Alert archive / Pennsylvania / Carbon County

Weather alerts in Carbon County, Pennsylvania, 2011

289 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Carbon County and its neighbors

Each county as a circle sized by its count in 2011. Tap one for its archive.

Alerts: 289
Warnings: 60
Watches: 46
Advisories: 48
Busiest month: May47 alerts
Busiest day: April 28, 201116 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 warnings covering Carbon County in 2011 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Carbon County, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	1	0%
Severe thunderstorm warnings	28	16	43%	16	100%	20 min
Flash flood warnings	4	1	75%	0

Each office's whole area, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Philadelphia/Mount Holly: tornado warnings	29	2	93%	7	29%	17 min
NWS Philadelphia/Mount Holly: severe thunderstorm warnings	307	164	47%	361	86%	25 min
NWS Philadelphia/Mount Holly: flash flood warnings	68	12	82%	21	67%	70 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 6, 1:31 PM EST	Winter Weather Advisory	PHI	25 hr
Jan 10, 4:01 AM EST	Winter Storm Watch	PHI	24 hr
Jan 11, 4:24 AM EST	Winter Weather Advisory	PHI	26 hr
Jan 17, 4:11 AM EST	Winter Weather Advisory	PHI	32 hr
Jan 17, 2:37 PM EST	Winter Storm Warning	PHI	25 hr
Jan 18, 12:29 AM EST	Mesoscale Discussion	SPC	6 hr
Jan 18, 3:33 AM EST	Mesoscale Discussion	SPC	6 hr
Jan 18, 8:01 AM EST	Mesoscale Discussion	SPC	4 hr
Jan 18, 3:33 PM EST	Winter Weather Advisory	PHI	16 hr
Jan 20, 3:35 AM EST	Winter Weather Advisory	PHI	29 hr
Jan 21, 12:30 AM EST	Mesoscale Discussion	SPC	5 hr
Jan 21, 1:28 PM EST	Special Weather Statement	PHI	62 min
Jan 23, 3:37 PM EST	Wind Chill Advisory	PHI	16 hr
Jan 25, 4:06 AM EST	Winter Storm Watch	PHI	24 hr
Jan 26, 4:07 AM EST	Winter Weather Advisory	PHI	23 hr
Jan 30, 8:35 PM EST	Winter Storm Watch	PHI	42 hr
Jan 31, 3:18 PM EST	Winter Storm Warning	PHI	24 hr
Feb 1, 2:42 AM EST	Mesoscale Discussion	SPC	4 hr
Feb 1, 2:49 PM EST	Ice Storm Warning	PHI	21 hr
Feb 1, 8:39 PM EST	Mesoscale Discussion	SPC	6 hr
Feb 3, 3:05 PM EST	Winter Storm Watch	PHI	13 hr
Feb 4, 4:24 AM EST	Winter Weather Advisory	PHI	41 hr
Feb 8, 3:57 AM EST	Wind Advisory	PHI	16 hr
Feb 14, 3:11 AM EST	Wind Advisory	PHI	23 hr
Feb 18, 3:03 PM EST	High Wind Watch	PHI	6 hr
Feb 18, 9:06 PM EST	High Wind Warning	PHI	22 hr
Feb 19, 7:26 PM EST	Wind Advisory	PHI	5 hr
Feb 20, 3:32 AM EST	Winter Weather Advisory	PHI	31 hr
Feb 20, 4:12 PM EST	Winter Storm Warning	PHI	18 hr
Feb 20, 11:50 PM EST	Mesoscale Discussion	SPC	5 hr
Feb 24, 4:16 AM EST	High Wind Watch	PHI	11 hr
Feb 24, 3:02 PM EST	Flood Watch	PHI	25 hr
Feb 24, 3:07 PM EST	High Wind Warning	PHI	29 hr
Feb 25, 4:56 AM EST	Freezing Rain Advisory	PHI	5 hr
Feb 25, 7:55 PM EST	Wind Advisory	PHI	3 hr
Feb 27, 4:44 AM EST	Flood Watch	PHI	34 hr
Feb 27, 3:28 PM EST	Freezing Rain Advisory	PHI	8 hr
