Weather alerts in Delaware, 2026

301 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in 2026. Tap one for its archive.

Alerts: 301
Warnings: 146
Watches: 48
Advisories: 48
Busiest month: July95 alerts
Busiest day: July 28, 202618 alerts

Over time

By month

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	Counties	Lasted
Jan 1, 4:44 AM EST	Snow Squall Warning	PHI	New Castle	46 min
Jan 1, 5:34 AM EST	Snow Squall Warning	PHI	Kent, New Castle	56 min
Jan 1, 6:31 AM EST	Snow Squall Warning	PHI	Kent, Sussex	44 min
Jan 7, 12:12 AM EST	Dense Fog Advisory	PHI	Kent, New Castle	8 hr
Jan 17, 2:42 PM EST	Winter Weather Advisory	PHI	New Castle	29 hr
Jan 22, 2:12 AM EST	Winter Storm Watch	PHI	Kent, New Castle, Sussex	34 hr
Jan 22, 12:59 PM EST	Cold Weather Advisory	PHI	Kent, New Castle, Sussex	47 hr
Jan 23, 12:38 PM EST	Winter Storm Warning	PHI	Kent, New Castle, Sussex	60 hr
Jan 25, 6:01 AM EST	Mesoscale Discussion	SPC	Kent, New Castle	6 hr
Jan 25, 9:39 AM EST	Mesoscale Discussion	SPC	Kent, Sussex	3 hr
Jan 25, 3:02 PM EST	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	4 hr
Jan 26, 1:16 AM EST	Cold Weather Advisory	PHI	Kent, New Castle, Sussex	7 days
Jan 30, 3:54 PM EST	Coastal Flood Advisory	PHI	Sussex	44 hr
Jan 31, 1:55 AM EST	Wind Advisory	PHI	Sussex	40 hr
Feb 1, 3:20 PM EST	Coastal Flood Advisory	PHI	Sussex	22 hr
Feb 5, 12:15 PM EST	Extreme Cold Watch	PHI	Kent, New Castle, Sussex	13 hr
Feb 5, 12:21 PM EST	High Wind Watch	PHI	Kent, New Castle, Sussex	13 hr
Feb 6, 1:34 AM EST	Extreme Cold Warning	PHI	Kent, New Castle, Sussex	3 days
Feb 6, 1:34 AM EST	High Wind Warning	PHI	Kent, New Castle, Sussex	42 hr
Feb 6, 1:34 AM EST	Wind Advisory	PHI	Kent, New Castle, Sussex	48 hr
Feb 7, 5:14 AM EST	Snow Squall Warning	PHI	Kent	31 min
Feb 7, 7:18 AM EST	Snow Squall Warning	PHI	New Castle	27 min
Feb 7, 7:45 AM EST	Snow Squall Warning	PHI	New Castle	30 min
Feb 8, 1:59 AM EST	Cold Weather Advisory	PHI	Kent, New Castle, Sussex	32 hr
Feb 17, 1:15 PM EST	Dense Fog Advisory	PHI	Kent, New Castle, Sussex	21 hr
Feb 20, 1:50 PM EST	Winter Storm Watch	PHI	Kent, New Castle, Sussex	24 hr
Feb 20, 3:50 PM EST	Coastal Flood Watch	PHI	Kent, Sussex	23 hr
Feb 21, 3:27 AM EST	Blizzard Warning	PHI	Kent, New Castle, Sussex	58 hr
Feb 21, 3:27 AM EST	Winter Storm Warning	PHI	Kent, New Castle	58 hr
Feb 21, 2:45 PM EST	Coastal Flood Warning	PHI	Kent, Sussex	38 hr
Feb 22, 4:47 AM EST	Coastal Flood Advisory	PHI	New Castle	23 hr
Feb 22, 2:22 PM EST	Mesoscale Discussion	SPC	Kent, Sussex	2 hr
Feb 22, 4:58 PM EST	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	4 hr
Feb 23, 4:46 AM EST	Coastal Flood Advisory	PHI	Kent, Sussex	12 hr
Mar 2, 11:44 AM EST	Winter Weather Advisory	PHI	New Castle	34 hr
Mar 3, 4:04 PM EST	Dense Fog Advisory	PHI	Kent, New Castle, Sussex	6 hr
Mar 4, 1:08 PM EST	Dense Fog Advisory	PHI	Sussex	16 hr
Mar 6, 1:00 PM EST	Dense Fog Advisory	PHI	Sussex	23 hr
Mar 8, 1:22 AM EST	Dense Fog Advisory	PHI	New Castle	9 hr
Mar 9, 1:03 AM EDT	Dense Fog Advisory	PHI	Kent, Sussex	5 hr
Mar 9, 7:33 PM EDT	Dense Fog Advisory	PHI	Kent, New Castle, Sussex	10 hr
Mar 11, 6:47 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	118 min
Mar 11, 7:03 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle	3 hr
Mar 11, 7:48 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	42 min
Mar 11, 8:28 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	47 min
Mar 15, 12:47 PM EDT	Wind Advisory	PHI	Kent, New Castle, Sussex	37 hr
Mar 16, 4:20 AM EDT	Coastal Flood Advisory	PHI	Sussex	25 hr
Mar 16, 11:30 AM EDT	Tornado Watch	SPC	Kent, New Castle, Sussex	6 hr
Mar 16, 3:14 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	91 min
