Alert archive / Colorado / Areal Flood Advisories

Areal Flood Advisories in Colorado, 2021

290 areal flood advisories in 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of areal flood advisories reaches back to 2005.

Areal Flood Advisories by county

Each county as a circle sized by its count in 2021. Tap one for its archive.

Areal Flood Advisories: 290
Busiest month: July194 areal flood advisories
Busiest day: July 31, 202134 areal flood advisories

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Jan 12, 3:28 PM MST	Areal Flood Advisory	GJT	Eagle, Garfield, Pitkin	5 days
Apr 6, 1:57 PM MDT	Areal Flood Advisory	BOU	Larimer	93 min
Apr 27, 6:38 PM MDT	Areal Flood Advisory	BOU	Logan, Phillips	3 hr
May 2, 5:47 PM MDT	Areal Flood Advisory	BOU	Boulder	88 min
May 16, 1:33 PM MDT	Areal Flood Advisory	BOU	Jackson	87 min
May 16, 5:22 PM MDT	Areal Flood Advisory	BOU	Lincoln	113 min
May 17, 12:39 PM MDT	Areal Flood Advisory	BOU	Larimer	81 min
May 17, 2:22 PM MDT	Areal Flood Advisory	BOU	Grand	113 min
May 17, 3:45 PM MDT	Areal Flood Advisory	BOU	Boulder	75 min
May 17, 4:54 PM MDT	Areal Flood Advisory	BOU	Jefferson	3 hr
May 19, 11:35 AM MDT	Areal Flood Advisory	BOU	Larimer	85 min
May 19, 11:53 AM MDT	Areal Flood Advisory	BOU	Grand	82 min
May 19, 12:43 PM MDT	Areal Flood Advisory	BOU	Larimer	69 min
May 19, 1:18 PM MDT	Areal Flood Advisory	BOU	Larimer	87 min
May 23, 4:06 PM MDT	Areal Flood Advisory	BOU	Washington	3 hr
May 23, 5:12 PM MDT	Areal Flood Advisory	BOU	Logan, Washington	104 min
May 29, 3:39 PM MDT	Areal Flood Advisory	BOU	Larimer	83 min
May 30, 9:10 AM MDT	Areal Flood Advisory	BOU	Larimer	110 min
May 30, 2:06 PM MDT	Areal Flood Advisory	BOU	Park	84 min
Jun 1, 2:51 PM MDT	Areal Flood Advisory	BOU	Larimer	62 min
Jun 5, 1:29 PM MDT	Areal Flood Advisory	BOU	Grand	109 min
Jun 5, 2:43 PM MDT	Areal Flood Advisory	BOU	Grand	2 hr
Jun 6, 12:30 PM MDT	Areal Flood Advisory	BOU	Larimer	90 min
Jun 24, 3:40 PM MDT	Areal Flood Advisory	GJT	Delta, Montrose	4 hr
Jun 24, 4:15 PM MDT	Areal Flood Advisory	GJT	Garfield, Rio Blanco	3 hr
Jun 24, 6:19 PM MDT	Areal Flood Advisory	BOU	Larimer	86 min
Jun 25, 1:25 PM MDT	Areal Flood Advisory	BOU	Larimer	70 min
Jun 25, 1:32 PM MDT	Areal Flood Advisory	BOU	Boulder	88 min
Jun 25, 4:12 PM MDT	Areal Flood Advisory	BOU	Arapahoe	93 min