Mar 5, 3:25 AM EST	Flood Watch	PHI	48 hr
Mar 6, 3:37 AM EST	Winter Weather Advisory	PHI	28 hr
Mar 6, 12:59 PM EST	Mesoscale Discussion	SPC	4 hr
Mar 6, 2:19 PM EST	Areal Flood Advisory	PHI	6 hr
Mar 6, 4:55 PM EST	Areal Flood Warning	PHI	12 hr
Mar 6, 9:31 PM EST	Areal Flood Warning	PHI	6 hr
Mar 8, 4:18 AM EST	Flood Watch	PHI	3 days
Mar 9, 3:47 AM EST	Winter Weather Advisory	PHI	27 hr
Mar 10, 1:17 PM EST	Areal Flood Advisory	PHI	5 hr
Mar 10, 4:36 PM EST	Areal Flood Warning	PHI	37 hr
Mar 10, 10:12 PM EST	River Flood Warning	PHI	13 hr
Mar 20, 4:03 AM EDT	Winter Weather Advisory	PHI	29 hr
Mar 22, 3:48 AM EDT	Winter Storm Watch	PHI	12 hr
Mar 22, 3:35 PM EDT	Winter Storm Warning	PHI	36 hr
Mar 23, 3:32 AM EDT	Mesoscale Discussion	SPC	4 hr
Mar 23, 6:53 PM EDT	Special Weather Statement	PHI	112 min
Mar 23, 8:30 PM EDT	Special Weather Statement	PHI	2 hr
Mar 23, 9:30 PM EDT	Winter Weather Advisory	PHI	9 hr
Mar 30, 3:55 PM EDT	Winter Storm Watch	PHI	12 hr
Mar 31, 3:54 AM EDT	Winter Storm Warning	PHI	24 hr
Apr 1, 3:57 AM EDT	Winter Weather Advisory	PHI	8 hr
Apr 5, 5:03 AM EDT	Mesoscale Discussion	SPC	27 min
Apr 5, 5:07 AM EDT	Severe Thunderstorm Watch	SPC	2 hr
Apr 11, 6:43 PM EDT	Mesoscale Discussion	SPC	62 min
Apr 11, 7:13 PM EDT	Special Weather Statement	PHI	92 min
Apr 15, 3:10 PM EDT	Wind Advisory	PHI	32 hr
Apr 16, 4:07 AM EDT	Flood Watch	PHI	24 hr
Apr 16, 6:37 PM EDT	Areal Flood Warning	PHI	8 hr
Apr 20, 3:45 PM EDT	Mesoscale Discussion	SPC	30 min
Apr 20, 4:03 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 23, 7:43 AM EDT	Special Weather Statement	PHI	2 hr
Apr 26, 10:01 PM EDT	Special Weather Statement	PHI	59 min
Apr 26, 11:34 PM EDT	Severe Thunderstorm Warning	PHI	56 min
Apr 27, 3:26 PM EDT	Flash Flood Watch	PHI	24 hr
Apr 27, 6:50 PM EDT	Mesoscale Discussion	SPC	55 min
Apr 27, 8:15 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Apr 27, 10:45 PM EDT	Mesoscale Discussion	SPC	60 min
Apr 28, 2:20 AM EDT	Mesoscale Discussion	SPC	55 min
Apr 28, 3:32 AM EDT	Mesoscale Discussion	SPC	28 min
Apr 28, 4:05 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 28, 4:24 AM EDT	Special Weather Statement	PHI	66 min
Apr 28, 4:36 AM EDT	Severe Thunderstorm Warning	PHI	54 min
Apr 28, 5:31 AM EDT	Special Weather Statement	PHI	59 min
Apr 28, 5:49 AM EDT	Special Weather Statement	PHI	56 min
Apr 28, 5:58 AM EDT	Areal Flood Advisory	PHI	3 hr
Apr 28, 6:18 AM EDT	Severe Thunderstorm Warning	PHI	57 min
Apr 28, 6:21 AM EDT	Mesoscale Discussion	SPC	54 min
Apr 28, 7:06 AM EDT	Flash Flood Warning	PHI	6 hr
Apr 28, 9:11 AM EDT	Special Weather Statement	PHI	49 min
Apr 28, 9:33 AM EDT	Severe Thunderstorm Warning	PHI	57 min
Apr 28, 10:25 AM EDT	Severe Thunderstorm Warning	PHI	50 min
May 3, 2:27 PM EDT	Mesoscale Discussion	SPC	2 hr
May 3, 3:47 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 3, 6:51 PM EDT	Mesoscale Discussion	SPC	84 min
