Alert archive / Pennsylvania / Clearfield County

Weather alerts in Clearfield County, Pennsylvania, 2010

179 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Clearfield County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts
179
Warnings
39
Watches
25
Advisories
33
Busiest month
June33 alerts
Busiest day
July 21, 20108 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 2 tornado warnings covering Clearfield County in 2010 had a tornado report inside them.

Clearfield County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings20100%0
Severe thunderstorm warnings231439%11100%32 min
Flash flood warnings00

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS State College, PA: tornado warnings17288%650%25 min
NWS State College, PA: severe thunderstorm warnings21313138%31985%27 min
NWS State College, PA: flash flood warnings22959%2471%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 1, 12:10 PM ESTWinter Weather AdvisoryCTP3 days
Jan 1, 6:18 PM ESTSpecial Weather StatementCTP57 min
Jan 2, 4:25 AM ESTSpecial Weather StatementCTP80 min
Jan 2, 5:43 AM ESTSpecial Weather StatementCTP32 min
Jan 2, 6:50 AM ESTSpecial Weather StatementCTP40 min
Jan 2, 8:51 PM ESTWind Chill AdvisoryCTP14 hr
Jan 4, 6:22 AM ESTSpecial Weather StatementCTP113 min
Jan 7, 4:26 AM ESTWinter Weather AdvisoryCTP54 hr
Jan 8, 9:38 AM ESTSpecial Weather StatementCTP37 min
Jan 16, 2:48 PM ESTFreezing Rain AdvisoryCTP14 hr
Jan 16, 7:24 PM ESTWinter Weather AdvisoryCTP32 hr
Jan 21, 1:48 PM ESTWinter Weather AdvisoryCTP22 hr
Jan 23, 2:56 PM ESTFlood WatchCTP48 hr
Jan 25, 2:24 AM ESTAreal Flood WarningCTP10 hr
Jan 25, 5:38 AM ESTAreal Flood WarningCTP24 hr
Jan 25, 12:17 PM ESTAreal Flood WarningCTP14 hr
Jan 26, 12:56 AM ESTSpecial Weather StatementCTP64 min
Jan 26, 1:53 AM ESTSpecial Weather StatementCTP52 min
Jan 28, 10:07 AM ESTWinter Weather AdvisoryCTP6 hr
Feb 4, 3:09 PM ESTWinter Storm WatchCTP13 hr
Feb 4, 3:09 PM ESTWinter Storm WarningCTP46 hr
Feb 5, 3:40 AM ESTWinter Weather AdvisoryCTP30 hr
Feb 7, 9:31 PM ESTWinter Storm WatchCTP30 hr
Feb 8, 3:56 PM ESTWinter Storm WarningCTP54 hr
Feb 15, 4:05 AM ESTWinter Weather AdvisoryCTP31 hr
Feb 15, 1:41 PM ESTMesoscale DiscussionSPC5 hr
Feb 17, 5:37 AM ESTWinter Weather AdvisoryCTP39 hr
Feb 22, 7:15 PM ESTWinter Weather AdvisoryCTP14 hr
Feb 24, 3:15 PM ESTWinter Weather AdvisoryCTP48 hr
Mar 10, 4:24 AM ESTFlood WatchCTP4 days
Mar 13, 10:09 AM ESTWind AdvisoryCTP12 hr
Mar 13, 4:51 PM ESTAreal Flood AdvisoryCTP7 hr
Mar 13, 7:35 PM ESTAreal Flood WarningCTP5 hr
