Alert archive / Pennsylvania / Warren County

Weather alerts in Warren County, Pennsylvania, 2008

122 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Warren County and its neighbors

Each county as a circle sized by its count in 2008. Tap one for its archive.

Alerts
122
Warnings
33
Watches
22
Advisories
46
Busiest month
June20 alerts
Busiest day
June 29, 20086 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 1 tornado reports fell inside a warning.

Warren County, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings010%
Severe thunderstorm warnings12742%8100%30 min
Flash flood warnings3233%2100%82 min

Each office's whole area, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS State College, PA: tornado warnings50100%20%
NWS State College, PA: severe thunderstorm warnings1848653%17984%26 min
NWS State College, PA: flash flood warnings4325%1331%88 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
Dec 31, 8:53 PM ESTWinter Storm WarningCTP30 hr
Jan 5, 3:04 PM ESTFreezing Rain AdvisoryCTP7 hr
Jan 8, 3:19 PM ESTWind AdvisoryCTP19 hr
Jan 9, 3:31 AM ESTSevere Thunderstorm WarningCTP74 min
Jan 9, 3:50 AM ESTMesoscale DiscussionSPC115 min
Jan 18, 8:31 PM ESTLake Effect Snow WatchCTP7 hr
Jan 19, 3:33 AM ESTLake Effect Snow AdvisoryCTP48 hr
Jan 19, 3:33 AM ESTWind Chill AdvisoryCTP54 hr
Jan 28, 2:01 PM ESTFreezing Rain AdvisoryCTP20 hr
Jan 28, 3:25 PM ESTHigh Wind WatchCTP19 hr
Jan 29, 10:36 AM ESTHigh Wind WarningCTP25 hr
Jan 29, 10:36 AM ESTWind AdvisoryCTP29 hr
Jan 31, 2:17 PM ESTWinter Storm WarningCTP29 hr
Feb 1, 7:36 AM ESTMesoscale DiscussionSPC5 hr
Feb 3, 10:22 PM ESTWinter Weather AdvisoryCTP12 hr
Feb 5, 3:45 AM ESTFlood WatchCTP39 hr
Feb 6, 2:55 AM ESTDense Fog AdvisoryCTP5 hr
Feb 6, 8:25 AM ESTFlash Flood WarningCTP3 hr
Feb 6, 3:58 PM ESTWinter Weather AdvisoryCTP6 hr
Feb 9, 4:06 AM ESTWind AdvisoryCTP42 hr
Feb 10, 3:45 AM ESTWind Chill AdvisoryCTP30 hr
Feb 10, 12:25 PM ESTSnow and Blowing Snow AdvisoryCTP22 hr
Feb 11, 3:59 AM ESTWinter Storm WatchCTP12 hr
Feb 11, 3:58 PM ESTWinter Weather AdvisoryCTP44 hr
Feb 12, 1:06 PM ESTMesoscale DiscussionSPC6 hr
Feb 12, 7:41 PM ESTMesoscale DiscussionSPC6 hr
Feb 17, 7:40 AM ESTFreezing Rain AdvisoryCTP3 hr
Feb 21, 2:45 PM ESTWinter Weather AdvisoryCTP42 hr
Feb 25, 4:02 AM ESTWinter Storm WatchCTP11 hr
Feb 25, 3:15 PM ESTWinter Storm WarningCTP36 hr
Feb 29, 4:24 AM ESTSnow AdvisoryCTP24 hr
Mar 3, 5:10 AM ESTWinter Storm WatchCTP10 hr
Mar 3, 5:25 AM ESTFlood WatchCTP54 hr
Mar 3, 3:12 PM ESTIce Storm WarningCTP40 hr
Mar 4, 9:08 AM ESTMesoscale DiscussionSPC4 hr
Mar 6, 3:29 PM ESTWinter Storm WatchCTP12 hr
Mar 7, 3:48 AM ESTWinter Storm WarningCTP47 hr
Mar 8, 6:16 AM ESTMesoscale DiscussionSPC6 hr
Mar 8, 10:04 AM ESTWind AdvisoryCTP17 hr
Mar 27, 4:05 AM EDTWinter Weather AdvisoryCTP30 hr
Apr 19, 4:56 PM EDTRed Flag WarningCTP6 hr
May 28, 3:16 PM EDTFreeze WarningCTP17 hr
May 31, 5:05 PM EDTSevere Thunderstorm WarningCTP25 min
Jun 4, 7:49 PM EDTAreal Flood AdvisoryCTP3 hr
Jun 5, 2:34 PM EDTMesoscale DiscussionSPC86 min
Jun 8, 8:43 PM EDTSevere Thunderstorm WarningCTP77 min
Jun 10, 1:25 PM EDTMesoscale DiscussionSPC95 min
Jun 16, 10:19 AM EDTMesoscale DiscussionSPC2 hr
Jun 16, 11:28 AM EDTSevere Thunderstorm WatchSPC10 hr
Jun 16, 2:41 PM EDTMesoscale DiscussionSPC64 min
Jun 16, 5:53 PM EDTMesoscale DiscussionSPC67 min
Jun 21, 2:11 PM EDTSevere Thunderstorm WarningCTP48 min
Jun 22, 2:24 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 23, 2:55 PM EDTMesoscale DiscussionSPC95 min