Mar 16, 8:15 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	4 hr
Mar 16, 9:04 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	116 min
Mar 16, 10:07 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	53 min
Mar 16, 10:13 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle, Sussex	62 min
Mar 16, 10:23 PM EDT	Tornado Warning	PHI	Kent	37 min
Mar 16, 10:24 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	62 min
Mar 16, 10:35 PM EDT	Tornado Warning	PHI	Kent	25 min
Mar 16, 10:39 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	New Castle	51 min
Mar 16, 10:44 PM EDT	Tornado Warning	PHI	Kent	18 min
Mar 16, 10:55 PM EDT	Mesoscale Discussion	SPC	Kent, Sussex	2 hr
Mar 21, 3:25 AM EDT	Dense Fog Advisory	PHI	New Castle	5 hr
Apr 1, 7:19 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	41 min
Apr 1, 11:24 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	36 min
Apr 1, 11:27 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	33 min
Apr 1, 11:46 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	14 min
Apr 3, 5:34 AM EDT	Dense Fog Advisory	PHI	Kent, New Castle, Sussex	5 hr
Apr 6, 12:15 PM EDT	Freeze Watch	PHI	Kent, New Castle, Sussex	14 hr
Apr 7, 2:19 AM EDT	Freeze Watch	PHI	Kent, New Castle, Sussex	31 hr
Apr 7, 2:19 AM EDT	Freeze Warning	PHI	Kent, New Castle, Sussex	31 hr
Apr 8, 8:55 AM EDT	Freeze Warning	PHI	Kent, New Castle, Sussex	24 hr
Apr 17, 3:00 PM EDT	Coastal Flood Advisory	PHI	Kent, New Castle, Sussex	39 hr
Apr 18, 1:02 PM EDT	Freeze Watch	PHI	Kent, New Castle, Sussex	37 hr
Apr 19, 4:37 PM EDT	Coastal Flood Advisory	PHI	Kent, Sussex	10 hr
Apr 20, 2:25 AM EDT	Freeze Warning	PHI	Kent, New Castle, Sussex	31 hr
Apr 29, 5:41 PM EDT	Coastal Flood Advisory	PHI	New Castle	11 hr
May 10, 3:10 PM EDT	Mesoscale Discussion	SPC	New Castle	3 hr
May 18, 2:52 AM EDT	Heat Advisory	PHI	New Castle	64 hr
May 19, 5:40 PM EDT	Mesoscale Discussion	SPC	New Castle	65 min
May 20, 1:52 PM EDT	Mesoscale Discussion	SPC	New Castle	53 min
May 20, 2:10 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	7 hr
May 20, 4:50 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	40 min
May 20, 5:18 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	42 min
May 20, 5:29 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	46 min
May 20, 5:29 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	61 min
May 20, 5:35 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	40 min
May 21, 3:51 PM EDT	Rip Current Statement	PHI	Sussex	4 days
May 22, 3:54 PM EDT	High Surf Advisory	PHI	Sussex	50 hr
May 27, 11:20 AM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	40 min
May 27, 11:58 AM EDT	Severe Thunderstorm Warning	PHI	Kent	62 min
Jun 1, 4:49 PM EDT	Rip Current Statement	PHI	Sussex	27 hr
Jun 6, 4:17 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	118 min
Jun 6, 4:45 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle	5 hr
Jun 6, 6:17 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	58 min
Jun 6, 6:36 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	114 min
Jun 10, 2:24 AM EDT	Heat Advisory	PHI	New Castle	66 hr
Jun 11, 3:02 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	118 min
Jun 11, 6:09 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	3 hr
Jun 11, 7:14 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	5 hr
Jun 12, 10:20 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	40 min
Jun 13, 2:49 AM EDT	Coastal Flood Advisory	PHI	Kent, Sussex	21 hr
Jun 14, 12:11 AM EDT	Coastal Flood Advisory	PHI	Kent, Sussex	25 hr
Jun 14, 6:22 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	113 min
