Alert archive / Pennsylvania / Warren County

Weather alerts in Warren County, Pennsylvania, 2013

133 weather alerts in 2013, 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 2013. Tap one for its archive.

Alerts
133
Warnings
31
Watches
20
Advisories
40
Busiest month
May25 alerts
Busiest day
May 29, 20139 alerts

Over time

By month

Warning verification

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

1 of 2 tornado warnings covering Warren County in 2013 had a tornado report inside them; 1 of 2 tornado reports fell inside a warning, on average 5 minutes after it went out.

Warren County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings2150%250%5 min
Severe thunderstorm warnings13128%1292%35 min
Flash flood warnings110%1100%14 min

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS State College, PA: tornado warnings7271%633%5 min
NWS State College, PA: severe thunderstorm warnings21214930%37187%29 min
NWS State College, PA: flash flood warnings332330%7292%72 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 11, 9:49 PM ESTDense Fog AdvisoryCTP13 hr
Jan 12, 7:22 PM ESTDense Fog AdvisoryCTP17 hr
Jan 20, 12:35 AM ESTWind AdvisoryCTP12 hr
Jan 20, 7:03 PM ESTLake Effect Snow WatchCTP9 hr
Jan 21, 4:12 AM ESTLake Effect Snow AdvisoryCTP25 hr
Jan 21, 4:12 AM ESTWind Chill AdvisoryCTP57 hr
Jan 22, 5:02 AM ESTLake Effect Snow WarningCTP39 hr
Jan 22, 8:43 PM ESTWind Chill AdvisoryCTP16 hr
Jan 27, 4:12 AM ESTWinter Weather AdvisoryCTP39 hr
Jan 28, 12:22 AM ESTMesoscale DiscussionSPC4 hr
Jan 28, 4:32 AM ESTMesoscale DiscussionSPC5 hr
Jan 29, 2:58 PM ESTFlood WatchCTP37 hr
Jan 30, 9:32 AM ESTWind AdvisoryCTP32 hr
Jan 30, 2:30 PM ESTLake Effect Snow WatchCTP14 hr
Jan 31, 4:23 AM ESTLake Effect Snow WarningCTP40 hr
Feb 1, 6:30 PM ESTWinter Weather AdvisoryCTP30 hr
Feb 3, 1:27 PM ESTLake Effect Snow AdvisoryCTP30 hr
Feb 6, 2:03 PM ESTWinter Storm WatchCTP24 hr
Feb 7, 2:11 PM ESTWinter Storm WarningCTP23 hr
Feb 7, 2:11 PM ESTWinter Weather AdvisoryCTP37 hr
Feb 10, 1:10 PM ESTFreezing Rain AdvisoryCTP20 hr
Feb 11, 4:06 AM ESTWind AdvisoryCTP29 hr
Feb 18, 2:45 PM ESTWinter Weather AdvisoryCTP21 hr
Feb 19, 3:36 AM ESTWind AdvisoryCTP7 hr
Feb 20, 8:50 AM ESTLake Effect Snow AdvisoryCTP10 hr
Feb 21, 2:53 PM ESTWinter Weather AdvisoryCTP45 hr
Feb 25, 8:02 PM ESTWinter Weather AdvisoryCTP41 hr
Mar 17, 2:47 PM EDTWinter Weather AdvisoryCTP41 hr
Mar 19, 10:24 PM EDTLake Effect Snow AdvisoryCTP13 hr
Mar 20, 10:01 PM EDTLake Effect Snow AdvisoryCTP38 hr
Apr 5, 11:14 AM EDTRed Flag WarningCTP9 hr
Apr 10, 1:33 PM EDTMesoscale DiscussionSPC117 min
