Alert archive / Maryland / Caroline County

Weather alerts in Caroline County, Maryland, 2011

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

Caroline County and its neighbors

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

Alerts: 273
Warnings: 56
Watches: 31
Advisories: 70
Busiest month: August49 alerts
Busiest day: April 5, 20119 alerts

Over time

By month

Warning verification

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

Caroline County, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	31	9	71%	4	100%	30 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 7, 3:34 PM EST	Winter Weather Advisory	PHI	27 hr
Jan 8, 3:22 AM EST	Winter Storm Warning	PHI	15 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 20, 3:35 AM EST	Winter Weather Advisory	PHI	29 hr
Jan 25, 4:06 AM EST	Winter Storm Watch	PHI	24 hr
Jan 26, 4:07 AM EST	Winter Storm Warning	PHI	24 hr
Jan 26, 4:07 AM EST	Winter Weather Advisory	PHI	23 hr
Jan 26, 2:19 PM EST	Mesoscale Discussion	SPC	6 hr
Jan 31, 3:18 PM EST	Winter Weather Advisory	PHI	24 hr
Feb 1, 2:49 PM EST	Freezing Rain Advisory	PHI	17 hr
Feb 8, 3:57 AM EST	Wind Advisory	PHI	16 hr
Feb 14, 3:11 AM EST	Wind Advisory	PHI	23 hr
Feb 14, 9:33 AM EST	Red Flag Warning	PHI	7 hr
Feb 15, 3:10 AM EST	Red Flag Warning	PHI	13 hr
Feb 18, 3:40 AM EST	Fire Weather Watch	PHI	12 hr
Feb 18, 3:03 PM EST	High Wind Watch	PHI	6 hr
Feb 18, 3:30 PM EST	Red Flag Warning	PHI	29 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 21, 3:13 PM EST	Winter Storm Warning	PHI	15 hr
Feb 24, 4:16 AM EST	High Wind Watch	PHI	11 hr
Feb 24, 3:07 PM EST	High Wind Warning	PHI	29 hr
Feb 25, 3:59 AM EST	Coastal Flood Advisory	PHI	10 hr
Feb 25, 11:36 AM EST	Mesoscale Discussion	SPC	84 min
Feb 25, 12:19 PM EST	Severe Thunderstorm Watch	SPC	3 hr
Feb 25, 1:36 PM EST	Severe Thunderstorm Warning	PHI	54 min
Feb 25, 2:19 PM EST	Severe Thunderstorm Warning	PHI	56 min
Feb 25, 2:40 PM EST	Mesoscale Discussion	SPC	65 min
Feb 25, 7:55 PM EST	Wind Advisory	PHI	3 hr
Feb 28, 12:49 PM EST	Mesoscale Discussion	SPC	56 min
Feb 28, 12:59 PM EST	Special Weather Statement	PHI	61 min
Mar 6, 3:30 AM EST	Coastal Flood Statement	PHI	17 hr
Mar 8, 4:18 AM EST	Flood Watch	PHI	3 days
Mar 10, 3:28 AM EST	Coastal Flood Advisory	PHI	21 hr
Mar 10, 7:28 AM EST	Areal Flood Advisory	PHI	6 hr
Mar 11, 3:25 AM EST	Coastal Flood Advisory	PHI	7 hr
Mar 21, 6:51 AM EDT	Special Weather Statement	PHI	54 min
Mar 21, 7:58 AM EDT	Special Weather Statement	PHI	92 min
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, 10:36 PM EDT	Special Weather Statement	PHI	114 min
Mar 26, 3:25 PM EDT	Winter Weather Advisory	PHI	19 hr