May 3, 7:50 PM EDT	Special Weather Statement	PHI	40 min
May 3, 8:06 PM EDT	Special Weather Statement	PHI	39 min
May 3, 8:15 PM EDT	Severe Thunderstorm Warning	PHI	30 min
May 3, 8:47 PM EDT	Special Weather Statement	PHI	58 min
May 5, 3:49 AM EDT	Frost Advisory	PHI	28 hr
May 7, 1:13 PM EDT	Special Weather Statement	PHI	92 min
May 7, 3:11 PM EDT	Special Weather Statement	PHI	64 min
May 15, 12:52 AM EDT	Special Weather Statement	PHI	83 min
May 15, 5:33 PM EDT	Special Weather Statement	PHI	57 min
May 15, 8:15 PM EDT	Special Weather Statement	PHI	60 min
May 16, 3:50 PM EDT	Flood Watch	PHI	60 hr
May 18, 2:34 PM EDT	Mesoscale Discussion	SPC	56 min
May 18, 3:08 PM EDT	Mesoscale Discussion	SPC	67 min
May 19, 10:47 AM EDT	Mesoscale Discussion	SPC	88 min
May 19, 12:20 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
May 19, 2:17 PM EDT	Mesoscale Discussion	SPC	58 min
May 19, 2:54 PM EDT	Areal Flood Advisory	PHI	3 hr
May 19, 3:00 PM EDT	Special Weather Statement	PHI	60 min
May 19, 3:12 PM EDT	Severe Thunderstorm Warning	PHI	63 min
May 19, 5:02 PM EDT	Mesoscale Discussion	SPC	58 min
May 20, 3:30 AM EDT	Flash Flood Watch	PHI	15 hr
May 23, 4:40 PM EDT	Mesoscale Discussion	SPC	95 min
May 23, 6:30 PM EDT	Special Weather Statement	PHI	60 min
May 23, 7:22 PM EDT	Severe Thunderstorm Warning	PHI	38 min
May 23, 7:30 PM EDT	Tornado Warning	PHI	30 min
May 24, 1:34 PM EDT	Mesoscale Discussion	SPC	116 min
May 26, 5:49 PM EDT	Mesoscale Discussion	SPC	56 min
May 26, 5:50 PM EDT	Special Weather Statement	PHI	55 min
May 26, 6:50 PM EDT	Severe Thunderstorm Warning	PHI	55 min
May 26, 7:48 PM EDT	Special Weather Statement	PHI	57 min
May 26, 8:46 PM EDT	Severe Thunderstorm Warning	PHI	59 min
May 26, 8:54 PM EDT	Mesoscale Discussion	SPC	66 min
May 27, 12:24 PM EDT	Mesoscale Discussion	SPC	96 min
May 27, 12:57 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
May 27, 6:14 PM EDT	Mesoscale Discussion	SPC	2 hr
May 27, 11:06 PM EDT	Special Weather Statement	PHI	54 min
May 28, 12:22 AM EDT	Special Weather Statement	PHI	53 min
May 28, 12:36 AM EDT	Special Weather Statement	PHI	54 min
May 28, 1:14 AM EDT	Special Weather Statement	PHI	61 min
May 30, 3:11 AM EDT	Special Weather Statement	PHI	64 min
May 30, 3:46 AM EDT	Mesoscale Discussion	SPC	119 min
May 30, 3:50 AM EDT	Special Weather Statement	PHI	55 min
May 30, 4:39 AM EDT	Special Weather Statement	PHI	66 min
May 30, 5:11 AM EDT	Severe Thunderstorm Warning	PHI	64 min
Jun 1, 12:56 PM EDT	Severe Thunderstorm Warning	PHI	60 min
Jun 1, 12:58 PM EDT	Tornado Watch	SPC	7 hr
Jun 1, 1:57 PM EDT	Severe Thunderstorm Warning	PHI	63 min
Jun 5, 8:16 PM EDT	Special Weather Statement	PHI	59 min
Jun 9, 11:33 AM EDT	Mesoscale Discussion	SPC	57 min
Jun 9, 2:34 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 9, 3:18 PM EDT	Mesoscale Discussion	SPC	87 min