Jun 25, 4:42 PM MDT	Areal Flood Advisory	BOU	Arapahoe, Douglas	93 min
Jun 25, 7:16 PM MDT	Areal Flood Advisory	BOU	Arapahoe, Denver, Douglas, Jefferson	89 min
Jun 26, 1:06 PM MDT	Areal Flood Advisory	BOU	Boulder	84 min
Jun 27, 5:35 PM MDT	Areal Flood Advisory	BOU	Boulder	25 min
Jun 28, 12:01 PM MDT	Areal Flood Advisory	BOU	Larimer	89 min
Jun 29, 1:38 PM MDT	Areal Flood Advisory	BOU	Clear Creek, Jefferson	112 min
Jun 29, 3:51 PM MDT	Areal Flood Advisory	BOU	Grand	114 min
Jun 30, 8:20 PM MDT	Areal Flood Advisory	BOU	Weld	115 min
Jul 1, 11:27 AM MDT	Areal Flood Advisory	BOU	Elbert	93 min
Jul 1, 11:46 AM MDT	Areal Flood Advisory	GJT	Rio Blanco	119 min
Jul 1, 11:51 AM MDT	Areal Flood Advisory	BOU	Weld	84 min
Jul 1, 12:21 PM MDT	Areal Flood Advisory	BOU	Elbert	114 min
Jul 1, 12:28 PM MDT	Areal Flood Advisory	BOU	Weld	92 min
Jul 1, 12:58 PM MDT	Areal Flood Advisory	BOU	Grand	92 min
Jul 1, 1:05 PM MDT	Areal Flood Advisory	BOU	Adams, Weld	85 min
Jul 1, 1:12 PM MDT	Areal Flood Advisory	BOU	Weld	93 min
Jul 1, 1:25 PM MDT	Areal Flood Advisory	BOU	Douglas	95 min
Jul 1, 1:33 PM MDT	Areal Flood Advisory	BOU	Grand	87 min
Jul 1, 1:55 PM MDT	Areal Flood Advisory	BOU	Elbert	95 min
Jul 1, 2:20 PM MDT	Areal Flood Advisory	BOU	Adams, Arapahoe	3 hr
Jul 1, 2:52 PM MDT	Areal Flood Advisory	BOU	Boulder, Larimer	83 min
Jul 1, 3:04 PM MDT	Areal Flood Advisory	BOU	Arapahoe	86 min
Jul 1, 3:17 PM MDT	Areal Flood Advisory	BOU	Boulder	88 min
Jul 1, 3:51 PM MDT	Areal Flood Advisory	BOU	Larimer	84 min
Jul 1, 3:55 PM MDT	Areal Flood Advisory	BOU	Arapahoe, Denver	95 min
Jul 1, 4:03 PM MDT	Areal Flood Advisory	BOU	Boulder	87 min
Jul 1, 4:27 PM MDT	Areal Flood Advisory	BOU	Jefferson	93 min
Jul 1, 4:42 PM MDT	Areal Flood Advisory	BOU	Larimer	93 min
Jul 1, 5:19 PM MDT	Areal Flood Advisory	BOU	Park	86 min
Jul 1, 5:57 PM MDT	Areal Flood Advisory	BOU	Jefferson, Park	93 min
Jul 1, 6:48 PM MDT	Areal Flood Advisory	BOU	Arapahoe, Elbert	87 min
Jul 1, 6:52 PM MDT	Areal Flood Advisory	BOU	Weld	83 min
Jul 2, 1:37 PM MDT	Areal Flood Advisory	BOU	Grand	67 min
Jul 2, 2:26 PM MDT	Areal Flood Advisory	BOU	Larimer	2 hr
Jul 2, 3:26 PM MDT	Areal Flood Advisory	BOU	Larimer	59 min
Jul 2, 3:37 PM MDT	Areal Flood Advisory	BOU	Park	63 min
Jul 2, 7:11 PM MDT	Areal Flood Advisory	BOU	Adams	47 min
Jul 2, 7:17 PM MDT	Areal Flood Advisory	BOU	Larimer	88 min
