Alert archive / Pennsylvania / Greene County

Weather alerts in Greene County, Pennsylvania, 2019

106 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Greene County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts
106
Warnings
24
Watches
19
Advisories
25
Busiest month
July20 alerts
Busiest day
July 6, 20196 alerts

Over time

By month

Warning verification

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

Greene County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings15940%560%21 min
Flash flood warnings220%3100%30 min

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Pittsburgh, PA: tornado warnings19763%1650%8 min
NWS Pittsburgh, PA: severe thunderstorm warnings31123126%61182%19 min
NWS Pittsburgh, PA: flash flood warnings1058024%28287%67 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 8, 1:54 PM ESTMesoscale DiscussionSPC2 hr
Jan 8, 4:44 PM ESTSpecial Weather StatementPBZ31 min
Jan 8, 5:16 PM ESTSpecial Weather StatementPBZ59 min
Jan 11, 2:08 PM ESTWinter Weather AdvisoryPBZ51 hr
Jan 16, 4:45 AM ESTWinter Weather AdvisoryPBZ6 hr
Jan 17, 2:54 PM ESTWinter Storm WatchPBZ22 hr
Jan 18, 1:10 PM ESTWinter Weather AdvisoryPBZ48 hr
Jan 19, 4:57 PM ESTWinter Weather AdvisoryPBZ17 hr
Jan 20, 10:03 AM ESTWind Chill AdvisoryPBZ27 hr
Jan 28, 11:52 PM ESTWinter Weather AdvisoryPBZ9 hr
Jan 29, 3:36 AM ESTWind Chill AdvisoryPBZ59 hr
Jan 30, 4:06 AM ESTWinter Weather AdvisoryPBZ5 hr
Jan 31, 2:45 PM ESTWinter Weather AdvisoryPBZ24 hr
Feb 6, 11:10 AM ESTFlood WatchPBZ41 hr
Feb 6, 11:10 PM ESTDense Fog AdvisoryPBZ11 hr
Feb 7, 6:17 PM ESTSpecial Weather StatementPBZ58 min
Feb 8, 12:47 AM ESTAreal Flood WarningPBZ13 hr
Feb 11, 9:54 AM ESTFlood WatchPBZ36 hr
Feb 12, 2:19 PM ESTWind AdvisoryPBZ26 hr
Feb 19, 3:05 AM ESTWinter Weather AdvisoryPBZ45 hr
Feb 19, 3:08 AM ESTFlood WatchPBZ40 hr
Feb 22, 3:35 AM ESTHigh Wind WatchPBZ35 hr
Feb 23, 2:34 PM ESTHigh Wind WarningPBZ43 hr
Feb 24, 7:45 PM ESTWind AdvisoryPBZ14 hr
Feb 28, 10:31 AM ESTWinter Weather AdvisoryPBZ20 hr
Mar 2, 1:31 PM ESTWinter Storm WarningPBZ35 hr
Mar 2, 1:31 PM ESTWinter Weather AdvisoryPBZ35 hr
Apr 14, 4:49 PM EDTMesoscale DiscussionSPC116 min
Apr 14, 5:57 PM EDTMesoscale DiscussionSPC63 min
Apr 14, 6:46 PM EDTTornado WatchSPC8 hr
Apr 20, 4:37 PM EDTSpecial Weather StatementPBZ38 min
May 3, 4:45 PM EDTMesoscale DiscussionSPC60 min
May 18, 1:45 AM EDTSevere Thunderstorm WarningPBZ30 min
May 23, 5:37 PM EDTSevere Thunderstorm WatchSPC5 hr
May 23, 5:44 PM EDTMesoscale DiscussionSPC61 min
May 23, 8:02 PM EDTMesoscale DiscussionSPC118 min
May 25, 12:53 PM EDTMesoscale DiscussionSPC2 hr
May 25, 4:50 PM EDTSevere Thunderstorm WatchSPC5 hr
May 25, 6:14 PM EDTSevere Thunderstorm WarningPBZ46 min
May 25, 8:03 PM EDTSpecial Weather StatementPBZ27 min
May 25, 8:21 PM EDTSevere Thunderstorm WarningPBZ24 min
May 28, 1:02 PM EDTMesoscale DiscussionSPC118 min
May 29, 3:37 AM EDTFlash Flood WatchPBZ17 hr
May 29, 12:06 PM EDTMesoscale DiscussionSPC84 min
May 29, 12:39 PM EDTSevere Thunderstorm WarningPBZ36 min
May 29, 12:56 PM EDTSevere Thunderstorm WatchSPC6 hr
