Alert archive / Pennsylvania / Lebanon County

Weather alerts in Lebanon County, Pennsylvania, 2012

175 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Lebanon County and its neighbors

Each county as a circle sized by its count in 2012. Tap one for its archive.

Alerts: 175
Warnings: 53
Watches: 32
Advisories: 35
Busiest month: July46 alerts
Busiest day: May 29, 20128 alerts

Over time

By month

Warning verification

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

Lebanon County, 2012

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	33	25	24%	3	100%	6 min
Flash flood warnings	3	2	33%	0

Each office's whole area, 2012

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS State College, PA: tornado warnings	6	2	67%	8	50%	24 min
NWS State College, PA: severe thunderstorm warnings	226	133	41%	370	84%	28 min
NWS State College, PA: flash flood warnings	21	11	48%	24	88%	62 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.

Issued	Product	Office	Lasted
Jan 12, 2:36 PM EST	Wind Advisory	CTP	28 hr
Jan 20, 4:28 AM EST	Winter Weather Advisory	CTP	30 hr
Jan 21, 12:59 AM EST	Mesoscale Discussion	SPC	4 hr
Jan 22, 3:09 AM EST	Freezing Rain Advisory	CTP	33 hr
Feb 23, 9:52 PM EST	Wind Advisory	CTP	37 hr
Mar 22, 11:00 PM EDT	Dense Fog Advisory	CTP	10 hr
Mar 25, 10:16 PM EDT	Freeze Watch	CTP	6 hr
Mar 26, 4:30 AM EDT	Freeze Warning	CTP	29 hr
Mar 29, 5:34 AM EDT	Freeze Watch	CTP	9 hr
Mar 29, 2:17 PM EDT	Freeze Warning	CTP	19 hr
Apr 2, 1:34 PM EDT	Frost Advisory	CTP	18 hr
Apr 5, 2:10 PM EDT	Freeze Warning	CTP	18 hr
Apr 5, 4:06 PM EDT	Fire Weather Watch	CTP	12 hr
Apr 6, 4:19 AM EDT	Red Flag Warning	CTP	16 hr
Apr 6, 11:01 AM EDT	Red Flag Warning	CTP	33 hr
Apr 6, 11:05 AM EDT	Freeze Warning	CTP	21 hr
Apr 7, 3:58 AM EDT	Fire Weather Watch	CTP	16 hr
Apr 7, 8:27 PM EDT	Red Flag Warning	CTP	24 hr
Apr 8, 4:49 AM EDT	Fire Weather Watch	CTP	17 hr
Apr 8, 9:49 PM EDT	Red Flag Warning	CTP	22 hr
Apr 9, 3:51 PM EDT	Fire Weather Watch	CTP	12 hr
Apr 10, 4:19 AM EDT	Red Flag Warning	CTP	15 hr
Apr 11, 4:45 AM EDT	Freeze Watch	CTP	10 hr
Apr 11, 2:21 PM EDT	Freeze Watch	CTP	13 hr
Apr 12, 3:48 AM EDT	Frost Advisory	CTP	29 hr
Apr 21, 5:12 PM EDT	Special Weather Statement	CTP	33 min
Apr 27, 4:26 AM EDT	Freeze Watch	CTP	5 hr
Apr 27, 9:40 AM EDT	Freeze Warning	CTP	23 hr
Apr 29, 9:51 AM EDT	Frost Advisory	CTP	23 hr
May 3, 7:32 PM EDT	Special Weather Statement	CTP	58 min
May 4, 1:26 PM EDT	Mesoscale Discussion	SPC	2 hr
May 15, 11:46 PM EDT	River Flood Warning	CTP	7 hr
May 23, 1:19 PM EDT	Special Weather Statement	CTP	41 min
May 23, 1:46 PM EDT	Areal Flood Advisory	CTP	3 hr
May 23, 2:29 PM EDT	Areal Flood Advisory	CTP	3 hr
May 26, 1:17 PM EDT	Mesoscale Discussion	SPC	88 min
May 26, 2:08 PM EDT	Mesoscale Discussion	SPC	37 min