Jul 3, 2:03 PM MDT	Areal Flood Advisory	BOU	Larimer	87 min
Jul 3, 5:38 PM MDT	Areal Flood Advisory	BOU	Logan	82 min
Jul 3, 5:40 PM MDT	Areal Flood Advisory	BOU	Elbert	95 min
Jul 3, 6:01 PM MDT	Areal Flood Advisory	BOU	Washington	89 min
Jul 4, 10:34 AM MDT	Areal Flood Advisory	BOU	Larimer	86 min
Jul 4, 11:54 AM MDT	Areal Flood Advisory	BOU	Larimer	81 min
Jul 4, 12:28 PM MDT	Areal Flood Advisory	BOU	Larimer	77 min
Jul 4, 1:51 PM MDT	Areal Flood Advisory	BOU	Larimer	75 min
Jul 4, 3:31 PM MDT	Areal Flood Advisory	BOU	Douglas	119 min
Jul 4, 3:56 PM MDT	Areal Flood Advisory	BOU	Elbert	53 min
Jul 5, 1:29 PM MDT	Areal Flood Advisory	BOU	Park	91 min
Jul 5, 1:36 PM MDT	Areal Flood Advisory	BOU	Grand	84 min
Jul 5, 1:53 PM MDT	Areal Flood Advisory	BOU	Larimer	82 min
Jul 5, 2:23 PM MDT	Areal Flood Advisory	BOU	Park	97 min
Jul 5, 3:53 PM MDT	Areal Flood Advisory	PUB	Custer	56 min
Jul 5, 4:15 PM MDT	Areal Flood Advisory	GJT	Dolores, Montezuma	2 hr
Jul 5, 4:18 PM MDT	Areal Flood Advisory	BOU	Clear Creek, Park	87 min
Jul 5, 5:14 PM MDT	Areal Flood Advisory	BOU	Arapahoe, Douglas	91 min
Jul 5, 5:53 PM MDT	Areal Flood Advisory	BOU	Arapahoe	97 min
Jul 5, 6:58 PM MDT	Areal Flood Advisory	BOU	Arapahoe	92 min
Jul 5, 7:36 PM MDT	Areal Flood Advisory	BOU	Adams, Arapahoe	84 min
Jul 6, 2:29 PM MDT	Areal Flood Advisory	PUB	Teller	3 hr
Jul 6, 9:08 PM MDT	Areal Flood Advisory	BOU	Boulder	52 min
Jul 9, 3:00 PM MDT	Areal Flood Advisory	BOU	Grand	2 hr
Jul 13, 12:43 PM MDT	Areal Flood Advisory	BOU	Larimer	92 min
Jul 13, 3:27 PM MDT	Areal Flood Advisory	GJT	Ouray, San Miguel	3 hr
Jul 13, 8:07 PM MDT	Areal Flood Advisory	BOU	Logan	59 min
Jul 13, 8:35 PM MDT	Areal Flood Advisory	BOU	Sedgwick	85 min
Jul 14, 2:26 PM MDT	Areal Flood Advisory	BOU	Larimer	94 min
Jul 14, 4:36 PM MDT	Areal Flood Advisory	BOU	Larimer	84 min
Jul 14, 6:47 PM MDT	Areal Flood Advisory	BOU	Denver	88 min
Jul 14, 7:39 PM MDT	Areal Flood Advisory	BOU	Morgan	72 min
Jul 16, 6:05 PM MDT	Areal Flood Advisory	BOU	Washington	115 min
Jul 16, 7:09 PM MDT	Areal Flood Advisory	BOU	Lincoln	81 min
Jul 17, 7:37 PM MDT	Areal Flood Advisory	BOU	Adams, Morgan	113 min
Jul 17, 10:38 PM MDT	Areal Flood Advisory	BOU	Elbert, Lincoln	82 min
Jul 20, 3:27 PM MDT	Areal Flood Advisory	BOU	Grand	78 min
Jul 20, 4:29 PM MDT	Areal Flood Advisory	BOU	Larimer	91 min
Jul 20, 7:53 PM MDT	Areal Flood Advisory	GJT	Montezuma	2 hr
