Alert archive / Pennsylvania / Crawford County

Weather alerts in Crawford County, Pennsylvania, 2017

117 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Crawford County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts
117
Warnings
32
Watches
13
Advisories
26
Busiest month
May18 alerts
Busiest day
June 18, 20179 alerts

Over time

By month

Warning verification

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

Crawford County, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings201810%2696%31 min
Flash flood warnings2150%1100%62 min

Each office's whole area, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Cleveland, OH: tornado warnings15567%2450%10 min
NWS Cleveland, OH: severe thunderstorm warnings14810728%28176%22 min
NWS Cleveland, OH: flash flood warnings17853%16100%50 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 4, 2:32 AM ESTLake Effect Snow AdvisoryCLE3 days
Jan 7, 12:16 PM ESTLake Effect Snow AdvisoryCLE28 hr
Jan 9, 12:52 PM ESTWinter Weather AdvisoryCLE24 hr
Jan 9, 2:59 PM ESTWind AdvisoryCLE33 hr
Jan 10, 5:58 PM ESTHigh Wind WarningCLE10 hr
Jan 11, 3:39 PM ESTFlood WatchCLE26 hr
Jan 12, 8:34 AM ESTAreal Flood WarningCLE9 hr
Jan 12, 12:06 PM ESTRiver Flood WarningCLE57 hr
Jan 12, 5:30 PM ESTAreal Flood AdvisoryCLE18 hr
Jan 29, 1:14 PM ESTLake Effect Snow AdvisoryCLE24 hr
Jan 30, 2:40 PM ESTWinter Weather AdvisoryCLE21 hr
Feb 1, 8:27 AM ESTLake Effect Snow AdvisoryCLE3 hr
Feb 2, 3:22 AM ESTSpecial Weather StatementCLE83 min
Feb 9, 11:53 AM ESTLake Effect Snow AdvisoryCLE10 hr
Feb 11, 3:38 AM ESTWinter Storm WatchCLE24 hr
Feb 12, 3:42 AM ESTWinter Weather AdvisoryCLE29 hr
Feb 12, 3:53 AM ESTWind AdvisoryCLE21 hr
Feb 15, 3:31 AM ESTLake Effect Snow AdvisoryCLE35 hr
Feb 24, 8:49 PM ESTMesoscale DiscussionSPC116 min
Mar 1, 2:10 AM ESTSevere Thunderstorm WarningCLE80 min
Mar 1, 2:19 AM ESTMesoscale DiscussionSPC86 min
Mar 1, 2:51 AM ESTWind AdvisoryCLE25 hr
Mar 1, 5:45 AM ESTSevere Thunderstorm WarningCLE75 min
Mar 1, 3:56 PM ESTMesoscale DiscussionSPC2 hr
Mar 1, 4:49 PM ESTSevere Thunderstorm WarningCLE43 min
Mar 3, 8:06 AM ESTSpecial Weather StatementCLE84 min
Mar 7, 12:01 PM ESTWind AdvisoryCLE33 hr
Mar 12, 4:04 AM EDTWinter Storm WatchCLE19 hr
Mar 12, 10:46 PM EDTWinter Storm WarningCLE65 hr
Apr 6, 1:53 PM EDTWinter Weather AdvisoryCLE21 hr
Apr 16, 2:15 PM EDTMesoscale DiscussionSPC3 hr
Apr 20, 2:40 PM EDTMesoscale DiscussionSPC65 min
Apr 20, 6:05 PM EDTSpecial Weather StatementCLE40 min
Apr 20, 6:21 PM EDTSpecial Weather StatementCLE24 min
Apr 27, 6:17 PM EDTSpecial Weather StatementCLE43 min
Apr 30, 2:58 PM EDTMesoscale DiscussionSPC2 hr
Apr 30, 4:28 PM EDTSpecial Weather StatementCLE62 min
Apr 30, 4:41 PM EDTSevere Thunderstorm WarningCLE35 min
May 1, 12:32 PM EDTTornado WatchSPC4 hr
May 1, 1:45 PM EDTSevere Thunderstorm WarningCLE60 min
May 1, 2:22 PM EDTSevere Thunderstorm WarningCLE53 min
May 2, 3:12 AM EDTWind AdvisoryCLE15 hr
May 7, 2:10 PM EDTFreeze WarningCLE19 hr
May 8, 3:32 AM EDTFreeze WarningCLE29 hr
May 18, 2:04 PM EDTMesoscale DiscussionSPC116 min
May 18, 8:18 PM EDTSevere Thunderstorm WarningCLE42 min
May 18, 9:02 PM EDTSpecial Weather StatementCLE43 min
May 28, 1:56 PM EDTSevere Thunderstorm WatchSPC6 hr
May 28, 2:53 PM EDTSpecial Weather StatementCLE52 min
May 28, 3:46 PM EDTSpecial Weather StatementCLE59 min
May 28, 3:58 PM EDTFlash Flood WarningCLE3 hr
May 28, 4:09 PM EDTMesoscale DiscussionSPC66 min