Jun 14, 7:06 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	6 hr
Jun 14, 9:04 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	37 min
Jun 14, 9:25 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	2 hr
Jun 14, 9:54 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	51 min
Jun 14, 10:15 PM EDT	Flash Flood Warning	PHI	New Castle	3 hr
Jun 14, 10:38 PM EDT	Flash Flood Warning	PHI	New Castle	3 hr
Jun 15, 3:10 AM EDT	Coastal Flood Advisory	PHI	Kent, Sussex	23 hr
Jun 17, 4:51 PM EDT	Coastal Flood Advisory	PHI	New Castle	11 hr
Jun 17, 5:23 PM EDT	Rip Current Statement	PHI	Sussex	27 hr
Jun 22, 2:13 AM EDT	Flood Watch	PHI	New Castle	25 hr
Jun 22, 1:25 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	2 hr
Jun 22, 2:08 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	8 hr
Jun 22, 4:45 PM EDT	Mesoscale Discussion	SPC	New Castle	90 min
Jun 22, 7:49 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	41 min
Jun 22, 7:53 PM EDT	Mesoscale Discussion	SPC	Kent, Sussex	67 min
Jun 22, 8:06 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	39 min
Jun 22, 8:23 PM EDT	Tornado Warning	PHI	Sussex	22 min
Jun 22, 8:34 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	56 min
Jun 23, 11:45 AM EDT	Severe Thunderstorm Watch	SPC	Sussex	8 hr
Jun 27, 1:10 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	50 min
Jun 27, 1:44 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	25 min
Jun 28, 3:57 AM EDT	Extreme Heat Watch	PHI	Kent, New Castle, Sussex	71 hr
Jun 30, 2:44 AM EDT	Extreme Heat Warning	PHI	Kent, New Castle, Sussex	5 days
Jul 3, 3:25 PM EDT	Severe Thunderstorm Watch	SPC	New Castle	7 hr
Jul 4, 3:28 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	7 hr
Jul 4, 6:47 PM EDT	Mesoscale Discussion	SPC	New Castle	118 min
Jul 4, 7:17 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	43 min
Jul 4, 8:17 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	43 min
Jul 4, 8:19 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	116 min
Jul 4, 8:38 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	52 min
Jul 4, 8:48 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	57 min
Jul 4, 8:59 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	46 min
Jul 4, 9:07 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	22 min
Jul 4, 9:52 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	38 min
Jul 4, 10:52 PM EDT	Heat Advisory	PHI	Kent, New Castle, Sussex	21 hr
Jul 5, 2:33 AM EDT	Flood Watch	PHI	New Castle	41 hr
Jul 5, 5:08 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	52 min
Jul 5, 6:00 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	2 hr
Jul 5, 6:44 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	6 hr
Jul 5, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Kent	36 min
Jul 5, 7:04 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	41 min
Jul 5, 8:20 PM EDT	Mesoscale Discussion	SPC	New Castle	115 min
Jul 5, 10:05 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	40 min
Jul 5, 10:37 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	38 min
Jul 5, 11:00 PM EDT	Flash Flood Warning Considerable damage threat	PHI	New Castle	4 hr
Jul 5, 11:30 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	45 min
Jul 6, 3:35 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	55 min
Jul 6, 4:17 PM EDT	Flash Flood Warning	PHI	Kent, Sussex	3 hr
Jul 9, 2:09 AM EDT	Flood Watch	PHI	New Castle	19 hr
Jul 9, 1:37 PM EDT	Flash Flood Warning	PHI	New Castle	6 hr
Jul 9, 2:05 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	115 min
Jul 9, 2:30 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	7 hr
Jul 9, 4:30 PM EDT	Flash Flood Warning	PHI	New Castle	4 hr
