Alert archive / Pennsylvania / Adams County

Weather alerts in Adams County, Pennsylvania, 2014

170 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Adams County and its neighbors

Each county as a circle sized by its count in 2014. Tap one for its archive.

Alerts
170
Warnings
27
Watches
31
Advisories
47
Busiest month
July31 alerts
Busiest day
July 14, 20148 alerts

Over time

By month

Warning verification

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

Adams County, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings11736%12100%26 min
Flash flood warnings2150%0

Each office's whole area, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS State College, PA: tornado warnings16381%450%22 min
NWS State College, PA: severe thunderstorm warnings1589937%24286%27 min
NWS State College, PA: flash flood warnings201335%7084%219 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, 2:30 PM ESTWinter Weather AdvisoryCTP36 hr
Jan 4, 2:38 PM ESTFreezing Rain AdvisoryCTP33 hr
Jan 5, 12:07 PM ESTMesoscale DiscussionSPC6 hr
Jan 5, 3:01 PM ESTIce Storm WarningCTP7 hr
Jan 6, 12:37 AM ESTDense Fog AdvisoryCTP5 hr
Jan 6, 5:19 AM ESTWind Chill AdvisoryCTP51 hr
Jan 9, 1:10 PM ESTFreezing Rain AdvisoryCTP23 hr
Jan 10, 1:22 PM ESTFlood WatchCTP47 hr
Jan 10, 11:15 PM ESTSpecial Weather StatementCTP3 hr
Jan 11, 1:08 AM ESTDense Fog AdvisoryCTP8 hr
Jan 11, 2:47 PM ESTAreal Flood AdvisoryCTP3 hr
Jan 14, 6:25 PM ESTDense Fog AdvisoryCTP18 hr
Jan 14, 10:33 PM ESTSpecial Weather StatementCTP3 hr
Jan 20, 4:35 AM ESTWinter Storm WatchCTP9 hr
Jan 20, 1:35 PM ESTWinter Storm WarningCTP32 hr
Jan 21, 4:52 AM ESTWind Chill AdvisoryCTP31 hr
Jan 21, 11:03 AM ESTMesoscale DiscussionSPC6 hr
Jan 21, 4:28 PM ESTMesoscale DiscussionSPC6 hr
Jan 25, 8:40 PM ESTSpecial Weather StatementCTP80 min
Jan 25, 10:40 PM ESTSpecial Weather StatementCTP50 min
Jan 25, 10:42 PM ESTSpecial Weather StatementCTP48 min
Jan 27, 2:49 AM ESTWind Chill AdvisoryCTP33 hr
Feb 2, 3:46 AM ESTWinter Weather AdvisoryCTP35 hr
Feb 2, 5:06 PM ESTWinter Storm WarningCTP21 hr
Feb 3, 7:38 AM ESTWinter Storm WatchCTP20 hr
Feb 4, 4:05 AM ESTWinter Storm WarningCTP36 hr
Feb 4, 9:45 PM ESTMesoscale DiscussionSPC6 hr
Feb 9, 2:32 PM ESTSpecial Weather StatementCTP88 min
Feb 11, 2:32 AM ESTWinter Storm WatchCTP12 hr
Feb 11, 2:30 PM ESTWinter Storm WarningCTP58 hr
Feb 13, 8:00 AM ESTMesoscale DiscussionSPC5 hr
Feb 14, 11:29 AM ESTWinter Weather AdvisoryCTP27 hr
Feb 17, 4:35 AM ESTWinter Weather AdvisoryCTP31 hr
Feb 17, 9:56 PM ESTSpecial Weather StatementCTP109 min
Feb 17, 9:58 PM ESTSpecial Weather StatementCTP107 min
Feb 17, 11:51 PM ESTSpecial Weather StatementCTP54 min
Feb 18, 3:09 PM ESTFreezing Rain AdvisoryCTP21 hr
Feb 19, 5:57 AM ESTMesoscale DiscussionSPC3 hr
Mar 1, 3:33 AM ESTWinter Storm WatchCTP25 hr
Mar 2, 4:13 AM ESTWinter Storm WarningCTP16 hr
Mar 2, 4:13 AM ESTWinter Weather AdvisoryCTP28 hr
Mar 12, 3:14 AM EDTWind AdvisoryCTP32 hr
Mar 28, 3:40 PM EDTFlood WatchCTP57 hr
Mar 29, 10:57 AM EDTWinter Weather AdvisoryCTP38 hr
Mar 29, 10:29 PM EDTAreal Flood AdvisoryCTP3 hr
Mar 30, 10:40 AM EDTAreal Flood AdvisoryCTP9 hr