Apr 2, 3:10 PM EDT	Special Weather Statement	PHI	50 min
Apr 3, 4:09 PM EDT	Wind Advisory	PHI	26 hr
Apr 3, 10:29 PM EDT	Special Weather Statement	PHI	61 min
Apr 3, 11:09 PM EDT	Special Weather Statement	PHI	66 min
Apr 4, 2:15 PM EDT	Red Flag Warning	PHI	4 hr
Apr 4, 3:24 PM EDT	Wind Advisory	PHI	22 hr
Apr 5, 2:13 AM EDT	Mesoscale Discussion	SPC	32 min
Apr 5, 2:18 AM EDT	Tornado Watch	SPC	8 hr
Apr 5, 3:34 AM EDT	Mesoscale Discussion	SPC	116 min
Apr 5, 5:01 AM EDT	Severe Thunderstorm Warning	PHI	74 min
Apr 5, 5:28 AM EDT	Severe Thunderstorm Warning	PHI	62 min
Apr 5, 8:55 AM EDT	Special Weather Statement	PHI	65 min
Apr 5, 9:37 AM EDT	Special Weather Statement	PHI	53 min
Apr 5, 10:20 AM EDT	Severe Thunderstorm Warning	PHI	40 min
Apr 5, 3:05 PM EDT	Frost Advisory	PHI	13 hr
Apr 12, 3:45 PM EDT	Special Weather Statement	PHI	45 min
Apr 15, 3:10 PM EDT	Wind Advisory	PHI	32 hr
Apr 16, 3:25 AM EDT	Coastal Flood Warning	PHI	31 hr
Apr 16, 3:25 AM EDT	Coastal Flood Advisory	PHI	22 hr
Apr 16, 12:52 PM EDT	Mesoscale Discussion	SPC	113 min
Apr 16, 2:23 PM EDT	Coastal Flood Advisory	PHI	8 hr
Apr 16, 4:41 PM EDT	Tornado Watch	SPC	6 hr
Apr 16, 6:38 PM EDT	Mesoscale Discussion	SPC	97 min
Apr 16, 8:12 PM EDT	Mesoscale Discussion	SPC	63 min
Apr 16, 8:38 PM EDT	Severe Thunderstorm Warning	PHI	52 min
Apr 16, 9:58 PM EDT	Mesoscale Discussion	SPC	62 min
Apr 19, 4:32 PM EDT	Special Weather Statement	PHI	88 min
Apr 24, 2:12 PM EDT	Mesoscale Discussion	SPC	93 min
Apr 24, 3:40 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 24, 4:08 PM EDT	Special Weather Statement	PHI	52 min
Apr 24, 4:56 PM EDT	Severe Thunderstorm Warning	PHI	64 min
Apr 24, 6:10 PM EDT	Mesoscale Discussion	SPC	65 min
Apr 24, 10:39 PM EDT	Special Weather Statement	PHI	3 hr
Apr 27, 3:28 PM EDT	Special Weather Statement	PHI	62 min
Apr 27, 3:55 PM EDT	Mesoscale Discussion	SPC	65 min
Apr 27, 8:15 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Apr 28, 4:05 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 28, 9:45 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 28, 10:44 AM EDT	Mesoscale Discussion	SPC	61 min
Apr 28, 11:32 AM EDT	Special Weather Statement	PHI	58 min
Apr 28, 11:37 AM EDT	Severe Thunderstorm Warning	PHI	53 min
Apr 28, 2:00 PM EDT	Mesoscale Discussion	SPC	60 min
Apr 28, 5:04 PM EDT	Special Weather Statement	PHI	56 min
Apr 28, 5:38 PM EDT	Severe Thunderstorm Warning	PHI	39 min
May 11, 9:00 AM EDT	Coastal Flood Advisory	PHI	5 hr
May 11, 3:08 PM EDT	Coastal Flood Statement	PHI	12 hr
May 12, 8:40 AM EDT	Coastal Flood Statement	PHI	5 hr
May 13, 3:15 PM EDT	Coastal Flood Advisory	PHI	15 hr
