Alert archive / Pennsylvania / Lancaster County

Weather alerts in Lancaster County, Pennsylvania, 2011

277 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Lancaster County and its neighbors

Each county as a circle sized by its count in 2011. Tap one for its archive.

Alerts
277
Warnings
85
Watches
42
Advisories
48
Busiest month
April47 alerts
Busiest day
April 28, 201116 alerts

Over time

By month

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 7, 2:33 PM ESTWinter Weather AdvisoryCTP37 hr
Jan 10, 3:14 PM ESTWinter Weather AdvisoryCTP3 days
Jan 17, 6:03 AM ESTWinter Weather AdvisoryCTP33 hr
Jan 18, 12:29 AM ESTMesoscale DiscussionSPC6 hr
Jan 18, 8:34 PM ESTWinter Weather AdvisoryCTP11 hr
Jan 20, 4:13 AM ESTWinter Weather AdvisoryCTP40 hr
Jan 25, 2:24 PM ESTWinter Storm WatchCTP13 hr
Jan 26, 2:59 AM ESTWinter Storm WarningCTP21 hr
Jan 26, 2:19 PM ESTMesoscale DiscussionSPC6 hr
Jan 26, 6:41 PM ESTSpecial Weather StatementCTP64 min
Jan 30, 7:18 PM ESTWinter Storm WatchCTP20 hr
Jan 31, 3:07 PM ESTWinter Storm WarningCTP40 hr
Feb 1, 8:39 PM ESTMesoscale DiscussionSPC6 hr
Feb 4, 2:47 PM ESTWinter Weather AdvisoryCTP32 hr
Feb 5, 6:26 PM ESTSpecial Weather StatementCTP79 min
Feb 8, 4:24 AM ESTWind AdvisoryCTP15 hr
Feb 13, 3:14 PM ESTWind AdvisoryCTP30 hr
Feb 18, 11:00 AM ESTHigh Wind WatchCTP10 hr
Feb 18, 9:18 PM ESTHigh Wind WarningCTP24 hr
Feb 20, 4:29 AM ESTWinter Weather AdvisoryCTP30 hr
Feb 21, 1:22 PM ESTWinter Weather AdvisoryCTP17 hr
Feb 21, 5:58 PM ESTMesoscale DiscussionSPC4 hr
Feb 24, 3:00 AM ESTFlood WatchCTP30 hr
Feb 24, 3:16 AM ESTHigh Wind WatchCTP19 hr
Feb 24, 10:06 PM ESTHigh Wind WarningCTP20 hr
Feb 27, 1:59 PM ESTFlood WatchCTP22 hr
Mar 4, 3:33 AM ESTFlood WatchCTP3 days
Mar 6, 2:50 PM ESTAreal Flood AdvisoryCTP4 hr
Mar 6, 3:06 PM ESTAreal Flood AdvisoryCTP4 hr
Mar 6, 8:00 PM ESTAreal Flood AdvisoryCTP6 hr
Mar 8, 4:25 AM ESTFlood WatchCTP66 hr
Mar 10, 4:45 AM ESTRiver Flood WarningCTP24 hr
Mar 10, 10:09 AM ESTAreal Flood AdvisoryCTP3 hr
Mar 10, 11:35 AM ESTRiver Flood WarningCTP3 days
Mar 10, 11:35 AM ESTRiver Flood WarningCTP4 days
Mar 10, 1:09 PM ESTAreal Flood AdvisoryCTP6 hr
Mar 10, 5:11 PM ESTAreal Flood WarningCTP12 hr
Mar 10, 7:55 PM ESTSpecial Weather StatementCTP65 min
Mar 11, 4:52 AM ESTAreal Flood WarningCTP8 hr
Apr 5, 4:53 AM EDTSpecial Weather StatementCTP22 min
Apr 5, 5:03 AM EDTMesoscale DiscussionSPC27 min