Jul 21, 1:56 PM MDT	Areal Flood Advisory	BOU	Grand	3 hr
Jul 21, 2:31 PM MDT	Areal Flood Advisory	BOU	Park	119 min
Jul 21, 3:22 PM MDT	Areal Flood Advisory	BOU	Park	69 min
Jul 21, 4:40 PM MDT	Areal Flood Advisory	BOU	Douglas	65 min
Jul 21, 6:01 PM MDT	Areal Flood Advisory	BOU	Douglas, Elbert	89 min
Jul 21, 6:37 PM MDT	Areal Flood Advisory	GJT	Delta, Mesa, Montrose	2 hr
Jul 22, 2:38 AM MDT	Areal Flood Advisory	GJT	Dolores	3 hr
Jul 22, 11:15 AM MDT	Areal Flood Advisory	BOU	Larimer	2 hr
Jul 22, 11:44 AM MDT	Areal Flood Advisory	BOU	Larimer	2 hr
Jul 22, 12:04 PM MDT	Areal Flood Advisory	BOU	Larimer	116 min
Jul 22, 2:14 PM MDT	Areal Flood Advisory	BOU	Grand	22 min
Jul 22, 3:46 PM MDT	Areal Flood Advisory	GJT	Eagle	3 hr
Jul 22, 4:10 PM MDT	Areal Flood Advisory	GJT	Garfield	3 hr
Jul 22, 6:51 PM MDT	Areal Flood Advisory	BOU	Adams, Denver, Jefferson	84 min
Jul 22, 7:10 PM MDT	Areal Flood Advisory	BOU	Douglas	95 min
Jul 23, 12:46 PM MDT	Areal Flood Advisory	GJT	Montezuma	3 hr
Jul 23, 1:22 PM MDT	Areal Flood Advisory	GJT	Dolores, Montezuma	3 hr
Jul 23, 2:17 PM MDT	Areal Flood Advisory	GJT	Dolores, Montezuma, San Juan, San Miguel	3 hr
Jul 23, 2:41 PM MDT	Areal Flood Advisory	BOU	Grand	84 min
Jul 23, 3:26 PM MDT	Areal Flood Advisory	GJT	Ouray	3 hr
Jul 23, 4:11 PM MDT	Areal Flood Advisory	BOU	Clear Creek	2 hr
Jul 23, 4:28 PM MDT	Areal Flood Advisory	GJT	Gunnison	3 hr
Jul 23, 4:57 PM MDT	Areal Flood Advisory	GJT	Hinsdale, Ouray, San Juan	3 hr
Jul 23, 5:12 PM MDT	Areal Flood Advisory	GJT	Mesa	3 hr
Jul 23, 5:19 PM MDT	Areal Flood Advisory	GJT	Garfield	3 hr
Jul 23, 5:25 PM MDT	Areal Flood Advisory	GJT	Garfield, Mesa	3 hr
Jul 23, 5:29 PM MDT	Areal Flood Advisory	GJT	Garfield	3 hr
Jul 23, 5:36 PM MDT	Areal Flood Advisory	GJT	Gunnison, Hinsdale	3 hr
Jul 23, 5:51 PM MDT	Areal Flood Advisory	GJT	Montrose	3 hr
Jul 23, 6:04 PM MDT	Areal Flood Advisory	GJT	Rio Blanco	116 min
Jul 23, 6:11 PM MDT	Areal Flood Advisory	GJT	Delta	2 hr
Jul 23, 6:33 PM MDT	Areal Flood Advisory	BOU	Sedgwick	2 hr
Jul 23, 7:04 PM MDT	Areal Flood Advisory	GJT	Mesa, Montrose	109 min
Jul 23, 7:14 PM MDT	Areal Flood Advisory	GJT	Garfield, Mesa	3 hr
Jul 23, 8:44 PM MDT	Areal Flood Advisory	GJT	Dolores, San Miguel	2 hr
Jul 24, 12:34 PM MDT	Areal Flood Advisory	GJT	Delta, Gunnison, Mesa, Pitkin	3 hr