May 28, 5:46 PM EDTMesoscale DiscussionSPC59 min
May 28, 6:59 PM EDTAreal Flood WarningCLE3 hr
May 28, 7:39 PM EDTMesoscale DiscussionSPC96 min
May 31, 2:05 PM EDTMesoscale DiscussionSPC85 min
Jun 15, 6:49 PM EDTSevere Thunderstorm WarningCLE26 min
Jun 18, 12:31 PM EDTMesoscale DiscussionSPC119 min
Jun 18, 1:31 PM EDTSevere Thunderstorm WarningCLE44 min
Jun 18, 1:37 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 18, 2:06 PM EDTSpecial Weather StatementCLE24 min
Jun 18, 2:40 PM EDTSevere Thunderstorm WarningCLE65 min
Jun 18, 4:30 PM EDTMesoscale DiscussionSPC90 min
Jun 18, 6:10 PM EDTSevere Thunderstorm WarningCLE50 min
Jun 18, 6:37 PM EDTSevere Thunderstorm WarningCLE68 min
Jun 18, 6:53 PM EDTAreal Flood AdvisoryCLE4 hr
Jun 19, 7:04 PM EDTSevere Thunderstorm WarningCLE41 min
Jun 22, 1:18 PM EDTMesoscale DiscussionSPC2 hr
Jun 26, 3:42 PM EDTSpecial Weather StatementCLE33 min
Jun 26, 4:14 PM EDTSpecial Weather StatementCLE46 min
Jun 30, 5:33 PM EDTFlash Flood WatchCLE6 hr
Jun 30, 6:47 PM EDTSpecial Weather StatementCLE88 min
Jul 1, 5:51 PM EDTSpecial Weather StatementCLE39 min
Jul 1, 6:41 PM EDTSpecial Weather StatementCLE49 min
Jul 7, 9:07 AM EDTSpecial Weather StatementCLE53 min
Jul 12, 3:18 PM EDTFlash Flood WatchCLE37 hr
Jul 16, 9:05 PM EDTSpecial Weather StatementCLE85 min
Jul 20, 11:36 AM EDTMesoscale DiscussionSPC114 min
Aug 4, 11:23 AM EDTSevere Thunderstorm WarningCLE67 min
Aug 4, 11:38 AM EDTMesoscale DiscussionSPC2 hr
Aug 4, 12:18 PM EDTAreal Flood AdvisoryCLE3 hr
Aug 4, 12:48 PM EDTFlash Flood WarningCLE6 hr
Aug 4, 12:57 PM EDTSevere Thunderstorm WarningCLE63 min
Aug 4, 1:25 PM EDTSevere Thunderstorm WatchSPC8 hr
Aug 4, 2:58 PM EDTSevere Thunderstorm WarningCLE77 min
Aug 4, 3:46 PM EDTMesoscale DiscussionSPC119 min
Aug 4, 4:12 PM EDTSevere Thunderstorm WarningCLE34 min
Aug 11, 12:39 PM EDTSpecial Weather StatementCLE21 min
Aug 17, 8:00 PM EDTMesoscale DiscussionSPC90 min
Aug 22, 10:00 AM EDTSpecial Weather StatementCLE60 min
Aug 22, 1:18 PM EDTSpecial Weather StatementCLE57 min
Sep 4, 6:50 PM EDTMesoscale DiscussionSPC115 min
Sep 4, 11:40 PM EDTSevere Thunderstorm WarningCLE35 min
Sep 5, 12:17 AM EDTSevere Thunderstorm WarningCLE28 min
Sep 6, 6:02 AM EDTSpecial Weather StatementCLE118 min
Sep 15, 12:37 AM EDTDense Fog AdvisoryCLE9 hr
Sep 30, 2:00 PM EDTFrost AdvisoryCLE18 hr
Oct 10, 1:53 AM EDTDense Fog AdvisoryCLE8 hr
Oct 15, 3:01 PM EDTSpecial Weather StatementCLE74 min
Oct 15, 3:03 PM EDTMesoscale DiscussionSPC57 min
Oct 16, 3:04 PM EDTFrost AdvisoryCLE19 hr
Nov 5, 2:08 AM ESTFlash Flood WatchCLE25 hr
Nov 5, 4:51 PM ESTMesoscale DiscussionSPC114 min
Nov 5, 5:28 PM ESTSevere Thunderstorm WatchSPC5 hr
Nov 5, 6:46 PM ESTSevere Thunderstorm WarningCLE59 min
Nov 17, 2:45 PM ESTWind AdvisoryCLE42 hr
Dec 10, 4:06 AM ESTWinter Storm WatchCLE34 hr
Dec 11, 1:42 PM ESTLake Effect Snow WarningCLE49 hr
Dec 13, 3:08 PM ESTWinter Storm WarningCLE16 hr
Dec 15, 3:41 AM ESTWinter Weather AdvisoryCLE36 hr
Dec 23, 3:24 PM ESTWinter Weather AdvisoryCLE48 hr
Dec 24, 4:38 AM ESTLake Effect Snow WarningCLE3 days
Dec 25, 10:57 AM ESTMesoscale DiscussionSPC4 hr
Dec 28, 3:32 AM ESTWinter Storm WatchCLE35 hr
Dec 29, 2:49 PM ESTWinter Weather AdvisoryCLE36 hr
Dec 30, 12:07 PM ESTSpecial Weather StatementCLE53 min
Dec 30, 1:13 PM ESTSpecial Weather StatementCLE62 min

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 archive20162018

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.