Mar 30, 2:24 PM EDTAreal Flood WarningCTP3 hr
Apr 12, 1:46 AM EDTDense Fog AdvisoryCTP7 hr
Apr 14, 3:02 PM EDTFreeze WatchCTP12 hr
Apr 15, 2:47 AM EDTFreeze WarningCTP29 hr
Apr 15, 2:10 PM EDTFreeze WatchCTP24 hr
Apr 16, 1:46 PM EDTFreeze WarningCTP18 hr
Apr 17, 3:58 AM EDTFreeze WatchCTP9 hr
Apr 17, 1:09 PM EDTFrost AdvisoryCTP19 hr
Apr 20, 3:57 PM EDTFrost AdvisoryCTP16 hr
Apr 22, 1:50 PM EDTFire Weather WatchCTP14 hr
Apr 22, 5:43 PM EDTSpecial Weather StatementCTP32 min
Apr 22, 6:16 PM EDTSpecial Weather StatementCTP29 min
Apr 23, 3:39 AM EDTFire Weather WatchCTP16 hr
Apr 26, 3:59 PM EDTMesoscale DiscussionSPC2 hr
Apr 28, 11:11 AM EDTFlood WatchCTP65 hr
Apr 30, 8:39 AM EDTAreal Flood AdvisoryCTP6 hr
Apr 30, 11:07 AM EDTAreal Flood WarningCTP21 hr
May 15, 3:53 AM EDTFlash Flood WatchCTP31 hr
May 15, 5:33 PM EDTMesoscale DiscussionSPC117 min
May 15, 5:35 PM EDTSpecial Weather StatementCTP55 min
May 16, 12:15 AM EDTAreal Flood AdvisoryCTP6 hr
May 16, 6:02 AM EDTAreal Flood WarningCTP6 hr
May 16, 11:58 AM EDTAreal Flood WarningCTP5 hr
May 21, 9:14 AM EDTAreal Flood AdvisoryCTP6 hr
May 22, 1:19 PM EDTMesoscale DiscussionSPC116 min
May 27, 1:43 PM EDTMesoscale DiscussionSPC62 min
May 27, 2:13 PM EDTSevere Thunderstorm WatchSPC8 hr
May 27, 2:30 PM EDTSpecial Weather StatementCTP60 min
May 28, 8:32 PM EDTSpecial Weather StatementCTP13 min
Jun 8, 7:42 PM EDTAreal Flood AdvisoryCTP3 hr
Jun 9, 3:03 PM EDTMesoscale DiscussionSPC2 hr
Jun 11, 1:32 PM EDTMesoscale DiscussionSPC118 min
Jun 11, 2:59 PM EDTTornado WatchSPC6 hr
Jun 12, 4:18 AM EDTFlash Flood WatchCTP20 hr
Jun 12, 4:16 PM EDTAreal Flood AdvisoryCTP3 hr
Jun 13, 12:00 AM EDTAreal Flood AdvisoryCTP3 hr
Jun 13, 11:48 AM EDTFlash Flood WatchCTP10 hr
Jun 13, 12:06 PM EDTAreal Flood AdvisoryCTP3 hr
Jun 13, 12:18 PM EDTFlash Flood WarningCTP3 hr
Jun 18, 9:06 PM EDTMesoscale DiscussionSPC54 min
Jun 18, 9:37 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 18, 10:51 PM EDTSpecial Weather StatementCTP54 min
Jun 18, 11:10 PM EDTSevere Thunderstorm WarningCTP65 min
Jun 19, 12:18 AM EDTMesoscale DiscussionSPC87 min
Jun 25, 1:49 PM EDTMesoscale DiscussionSPC2 hr
Jun 25, 5:44 PM EDTMesoscale DiscussionSPC3 hr
Jun 25, 6:52 PM EDTAreal Flood AdvisoryCTP3 hr
Jun 25, 7:54 PM EDTSpecial Weather StatementCTP36 min
Jun 25, 8:41 PM EDTAreal Flood AdvisoryCTP3 hr
Jul 1, 6:32 PM EDTSpecial Weather StatementCTP28 min
Jul 2, 10:28 AM EDTMesoscale DiscussionSPC62 min
Jul 2, 11:14 AM EDTSevere Thunderstorm WatchSPC8 hr
Jul 2, 4:27 PM EDTMesoscale DiscussionSPC93 min
Jul 3, 3:10 AM EDTFlash Flood WatchCTP26 hr
Jul 3, 11:57 AM EDTMesoscale DiscussionSPC63 min
Jul 3, 12:52 PM EDTSevere Thunderstorm WatchSPC8 hr
Jul 3, 2:21 PM EDTSevere Thunderstorm WarningCTP54 min
Jul 3, 3:17 PM EDTSevere Thunderstorm WarningCTP58 min
Jul 3, 3:41 PM EDTMesoscale DiscussionSPC64 min
Jul 8, 1:04 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 8, 4:42 PM EDTMesoscale DiscussionSPC63 min
Jul 8, 5:40 PM EDTSevere Thunderstorm WarningCTP80 min
Jul 8, 6:30 PM EDTSevere Thunderstorm WarningCTP90 min
Jul 13, 4:06 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 13, 5:49 PM EDTMesoscale DiscussionSPC86 min