Apr 11, 1:37 PM EDTFlood WatchCTP15 hr
Apr 16, 9:32 AM EDTSpecial Weather StatementCTP43 min
May 10, 2:21 PM EDTMesoscale DiscussionSPC54 min
May 10, 3:43 PM EDTSpecial Weather StatementCTP62 min
May 10, 4:06 PM EDTSevere Thunderstorm WarningCTP69 min
May 10, 5:11 PM EDTMesoscale DiscussionSPC94 min
May 10, 5:39 PM EDTSpecial Weather StatementCTP36 min
May 10, 6:18 PM EDTSpecial Weather StatementCTP42 min
May 22, 2:27 PM EDTSevere Thunderstorm WatchSPC7 hr
May 22, 7:45 PM EDTSpecial Weather StatementCTP30 min
May 24, 4:41 AM EDTFreeze WarningCTP27 hr
May 25, 3:34 AM EDTFreeze WatchCTP10 hr
May 25, 6:44 AM EDTRed Flag WarningCTP12 hr
May 25, 2:00 PM EDTFreeze WarningCTP18 hr
May 26, 2:15 AM EDTFreeze WatchCTP11 hr
May 26, 4:07 AM EDTFreeze WarningCTP28 hr
May 26, 1:34 PM EDTFrost AdvisoryCTP18 hr
May 28, 7:50 PM EDTSpecial Weather StatementCTP55 min
May 28, 8:07 PM EDTSevere Thunderstorm WarningCTP53 min
May 28, 8:19 PM EDTTornado WarningCTP56 min
May 28, 8:42 PM EDTMesoscale DiscussionSPC93 min
May 28, 9:14 PM EDTSevere Thunderstorm WarningCTP61 min
May 28, 9:55 PM EDTTornado WarningCTP35 min
May 28, 10:15 PM EDTSevere Thunderstorm WarningCTP75 min
May 28, 10:51 PM EDTFlash Flood WarningCTP6 hr
May 29, 11:38 AM EDTMesoscale DiscussionSPC2 hr
May 29, 5:39 PM EDTSpecial Weather StatementCTP36 min
Jun 2, 2:38 AM EDTSpecial Weather StatementCTP52 min
Jun 12, 12:41 PM EDTFlood WatchCTP27 hr
Jun 13, 1:59 AM EDTSpecial Weather StatementCTP46 min
Jun 13, 3:58 AM EDTSevere Thunderstorm WatchSPC7 hr
Jun 13, 4:20 AM EDTSpecial Weather StatementCTP85 min
Jun 13, 5:48 AM EDTAreal Flood AdvisoryCTP117 min
Jun 25, 12:22 PM EDTMesoscale DiscussionSPC2 hr
Jun 25, 5:25 PM EDTSevere Thunderstorm WarningCTP65 min
Jun 25, 5:59 PM EDTSevere Thunderstorm WarningCTP61 min
Jun 27, 9:45 AM EDTFlash Flood WatchCTP12 hr
Jun 28, 11:40 AM EDTSpecial Weather StatementCTP50 min
Jun 28, 12:12 PM EDTSpecial Weather StatementCTP33 min
Jun 28, 1:02 PM EDTMesoscale DiscussionSPC118 min
Jun 30, 2:01 PM EDTFlash Flood WatchCTP56 hr
Jun 30, 3:42 PM EDTSpecial Weather StatementCTP33 min
Jun 30, 3:47 PM EDTSpecial Weather StatementCTP28 min
Jul 1, 10:54 AM EDTAreal Flood AdvisoryCTP3 hr
Jul 1, 12:58 PM EDTAreal Flood WarningCTP6 hr
Jul 10, 3:45 PM EDTMesoscale DiscussionSPC30 min
Jul 10, 3:56 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 10, 4:11 PM EDTSevere Thunderstorm WarningCTP64 min
Jul 10, 5:02 PM EDTSevere Thunderstorm WarningCTP58 min
Jul 19, 2:25 PM EDTSpecial Weather StatementCTP35 min
Jul 19, 3:12 PM EDTSpecial Weather StatementCTP48 min