May 26, 2:29 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 26, 6:04 PM EDT	Mesoscale Discussion	SPC	56 min
May 27, 5:21 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
May 27, 6:54 PM EDT	Severe Thunderstorm Warning	CTP	66 min
May 27, 7:56 PM EDT	Severe Thunderstorm Warning	CTP	81 min
May 29, 1:03 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
May 29, 2:13 PM EDT	Mesoscale Discussion	SPC	62 min
May 29, 3:12 PM EDT	Mesoscale Discussion	SPC	63 min
May 29, 4:40 PM EDT	Mesoscale Discussion	SPC	65 min
May 29, 5:03 PM EDT	Severe Thunderstorm Warning	CTP	72 min
May 29, 5:15 PM EDT	Areal Flood Advisory	CTP	3 hr
May 29, 5:37 PM EDT	Flash Flood Warning	CTP	3 hr
May 29, 5:48 PM EDT	Severe Thunderstorm Warning	CTP	72 min
Jun 1, 1:50 PM EDT	Tornado Watch	SPC	7 hr
Jun 1, 5:02 PM EDT	Flash Flood Watch	CTP	8 hr
Jun 1, 6:15 PM EDT	Special Weather Statement	CTP	30 min
Jun 1, 6:29 PM EDT	Severe Thunderstorm Warning	CTP	61 min
Jun 1, 6:54 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 1, 7:10 PM EDT	Areal Flood Advisory	CTP	2 hr
Jun 1, 8:01 PM EDT	Tornado Watch	SPC	4 hr
Jun 1, 8:47 PM EDT	Severe Thunderstorm Warning	CTP	58 min
Jun 1, 8:55 PM EDT	Areal Flood Advisory	CTP	2 hr
Jun 1, 9:17 PM EDT	Flash Flood Warning	CTP	5 hr
Jun 1, 9:46 PM EDT	Special Weather Statement	CTP	29 min
Jun 3, 1:37 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 3, 5:06 PM EDT	Special Weather Statement	CTP	54 min
Jun 3, 5:48 PM EDT	Special Weather Statement	CTP	57 min
Jun 3, 5:57 PM EDT	Severe Thunderstorm Warning	CTP	63 min
Jun 3, 8:32 PM EDT	Special Weather Statement	CTP	28 min
Jun 11, 5:28 PM EDT	Special Weather Statement	PHI	32 min
Jun 19, 2:58 PM EDT	Heat Advisory	CTP	53 hr
Jun 22, 12:18 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 1:41 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 25, 3:44 AM EDT	Mesoscale Discussion	SPC	2 hr
Jun 28, 1:54 PM EDT	Heat Advisory	CTP	52 hr
Jun 29, 3:41 AM EDT	Mesoscale Discussion	SPC	94 min
Jun 29, 4:12 AM EDT	Severe Thunderstorm Warning	CTP	48 min
Jul 1, 12:11 PM EDT	Mesoscale Discussion	SPC	64 min
Jul 5, 8:15 PM EDT	Excessive Heat Watch	CTP	15 hr
Jul 6, 11:16 AM EDT	Excessive Heat Warning	CTP	33 hr
Jul 7, 11:19 AM EDT	Mesoscale Discussion	SPC	86 min
Jul 7, 11:41 AM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 7, 5:27 PM EDT	Special Weather Statement	CTP	63 min
Jul 7, 5:43 PM EDT	Mesoscale Discussion	SPC	62 min
Jul 7, 6:14 PM EDT	Severe Thunderstorm Watch	SPC	3 hr
Jul 7, 6:21 PM EDT	Severe Thunderstorm Warning	CTP	72 min
Jul 7, 7:51 PM EDT	Severe Thunderstorm Warning	CTP	69 min
Jul 8, 8:21 AM EDT	Special Weather Statement	CTP	39 min
Jul 15, 3:11 PM EDT	Special Weather Statement	CTP	64 min
Jul 15, 6:48 PM EDT	Special Weather Statement	CTP	27 min
