Alert archive / Pennsylvania / Warren County

Weather alerts in Warren County, Pennsylvania, 2018

106 weather alerts in 2018, 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 2018. Tap one for its archive.

Alerts
106
Warnings
19
Watches
14
Advisories
30
Busiest month
January13 alerts
Busiest day
October 2, 20187 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 Warren County in 2018 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Warren County, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%10%
Severe thunderstorm warnings11918%2286%38 min
Flash flood warnings00

Each office's whole area, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS State College, PA: tornado warnings22577%1050%7 min
NWS State College, PA: severe thunderstorm warnings1228134%24480%30 min
NWS State College, PA: flash flood warnings573637%8988%96 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 1, 4:00 AM ESTWinter Weather AdvisoryCTP24 hr
Jan 3, 3:29 AM ESTWind Chill WatchCTP24 hr
Jan 3, 2:36 PM ESTWinter Weather AdvisoryCTP64 hr
Jan 4, 3:46 AM ESTWind Chill WarningCTP62 hr
Jan 4, 3:46 AM ESTWind Chill AdvisoryCTP3 days
Jan 7, 2:38 PM ESTWinter Weather AdvisoryCTP40 hr
Jan 10, 3:07 PM ESTWinter Storm WatchCTP38 hr
Jan 11, 4:34 AM ESTFlood WatchCTP51 hr
Jan 11, 4:16 PM ESTWinter Storm WarningCTP41 hr
Jan 12, 5:09 AM ESTAreal Flood AdvisoryCTP3 hr
Jan 12, 4:50 PM ESTAreal Flood AdvisoryCTP3 hr
Jan 12, 7:04 PM ESTMesoscale DiscussionSPC6 hr
Jan 29, 4:32 AM ESTWinter Weather AdvisoryCTP38 hr
Feb 1, 4:59 PM ESTSpecial Weather StatementCTP2 hr
Feb 1, 7:15 PM ESTSpecial Weather StatementCTP90 min
Feb 3, 2:44 PM ESTWinter Weather AdvisoryCTP42 hr
Feb 5, 2:40 PM ESTWinter Storm WatchCTP24 hr
Feb 6, 2:41 PM ESTWinter Storm WarningCTP27 hr
Feb 7, 5:28 AM ESTMesoscale DiscussionSPC5 hr
Feb 10, 6:21 AM ESTSpecial Weather StatementCTP54 min
Feb 10, 2:38 PM ESTWinter Weather AdvisoryCTP19 hr
Feb 13, 10:50 PM ESTSpecial Weather StatementCTP25 min
Feb 21, 2:14 PM ESTWinter Weather AdvisoryCTP46 hr
Feb 22, 11:29 AM ESTFlood WatchCTP68 hr
Feb 28, 3:10 PM ESTWinter Storm WatchCTP25 hr
Mar 1, 3:48 PM ESTWinter Storm WarningCTP23 hr
Mar 1, 8:43 PM ESTMesoscale DiscussionSPC6 hr
Mar 6, 4:21 PM ESTWinter Weather AdvisoryCTP22 hr
Mar 8, 3:32 AM ESTWinter Weather AdvisoryCTP39 hr
Mar 13, 3:24 AM EDTWinter Weather AdvisoryCTP41 hr
Mar 27, 5:00 AM EDTWinter Weather AdvisoryCTP12 hr
Mar 29, 2:28 AM EDTDense Fog AdvisoryCTP8 hr
Apr 3, 3:25 PM EDTWind AdvisoryCTP12 hr
Apr 4, 3:36 AM EDTHigh Wind WarningCTP16 hr
Apr 4, 12:33 PM EDTSpecial Weather StatementCTP57 min
Apr 4, 1:37 PM EDTSpecial Weather StatementCTP53 min
Apr 16, 1:45 PM EDTSpecial Weather StatementCTP45 min
Apr 18, 2:51 PM EDTWinter Weather AdvisoryCTP13 hr
May 2, 4:45 AM EDTRed Flag WarningCTP16 hr
May 4, 1:04 PM EDTMesoscale DiscussionSPC86 min
May 4, 2:23 PM EDTMesoscale DiscussionSPC97 min
May 4, 2:44 PM EDTSevere Thunderstorm WatchSPC6 hr
May 4, 3:42 PM EDTSpecial Weather StatementCTP48 min
May 4, 3:50 PM EDTSevere Thunderstorm WarningCTP55 min
May 4, 4:20 PM EDTMesoscale DiscussionSPC55 min
May 10, 12:04 PM EDTSpecial Weather StatementCTP56 min