Jul 13, 8:10 PM EDTSevere Thunderstorm WarningCTP80 min
Jul 14, 3:42 AM EDTFlash Flood WatchCTP17 hr
Jul 14, 1:06 PM EDTMesoscale DiscussionSPC84 min
Jul 14, 1:24 PM EDTSevere Thunderstorm WatchSPC8 hr
Jul 14, 1:45 PM EDTSpecial Weather StatementCTP45 min
Jul 14, 4:25 PM EDTSpecial Weather StatementCTP35 min
Jul 14, 4:39 PM EDTMesoscale DiscussionSPC96 min
Jul 14, 5:40 PM EDTAreal Flood AdvisoryCTP3 hr
Jul 15, 1:43 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 15, 4:41 PM EDTMesoscale DiscussionSPC94 min
Jul 23, 5:13 PM EDTSevere Thunderstorm WarningCTP62 min
Jul 23, 6:34 PM EDTAreal Flood AdvisoryCTP3 hr
Jul 27, 6:09 PM EDTMesoscale DiscussionSPC66 min
Jul 27, 6:52 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 27, 9:39 PM EDTMesoscale DiscussionSPC66 min
Aug 1, 1:46 PM EDTAreal Flood AdvisoryCTP3 hr
Aug 3, 4:46 PM EDTSpecial Weather StatementCTP59 min
Aug 3, 6:22 PM EDTAreal Flood AdvisoryCTP3 hr
Aug 3, 7:14 PM EDTSpecial Weather StatementCTP46 min
Aug 5, 8:22 PM EDTSpecial Weather StatementCTP53 min
Aug 5, 9:17 PM EDTSpecial Weather StatementCTP58 min
Aug 12, 10:52 PM EDTFlash Flood WatchCTP5 hr
Aug 21, 3:30 PM EDTMesoscale DiscussionSPC2 hr
Aug 21, 3:55 PM EDTSevere Thunderstorm WarningCTP65 min
Aug 21, 6:15 PM EDTAreal Flood AdvisoryCTP3 hr
Aug 31, 1:30 PM EDTMesoscale DiscussionSPC3 hr
Sep 2, 3:37 PM EDTSpecial Weather StatementCTP68 min
Sep 2, 4:11 PM EDTMesoscale DiscussionSPC94 min
Sep 2, 4:23 PM EDTSevere Thunderstorm WarningCTP37 min
Sep 2, 4:39 PM EDTSevere Thunderstorm WatchSPC5 hr
Sep 2, 4:44 PM EDTSevere Thunderstorm WarningCTP46 min
Sep 2, 5:26 PM EDTSevere Thunderstorm WarningCTP64 min
Sep 5, 12:41 PM EDTSpecial Weather StatementCTP64 min
Sep 5, 4:28 PM EDTAreal Flood AdvisoryCTP3 hr
Sep 5, 4:41 PM EDTFlash Flood WarningCTP3 hr
Sep 6, 2:07 PM EDTSevere Thunderstorm WatchSPC7 hr
Sep 6, 4:20 PM EDTMesoscale DiscussionSPC85 min
Sep 6, 5:29 PM EDTSpecial Weather StatementCTP31 min
Sep 6, 6:58 PM EDTMesoscale DiscussionSPC92 min
Sep 26, 4:17 AM EDTDense Fog AdvisoryCTP6 hr
Sep 30, 3:23 AM EDTDense Fog AdvisoryCTP6 hr
Sep 30, 7:58 PM EDTSpecial Weather StatementCTP62 min
Sep 30, 8:50 PM EDTSpecial Weather StatementCTP55 min
Oct 1, 12:15 AM EDTDense Fog AdvisoryCTP10 hr
Oct 15, 12:45 PM EDTAreal Flood AdvisoryCTP2 hr
Oct 16, 1:28 AM EDTDense Fog AdvisoryCTP5 hr
Oct 19, 5:13 AM EDTFrost AdvisoryCTP27 hr
Oct 26, 12:47 PM EDTFrost AdvisoryCTP20 hr
Nov 2, 2:10 AM ESTFreeze WarningCTP30 hr
Nov 13, 3:59 PM ESTSpecial Weather StatementCTP61 min
Nov 24, 3:55 PM ESTWinter Storm WatchCTP23 hr
Nov 25, 2:55 PM ESTWinter Storm WarningCTP28 hr
Nov 26, 11:50 AM ESTMesoscale DiscussionSPC4 hr
Dec 1, 11:42 AM ESTWinter Weather AdvisoryCTP37 hr
Dec 2, 4:37 PM ESTSpecial Weather StatementCTP38 min
Dec 2, 5:20 PM ESTSpecial Weather StatementCTP55 min
Dec 2, 7:03 PM ESTSpecial Weather StatementCTP72 min
Dec 8, 3:43 PM ESTWinter Weather AdvisoryCTP43 hr
Dec 22, 11:11 AM ESTFreezing Rain 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 archive20132015

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.