May 29, 3:17 PM EDTMesoscale DiscussionSPC118 min
Jun 5, 5:28 PM EDTMesoscale DiscussionSPC62 min
Jun 13, 3:51 PM EDTMesoscale DiscussionSPC114 min
Jun 17, 3:38 AM EDTFlash Flood WatchPBZ4 days
Jun 24, 11:48 AM EDTMesoscale DiscussionSPC117 min
Jun 24, 3:37 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 24, 4:42 PM EDTMesoscale DiscussionSPC93 min
Jun 26, 2:36 PM EDTSevere Thunderstorm WarningPBZ24 min
Jun 26, 3:07 PM EDTSevere Thunderstorm WarningPBZ38 min
Jun 26, 3:42 PM EDTSevere Thunderstorm WarningPBZ33 min
Jun 29, 9:17 PM EDTSevere Thunderstorm WarningPBZ43 min
Jun 29, 9:42 PM EDTSevere Thunderstorm WarningPBZ37 min
Jul 2, 3:10 PM EDTMesoscale DiscussionSPC95 min
Jul 2, 6:18 PM EDTMesoscale DiscussionSPC117 min
Jul 2, 8:13 PM EDTSpecial Weather StatementPBZ47 min
Jul 6, 11:30 AM EDTFlash Flood WatchPBZ10 hr
Jul 6, 1:44 PM EDTSpecial Weather StatementPBZ31 min
Jul 6, 2:36 PM EDTMesoscale DiscussionSPC2 hr
Jul 6, 5:11 PM EDTSpecial Weather StatementPBZ34 min
Jul 6, 5:18 PM EDTSevere Thunderstorm WarningPBZ42 min
Jul 6, 6:00 PM EDTSpecial Weather StatementPBZ45 min
Jul 7, 12:05 PM EDTFlash Flood WatchPBZ9 hr
Jul 11, 10:45 AM EDTMesoscale DiscussionSPC90 min
Jul 11, 12:53 PM EDTFlash Flood WarningPBZ3 hr
Jul 11, 1:01 PM EDTFlash Flood WatchPBZ7 hr
Jul 11, 6:04 PM EDTSpecial Weather StatementPBZ41 min
Jul 11, 6:51 PM EDTAreal Flood AdvisoryPBZ93 min
Jul 11, 6:55 PM EDTSpecial Weather StatementPBZ35 min
Jul 17, 3:21 PM EDTExcessive Heat WatchPBZ24 hr
Jul 18, 3:26 PM EDTHeat AdvisoryPBZ53 hr
Jul 21, 12:00 PM EDTMesoscale DiscussionSPC3 hr
Jul 22, 12:52 AM EDTFlash Flood WatchPBZ19 hr
Aug 2, 3:46 PM EDTSevere Thunderstorm WarningPBZ29 min
Aug 2, 6:45 PM EDTFlash Flood WarningPBZ69 min
Aug 6, 8:14 PM EDTSpecial Weather StatementPBZ46 min
Aug 8, 12:37 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 13, 5:38 PM EDTSpecial Weather StatementPBZ37 min
Aug 18, 3:00 PM EDTSevere Thunderstorm WarningPBZ45 min
Aug 20, 10:06 PM EDTSpecial Weather StatementPBZ39 min
Aug 20, 10:18 PM EDTSevere Thunderstorm WarningPBZ42 min
Sep 1, 7:26 PM EDTMesoscale DiscussionSPC94 min
Sep 1, 11:37 PM EDTSevere Thunderstorm WarningPBZ38 min
Sep 11, 3:08 PM EDTMesoscale DiscussionSPC2 hr
Sep 28, 5:51 PM EDTMesoscale DiscussionSPC114 min
Sep 28, 6:32 PM EDTSevere Thunderstorm WarningPBZ43 min
Oct 8, 12:13 AM EDTDense Fog AdvisoryPBZ10 hr
Oct 12, 3:26 AM EDTFrost AdvisoryPBZ31 hr
Oct 18, 2:30 PM EDTFrost AdvisoryPBZ20 hr
Oct 31, 3:17 AM EDTWind AdvisoryPBZ31 hr
Oct 31, 11:12 AM EDTMesoscale DiscussionSPC2 hr
Nov 26, 11:37 AM ESTWind AdvisoryPBZ39 hr
Dec 12, 1:32 PM ESTWinter Weather AdvisoryPBZ23 hr
Dec 15, 4:09 AM ESTWinter Weather AdvisoryPBZ30 hr
Dec 16, 4:10 PM ESTFlood WatchPBZ17 hr
Dec 16, 6:46 PM ESTAreal Flood WarningPBZ9 hr
Dec 17, 3:54 AM ESTAreal Flood WarningPBZ6 hr
Dec 17, 10:50 AM ESTRiver Flood WarningPBZ21 hr
Dec 17, 10:50 AM ESTRiver Flood WarningPBZ20 hr
Dec 18, 4:32 PM ESTSpecial Weather StatementPBZ43 min
Dec 28, 7:43 PM ESTDense Fog AdvisoryPBZ10 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 archive20182020

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.