Jul 15, 7:17 PM EDT	Special Weather Statement	CTP	43 min
Jul 15, 8:20 PM EDT	Severe Thunderstorm Warning	CTP	70 min
Jul 16, 2:14 AM EDT	Heat Advisory	CTP	63 hr
Jul 18, 10:25 AM EDT	Mesoscale Discussion	SPC	2 hr
Jul 18, 12:41 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 18, 1:40 PM EDT	Severe Thunderstorm Warning	CTP	80 min
Jul 18, 2:37 PM EDT	Severe Thunderstorm Warning	CTP	83 min
Jul 18, 3:44 PM EDT	Mesoscale Discussion	SPC	91 min
Jul 19, 6:53 PM EDT	Mesoscale Discussion	SPC	97 min
Jul 19, 8:35 PM EDT	Severe Thunderstorm Warning	CTP	55 min
Jul 20, 4:23 AM EDT	Flash Flood Watch	CTP	19 hr
Jul 23, 3:54 PM EDT	Special Weather Statement	CTP	81 min
Jul 23, 4:10 PM EDT	Severe Thunderstorm Warning	CTP	65 min
Jul 23, 4:33 PM EDT	Severe Thunderstorm Warning	CTP	57 min
Jul 24, 1:08 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 25, 1:18 PM EDT	Heat Advisory	CTP	31 hr
Jul 26, 8:41 AM EDT	Special Weather Statement	CTP	64 min
Jul 26, 1:16 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 26, 3:37 PM EDT	Mesoscale Discussion	SPC	113 min
Jul 26, 5:09 PM EDT	Severe Thunderstorm Warning	CTP	81 min
Jul 26, 6:04 PM EDT	Mesoscale Discussion	SPC	86 min
Jul 26, 6:33 PM EDT	Severe Thunderstorm Warning	CTP	57 min
Jul 26, 6:57 PM EDT	Areal Flood Advisory	CTP	3 hr
Jul 26, 10:05 PM EDT	Areal Flood Advisory	CTP	3 hr
Jul 28, 12:26 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 28, 1:36 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 28, 4:18 PM EDT	Mesoscale Discussion	SPC	87 min
Jul 28, 5:05 PM EDT	Severe Thunderstorm Warning	CTP	55 min
Jul 28, 5:52 PM EDT	Severe Thunderstorm Warning	CTP	53 min
Jul 28, 6:46 PM EDT	Severe Thunderstorm Warning	CTP	59 min
Jul 30, 12:51 PM EDT	Special Weather Statement	CTP	69 min
Jul 30, 1:42 PM EDT	Areal Flood Advisory	CTP	3 hr
Jul 31, 7:42 PM EDT	Severe Thunderstorm Warning	CTP	63 min
Aug 3, 3:04 PM EDT	Severe Thunderstorm Warning	CTP	56 min
Aug 4, 1:42 PM EDT	Severe Thunderstorm Warning	CTP	63 min
Aug 4, 3:36 PM EDT	Special Weather Statement	CTP	24 min
Aug 4, 3:55 PM EDT	Special Weather Statement	PHI	65 min
Aug 5, 2:49 PM EDT	Mesoscale Discussion	SPC	86 min
Aug 5, 3:36 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 5, 3:38 PM EDT	Severe Thunderstorm Warning	CTP	82 min
Aug 5, 4:10 PM EDT	Areal Flood Advisory	CTP	3 hr
Aug 5, 4:16 PM EDT	Severe Thunderstorm Warning	CTP	59 min
Aug 9, 5:57 PM EDT	Special Weather Statement	CTP	63 min
Aug 9, 8:45 PM EDT	Severe Thunderstorm Warning	CTP	60 min
Aug 14, 6:52 PM EDT	Severe Thunderstorm Warning	CTP	53 min
Aug 14, 7:38 PM EDT	Severe Thunderstorm Warning	CTP	37 min
Aug 14, 9:57 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 14, 10:43 PM EDT	Special Weather Statement	CTP	62 min