May 14, 3:48 AM EDT	Coastal Flood Advisory	PHI	61 hr
May 14, 8:58 PM EDT	Special Weather Statement	PHI	92 min
May 14, 9:46 PM EDT	Special Weather Statement	PHI	89 min
May 14, 10:43 PM EDT	Special Weather Statement	PHI	92 min
May 15, 1:38 PM EDT	Mesoscale Discussion	SPC	2 hr
May 15, 7:47 PM EDT	Special Weather Statement	PHI	58 min
May 15, 8:54 PM EDT	Special Weather Statement	PHI	66 min
May 16, 4:37 PM EDT	Coastal Flood Advisory	PHI	17 hr
May 17, 5:35 AM EDT	Special Weather Statement	PHI	3 hr
May 17, 3:57 PM EDT	Coastal Flood Advisory	PHI	18 hr
May 17, 6:27 PM EDT	Mesoscale Discussion	SPC	2 hr
May 18, 12:55 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
May 18, 3:08 PM EDT	Mesoscale Discussion	SPC	67 min
May 18, 6:01 PM EDT	Mesoscale Discussion	SPC	89 min
May 18, 9:10 PM EDT	Coastal Flood Advisory	PHI	11 hr
May 18, 11:46 PM EDT	Special Weather Statement	PHI	59 min
May 19, 12:11 PM EDT	Special Weather Statement	PHI	94 min
May 19, 1:00 PM EDT	Special Weather Statement	PHI	60 min
May 19, 1:37 PM EDT	Areal Flood Advisory	PHI	6 hr
May 19, 3:39 PM EDT	Special Weather Statement	PHI	51 min
May 19, 6:44 PM EDT	Special Weather Statement	AKQ	61 min
May 19, 6:45 PM EDT	Special Weather Statement	AKQ	30 min
May 19, 7:21 PM EDT	Special Weather Statement	AKQ	39 min
May 19, 10:14 PM EDT	Severe Thunderstorm Warning	PHI	61 min
May 19, 11:11 PM EDT	Special Weather Statement	PHI	64 min
May 23, 8:04 PM EDT	Severe Thunderstorm Warning	PHI	56 min
Jun 1, 1:37 PM EDT	Mesoscale Discussion	SPC	83 min
Jun 1, 2:24 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 1, 6:27 PM EDT	Mesoscale Discussion	SPC	93 min
Jun 1, 8:25 PM EDT	Mesoscale Discussion	SPC	95 min
Jun 7, 3:15 PM EDT	Heat Advisory	PHI	53 hr
Jun 9, 1:45 PM EDT	Mesoscale Discussion	SPC	90 min
Jun 10, 12:16 AM EDT	Severe Thunderstorm Warning	PHI	59 min
Jun 10, 1:01 AM EDT	Special Weather Statement	PHI	119 min
Jun 11, 1:46 PM EDT	Special Weather Statement	PHI	44 min
Jun 12, 1:48 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 12, 5:55 PM EDT	Severe Thunderstorm Warning	PHI	65 min
Jun 12, 6:50 PM EDT	Severe Thunderstorm Warning	PHI	55 min
Jun 16, 3:05 PM EDT	Coastal Flood Statement	PHI	12 hr
Jun 17, 3:10 AM EDT	Coastal Flood Advisory	PHI	9 hr
Jun 17, 7:02 PM EDT	Special Weather Statement	PHI	58 min
Jun 17, 7:23 PM EDT	Severe Thunderstorm Warning	PHI	52 min
Jun 22, 12:40 AM EDT	Special Weather Statement	PHI	65 min
Jun 22, 1:05 AM EDT	Severe Thunderstorm Warning	PHI	55 min
Jun 22, 1:47 AM EDT	Areal Flood Advisory	PHI	105 min
Jun 22, 2:02 AM EDT	Special Weather Statement	PHI	58 min