Mar 14, 1:03 PM EDTAreal Flood AdvisoryCTP6 hr
Mar 22, 6:53 PM EDTMesoscale DiscussionSPC3 hr
Apr 3, 3:33 AM EDTFire Weather WatchCTP11 hr
Apr 3, 2:50 PM EDTRed Flag WarningCTP5 hr
Apr 6, 5:20 AM EDTMesoscale DiscussionSPC85 min
Apr 7, 3:43 AM EDTRed Flag WarningCTP15 hr
Apr 8, 3:25 PM EDTSpecial Weather StatementCTP35 min
Apr 8, 4:29 PM EDTSpecial Weather StatementCTP31 min
Apr 8, 4:56 PM EDTSevere Thunderstorm WarningCTP34 min
Apr 16, 12:44 PM EDTMesoscale DiscussionSPC2 hr
Apr 16, 1:28 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 16, 3:35 PM EDTSpecial Weather StatementCTP85 min
Apr 16, 3:47 PM EDTSevere Thunderstorm WarningCTP58 min
Apr 16, 4:28 PM EDTSevere Thunderstorm WarningCTP62 min
Apr 16, 4:34 PM EDTMesoscale DiscussionSPC86 min
Apr 16, 6:14 PM EDTMesoscale DiscussionSPC61 min
Apr 25, 2:26 PM EDTMesoscale DiscussionSPC94 min
Apr 25, 4:37 PM EDTSevere Thunderstorm WatchSPC6 hr
Apr 25, 6:16 PM EDTMesoscale DiscussionSPC89 min
Apr 28, 2:36 PM EDTFire Weather WatchCTP15 hr
Apr 29, 5:22 AM EDTRed Flag WarningCTP15 hr
May 4, 10:53 AM EDTMesoscale DiscussionSPC97 min
May 4, 1:04 PM EDTSpecial Weather StatementCTP26 min
May 6, 2:59 AM EDTSpecial Weather StatementCTP46 min
May 6, 4:04 AM EDTSpecial Weather StatementCTP41 min
May 7, 3:41 PM EDTWind AdvisoryCTP31 hr
May 7, 9:31 PM EDTSevere Thunderstorm WatchSPC5 hr
May 7, 11:42 PM EDTMesoscale DiscussionSPC63 min
May 8, 1:54 AM EDTSpecial Weather StatementCTP36 min
May 8, 2:36 AM EDTMesoscale DiscussionSPC54 min
May 8, 2:40 AM EDTSevere Thunderstorm WarningCTP35 min
May 8, 2:24 PM EDTFreeze WatchCTP14 hr
May 9, 4:11 AM EDTFreeze WarningCTP28 hr
May 14, 5:47 AM EDTSpecial Weather StatementCTP28 min
May 14, 6:04 AM EDTSevere Thunderstorm WarningCTP41 min
May 28, 12:23 PM EDTSpecial Weather StatementCTP37 min
May 28, 12:56 PM EDTSpecial Weather StatementCTP34 min
May 28, 1:04 PM EDTSevere Thunderstorm WarningCTP41 min
May 28, 1:14 PM EDTAreal Flood AdvisoryCTP3 hr
May 28, 3:22 PM EDTAreal Flood AdvisoryCTP3 hr
May 31, 1:14 PM EDTFlash Flood WatchCTP14 hr
May 31, 4:42 PM EDTSevere Thunderstorm WarningCTP63 min
May 31, 5:54 PM EDTSevere Thunderstorm WarningCTP66 min
Jun 3, 12:10 AM EDTSpecial Weather StatementCTP20 min
Jun 3, 12:32 AM EDTSpecial Weather StatementCTP43 min
Jun 3, 1:21 AM EDTSpecial Weather StatementCTP24 min
Jun 3, 10:13 PM EDTSpecial Weather StatementCTP62 min
Jun 4, 2:39 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 4, 4:53 PM EDTSpecial Weather StatementCTP22 min