Apr 5, 5:27 AM EDTAreal Flood AdvisoryCTP3 hr
Apr 5, 5:29 AM EDTSpecial Weather StatementCTP31 min
Apr 11, 6:43 PM EDTMesoscale DiscussionSPC62 min
Apr 11, 7:46 PM EDTSpecial Weather StatementCTP59 min
Apr 15, 12:54 PM EDTFlash Flood WatchCTP33 hr
Apr 15, 1:56 PM EDTWind AdvisoryCTP32 hr
Apr 16, 2:05 PM EDTMesoscale DiscussionSPC55 min
Apr 16, 4:01 PM EDTSevere Thunderstorm WarningCTP59 min
Apr 16, 4:29 PM EDTMesoscale DiscussionSPC31 min
Apr 16, 4:39 PM EDTAreal Flood WarningCTP20 hr
Apr 16, 4:41 PM EDTTornado WatchSPC6 hr
Apr 16, 5:38 PM EDTFlash Flood WarningCTP7 hr
Apr 16, 6:38 PM EDTMesoscale DiscussionSPC97 min
Apr 16, 6:46 PM EDTSpecial Weather StatementCTP29 min
Apr 16, 7:47 PM EDTSevere Thunderstorm WarningCTP43 min
Apr 16, 8:25 PM EDTSevere Thunderstorm WarningCTP65 min
Apr 16, 8:29 PM EDTTornado WarningCTP31 min
Apr 16, 9:40 PM EDTWind AdvisoryCTP22 hr
Apr 17, 12:28 PM EDTRiver Flood WarningCTP19 hr
Apr 17, 11:29 PM EDTSpecial Weather StatementCTP3 hr
Apr 20, 3:45 PM EDTMesoscale DiscussionSPC30 min
Apr 20, 4:03 PM EDTSevere Thunderstorm WatchSPC4 hr
Apr 21, 2:59 PM EDTFrost AdvisoryCTP17 hr
Apr 24, 2:12 PM EDTMesoscale DiscussionSPC93 min
Apr 24, 3:40 PM EDTSevere Thunderstorm WatchSPC5 hr
Apr 24, 6:10 PM EDTMesoscale DiscussionSPC65 min
Apr 24, 6:20 PM EDTSpecial Weather StatementCTP25 min
Apr 27, 3:10 PM EDTTornado WatchSPC7 hr
Apr 27, 6:50 PM EDTMesoscale DiscussionSPC55 min
Apr 27, 11:50 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 28, 2:20 AM EDTMesoscale DiscussionSPC55 min
Apr 28, 3:32 AM EDTMesoscale DiscussionSPC28 min
Apr 28, 3:46 AM EDTSevere Thunderstorm WarningCTP44 min
Apr 28, 4:28 AM EDTSevere Thunderstorm WarningCTP47 min
Apr 28, 8:17 AM EDTSevere Thunderstorm WarningCTP58 min
Apr 28, 8:44 AM EDTTornado WarningCTP14 min
Apr 28, 8:54 AM EDTSevere Thunderstorm WarningCTP66 min
Apr 28, 9:30 AM EDTTornado WarningCTP15 min
Apr 28, 10:03 AM EDTSevere Thunderstorm WarningCTP27 min
Apr 28, 10:13 AM EDTTornado WarningCTP32 min
Apr 28, 10:26 AM EDTRiver Flood WarningCTP48 hr
Apr 28, 10:26 AM EDTRiver Flood WarningCTP63 hr
Apr 28, 10:35 AM EDTSevere Thunderstorm WarningCTP10 min
Apr 28, 10:49 AM EDTSpecial Weather StatementCTP26 min
Apr 28, 11:15 AM EDTSpecial Weather StatementCTP15 min
May 3, 2:27 PM EDTMesoscale DiscussionSPC2 hr
May 3, 3:47 PM EDTSevere Thunderstorm WatchSPC6 hr
May 3, 6:51 PM EDTMesoscale DiscussionSPC84 min