Jun 9, 4:41 PM EDT	Severe Thunderstorm Warning	PHI	64 min
Jun 9, 5:43 PM EDT	Severe Thunderstorm Warning	PHI	62 min
Jun 9, 6:44 PM EDT	Severe Thunderstorm Warning	PHI	61 min
Jun 9, 7:17 PM EDT	Mesoscale Discussion	SPC	58 min
Jun 10, 5:28 PM EDT	Mesoscale Discussion	SPC	92 min
Jun 11, 1:48 AM EDT	Special Weather Statement	PHI	57 min
Jun 11, 2:32 AM EDT	Special Weather Statement	PHI	58 min
Jun 11, 6:42 AM EDT	Special Weather Statement	PHI	63 min
Jun 12, 5:18 PM EDT	Special Weather Statement	PHI	57 min
Jun 12, 5:19 PM EDT	Special Weather Statement	PHI	56 min
Jun 12, 6:14 PM EDT	Special Weather Statement	PHI	61 min
Jun 22, 4:13 AM EDT	Special Weather Statement	PHI	92 min
Jun 22, 2:03 PM EDT	Mesoscale Discussion	SPC	117 min
Jun 23, 8:02 AM EDT	Special Weather Statement	PHI	88 min
Jun 23, 10:47 PM EDT	Special Weather Statement	PHI	58 min
Jun 24, 3:41 AM EDT	Flash Flood Watch	PHI	16 hr
Jun 24, 11:42 AM EDT	Mesoscale Discussion	SPC	3 hr
Jun 24, 12:46 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 24, 1:41 PM EDT	Special Weather Statement	PHI	64 min
Jun 28, 9:57 PM EDT	Special Weather Statement	PHI	93 min
Jul 3, 9:04 AM EDT	Special Weather Statement	PHI	86 min
Jul 3, 2:52 PM EDT	Special Weather Statement	PHI	68 min
Jul 3, 3:17 PM EDT	Areal Flood Advisory	PHI	5 hr
Jul 3, 6:01 PM EDT	Special Weather Statement	PHI	59 min
Jul 3, 7:02 PM EDT	Special Weather Statement	PHI	58 min
Jul 7, 8:56 PM EDT	Special Weather Statement	PHI	94 min
Jul 7, 9:10 PM EDT	Severe Thunderstorm Warning	PHI	67 min
Jul 7, 9:47 PM EDT	Severe Thunderstorm Warning	PHI	73 min
Jul 8, 3:58 AM EDT	Flash Flood Watch	PHI	19 hr
Jul 8, 11:44 AM EDT	Mesoscale Discussion	SPC	61 min
Jul 8, 1:51 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 8, 3:44 PM EDT	Severe Thunderstorm Warning	PHI	76 min
Jul 8, 5:52 PM EDT	Mesoscale Discussion	SPC	83 min
Jul 18, 6:04 PM EDT	Special Weather Statement	PHI	56 min
Jul 18, 6:15 PM EDT	Severe Thunderstorm Warning	PHI	75 min
Jul 19, 2:29 PM EDT	Excessive Heat Warning	PHI	5 days
Jul 20, 4:04 AM EDT	Excessive Heat Watch	PHI	11 hr
Jul 24, 1:33 PM EDT	Special Weather Statement	PHI	57 min
Jul 24, 3:04 PM EDT	Special Weather Statement	PHI	56 min
Jul 25, 11:58 AM EDT	Special Weather Statement	PHI	62 min
Jul 25, 12:19 PM EDT	Severe Thunderstorm Warning	PHI	56 min
Jul 25, 12:59 PM EDT	Areal Flood Advisory	PHI	2 hr
Jul 25, 5:18 PM EDT	Special Weather Statement	PHI	57 min
Jul 25, 5:42 PM EDT	Mesoscale Discussion	SPC	63 min
Jul 25, 5:49 PM EDT	Areal Flood Advisory	PHI	93 min
Jul 26, 5:24 PM EDT	Mesoscale Discussion	SPC	66 min
Jul 29, 12:57 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 29, 2:40 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 29, 3:44 PM EDT	Special Weather Statement	PHI	2 hr
Jul 29, 4:40 PM EDT	Mesoscale Discussion	SPC	95 min
Aug 1, 1:35 PM EDT	Special Weather Statement	PHI	3 hr
Aug 1, 2:15 PM EDT	Mesoscale Discussion	SPC	90 min