Jul 9, 5:30 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	45 min
Jul 9, 7:06 PM EDT	Mesoscale Discussion	SPC	Kent, Sussex	84 min
Jul 9, 7:52 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	53 min
Jul 11, 4:16 AM EDT	Coastal Flood Advisory	PHI	Kent, Sussex	19 hr
Jul 11, 2:56 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	2 hr
Jul 12, 4:25 AM EDT	Coastal Flood Advisory	PHI	Kent, New Castle, Sussex	20 hr
Jul 13, 2:08 AM EDT	Extreme Heat Watch	PHI	New Castle	25 hr
Jul 13, 2:45 PM EDT	Heat Advisory	PHI	Kent, Sussex	53 hr
Jul 14, 2:38 AM EDT	Extreme Heat Warning	PHI	New Castle	41 hr
Jul 16, 12:10 AM EDT	Heat Advisory	PHI	New Castle	20 hr
Jul 17, 1:40 PM EDT	Flood Watch	PHI	New Castle	33 hr
Jul 18, 2:12 AM EDT	Heat Advisory	PHI	Sussex	17 hr
Jul 18, 12:50 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	85 min
Jul 18, 1:55 PM EDT	Tornado Watch	SPC	Kent, New Castle, Sussex	6 hr
Jul 18, 4:39 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	96 min
Jul 18, 5:14 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	61 min
Jul 18, 5:26 PM EDT	Severe Thunderstorm Warning Destructive damage threat	PHI	Kent, Sussex	49 min
Jul 18, 6:16 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	44 min
Jul 18, 6:27 PM EDT	Tornado Warning	PHI	Sussex	33 min
Jul 18, 6:40 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Kent, Sussex	36 min
Jul 18, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	22 min
Jul 18, 7:09 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	8 min
Jul 20, 2:44 PM EDT	Flood Watch	PHI	New Castle	31 hr
Jul 21, 1:23 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	2 hr
Jul 21, 2:06 PM EDT	Tornado Watch	SPC	New Castle	7 hr
Jul 21, 2:46 PM EDT	Severe Thunderstorm Watch	SPC	Kent, Sussex	11 hr
Jul 21, 3:40 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	95 min
Jul 21, 3:58 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	47 min
Jul 21, 4:38 PM EDT	Flash Flood Warning Considerable damage threat	PHI	New Castle	4 hr
Jul 21, 4:43 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	47 min
Jul 21, 4:43 PM EDT	Mesoscale Discussion	SPC	Kent, Sussex	92 min
Jul 21, 5:06 PM EDT	Severe Thunderstorm Warning	PHI	Kent	39 min
Jul 21, 5:30 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	45 min
Jul 21, 5:42 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Kent	48 min
Jul 21, 6:00 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	45 min
Jul 21, 6:53 PM EDT	Flash Flood Warning	PHI	Kent, New Castle	3 hr
Jul 21, 10:39 PM EDT	Mesoscale Discussion	SPC	Sussex	66 min
Jul 21, 10:42 PM EDT	Flash Flood Warning	PHI	Kent, Sussex	4 hr
Jul 22, 3:48 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	27 min
Jul 27, 2:11 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	2 hr
Jul 27, 2:15 PM EDT	Flood Watch	PHI	New Castle	38 hr
Jul 27, 3:31 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	44 min
Jul 27, 4:14 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	46 min
Jul 27, 4:56 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	20 min
Jul 27, 5:22 PM EDT	Flash Flood Warning	PHI	Sussex	2 hr
Jul 27, 7:16 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	119 min
Jul 28, 12:08 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	2 hr
Jul 28, 12:51 PM EDT	Severe Thunderstorm Watch	SPC	New Castle	8 hr
Jul 28, 2:04 PM EDT	Mesoscale Discussion	SPC	Sussex	116 min
Jul 28, 2:48 PM EDT	Severe Thunderstorm Watch	SPC	Kent, Sussex	9 hr
Jul 28, 4:20 PM EDT	Tornado Watch	SPC	Kent, New Castle, Sussex	5 hr
Jul 28, 4:53 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	2 hr
Jul 28, 5:29 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	61 min