May 6, 7:15 PM EDTSpecial Weather StatementCTP60 min
May 6, 8:15 PM EDTSpecial Weather StatementCTP60 min
May 15, 2:23 PM EDTSpecial Weather StatementCTP52 min
May 15, 6:53 PM EDTSpecial Weather StatementCTP52 min
May 15, 7:04 PM EDTSevere Thunderstorm WarningCTP26 min
May 16, 5:56 PM EDTAreal Flood AdvisoryCTP3 hr
May 16, 6:09 PM EDTFlash Flood WarningCTP2 hr
May 17, 11:13 AM EDTFlood WatchCTP33 hr
May 17, 6:27 PM EDTMesoscale DiscussionSPC2 hr
May 18, 3:08 PM EDTMesoscale DiscussionSPC67 min
May 18, 4:31 PM EDTFlash Flood WarningCTP4 hr
May 19, 2:08 AM EDTSpecial Weather StatementCTP37 min
May 19, 11:41 AM EDTAreal Flood AdvisoryCTP3 hr
May 19, 12:20 PM EDTSevere Thunderstorm WatchSPC8 hr
May 19, 2:17 PM EDTMesoscale DiscussionSPC58 min
May 19, 5:02 PM EDTMesoscale DiscussionSPC58 min
May 23, 10:48 AM EDTSevere Thunderstorm WatchSPC9 hr
May 23, 4:40 PM EDTMesoscale DiscussionSPC95 min
May 23, 5:00 PM EDTSpecial Weather StatementCTP30 min
May 23, 6:08 PM EDTSpecial Weather StatementCTP37 min
May 23, 6:16 PM EDTSpecial Weather StatementCTP44 min
May 23, 6:27 PM EDTSevere Thunderstorm WarningCTP34 min
May 26, 2:53 PM EDTTornado WatchSPC7 hr
May 26, 5:49 PM EDTMesoscale DiscussionSPC56 min
May 26, 7:34 PM EDTSevere Thunderstorm WarningCTP56 min
May 26, 8:29 PM EDTSpecial Weather StatementCTP46 min
May 26, 8:54 PM EDTMesoscale DiscussionSPC66 min
May 27, 12:24 PM EDTMesoscale DiscussionSPC96 min
May 27, 12:57 PM EDTSevere Thunderstorm WatchSPC9 hr
May 27, 6:14 PM EDTMesoscale DiscussionSPC2 hr
Jun 1, 10:02 AM EDTSevere Thunderstorm WatchSPC7 hr
Jun 1, 1:42 PM EDTSevere Thunderstorm WarningCTP63 min
Jun 1, 3:30 PM EDTSpecial Weather StatementCTP45 min
Jun 1, 3:41 PM EDTSevere Thunderstorm WarningCTP34 min
Jun 5, 8:42 PM EDTSevere Thunderstorm WarningCTP93 min
Jun 8, 10:21 AM EDTHeat AdvisoryCTP10 hr
Jun 9, 12:47 AM EDTHeat AdvisoryCTP18 hr
Jun 9, 12:53 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 9, 1:45 PM EDTMesoscale DiscussionSPC90 min
Jun 9, 5:53 PM EDTSevere Thunderstorm WarningCTP112 min
Jun 9, 7:17 PM EDTMesoscale DiscussionSPC58 min
Jun 10, 5:28 PM EDTMesoscale DiscussionSPC92 min
Jun 11, 3:31 AM EDTAreal Flood AdvisoryCTP3 hr
Jun 11, 5:46 AM EDTSpecial Weather StatementCTP44 min
Jun 11, 10:46 AM EDTFlash Flood WatchCTP13 hr
Jun 11, 7:42 PM EDTSevere Thunderstorm WarningCTP63 min
Jun 11, 7:42 PM EDTTornado WarningCTP48 min