Jul 24, 1:36 PM MDT	Areal Flood Advisory	GJT	Garfield, Mesa	13 min
Jul 24, 1:46 PM MDT	Areal Flood Advisory	GJT	San Miguel	3 hr
Jul 24, 2:09 PM MDT	Areal Flood Advisory	GJT	San Miguel	55 min
Jul 24, 2:34 PM MDT	Areal Flood Advisory	GJT	Montrose, San Miguel	30 min
Jul 24, 3:27 PM MDT	Areal Flood Advisory	GJT	Montezuma	2 hr
Jul 24, 3:45 PM MDT	Areal Flood Advisory	GJT	Montrose	4 min
Jul 25, 1:38 PM MDT	Areal Flood Advisory	GJT	Dolores, San Miguel	112 min
Jul 25, 1:58 PM MDT	Areal Flood Advisory	BOU	Washington	92 min
Jul 25, 2:03 PM MDT	Areal Flood Advisory	BOU	Elbert	87 min
Jul 25, 2:34 PM MDT	Areal Flood Advisory	BOU	Elbert	86 min
Jul 25, 2:55 PM MDT	Areal Flood Advisory	BOU	Lincoln	95 min
Jul 25, 3:39 PM MDT	Areal Flood Advisory	BOU	Lincoln	96 min
Jul 25, 3:53 PM MDT	Areal Flood Advisory	GJT	Rio Blanco	2 hr
Jul 25, 4:23 PM MDT	Areal Flood Advisory	BOU	Larimer	82 min
Jul 25, 4:45 PM MDT	Areal Flood Advisory	GJT	Montezuma	3 hr
Jul 25, 5:46 PM MDT	Areal Flood Advisory	GJT	Rio Blanco	3 hr
Jul 25, 6:49 PM MDT	Areal Flood Advisory	BOU	Jefferson	86 min
Jul 25, 7:10 PM MDT	Areal Flood Advisory	BOU	Boulder	95 min
Jul 25, 7:20 PM MDT	Areal Flood Advisory	BOU	Clear Creek	85 min
Jul 25, 7:54 PM MDT	Areal Flood Advisory	BOU	Park	96 min
Jul 25, 8:42 PM MDT	Areal Flood Advisory	GJT	Mesa	3 hr
Jul 25, 11:03 PM MDT	Areal Flood Advisory	GJT	Mesa	2 hr
Jul 26, 4:06 PM MDT	Areal Flood Advisory	GJT	La Plata	3 hr
Jul 26, 4:37 PM MDT	Areal Flood Advisory	GJT	Montezuma	3 hr
Jul 26, 5:14 PM MDT	Areal Flood Advisory	GJT	Dolores	3 hr
Jul 26, 8:47 PM MDT	Areal Flood Advisory	GJT	Mesa	118 min
Jul 27, 2:03 PM MDT	Areal Flood Advisory	GJT	Montezuma	31 min
Jul 27, 3:58 PM MDT	Areal Flood Advisory	GJT	Dolores, Montezuma	3 hr
Jul 27, 7:28 PM MDT	Areal Flood Advisory	GJT	La Plata	3 hr
Jul 28, 1:54 PM MDT	Areal Flood Advisory	GJT	Dolores, Montezuma	3 hr
Jul 28, 2:35 PM MDT	Areal Flood Advisory	GJT	Rio Blanco	3 hr
Jul 28, 3:08 PM MDT	Areal Flood Advisory	GJT	Rio Blanco	3 hr
Jul 28, 4:47 PM MDT	Areal Flood Advisory	GJT	Mesa	3 hr
Jul 28, 7:31 PM MDT	Areal Flood Advisory	GJT	Mesa	119 min
Jul 29, 2:36 PM MDT	Areal Flood Advisory	GJT	Dolores, San Miguel	3 hr
Jul 29, 2:53 PM MDT	Areal Flood Advisory	GJT	Archuleta	112 min
Jul 29, 4:58 PM MDT	Areal Flood Advisory	GJT	Montezuma	3 hr
Jul 29, 5:34 PM MDT	Areal Flood Advisory	GJT	Montezuma	3 hr