Jul 28, 5:53 PM EDT	Severe Thunderstorm Warning	PHI	Kent	52 min
Jul 28, 6:08 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	52 min
Jul 28, 6:16 PM EDT	Tornado Warning	PHI	New Castle	29 min
Jul 28, 6:23 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	67 min
Jul 28, 6:27 PM EDT	Mesoscale Discussion	SPC	Kent	63 min
Jul 28, 6:38 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Kent, New Castle	67 min
Jul 28, 6:46 PM EDT	Tornado Warning	PHI	New Castle	29 min
Jul 28, 6:55 PM EDT	Severe Thunderstorm Warning	PHI	Kent	50 min
Jul 28, 6:59 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	61 min
Jul 28, 7:11 PM EDT	Flash Flood Warning	PHI	New Castle	3 hr
Jul 28, 7:40 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	50 min
Jul 28, 8:08 PM EDT	Tornado Warning	PHI	Sussex	26 min
Aug 2, 2:20 PM EDT	Flood Watch	PHI	New Castle	26 hr
Aug 3, 9:08 AM EDT	Flash Flood Warning	PHI	New Castle	3 hr
Aug 5, 1:50 PM EDT	Heat Advisory	PHI	New Castle	3 days
Aug 7, 12:50 PM EDT	Mesoscale Discussion	SPC	New Castle	2 hr
Aug 7, 1:22 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	7 hr
Aug 7, 4:56 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	64 min
Aug 8, 11:55 AM EDT	Mesoscale Discussion	SPC	New Castle	95 min
Aug 8, 1:12 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	5 hr
Aug 8, 1:26 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	49 min
Aug 8, 1:44 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	46 min
Aug 10, 9:29 AM EDT	Mesoscale Discussion	SPC	New Castle	91 min
Aug 10, 12:59 PM EDT	Mesoscale Discussion	SPC	Kent	2 hr
Aug 10, 2:10 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	6 hr
Aug 10, 4:19 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	116 min
Aug 10, 4:39 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	66 min
Aug 10, 4:46 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	20 min
Aug 10, 5:36 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle, Sussex	39 min
Aug 10, 6:07 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle, Sussex	38 min
Aug 10, 6:22 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	23 min
Aug 10, 6:28 PM EDT	Mesoscale Discussion	SPC	Kent, Sussex	92 min
Aug 10, 7:04 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	41 min
Aug 11, 3:23 AM EDT	Coastal Flood Advisory	PHI	Kent, New Castle, Sussex	23 hr
Aug 11, 4:56 PM EDT	Coastal Flood Advisory	PHI	Kent, New Castle, Sussex	33 hr
Aug 17, 4:43 AM EDT	Flash Flood Warning	PHI	New Castle	2 hr
Aug 17, 6:45 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	32 min
Aug 17, 7:04 PM EDT	Severe Thunderstorm Warning	PHI	Kent	20 min
Aug 19, 2:08 PM EDT	Flood Watch	PHI	New Castle	31 hr
Aug 20, 1:53 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	2 hr
Aug 20, 2:31 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	7 hr
Aug 20, 2:58 PM EDT	Tornado Watch	SPC	Kent, New Castle, Sussex	7 hr
Aug 20, 4:16 PM EDT	Tornado Warning	PHI	Kent	29 min
Aug 20, 4:26 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	2 hr
Aug 20, 4:50 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	New Castle	40 min
Aug 20, 5:27 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	New Castle	48 min
Aug 20, 5:39 PM EDT	Flash Flood Warning	PHI	New Castle	4 hr
Aug 20, 5:39 PM EDT	Tornado Warning	PHI	Kent	36 min
Aug 20, 5:40 PM EDT	Severe Thunderstorm Warning	PHI	Kent	50 min
Aug 20, 6:03 PM EDT	Tornado Warning	PHI	Kent	42 min
Aug 20, 6:09 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	51 min
Aug 20, 6:13 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	47 min
Aug 20, 6:21 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	39 min