Jun 11, 7:49 PM EDTTornado WarningCTP41 min
Jun 11, 7:52 PM EDTSevere Thunderstorm WarningCTP68 min
Jun 11, 7:53 PM EDTFlash Flood WarningCTP3 hr
Jun 11, 7:56 PM EDTTornado WarningCTP49 min
Jun 11, 8:22 PM EDTSevere Thunderstorm WarningCTP53 min
Jun 11, 8:41 PM EDTSevere Thunderstorm WarningCTP79 min
Jun 11, 10:01 PM EDTSpecial Weather StatementCTP59 min
Jun 12, 1:48 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 12, 2:06 PM EDTSevere Thunderstorm WarningCTP54 min
Jun 12, 2:49 PM EDTTornado WarningCTP26 min
Jun 12, 2:50 PM EDTAreal Flood AdvisoryCTP3 hr
Jun 12, 2:56 PM EDTSevere Thunderstorm WarningCTP79 min
Jun 12, 3:16 PM EDTTornado WarningCTP44 min
Jun 16, 6:01 PM EDTMesoscale DiscussionSPC89 min
Jun 21, 3:31 AM EDTAreal Flood AdvisoryCTP89 min
Jun 22, 12:57 AM EDTSpecial Weather StatementCTP48 min
Jun 22, 1:48 AM EDTSpecial Weather StatementCTP27 min
Jun 22, 2:19 AM EDTSpecial Weather StatementCTP26 min
Jun 22, 1:27 PM EDTSpecial Weather StatementCTP33 min
Jun 22, 2:03 PM EDTMesoscale DiscussionSPC117 min
Jun 24, 11:42 AM EDTMesoscale DiscussionSPC3 hr
Jul 3, 2:22 AM EDTAreal Flood AdvisoryCTP3 hr
Jul 6, 1:56 PM EDTSpecial Weather StatementCTP34 min
Jul 7, 4:02 PM EDTAreal Flood AdvisoryCTP3 hr
Jul 7, 4:03 PM EDTSpecial Weather StatementCTP27 min
Jul 7, 4:35 PM EDTSpecial Weather StatementCTP25 min
Jul 7, 4:42 PM EDTAreal Flood AdvisoryCTP3 hr
Jul 8, 11:40 AM EDTFlash Flood WatchCTP7 hr
Jul 8, 11:44 AM EDTMesoscale DiscussionSPC61 min
Jul 8, 1:51 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 8, 3:23 PM EDTSpecial Weather StatementCTP52 min
Jul 8, 5:52 PM EDTMesoscale DiscussionSPC83 min
Jul 11, 7:44 PM EDTMesoscale DiscussionSPC61 min
Jul 11, 8:51 PM EDTSpecial Weather StatementCTP39 min
Jul 18, 6:21 PM EDTSevere Thunderstorm WarningCTP42 min
Jul 19, 3:35 PM EDTExcessive Heat WatchCTP22 hr
Jul 19, 7:42 PM EDTSpecial Weather StatementCTP18 min
Jul 19, 8:01 PM EDTSpecial Weather StatementCTP14 min
Jul 20, 3:59 AM EDTExcessive Heat WatchCTP10 hr
Jul 20, 1:43 PM EDTExcessive Heat WarningCTP30 hr
Jul 20, 1:43 PM EDTExcessive Heat WarningCTP54 hr
Jul 22, 4:08 AM EDTHeat AdvisoryCTP40 hr
Jul 22, 4:02 PM EDTSevere Thunderstorm WarningCTP58 min
Jul 22, 4:34 PM EDTSevere Thunderstorm WarningCTP36 min
Jul 23, 6:30 PM EDTSevere Thunderstorm WarningCTP46 min
Jul 25, 12:39 PM EDTAreal Flood AdvisoryCTP3 hr
Jul 25, 1:12 PM EDTSevere Thunderstorm WarningCTP31 min