Jul 29, 5:38 PM MDT	Areal Flood Advisory	BOU	Jackson, Larimer	2 hr
Jul 29, 6:37 PM MDT	Areal Flood Advisory	BOU	Grand	83 min
Jul 29, 6:55 PM MDT	Areal Flood Advisory	GJT	La Plata, Montezuma	3 hr
Jul 29, 7:11 PM MDT	Areal Flood Advisory	GJT	Garfield	2 hr
Jul 29, 7:27 PM MDT	Areal Flood Advisory	BOU	Grand	93 min
Jul 29, 9:46 PM MDT	Areal Flood Advisory	GJT	Moffat	3 hr
Jul 29, 10:19 PM MDT	Areal Flood Advisory	BOU	Larimer	86 min
Jul 29, 10:28 PM MDT	Areal Flood Advisory	GJT	Moffat	3 hr
Jul 30, 1:08 PM MDT	Areal Flood Advisory	BOU	Larimer	6 min
Jul 30, 2:48 PM MDT	Areal Flood Advisory	BOU	Larimer	87 min
Jul 30, 3:45 PM MDT	Areal Flood Advisory	BOU	Grand	2 hr
Jul 30, 3:59 PM MDT	Areal Flood Advisory	BOU	Larimer, Weld	61 min
Jul 30, 4:34 PM MDT	Areal Flood Advisory	GJT	Gunnison	100 min
Jul 30, 4:43 PM MDT	Areal Flood Advisory	GJT	Rio Blanco	2 hr
Jul 30, 5:02 PM MDT	Areal Flood Advisory	GJT	Rio Blanco	102 min
Jul 30, 5:22 PM MDT	Areal Flood Advisory	GJT	Eagle	97 min
Jul 30, 6:01 PM MDT	Areal Flood Advisory	BOU	Boulder, Broomfield, Weld	59 min
Jul 30, 6:08 PM MDT	Areal Flood Advisory	BOU	Adams, Denver	82 min
Jul 30, 6:48 PM MDT	Areal Flood Advisory	BOU	Douglas, Elbert	117 min
Jul 30, 7:35 PM MDT	Areal Flood Advisory	BOU	Boulder	70 min
Jul 30, 7:46 PM MDT	Areal Flood Advisory	GJT	Garfield	119 min
Jul 30, 7:52 PM MDT	Areal Flood Advisory	BOU	Boulder, Broomfield, Weld	83 min
Jul 30, 7:52 PM MDT	Areal Flood Advisory	GJT	Garfield	113 min
Jul 30, 7:53 PM MDT	Areal Flood Advisory	BOU	Larimer	68 min
Jul 30, 7:55 PM MDT	Areal Flood Advisory	GJT	Mesa, Montrose	3 hr
Jul 30, 8:19 PM MDT	Areal Flood Advisory	BOU	Douglas, Jefferson	42 min
Jul 30, 9:34 PM MDT	Areal Flood Advisory	BOU	Adams, Boulder, Broomfield, Denver, Jefferson, Weld	56 min
Jul 30, 9:35 PM MDT	Areal Flood Advisory	BOU	Clear Creek, Gilpin	3 hr
Jul 30, 10:44 PM MDT	Areal Flood Advisory	GJT	Mesa	2 hr
Jul 30, 11:14 PM MDT	Areal Flood Advisory	GJT	Mesa	3 hr
Jul 30, 11:24 PM MDT	Areal Flood Advisory	BOU	Weld	81 min
Jul 30, 11:40 PM MDT	Areal Flood Advisory	BOU	Weld	60 min
Jul 31, 12:13 AM MDT	Areal Flood Advisory	GJT	Mesa	3 hr
Jul 31, 12:30 AM MDT	Areal Flood Advisory	GJT	Moffat, Rio Blanco	3 hr
Jul 31, 3:59 AM MDT	Areal Flood Advisory	BOU	Logan, Phillips, Sedgwick	74 min
Jul 31, 12:29 PM MDT	Areal Flood Advisory	BOU	Grand	91 min
Jul 31, 12:32 PM MDT	Areal Flood Advisory	BOU	Grand	88 min