Jun 28, 6:06 PM EDTMesoscale DiscussionSPC84 min
Jun 28, 6:31 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 28, 7:29 PM EDTSevere Thunderstorm WarningCTP61 min
Jun 28, 8:29 PM EDTSevere Thunderstorm WarningCTP61 min
Jun 29, 10:46 AM EDTMesoscale DiscussionSPC119 min
Jun 29, 12:11 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 29, 4:14 PM EDTMesoscale DiscussionSPC91 min
Jun 29, 5:22 PM EDTSevere Thunderstorm WarningCTP38 min
Jun 29, 5:56 PM EDTSevere Thunderstorm WarningCTP64 min
Jul 7, 9:14 PM EDTAreal Flood AdvisoryCTP91 min
Jul 13, 12:02 PM EDTAreal Flood AdvisoryCTP3 hr
Jul 20, 11:29 AM EDTMesoscale DiscussionSPC61 min
Jul 20, 12:35 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 22, 3:59 AM EDTDense Fog AdvisoryCTP5 hr
Jul 23, 2:36 AM EDTSevere Thunderstorm WarningCTP54 min
Jul 23, 8:27 PM EDTAreal Flood AdvisoryCTP3 hr
Jul 23, 9:30 PM EDTAreal Flood AdvisoryCTP3 hr
Jul 23, 10:02 PM EDTFlash Flood WarningCTP4 hr
Jul 24, 1:56 AM EDTFlash Flood WarningCTP5 hr
Jul 24, 3:23 AM EDTAreal Flood AdvisoryCTP6 hr
Jul 24, 6:45 AM EDTAreal Flood WarningCTP4 hr
Jul 26, 10:16 AM EDTMesoscale DiscussionSPC119 min
Jul 26, 4:53 PM EDTMesoscale DiscussionSPC97 min
Jul 26, 5:20 PM EDTSevere Thunderstorm WarningCTP85 min
Jul 26, 5:31 PM EDTSevere Thunderstorm WarningCTP89 min
Aug 9, 7:44 PM EDTSevere Thunderstorm WarningCTP35 min
Sep 14, 4:50 PM EDTWind AdvisoryCTP11 hr
Sep 14, 8:18 PM EDTHigh Wind WarningCTP8 hr
Sep 17, 3:33 PM EDTFreeze WatchCTP15 hr
Sep 18, 6:12 AM EDTFrost AdvisoryCTP26 hr
Oct 3, 10:00 PM EDTFrost AdvisoryCTP11 hr
Oct 4, 2:54 PM EDTFrost AdvisoryCTP18 hr
Oct 5, 5:19 AM EDTDense Fog AdvisoryCTP4 hr
Oct 6, 3:11 AM EDTFreeze WarningCTP29 hr
Oct 17, 3:48 AM EDTFreeze WatchCTP24 hr
Oct 17, 9:12 PM EDTFrost AdvisoryCTP12 hr
Oct 28, 4:19 AM EDTLake Effect Snow AdvisoryCTP23 hr
Oct 29, 3:18 AM EDTLake Effect Snow WarningCTP17 hr
Nov 15, 3:46 AM ESTLake Effect Snow WatchCTP12 hr
Nov 15, 3:31 PM ESTLake Effect Snow AdvisoryCTP19 hr
Nov 16, 3:28 AM ESTLake Effect Snow WatchCTP7 hr
Nov 16, 10:55 AM ESTLake Effect Snow WarningCTP32 hr
Nov 19, 3:02 PM ESTLake Effect Snow WatchCTP15 hr
Nov 20, 5:39 AM ESTLake Effect Snow WarningCTP58 hr
Nov 24, 8:58 AM ESTWinter Weather AdvisoryCTP19 hr
Nov 24, 4:05 PM ESTLake Effect Snow WatchCTP12 hr
Nov 25, 4:18 AM ESTLake Effect Snow WarningCTP34 hr
Nov 29, 2:52 PM ESTWinter Weather AdvisoryCTP34 hr
Dec 5, 4:50 AM ESTLake Effect Snow AdvisoryCTP10 hr
Dec 6, 5:41 AM ESTLake Effect Snow WatchCTP9 hr
Dec 6, 3:08 PM ESTLake Effect Snow WarningCTP29 hr
Dec 12, 5:31 PM ESTLake Effect Snow AdvisoryCTP9 hr
Dec 16, 4:44 AM ESTWinter Weather AdvisoryCTP31 hr
Dec 17, 3:34 PM ESTWinter Storm WatchCTP25 hr
Dec 18, 4:04 PM ESTWinter Storm WarningCTP26 hr
Dec 19, 7:22 AM ESTMesoscale DiscussionSPC5 hr
Dec 20, 3:05 PM ESTLake Effect Snow WatchCTP24 hr
Dec 20, 3:05 PM ESTWinter Weather AdvisoryCTP24 hr
Dec 21, 2:41 PM ESTLake Effect Snow WarningCTP25 hr
Dec 21, 2:41 PM ESTWind Chill AdvisoryCTP19 hr
Dec 23, 5:58 AM ESTWinter Weather AdvisoryCTP29 hr
Dec 24, 12:50 AM ESTMesoscale DiscussionSPC6 hr
Dec 24, 3:21 PM ESTWind AdvisoryCTP13 hr
Dec 27, 8:06 PM ESTWind AdvisoryCTP20 hr
Dec 29, 8:14 PM ESTWind AdvisoryCTP7 hr
Dec 30, 3:37 AM ESTWinter Weather AdvisoryCTP45 hr
Dec 30, 2:26 PM ESTWind AdvisoryCTP35 hr
Dec 31, 12:52 AM ESTMesoscale DiscussionSPC6 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 archive20072009

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.