Jul 25, 1:12 PM EDTMesoscale DiscussionSPC2 hr
Jul 25, 5:42 PM EDTMesoscale DiscussionSPC63 min
Jul 28, 1:23 PM EDTHeat AdvisoryCTP31 hr
Jul 29, 2:40 PM EDTSevere Thunderstorm WatchSPC8 hr
Jul 29, 4:40 PM EDTMesoscale DiscussionSPC95 min
Jul 31, 9:43 PM EDTSpecial Weather StatementCTP62 min
Aug 1, 3:22 PM EDTMesoscale DiscussionSPC83 min
Aug 1, 4:20 PM EDTSevere Thunderstorm WarningCTP25 min
Aug 1, 6:20 PM EDTSevere Thunderstorm WarningCTP55 min
Aug 9, 3:05 PM EDTMesoscale DiscussionSPC55 min
Aug 9, 3:54 PM EDTSpecial Weather StatementCTP66 min
Aug 9, 4:16 PM EDTSevere Thunderstorm WatchSPC5 hr
Aug 9, 4:57 PM EDTSpecial Weather StatementCTP48 min
Aug 13, 2:07 PM EDTMesoscale DiscussionSPC113 min
Aug 13, 3:58 PM EDTAreal Flood AdvisoryCTP3 hr
Aug 18, 3:52 AM EDTSpecial Weather StatementCTP53 min
Aug 18, 5:11 PM EDTSpecial Weather StatementCTP49 min
Aug 18, 6:24 PM EDTSpecial Weather StatementCTP21 min
Aug 18, 6:56 PM EDTSpecial Weather StatementCTP19 min
Aug 19, 12:43 PM EDTMesoscale DiscussionSPC62 min
Aug 19, 1:04 PM EDTSevere Thunderstorm WatchSPC8 hr
Aug 19, 4:14 PM EDTSevere Thunderstorm WarningCTP61 min
Aug 19, 4:48 PM EDTSevere Thunderstorm WarningCTP72 min
Aug 19, 5:26 PM EDTSevere Thunderstorm WarningCTP34 min
Aug 20, 4:15 AM EDTDense Fog AdvisoryCTP7 hr
Aug 21, 11:54 AM EDTMesoscale DiscussionSPC2 hr
Aug 21, 12:52 PM EDTSevere Thunderstorm WatchSPC8 hr
Aug 21, 2:35 PM EDTSpecial Weather StatementCTP70 min
Aug 21, 3:25 PM EDTSpecial Weather StatementCTP50 min
Aug 21, 3:28 PM EDTSevere Thunderstorm WarningCTP62 min
Aug 21, 4:29 PM EDTSevere Thunderstorm WarningCTP44 min
Aug 21, 7:12 PM EDTMesoscale DiscussionSPC63 min
Aug 25, 7:09 AM EDTSpecial Weather StatementCTP36 min
Aug 26, 5:34 AM EDTFlash Flood WatchCTP54 hr
Aug 27, 4:15 AM EDTWind AdvisoryCTP37 hr
Aug 27, 11:23 AM EDTRiver Flood WarningCTP37 hr
Aug 28, 2:37 AM EDTAreal Flood WarningCTP8 hr
Aug 28, 9:20 AM EDTAreal Flood AdvisoryCTP3 hr
Aug 28, 12:39 PM EDTAreal Flood WarningCTP5 hr
Sep 3, 8:44 AM EDTSpecial Weather StatementCTP61 min
Sep 4, 10:31 PM EDTSevere Thunderstorm WarningCTP44 min
Sep 4, 11:29 PM EDTFlash Flood WatchCTP21 hr
Sep 4, 11:44 PM EDTFlash Flood WarningCTP3 hr
Sep 5, 6:16 PM EDTSpecial Weather StatementCTP29 min
Sep 5, 9:07 PM EDTFlood WatchCTP71 hr
Sep 5, 11:42 PM EDTAreal Flood AdvisoryCTP3 hr
Sep 7, 9:33 AM EDTFlash Flood Warning EmergencyCTP10 hr