Jul 31, 12:34 PM MDT	Areal Flood Advisory	BOU	Grand	86 min
Jul 31, 12:39 PM MDT	Areal Flood Advisory	BOU	Park	81 min
Jul 31, 12:42 PM MDT	Areal Flood Advisory	BOU	Park	93 min
Jul 31, 1:05 PM MDT	Areal Flood Advisory	BOU	Larimer	85 min
Jul 31, 1:33 PM MDT	Areal Flood Advisory	BOU	Grand	87 min
Jul 31, 2:57 PM MDT	Areal Flood Advisory	BOU	Park	93 min
Jul 31, 3:29 PM MDT	Areal Flood Advisory	BOU	Boulder	91 min
Jul 31, 3:51 PM MDT	Areal Flood Advisory	BOU	Boulder	84 min
Jul 31, 4:31 PM MDT	Areal Flood Advisory	BOU	Park	89 min
Jul 31, 4:32 PM MDT	Areal Flood Advisory	GJT	Dolores, Montezuma	118 min
Jul 31, 4:42 PM MDT	Areal Flood Advisory	BOU	Park	93 min
Jul 31, 4:52 PM MDT	Areal Flood Advisory	BOU	Park	83 min
Jul 31, 5:52 PM MDT	Areal Flood Advisory	GJT	Rio Blanco	3 hr
Jul 31, 6:48 PM MDT	Areal Flood Advisory	BOU	Douglas	87 min
Aug 1, 2:49 PM MDT	Areal Flood Advisory	GJT	Garfield, Mesa	3 hr
Aug 1, 4:34 PM MDT	Areal Flood Advisory	GJT	Delta, Mesa	116 min
Aug 1, 8:37 PM MDT	Areal Flood Advisory	GJT	Garfield, Mesa	3 hr
Aug 2, 1:17 PM MDT	Areal Flood Advisory	GJT	Mesa, Montrose	118 min
Aug 2, 2:40 PM MDT	Areal Flood Advisory	BOU	Grand	95 min
Aug 2, 3:38 PM MDT	Areal Flood Advisory	BOU	Grand	82 min
Aug 2, 4:16 PM MDT	Areal Flood Advisory	BOU	Grand	89 min
Aug 2, 5:08 PM MDT	Areal Flood Advisory	BOU	Boulder, Grand	82 min
Aug 2, 5:14 PM MDT	Areal Flood Advisory	BOU	Larimer	91 min
Aug 2, 5:18 PM MDT	Areal Flood Advisory	BOU	Park	87 min
Aug 2, 5:40 PM MDT	Areal Flood Advisory	BOU	Boulder, Grand, Larimer	95 min
Aug 2, 5:57 PM MDT	Areal Flood Advisory	BOU	Larimer	93 min
Aug 2, 7:44 PM MDT	Areal Flood Advisory	GJT	Garfield, Mesa	2 hr
Aug 2, 8:21 PM MDT	Areal Flood Advisory	GJT	Mesa	114 min
Aug 3, 8:10 AM MDT	Areal Flood Advisory	BOU	Grand	3 hr
Aug 3, 9:32 AM MDT	Areal Flood Advisory	GJT	Eagle	3 hr
Aug 3, 2:22 PM MDT	Areal Flood Advisory	BOU	Douglas, Jefferson	113 min
Aug 3, 3:48 PM MDT	Areal Flood Advisory	BOU	Adams, Arapahoe, Elbert	87 min
Aug 3, 8:39 PM MDT	Areal Flood Advisory	BOU	Larimer	111 min
Aug 3, 8:51 PM MDT	Areal Flood Advisory	BOU	Boulder	114 min
Aug 3, 9:07 PM MDT	Areal Flood Advisory	BOU	Jefferson	83 min
Aug 6, 7:58 PM MDT	Areal Flood Advisory	BOU	Larimer	2 hr
Aug 6, 10:06 PM MDT	Areal Flood Advisory	BOU	Larimer	84 min
Aug 12, 10:51 PM MDT	Areal Flood Advisory	BOU	Washington	84 min