Jun 24, 12:46 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 24, 4:13 PM EDT	Mesoscale Discussion	SPC	92 min
Jun 28, 7:26 PM EDT	Special Weather Statement	PHI	64 min
Jul 3, 7:18 PM EDT	Severe Thunderstorm Warning	PHI	57 min
Jul 3, 8:34 PM EDT	Severe Thunderstorm Warning	PHI	20 min
Jul 3, 8:41 PM EDT	Mesoscale Discussion	SPC	64 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, 4:17 PM EDT	Special Weather Statement	PHI	88 min
Jul 8, 4:29 PM EDT	Areal Flood Advisory	PHI	4 hr
Jul 8, 5:52 PM EDT	Mesoscale Discussion	SPC	83 min
Jul 8, 5:53 PM EDT	Severe Thunderstorm Warning	PHI	82 min
Jul 8, 6:23 PM EDT	Severe Thunderstorm Warning	PHI	82 min
Jul 11, 3:13 PM EDT	Heat Advisory	PHI	29 hr
Jul 11, 9:01 PM EDT	Severe Thunderstorm Watch	SPC	3 hr
Jul 11, 9:33 PM EDT	Severe Thunderstorm Warning	PHI	57 min
Jul 11, 10:28 PM EDT	Severe Thunderstorm Warning	PHI	33 min
Jul 13, 2:21 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 14, 11:58 PM EDT	Coastal Flood Advisory	PHI	12 hr
Jul 19, 2:13 PM EDT	Special Weather Statement	PHI	92 min
Jul 19, 2:29 PM EDT	Excessive Heat Warning	PHI	5 days
Jul 19, 4:25 PM EDT	Special Weather Statement	PHI	80 min
Jul 19, 6:32 PM EDT	Special Weather Statement	PHI	88 min
Jul 19, 6:53 PM EDT	Severe Thunderstorm Warning	PHI	38 min
Jul 19, 9:27 PM EDT	Special Weather Statement	PHI	93 min
Jul 20, 4:04 AM EDT	Excessive Heat Watch	PHI	11 hr
Jul 24, 3:48 AM EDT	Heat Advisory	PHI	16 hr
Jul 24, 1:42 PM EDT	Special Weather Statement	PHI	63 min
Jul 24, 4:06 PM EDT	Severe Thunderstorm Warning	PHI	54 min
Jul 24, 5:57 PM EDT	Special Weather Statement	PHI	63 min
Jul 25, 1:12 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 25, 3:54 PM EDT	Special Weather Statement	PHI	66 min
Jul 25, 4:26 PM EDT	Special Weather Statement	PHI	94 min
Jul 25, 5:02 PM EDT	Areal Flood Advisory	PHI	2 hr
Jul 28, 3:53 PM EDT	Heat Advisory	PHI	30 hr
Jul 28, 9:10 PM EDT	Special Weather Statement	PHI	65 min
Jul 28, 9:26 PM EDT	Severe Thunderstorm Warning	PHI	45 min
Jul 31, 12:30 PM EDT	Special Weather Statement	PHI	60 min
Jul 31, 1:23 PM EDT	Special Weather Statement	PHI	82 min
Aug 1, 3:22 PM EDT	Mesoscale Discussion	SPC	83 min
Aug 1, 6:18 PM EDT	Mesoscale Discussion	SPC	57 min
Aug 1, 6:41 PM EDT	Severe Thunderstorm Warning	PHI	18 min
Aug 1, 7:31 PM EDT	Special Weather Statement	PHI	119 min
Aug 1, 7:46 PM EDT	Severe Thunderstorm Warning	PHI	38 min
Aug 1, 9:29 PM EDT	Special Weather Statement	PHI	2 hr
Aug 3, 1:14 AM EDT	Special Weather Statement	PHI	61 min
Aug 3, 1:44 AM EDT	Special Weather Statement	PHI	61 min
Aug 9, 7:07 PM EDT	Mesoscale Discussion	SPC	83 min
Aug 13, 1:20 PM EDT	Special Weather Statement	PHI	115 min