Sep 7, 11:22 AM EDTRiver Flood WarningCTP4 days
Sep 7, 11:22 AM EDTRiver Flood WarningCTP4 days
Sep 7, 12:09 PM EDTAreal Flood WarningCTP12 hr
Sep 7, 2:17 PM EDTSpecial Weather StatementCTP13 min
Sep 7, 2:56 PM EDTSpecial Weather StatementCTP34 min
Sep 7, 3:28 PM EDTRiver Flood WarningCTP44 hr
Sep 7, 7:00 PM EDTFlash Flood Warning EmergencyCTP6 hr
Sep 8, 12:59 AM EDTAreal Flood WarningCTP8 hr
Sep 8, 5:19 AM EDTSpecial Weather StatementCTP26 min
Sep 8, 5:57 AM EDTSpecial Weather StatementCTP63 min
Sep 8, 7:02 AM EDTSpecial Weather StatementCTP58 min
Sep 8, 7:53 AM EDTSpecial Weather StatementCTP52 min
Sep 8, 9:22 AM EDTAreal Flood WarningCTP24 hr
Sep 9, 9:18 AM EDTAreal Flood WarningCTP8 hr
Sep 11, 5:53 PM EDTSevere Thunderstorm WarningCTP67 min
Sep 11, 6:38 PM EDTMesoscale DiscussionSPC97 min
Sep 11, 8:30 PM EDTSpecial Weather StatementCTP30 min
Sep 11, 9:10 PM EDTAreal Flood AdvisoryCTP65 min
Sep 11, 9:21 PM EDTFlash Flood WarningCTP3 hr
Sep 12, 12:29 AM EDTDense Fog AdvisoryCTP10 hr
Sep 14, 3:22 PM EDTMesoscale DiscussionSPC53 min
Sep 14, 7:45 PM EDTSpecial Weather StatementCTP45 min
Sep 23, 1:15 AM EDTDense Fog AdvisoryCTP9 hr
Sep 23, 9:53 AM EDTFlash Flood WatchCTP16 hr
Sep 23, 11:39 AM EDTAreal Flood AdvisoryCTP6 hr
Sep 23, 6:16 PM EDTFlash Flood WarningCTP3 hr
Sep 27, 9:12 AM EDTFlash Flood WatchCTP40 hr
Sep 28, 2:06 PM EDTAreal Flood AdvisoryCTP3 hr
Sep 28, 2:55 PM EDTFlash Flood WarningCTP3 hr
Sep 28, 4:12 PM EDTFlash Flood WarningCTP3 hr
Sep 28, 4:45 PM EDTMesoscale DiscussionSPC60 min
Sep 28, 9:26 PM EDTAreal Flood WarningCTP6 hr
Oct 6, 1:09 PM EDTFrost AdvisoryCTP19 hr
Oct 14, 11:24 AM EDTSpecial Weather StatementCTP36 min
Oct 26, 3:41 PM EDTFreeze WatchCTP11 hr
Oct 27, 3:04 AM EDTFreeze WarningCTP31 hr
Oct 28, 2:12 AM EDTWinter Storm WatchCTP11 hr
Oct 28, 1:08 PM EDTWinter Storm WarningCTP33 hr
Oct 31, 5:26 AM EDTDense Fog AdvisoryCTP4 hr
Nov 10, 9:35 AM ESTDense Fog AdvisoryCTP2 hr
Nov 22, 2:47 PM ESTFlash Flood WatchCTP13 hr
Nov 23, 12:04 AM ESTAreal Flood AdvisoryCTP6 hr
Nov 23, 6:03 AM ESTAreal Flood AdvisoryCTP117 min
Nov 23, 7:37 AM ESTAreal Flood WarningCTP3 hr
Nov 30, 10:00 AM ESTFlash Flood WatchCTP27 hr
Dec 7, 4:18 AM ESTFlood WatchCTP20 hr
Dec 7, 4:51 AM ESTWinter Weather 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 archive20102012

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. Rebuilt daily.