Aug 12, 11:21 PM MDT	Areal Flood Advisory	BOU	Douglas	20 min
Aug 13, 12:38 AM MDT	Areal Flood Advisory	BOU	Douglas, Jefferson	82 min
Aug 13, 1:20 PM MDT	Areal Flood Advisory	BOU	Grand	85 min
Aug 13, 1:42 PM MDT	Areal Flood Advisory	BOU	Grand	2 hr
Aug 13, 3:36 PM MDT	Areal Flood Advisory	BOU	Grand	69 min
Aug 13, 3:53 PM MDT	Areal Flood Advisory	BOU	Larimer	2 hr
Aug 13, 6:10 PM MDT	Areal Flood Advisory	BOU	Grand	99 min
Aug 14, 2:55 PM MDT	Areal Flood Advisory	BOU	Larimer	96 min
Aug 15, 2:32 PM MDT	Areal Flood Advisory	BOU	Grand	88 min
Aug 16, 4:06 PM MDT	Areal Flood Advisory	BOU	Grand	18 min
Aug 16, 5:02 PM MDT	Areal Flood Advisory	BOU	Grand	88 min
Aug 17, 2:07 PM MDT	Areal Flood Advisory	BOU	Larimer	53 min
Aug 17, 4:04 PM MDT	Areal Flood Advisory	BOU	Larimer	86 min
Aug 17, 6:35 PM MDT	Areal Flood Advisory	BOU	Jackson	85 min
Aug 18, 2:20 PM MDT	Areal Flood Advisory	GJT	Dolores, Montezuma	3 hr
Aug 18, 3:01 PM MDT	Areal Flood Advisory	BOU	Larimer	13 min
Aug 18, 4:54 PM MDT	Areal Flood Advisory	BOU	Larimer	81 min
Aug 19, 2:59 PM MDT	Areal Flood Advisory	BOU	Adams	61 min
Aug 19, 3:55 PM MDT	Areal Flood Advisory	BOU	Arapahoe, Denver, Douglas	22 min
Aug 19, 3:55 PM MDT	Areal Flood Advisory	GJT	Delta, Mesa, Montrose	3 hr
Aug 19, 3:58 PM MDT	Areal Flood Advisory	BOU	Weld	30 min
Aug 19, 4:06 PM MDT	Areal Flood Advisory	BOU	Logan	54 min
Aug 19, 4:09 PM MDT	Areal Flood Advisory	GJT	Dolores, Mesa, Montrose, San Miguel	3 hr
Aug 19, 4:10 PM MDT	Areal Flood Advisory	BOU	Phillips	95 min
Aug 19, 4:31 PM MDT	Areal Flood Advisory	GJT	Delta, Eagle, Garfield, Gunnison, Mesa, Pitkin	3 hr
Aug 19, 4:57 PM MDT	Areal Flood Advisory	BOU	Logan	50 min
Aug 19, 6:43 PM MDT	Areal Flood Advisory	BOU	Phillips	2 hr
Aug 20, 2:12 AM MDT	Areal Flood Advisory	BOU	Larimer	93 min
Sep 2, 5:04 PM MDT	Areal Flood Advisory	BOU	Grand	63 min
Sep 28, 2:59 PM MDT	Areal Flood Advisory	GJT	Mesa	89 min
Sep 28, 3:05 PM MDT	Areal Flood Advisory	GJT	Rio Blanco	115 min
Sep 29, 12:24 PM MDT	Areal Flood Advisory	GJT	Mesa	4 hr
Sep 29, 1:48 PM MDT	Areal Flood Advisory	BOU	Larimer	96 min
Sep 29, 1:59 PM MDT	Areal Flood Advisory	BOU	Boulder	114 min
Dec 22, 4:26 PM MST	Areal Flood Advisory	GJT	Eagle, Garfield, Pitkin	3 hr

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2020 2022

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.