Jul 20, 5:36 AM EDTSpecial Weather StatementCTP39 min
Jul 20, 6:49 PM EDTSpecial Weather StatementCTP56 min
Jul 23, 4:44 PM EDTSevere Thunderstorm WarningCTP46 min
Jul 23, 5:09 PM EDTSpecial Weather StatementCTP66 min
Jul 23, 5:39 PM EDTSevere Thunderstorm WarningCTP66 min
Aug 8, 3:45 PM EDTMesoscale DiscussionSPC90 min
Aug 13, 1:52 AM EDTSpecial Weather StatementCTP53 min
Aug 13, 2:19 AM EDTAreal Flood AdvisoryCTP3 hr
Aug 13, 2:34 AM EDTSevere Thunderstorm WarningCTP56 min
Aug 20, 3:48 AM EDTDense Fog AdvisoryCTP5 hr
Aug 22, 2:03 PM EDTMesoscale DiscussionSPC2 hr
Aug 26, 6:34 PM EDTSpecial Weather StatementCTP41 min
Sep 2, 12:33 PM EDTMesoscale DiscussionSPC117 min
Sep 2, 1:07 PM EDTSevere Thunderstorm WarningCTP83 min
Sep 2, 2:19 PM EDTSevere Thunderstorm WarningCTP56 min
Sep 2, 3:18 PM EDTSevere Thunderstorm WatchSPC7 hr
Sep 11, 11:42 AM EDTMesoscale DiscussionSPC63 min
Sep 11, 12:33 PM EDTSevere Thunderstorm WatchSPC8 hr
Sep 11, 2:47 PM EDTMesoscale DiscussionSPC58 min
Sep 16, 11:30 AM EDTFrost AdvisoryCTP21 hr
Sep 17, 2:11 PM EDTFrost AdvisoryCTP18 hr
Sep 23, 4:50 AM EDTFrost AdvisoryCTP28 hr
Sep 24, 2:08 PM EDTFrost AdvisoryCTP20 hr
Oct 24, 2:22 PM EDTLake Effect Snow AdvisoryCTP20 hr
Oct 31, 9:48 PM EDTWind AdvisoryCTP16 hr
Nov 1, 3:00 AM EDTSpecial Weather StatementCTP45 min
Nov 8, 7:38 AM ESTLake Effect Snow AdvisoryCTP8 hr
Nov 17, 12:07 PM ESTWind AdvisoryCTP19 hr
Nov 17, 7:36 PM ESTMesoscale DiscussionSPC54 min
Nov 17, 8:23 PM ESTSevere Thunderstorm WatchSPC4 hr
Nov 17, 10:07 PM ESTSpecial Weather StatementCTP38 min
Nov 17, 10:24 PM ESTMesoscale DiscussionSPC66 min
Nov 22, 3:59 PM ESTLake Effect Snow WatchCTP19 hr
Nov 23, 10:55 AM ESTLake Effect Snow WarningCTP35 hr
Nov 25, 3:33 AM ESTWinter Storm WatchCTP12 hr
Nov 25, 3:20 PM ESTWinter Storm WarningCTP61 hr
Nov 26, 6:15 PM ESTMesoscale DiscussionSPC4 hr
Dec 3, 7:13 AM ESTSpecial Weather StatementCTP92 min
Dec 5, 12:11 PM ESTWinter Weather AdvisoryCTP37 hr
Dec 6, 10:26 AM ESTWinter Storm WarningCTP14 hr
Dec 7, 6:13 PM ESTWinter Weather AdvisoryCTP40 hr
Dec 11, 1:26 AM ESTLake Effect Snow AdvisoryCTP27 hr
Dec 12, 9:08 PM ESTWinter Storm WatchCTP14 hr
Dec 13, 11:32 AM ESTWinter Storm WarningCTP40 hr
Dec 15, 4:13 AM ESTLake Effect Snow AdvisoryCTP30 hr
Dec 20, 4:32 AM ESTFlood WatchCTP56 hr
Dec 21, 5:47 AM ESTRiver Flood WarningCTP28 hr
Dec 24, 4:10 AM ESTWinter Weather AdvisoryCTP18 hr
Dec 24, 8:55 AM ESTRiver Flood WarningCTP41 hr
Dec 31, 4:11 AM ESTLake Effect Snow AdvisoryCTP20 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 archive20122014

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.