Jun 4, 7:03 PM EDTMesoscale DiscussionSPC57 min
Jun 5, 4:30 AM EDTFlash Flood WatchCTP31 hr
Jun 5, 5:24 PM EDTAreal Flood AdvisoryCTP107 min
Jun 6, 2:03 AM EDTTornado WatchSPC7 hr
Jun 6, 3:38 AM EDTMesoscale DiscussionSPC2 hr
Jun 6, 7:05 AM EDTMesoscale DiscussionSPC115 min
Jun 6, 7:51 AM EDTTornado WatchSPC7 hr
Jun 6, 8:50 AM EDTSpecial Weather StatementCTP55 min
Jun 6, 9:23 AM EDTSevere Thunderstorm WarningCTP67 min
Jun 6, 9:34 AM EDTSevere Thunderstorm WarningCTP86 min
Jun 10, 12:26 AM EDTDense Fog AdvisoryCTP7 hr
Jun 16, 5:54 AM EDTSpecial Weather StatementCTP51 min
Jun 16, 6:45 AM EDTSpecial Weather StatementCTP60 min
Jun 16, 1:39 PM EDTMesoscale DiscussionSPC96 min
Jun 19, 6:04 PM EDTMesoscale DiscussionSPC56 min
Jun 22, 8:42 AM EDTSpecial Weather StatementCTP48 min
Jun 22, 9:30 AM EDTSpecial Weather StatementCTP30 min
Jun 22, 11:35 AM EDTMesoscale DiscussionSPC25 min
Jun 22, 3:48 PM EDTMesoscale DiscussionSPC27 min
Jun 23, 6:35 PM EDTSpecial Weather StatementCTP70 min
Jun 23, 6:38 PM EDTMesoscale DiscussionSPC97 min
Jun 23, 6:45 PM EDTSevere Thunderstorm WarningCTP60 min
Jun 23, 6:46 PM EDTSevere Thunderstorm WatchSPC2 hr
Jun 24, 9:38 AM EDTMesoscale DiscussionSPC97 min
Jun 24, 10:10 AM EDTSpecial Weather StatementCTP50 min
Jun 24, 10:19 AM EDTSevere Thunderstorm WatchSPC8 hr
Jun 24, 12:16 PM EDTMesoscale DiscussionSPC89 min
Jul 9, 3:53 PM EDTAreal Flood AdvisoryCTP3 hr
Jul 9, 3:54 PM EDTFlash Flood WatchCTP8 hr
Jul 9, 4:21 PM EDTMesoscale DiscussionSPC114 min
Jul 17, 9:37 PM EDTSpecial Weather StatementCTP23 min
Jul 17, 9:46 PM EDTSevere Thunderstorm WarningCTP44 min
Jul 17, 10:29 PM EDTSevere Thunderstorm WarningCTP57 min
Jul 21, 11:27 AM EDTSevere Thunderstorm WatchSPC9 hr
Jul 21, 1:59 PM EDTMesoscale DiscussionSPC61 min
Jul 21, 3:41 PM EDTMesoscale DiscussionSPC64 min
Jul 21, 4:03 PM EDTSevere Thunderstorm WarningCTP57 min
Jul 21, 6:08 PM EDTSevere Thunderstorm WarningCTP52 min
Jul 21, 6:47 PM EDTTornado WarningCTP28 min
Jul 21, 7:00 PM EDTMesoscale DiscussionSPC90 min
Jul 21, 7:35 PM EDTSevere Thunderstorm WatchSPC5 hr
Jul 23, 12:46 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 23, 3:27 PM EDTSevere Thunderstorm WarningCTP63 min
Jul 23, 4:03 PM EDTSevere Thunderstorm WarningCTP57 min
Jul 23, 5:18 PM EDTSevere Thunderstorm WarningCTP57 min
Jul 23, 6:15 PM EDTSevere Thunderstorm WarningCTP30 min
Jul 23, 6:23 PM EDTMesoscale DiscussionSPC67 min
Jul 23, 9:06 PM EDTMesoscale DiscussionSPC54 min
Jul 23, 10:45 PM EDTMesoscale DiscussionSPC90 min