Aug 13, 2:07 PM EDT	Mesoscale Discussion	SPC	113 min
Aug 14, 1:51 AM EDT	Areal Flood Advisory	PHI	6 hr
Aug 14, 2:27 AM EDT	Flash Flood Warning	PHI	4 hr
Aug 14, 3:42 AM EDT	Flash Flood Watch	PHI	25 hr
Aug 15, 3:25 PM EDT	Special Weather Statement	PHI	3 hr
Aug 19, 3:13 PM EDT	Mesoscale Discussion	SPC	62 min
Aug 19, 4:09 PM EDT	Severe Thunderstorm Warning	PHI	66 min
Aug 19, 4:42 PM EDT	Severe Thunderstorm Warning	PHI	63 min
Aug 19, 4:53 PM EDT	Areal Flood Advisory	PHI	5 hr
Aug 19, 6:18 PM EDT	Areal Flood Advisory	PHI	3 hr
Aug 19, 6:34 PM EDT	Areal Flood Advisory	PHI	2 hr
Aug 19, 9:18 PM EDT	Special Weather Statement	PHI	117 min
Aug 20, 7:00 PM EDT	Tropical Storm Warning	NHC	8 days
Aug 21, 11:00 AM EDT	Hurricane Warning	NHC	7 days
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, 4:03 PM EDT	Special Weather Statement	PHI	57 min
Aug 21, 5:09 PM EDT	Severe Thunderstorm Warning	PHI	37 min
Aug 21, 5:20 PM EDT	Areal Flood Advisory	PHI	115 min
Aug 21, 7:12 PM EDT	Mesoscale Discussion	SPC	63 min
Aug 21, 7:17 PM EDT	Areal Flood Advisory	PHI	118 min
Aug 25, 5:00 AM EDT	Tropical Storm Watch	NHC	54 hr
Aug 25, 11:19 AM EDT	Areal Flood Advisory	PHI	3 hr
Aug 25, 1:24 PM EDT	Special Weather Statement	PHI	96 min
Aug 25, 2:38 PM EDT	Areal Flood Advisory	PHI	3 hr
Aug 25, 4:36 PM EDT	Flood Watch	PHI	68 hr
Aug 25, 5:26 PM EDT	Tropical Storm Watch	PHI	25 hr
Aug 26, 5:16 AM EDT	Hurricane Warning	PHI	55 hr
Aug 26, 5:16 AM EDT	Tropical Storm Warning	PHI	66 hr
Aug 26, 4:35 PM EDT	Special Weather Statement	PHI	55 min
Aug 27, 10:41 AM EDT	Tornado Watch	SPC	9 hr
Aug 27, 1:01 PM EDT	Mesoscale Discussion	SPC	119 min
Aug 27, 1:28 PM EDT	Special Weather Statement	PHI	62 min
Aug 27, 2:14 PM EDT	Areal Flood Warning	PHI	6 hr
Aug 27, 2:36 PM EDT	Special Weather Statement	PHI	54 min
Aug 27, 7:27 PM EDT	Flash Flood Warning	PHI	12 hr
Aug 27, 7:56 PM EDT	Tornado Watch	SPC	9 hr
Aug 28, 7:07 AM EDT	Areal Flood Warning	PHI	12 hr
Aug 28, 3:23 PM EDT	Coastal Flood Statement	PHI	82 min
Sep 5, 6:03 PM EDT	Special Weather Statement	PHI	117 min
Sep 6, 5:26 PM EDT	Areal Flood Advisory	PHI	3 hr
Sep 6, 5:44 PM EDT	Special Weather Statement	PHI	2 hr
Sep 6, 10:21 PM EDT	Flash Flood Warning	PHI	3 hr
Sep 7, 11:48 AM EDT	Coastal Flood Advisory	PHI	18 hr
Sep 8, 9:23 AM EDT	Areal Flood Advisory	PHI	4 hr
Sep 8, 1:51 PM EDT	Areal Flood Advisory	PHI	6 hr
Sep 8, 3:53 PM EDT	Flash Flood Warning	PHI	4 hr
Sep 8, 4:27 PM EDT	Special Weather Statement	PHI	63 min
Sep 8, 7:41 PM EDT	Areal Flood Warning	PHI	14 hr
Sep 11, 6:38 PM EDT	Mesoscale Discussion	SPC	97 min
Sep 19, 3:02 PM EDT	Coastal Flood Advisory	PHI	7 hr