Aug 20, 6:42 PM EDT	Mesoscale Discussion	SPC	Kent, Sussex	93 min
Aug 20, 6:53 PM EDT	Flash Flood Warning Considerable damage threat	PHI	Kent	105 min
Aug 20, 6:57 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	48 min
Aug 23, 3:32 AM EDT	Flash Flood Warning	PHI	New Castle	3 hr
Aug 26, 2:31 PM EDT	Flood Watch	PHI	New Castle	35 hr
Aug 27, 10:57 AM EDT	Mesoscale Discussion	SPC	New Castle	2 hr
Aug 27, 11:38 AM EDT	Flash Flood Warning	PHI	New Castle	4 hr
Aug 27, 12:51 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle	9 hr
Aug 27, 1:32 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	43 min
Aug 27, 1:50 PM EDT	Flash Flood Warning	PHI	New Castle	4 hr
Aug 27, 3:26 PM EDT	Areal Flood Warning	PHI	New Castle	5 hr
Aug 28, 1:11 PM EDT	Flash Flood Warning	PHI	Sussex	4 hr
Sep 1, 2:30 AM EDT	Heat Advisory	PHI	New Castle	18 hr
Sep 1, 3:13 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	2 hr
Sep 1, 4:32 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	7 hr
Sep 1, 6:32 PM EDT	Mesoscale Discussion	SPC	New Castle	88 min
Sep 1, 7:43 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	47 min
Sep 1, 8:17 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	58 min
Sep 1, 8:44 PM EDT	Flash Flood Warning	PHI	New Castle	3 hr
Sep 1, 8:46 PM EDT	Severe Thunderstorm Warning Destructive damage threat	PHI	Kent, New Castle	59 min
Sep 1, 9:40 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle, Sussex	65 min
Sep 1, 9:46 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	119 min
Sep 2, 3:53 AM EDT	Heat Advisory	PHI	Kent, New Castle, Sussex	40 hr
Sep 2, 1:35 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	40 min
Sep 2, 2:05 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	40 min
Sep 2, 2:38 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	47 min
Sep 3, 12:02 AM EDT	Severe Thunderstorm Warning	PHI	Kent	43 min
Sep 3, 1:34 AM EDT	Flash Flood Warning	PHI	New Castle	4 hr
Sep 3, 5:26 AM EDT	Areal Flood Warning	PHI	New Castle	4 hr
Sep 3, 8:38 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	5 hr
Sep 3, 11:13 PM EDT	Mesoscale Discussion	SPC	Kent, Sussex	92 min
Sep 4, 12:52 AM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	53 min
Sep 4, 1:35 AM EDT	Severe Thunderstorm Warning	PHI	Sussex	25 min
Sep 5, 4:13 PM EDT	Coastal Flood Advisory	PHI	Kent, Sussex	29 hr
Sep 12, 2:21 AM EDT	Flood Watch	PHI	New Castle	34 hr
Sep 21, 4:10 AM EDT	Rip Current Statement	PHI	Sussex	5 days
Sep 21, 1:24 PM EDT	Coastal Flood Watch	PHI	Kent, Sussex	27 hr
Sep 21, 1:24 PM EDT	Coastal Flood Advisory	PHI	Kent, New Castle, Sussex	3 days
Sep 21, 3:27 PM EDT	High Surf Advisory	PHI	Sussex	4 days
Sep 22, 2:51 AM EDT	Wind Advisory	PHI	Sussex	45 hr
Sep 22, 4:14 PM EDT	Coastal Flood Warning	PHI	Kent, Sussex	57 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	94
Tornado Warning	11
Severe Thunderstorm Watch	22
Tornado Watch	5
Mesoscale Discussion	55
Flooding
Areal Flood Warning	2
Flash Flood Warning	21
Flood Watch	10
Winter
Blizzard Warning	1
Snow Squall Warning	6
Winter Storm Warning	2
Winter Storm Watch	2
Winter Weather Advisory	2
Heat
Extreme Heat Warning	2
Extreme Heat Watch	2
Heat Advisory	9
Cold
Extreme Cold Warning	1
Freeze Warning	3
Extreme Cold Watch	1
Freeze Watch	3
Cold Weather Advisory	3
Wind and dust
High Wind Warning	1
High Wind Watch	1
Wind Advisory	4
Fog and smoke
Dense Fog Advisory	10
Coast and beach
Coastal Flood Warning	2
Coastal Flood Watch	2
Coastal Flood Advisory	18
High Surf Advisory	2
Rip Current Statement	4

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2025

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. Rebuilt daily.