Jul 24, 6:48 PM EDTTornado WatchSPC4 hr
Jul 24, 8:14 PM EDTSevere Thunderstorm WarningCTP76 min
Jul 24, 9:07 PM EDTSpecial Weather StatementCTP23 min
Jul 24, 9:45 PM EDTSevere Thunderstorm WarningCTP29 min
Jul 24, 10:10 PM EDTSpecial Weather StatementCTP35 min
Jul 25, 10:48 AM EDTMesoscale DiscussionSPC27 min
Jul 29, 6:50 AM EDTSpecial Weather StatementCTP40 min
Aug 4, 5:41 PM EDTSpecial Weather StatementCTP34 min
Aug 4, 6:18 PM EDTSpecial Weather StatementCTP57 min
Aug 16, 4:21 AM EDTSpecial Weather StatementCTP54 min
Aug 16, 5:09 AM EDTMesoscale DiscussionSPC2 hr
Sep 3, 4:52 PM EDTSpecial Weather StatementCTP83 min
Sep 22, 1:26 PM EDTMesoscale DiscussionSPC94 min
Sep 22, 2:24 PM EDTSevere Thunderstorm WarningCTP66 min
Sep 22, 2:34 PM EDTSevere Thunderstorm WatchSPC6 hr
Sep 22, 3:00 PM EDTTornado WarningCTP30 min
Sep 22, 3:17 PM EDTSevere Thunderstorm WarningCTP58 min
Sep 23, 3:45 AM EDTDense Fog AdvisoryCTP2 hr
Sep 28, 6:44 AM EDTSpecial Weather StatementCTP46 min
Sep 30, 11:38 AM EDTAreal Flood AdvisoryCTP16 hr
Sep 30, 3:30 PM EDTAreal Flood WarningCTP4 hr
Oct 11, 3:19 PM EDTMesoscale DiscussionSPC56 min
Oct 11, 7:58 PM EDTSpecial Weather StatementCTP47 min
Oct 12, 4:10 AM EDTFrost AdvisoryCTP28 hr
Oct 26, 1:36 PM EDTTornado WatchSPC7 hr
Oct 26, 6:09 PM EDTSpecial Weather StatementCTP66 min
Oct 26, 6:59 PM EDTSpecial Weather StatementCTP46 min
Nov 16, 2:25 PM ESTWind AdvisoryCTP28 hr
Nov 16, 9:38 PM ESTSpecial Weather StatementCTP52 min
Nov 24, 3:10 PM ESTWinter Weather AdvisoryCTP31 hr
Nov 25, 5:02 AM ESTMesoscale DiscussionSPC4 hr
Nov 29, 1:23 PM ESTFlood WatchCTP49 hr
Nov 30, 8:54 PM ESTAreal Flood AdvisoryCTP8 hr
Nov 30, 11:36 PM ESTAreal Flood WarningCTP6 hr
Dec 1, 4:52 AM ESTAreal Flood WarningCTP6 hr
Dec 1, 8:47 AM ESTAreal Flood WarningCTP6 hr
Dec 1, 9:52 AM ESTWinter Weather AdvisoryCTP10 hr
Dec 3, 4:17 PM ESTSpecial Weather StatementCTP28 min
Dec 5, 2:16 PM ESTWinter Weather AdvisoryCTP53 hr
Dec 6, 2:23 AM ESTSpecial Weather StatementCTP3 hr
Dec 8, 11:21 PM ESTSpecial Weather StatementCTP24 min
Dec 9, 12:27 AM ESTSpecial Weather StatementCTP48 min
Dec 11, 10:40 PM ESTFreezing Rain AdvisoryCTP10 hr
Dec 14, 4:14 AM ESTWinter Weather AdvisoryCTP15 hr
Dec 14, 2:52 PM ESTSpecial Weather StatementCTP23 min
Dec 14, 7:14 PM ESTWinter Weather AdvisoryCTP20 hr
Dec 30, 6:45 AM ESTFreezing Rain AdvisoryCTP6 hr
Dec 30, 9:42 PM ESTSpecial Weather StatementCTP3 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 archive20092011

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.