Aug 1, 3:14 PM EDT	Severe Thunderstorm Warning	PHI	51 min
Aug 1, 4:39 PM EDT	Severe Thunderstorm Warning	PHI	42 min
Aug 3, 8:11 PM EDT	Special Weather Statement	PHI	64 min
Aug 6, 8:49 PM EDT	Flood Watch	PHI	9 hr
Aug 6, 10:33 PM EDT	Areal Flood Advisory	PHI	6 hr
Aug 7, 6:03 AM EDT	Flash Flood Watch	PHI	14 hr
Aug 7, 3:53 PM EDT	Mesoscale Discussion	SPC	67 min
Aug 7, 9:43 PM EDT	Special Weather Statement	PHI	32 min
Aug 8, 5:06 PM EDT	Special Weather Statement	PHI	84 min
Aug 9, 3:05 PM EDT	Mesoscale Discussion	SPC	55 min
Aug 9, 4:16 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 9, 7:07 PM EDT	Mesoscale Discussion	SPC	83 min
Aug 13, 3:10 PM EDT	Flood Watch	PHI	13 hr
Aug 13, 5:06 PM EDT	Special Weather Statement	PHI	84 min
Aug 13, 6:15 PM EDT	Severe Thunderstorm Warning	PHI	30 min
Aug 13, 9:39 PM EDT	Areal Flood Advisory	PHI	4 hr
Aug 14, 3:42 AM EDT	Flash Flood Watch	PHI	25 hr
Aug 18, 3:12 PM EDT	Flash Flood Watch	PHI	29 hr
Aug 18, 7:47 PM EDT	Areal Flood Advisory	PHI	3 hr
Aug 19, 12:43 PM EDT	Mesoscale Discussion	SPC	62 min
Aug 19, 1:04 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 19, 2:35 PM EDT	Severe Thunderstorm Warning	PHI	70 min
Aug 19, 2:37 PM EDT	Special Weather Statement	BGM	38 min
Aug 19, 2:38 PM EDT	Areal Flood Advisory	PHI	3 hr
Aug 19, 2:57 PM EDT	Flash Flood Warning	PHI	3 hr
Aug 19, 3:47 PM EDT	Severe Thunderstorm Warning	PHI	58 min
Aug 19, 4:29 PM EDT	Severe Thunderstorm Warning	PHI	61 min
Aug 21, 11:54 AM EDT	Mesoscale Discussion	SPC	2 hr
Aug 21, 12:52 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 21, 4:11 PM EDT	Special Weather Statement	PHI	64 min
Aug 21, 4:19 PM EDT	Areal Flood Advisory	PHI	3 hr
Aug 21, 7:12 PM EDT	Mesoscale Discussion	SPC	63 min
Aug 25, 4:36 PM EDT	Flood Watch	PHI	68 hr
Aug 26, 5:16 AM EDT	Tropical Storm Warning	PHI	66 hr
Aug 27, 11:21 PM EDT	Areal Flood Warning	PHI	6 hr
Aug 28, 5:17 AM EDT	Flash Flood Warning	PHI	10 hr
Aug 28, 3:23 PM EDT	Areal Flood Warning	PHI	8 hr
Sep 4, 3:05 PM EDT	Flood Watch	PHI	4 days
Sep 4, 9:02 PM EDT	Special Weather Statement	PHI	2 hr
Sep 4, 10:15 PM EDT	Special Weather Statement	PHI	60 min
Sep 4, 10:36 PM EDT	Special Weather Statement	PHI	24 min
Sep 4, 11:20 PM EDT	Special Weather Statement	PHI	40 min
Sep 5, 1:40 AM EDT	Special Weather Statement	PHI	50 min
Sep 7, 5:10 PM EDT	Areal Flood Advisory	PHI	3 hr
Sep 7, 11:32 PM EDT	Areal Flood Advisory	PHI	3 hr
Sep 8, 9:32 AM EDT	Areal Flood Warning	PHI	15 hr
Sep 11, 2:00 AM EDT	Areal Flood Advisory	PHI	3 hr
Sep 14, 3:22 PM EDT	Mesoscale Discussion	SPC	53 min
Sep 14, 9:27 PM EDT	Special Weather Statement	PHI	2 hr
Sep 22, 3:43 AM EDT	Flood Watch	PHI	45 hr
Sep 23, 11:49 AM EDT	Areal Flood Advisory	PHI	6 hr
Sep 23, 1:59 PM EDT	Areal Flood Warning	PHI	3 hr
Sep 23, 5:53 PM EDT	Areal Flood Warning	PHI	12 hr
Sep 27, 11:13 AM EDT	Special Weather Statement	PHI	62 min