May 12, 2:13 PM EDTAreal Flood AdvisoryCTP5 hr
May 19, 8:04 PM EDTSpecial Weather StatementCTP56 min
Jun 13, 3:30 PM EDTMesoscale DiscussionSPC60 min
Jun 13, 4:06 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 13, 6:10 PM EDTMesoscale DiscussionSPC95 min
Jun 13, 7:12 PM EDTMesoscale DiscussionSPC93 min
Jun 18, 11:43 AM EDTSpecial Weather StatementCTP47 min
Jun 18, 12:36 PM EDTSpecial Weather StatementCTP54 min
Jun 18, 6:56 PM EDTSpecial Weather StatementCTP64 min
Jun 18, 7:51 PM EDTSevere Thunderstorm WarningCTP54 min
Jul 2, 3:53 PM EDTSpecial Weather StatementCTP52 min
Jul 2, 4:07 PM EDTSevere Thunderstorm WarningCTP68 min
Jul 4, 9:54 AM EDTFlash Flood WatchCTP10 hr
Jul 5, 4:17 AM EDTFlash Flood WatchCTP30 hr
Jul 5, 12:51 PM EDTSevere Thunderstorm WarningCTP84 min
Jul 5, 2:27 PM EDTSpecial Weather StatementCTP63 min
Jul 16, 7:46 PM EDTSpecial Weather StatementCTP59 min
Jul 16, 8:17 PM EDTSevere Thunderstorm WarningCTP73 min
Jul 26, 4:30 PM EDTMesoscale DiscussionSPC2 hr
Jul 26, 8:34 PM EDTSpecial Weather StatementCTP56 min
Aug 4, 2:59 AM EDTDense Fog AdvisoryCTP6 hr
Aug 18, 1:13 AM EDTSpecial Weather StatementCTP77 min
Aug 21, 5:14 PM EDTSpecial Weather StatementCTP46 min
Aug 21, 5:36 PM EDTSevere Thunderstorm WarningCTP54 min
Aug 21, 6:38 PM EDTSpecial Weather StatementCTP37 min
Aug 21, 7:24 PM EDTSevere Thunderstorm WarningCTP66 min
Aug 27, 7:34 AM EDTSpecial Weather StatementCTP71 min
Aug 29, 5:09 PM EDTSpecial Weather StatementCTP36 min
Aug 29, 5:24 PM EDTSevere Thunderstorm WarningCTP51 min
Aug 29, 6:23 PM EDTSpecial Weather StatementCTP37 min
Sep 4, 8:15 PM EDTSpecial Weather StatementCTP45 min
Sep 8, 3:33 AM EDTFlood WatchCTP64 hr
Sep 16, 7:11 AM EDTDense Fog AdvisoryCTP3 hr
Sep 21, 4:50 PM EDTSevere Thunderstorm WatchSPC6 hr
Sep 21, 5:29 PM EDTSevere Thunderstorm WarningCTP2 hr
Sep 21, 6:30 PM EDTSevere Thunderstorm WarningCTP60 min
Sep 21, 7:04 PM EDTMesoscale DiscussionSPC116 min
Sep 23, 2:53 AM EDTSpecial Weather StatementCTP3 hr
Sep 23, 5:33 AM EDTSpecial Weather StatementCTP3 hr
Sep 26, 9:42 AM EDTSpecial Weather StatementCTP33 min
Oct 2, 2:26 PM EDTMesoscale DiscussionSPC2 hr
Oct 2, 2:55 PM EDTTornado WatchSPC8 hr
Oct 2, 3:11 PM EDTSevere Thunderstorm WarningCTP79 min
Oct 2, 3:38 PM EDTTornado WarningCTP67 min
Oct 2, 4:06 PM EDTAreal Flood AdvisoryCTP3 hr
Oct 2, 4:43 PM EDTMesoscale DiscussionSPC2 hr
Oct 2, 7:24 PM EDTMesoscale DiscussionSPC81 min
Oct 6, 5:27 PM EDTSpecial Weather StatementCTP63 min
Oct 6, 6:06 PM EDTAreal Flood AdvisoryCTP3 hr
Oct 8, 3:30 AM EDTDense Fog AdvisoryCTP7 hr
Oct 13, 1:13 PM EDTFrost AdvisoryCTP19 hr
Nov 14, 3:40 PM ESTWinter Weather AdvisoryCTP38 hr
Nov 16, 8:47 PM ESTWinter Weather AdvisoryCTP11 hr
Nov 23, 11:02 AM ESTWinter Weather AdvisoryCTP27 hr
Nov 26, 10:20 AM ESTWinter Storm WatchCTP4 hr
Nov 26, 1:56 PM ESTWinter Storm WarningCTP52 hr
Nov 29, 1:26 PM ESTWinter Weather AdvisoryCTP24 hr
Dec 2, 8:01 PM ESTSpecial Weather StatementCTP89 min
Dec 6, 3:51 AM ESTWinter Weather AdvisoryCTP24 hr
Dec 30, 1:10 AM ESTWinter Weather AdvisoryCTP6 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 archive20172019

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.