Sep 22, 3:43 AM EDT	Flood Watch	PHI	45 hr
Sep 23, 9:17 AM EDT	Areal Flood Advisory	PHI	6 hr
Sep 23, 4:33 PM EDT	Areal Flood Warning	PHI	5 hr
Sep 27, 4:54 PM EDT	Special Weather Statement	PHI	96 min
Sep 28, 8:30 AM EDT	Special Weather Statement	PHI	2 hr
Sep 28, 9:32 AM EDT	Areal Flood Advisory	PHI	3 hr
Sep 28, 10:05 AM EDT	Special Weather Statement	PHI	40 min
Sep 28, 1:40 PM EDT	Special Weather Statement	PHI	65 min
Sep 28, 1:58 PM EDT	Severe Thunderstorm Warning	PHI	62 min
Sep 28, 2:14 PM EDT	Areal Flood Advisory	PHI	2 hr
Sep 29, 3:34 AM EDT	Coastal Flood Statement	PHI	3 hr
Sep 30, 5:33 PM EDT	Coastal Flood Statement	PHI	48 min
Sep 30, 6:21 PM EDT	Coastal Flood Advisory	PHI	3 hr
Oct 12, 1:53 PM EDT	Coastal Flood Advisory	PHI	7 hr
Oct 13, 2:45 AM EDT	Coastal Flood Advisory	PHI	19 hr
Oct 14, 12:15 AM EDT	Coastal Flood Advisory	PHI	13 hr
Oct 14, 3:26 AM EDT	Coastal Flood Advisory	PHI	19 hr
Oct 19, 2:48 PM EDT	Coastal Flood Advisory	PHI	11 hr
Oct 20, 4:22 AM EDT	Coastal Flood Statement	PHI	4 hr
Oct 20, 8:25 AM EDT	Coastal Flood Advisory	PHI	9 hr
Oct 20, 5:09 PM EDT	Coastal Flood Advisory	PHI	3 hr
Oct 29, 3:28 PM EDT	Freeze Watch	PHI	12 hr
Oct 30, 3:55 AM EDT	Freeze Warning	PHI	29 hr
Nov 9, 5:29 AM EST	Dense Fog Advisory	PHI	5 hr
Nov 9, 10:38 PM EST	Dense Fog Advisory	PHI	12 hr
Nov 29, 4:27 PM EST	Areal Flood Advisory	PHI	4 hr
Dec 4, 10:44 PM EST	Dense Fog Advisory	PHI	11 hr
Dec 7, 3:45 AM EST	Wind Advisory	PHI	24 hr
Dec 7, 6:51 AM EST	Areal Flood Advisory	PHI	4 hr
Dec 7, 6:11 PM EST	Areal Flood Warning	PHI	8 hr
Dec 7, 7:19 PM EST	Mesoscale Discussion	SPC	26 min
Dec 27, 3:41 AM EST	Wind Advisory	PHI	18 hr
Dec 27, 3:44 AM EST	Coastal Flood Advisory	PHI	19 hr
Dec 27, 6:08 PM EST	Special Weather Statement	PHI	52 min

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	31
Severe Thunderstorm Watch	13
Tornado Watch	4
Mesoscale Discussion	38
Special Weather Statement	70
Flooding
Areal Flood Warning	5
Flash Flood Warning	4
Flash Flood Watch	2
Flood Watch	3
Areal Flood Advisory	21
Winter
Winter Storm Warning	3
Winter Storm Watch	2
Freezing Rain Advisory	1
Winter Weather Advisory	7
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Heat Advisory	4
Cold
Freeze Warning	1
Freeze Watch	1
Frost Advisory	1
Wind and dust
High Wind Warning	2
High Wind Watch	2
Wind Advisory	9
Fire
Red Flag Warning	4
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	3
Tropical
Hurricane Warning	2
Tropical Storm Warning	2
Tropical Storm Watch	2
Coast and beach
Coastal Flood Warning	1
Coastal Flood Advisory	24
Coastal Flood Statement	8

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.