Sep 27, 7:42 PM EDT	Special Weather Statement	PHI	93 min
Sep 27, 7:45 PM EDT	Areal Flood Warning	PHI	3 hr
Sep 27, 8:16 PM EDT	Areal Flood Warning	PHI	3 hr
Sep 28, 3:56 AM EDT	Flash Flood Watch	PHI	39 hr
Sep 28, 4:21 PM EDT	Special Weather Statement	PHI	54 min
Sep 28, 4:45 PM EDT	Mesoscale Discussion	SPC	60 min
Sep 28, 5:27 PM EDT	Special Weather Statement	CTP	63 min
Sep 28, 5:29 PM EDT	Special Weather Statement	PHI	61 min
Sep 28, 5:32 PM EDT	Severe Thunderstorm Warning	PHI	58 min
Sep 28, 5:42 PM EDT	Areal Flood Advisory	PHI	3 hr
Sep 28, 6:41 PM EDT	Flash Flood Warning	PHI	3 hr
Sep 28, 8:32 PM EDT	Areal Flood Advisory	PHI	89 min
Sep 28, 9:58 PM EDT	Areal Flood Warning	PHI	12 hr
Sep 29, 12:41 AM EDT	Special Weather Statement	PHI	64 min
Sep 29, 11:22 AM EDT	Mesoscale Discussion	SPC	83 min
Sep 29, 1:32 PM EDT	Areal Flood Advisory	PHI	103 min
Oct 1, 9:03 PM EDT	Special Weather Statement	PHI	57 min
Oct 1, 9:57 PM EDT	Special Weather Statement	PHI	2 hr
Oct 1, 11:58 PM EDT	Special Weather Statement	PHI	2 hr
Oct 2, 2:44 AM EDT	Special Weather Statement	PHI	2 hr
Oct 2, 4:56 AM EDT	Special Weather Statement	PHI	3 hr
Oct 2, 4:55 PM EDT	Special Weather Statement	PHI	2 hr
Oct 6, 3:04 AM EDT	Frost Advisory	PHI	29 hr
Oct 14, 11:38 AM EDT	Special Weather Statement	PHI	52 min
Oct 14, 1:22 PM EDT	Special Weather Statement	PHI	53 min
Oct 22, 4:46 AM EDT	Frost Advisory	PHI	28 hr
Oct 27, 3:15 PM EDT	Winter Storm Watch	PHI	25 hr
Oct 28, 3:52 PM EDT	Winter Storm Warning	PHI	31 hr
Oct 29, 7:36 AM EDT	Mesoscale Discussion	SPC	5 hr
Oct 29, 1:01 PM EDT	Mesoscale Discussion	SPC	5 hr
Nov 22, 2:48 PM EST	Flash Flood Watch	PHI	16 hr
Nov 23, 1:17 AM EST	Areal Flood Advisory	PHI	6 hr
Nov 29, 4:27 PM EST	Areal Flood Advisory	PHI	4 hr
Dec 6, 3:10 PM EST	Winter Storm Watch	PHI	13 hr
Dec 7, 4:12 AM EST	Winter Storm Warning	PHI	23 hr
Dec 7, 6:51 AM EST	Areal Flood Advisory	PHI	4 hr
Dec 7, 10:53 AM EST	Areal Flood Advisory	PHI	3 hr
Dec 7, 6:21 PM EST	Mesoscale Discussion	SPC	4 hr
Dec 7, 6:25 PM EST	Areal Flood Warning	PHI	8 hr
Dec 8, 1:58 AM EST	Areal Flood Warning	PHI	5 hr
Dec 16, 5:20 AM EST	Wind Advisory	PHI	3 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	28
Tornado Warning	1
Severe Thunderstorm Watch	14
Tornado Watch	1
Mesoscale Discussion	56
Special Weather Statement	79
Flooding
Areal Flood Warning	14
Flash Flood Warning	4
River Flood Warning	1
Flash Flood Watch	9
Flood Watch	11
Areal Flood Advisory	23
Winter
Ice Storm Warning	1
Winter Storm Warning	7
Winter Storm Watch	8
Freezing Rain Advisory	2
Winter Weather Advisory	13
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Cold
Frost Advisory	3
Wind Chill Advisory	1
Wind and dust
High Wind Warning	2
High Wind Watch	2
Wind Advisory	6
Tropical
Tropical Storm Warning	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2010 2012

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.