC60 min
Jun 23, 5:50 AM EDTSevere Thunderstorm WarningCTP55 min
Jun 26, 3:55 AM EDTFlood WatchCTP44 hr
Jun 30, 1:21 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 30, 7:38 PM EDTMesoscale DiscussionSPC67 min
Jul 7, 3:57 PM EDTSpecial Weather StatementCTP63 min
Jul 7, 4:31 PM EDTMesoscale DiscussionSPC2 hr
Jul 7, 4:36 PM EDTSevere Thunderstorm WarningCTP39 min
Jul 7, 5:15 PM EDTSevere Thunderstorm WarningCTP45 min
Jul 7, 6:09 PM EDTSpecial Weather StatementCTP51 min
Jul 7, 6:50 PM EDTSevere Thunderstorm WarningCTP55 min
Jul 9, 4:50 AM EDTFlash Flood WatchCTP12 hr
Jul 13, 10:07 PM EDTSpecial Weather StatementCTP53 min
Jul 19, 2:11 PM EDTMesoscale DiscussionSPC2 hr
Jul 19, 3:18 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 19, 6:15 PM EDTSevere Thunderstorm WarningCTP60 min
Jul 19, 6:38 PM EDTSevere Thunderstorm WarningCTP47 min
Jul 19, 6:51 PM EDTAreal Flood AdvisoryCTP114 min
Jul 19, 8:32 PM EDTMesoscale DiscussionSPC88 min
Aug 10, 11:28 PM EDTAreal Flood AdvisoryCTP3 hr
Aug 20, 11:49 AM EDTMesoscale DiscussionSPC2 hr
Sep 1, 8:51 AM EDTSpecial Weather StatementCTP114 min
Sep 3, 10:24 PM EDTAreal Flood AdvisoryCTP3 hr
Sep 4, 8:48 AM EDTSpecial Weather StatementCTP117 min
Sep 4, 6:42 PM EDTSpecial Weather StatementCTP33 min
Sep 4, 8:07 PM EDTSpecial Weather StatementCTP23 min
Sep 19, 4:10 PM EDTMesoscale DiscussionSPC3 hr
Sep 29, 4:19 AM EDTFlash Flood WatchCTP24 hr
Sep 29, 6:50 PM EDTAreal Flood AdvisoryCTP6 hr
Nov 11, 2:44 PM ESTWind AdvisoryCTP31 hr
Nov 13, 7:55 PM ESTWinter Weather AdvisoryCTP11 hr
Nov 21, 4:20 AM ESTLake Effect Snow WatchCTP13 hr
Dec 5, 7:03 PM ESTDense Fog AdvisoryCTP16 hr
Dec 7, 8:40 PM ESTDense Fog AdvisoryCTP17 hr
Dec 17, 3:39 AM ESTLake Effect Snow WatchCTP24 hr
Dec 18, 3:36 AM ESTLake Effect Snow WarningCTP41 hr
Dec 18, 8:58 PM ESTSpecial Weather StatementCTP62 min
Dec 27, 8:01 AM ESTAreal Flood AdvisoryCTP3 hr
Dec 28, 3:44 AM ESTWinter Weather AdvisoryCTP30 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 archive20142016

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.