Aug 17, 3:48 PM EDT	Special Weather Statement	CTP	42 min
Aug 26, 3:19 PM EDT	Flash Flood Watch	CTP	4 hr
Aug 26, 4:47 PM EDT	Special Weather Statement	CTP	43 min
Sep 4, 1:52 AM EDT	Flash Flood Watch	CTP	26 hr
Sep 8, 8:42 AM EDT	Mesoscale Discussion	SPC	93 min
Sep 8, 11:38 AM EDT	Mesoscale Discussion	SPC	97 min
Sep 8, 12:15 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Sep 8, 1:55 PM EDT	Severe Thunderstorm Warning	CTP	65 min
Sep 8, 2:11 PM EDT	Severe Thunderstorm Warning	CTP	94 min
Sep 8, 2:46 PM EDT	Areal Flood Advisory	CTP	3 hr
Sep 18, 11:19 AM EDT	Mesoscale Discussion	SPC	86 min
Sep 18, 12:10 PM EDT	Tornado Watch	SPC	9 hr
Sep 18, 12:52 PM EDT	Areal Flood Advisory	CTP	3 hr
Sep 18, 1:22 PM EDT	Severe Thunderstorm Warning	CTP	53 min
Sep 18, 1:56 PM EDT	Mesoscale Discussion	SPC	64 min
Sep 18, 2:00 PM EDT	Flash Flood Warning	CTP	5 hr
Sep 18, 2:13 PM EDT	Severe Thunderstorm Warning	CTP	62 min
Sep 22, 3:09 PM EDT	Mesoscale Discussion	SPC	2 hr
Oct 11, 3:42 AM EDT	Freeze Watch	CTP	31 hr
Oct 12, 4:25 AM EDT	Frost Advisory	CTP	3 hr
Oct 12, 10:15 AM EDT	Freeze Warning	CTP	22 hr
Oct 19, 4:48 PM EDT	Mesoscale Discussion	SPC	87 min
Oct 27, 4:39 AM EDT	Flood Watch	CTP	3 days
Oct 27, 3:05 PM EDT	High Wind Watch	CTP	13 hr
Oct 28, 4:11 AM EDT	High Wind Warning	CTP	48 hr
Oct 29, 11:45 AM EDT	River Flood Warning	CTP	32 hr
Oct 29, 11:45 AM EDT	River Flood Warning	CTP	22 hr
Oct 29, 12:01 PM EDT	Areal Flood Advisory	CTP	12 hr
Oct 29, 5:10 PM EDT	Areal Flood Warning	CTP	11 hr
Oct 30, 4:18 AM EDT	Wind Advisory	CTP	6 hr
Oct 30, 1:03 PM EDT	Areal Flood Advisory	CTP	4 hr
Nov 7, 1:39 AM EST	Winter Weather Advisory	CTP	28 hr
Nov 26, 12:43 PM EST	Winter Weather Advisory	CTP	24 hr
Dec 2, 1:10 AM EST	Dense Fog Advisory	CTP	8 hr
Dec 21, 5:37 AM EST	Wind Advisory	CTP	37 hr
Dec 24, 2:56 AM EST	Winter Weather Advisory	CTP	26 hr
Dec 25, 2:09 PM EST	Winter Weather Advisory	CTP	33 hr
Dec 26, 12:48 PM EST	Mesoscale Discussion	SPC	6 hr
Dec 28, 2:57 AM EST	Winter Weather Advisory	CTP	58 hr
Dec 30, 9:39 AM EST	Wind Advisory	CTP	5 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	33
Severe Thunderstorm Watch	12
Tornado Watch	3
Mesoscale Discussion	32
Special Weather Statement	23
Flooding
Areal Flood Warning	1
Flash Flood Warning	3
River Flood Warning	3
Flash Flood Watch	4
Flood Watch	1
Areal Flood Advisory	13
Winter
Freezing Rain Advisory	1
Winter Weather Advisory	6
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Heat Advisory	4
Cold
Freeze Warning	6
Freeze Watch	6
Frost Advisory	4
Wind and dust
High Wind Warning	1
High Wind Watch	1
Wind Advisory	5
Fire
Red Flag Warning	5
Fire Weather Watch	4
Fog and smoke
Dense Fog Advisory	2

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2011 2013

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.