Alert archive / Arizona / Maricopa County

Weather alerts in Maricopa County, Arizona, 2017

264 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Maricopa County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts: 264
Warnings: 105
Watches: 12
Advisories: 94
Busiest month: July101 alerts
Busiest day: August 3, 201723 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 reports fell inside a warning.

Maricopa County, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			1	0%
Severe thunderstorm warnings	41	17	59%	66	48%	16 min
Flash flood warnings	34	24	29%	41	85%	106 min

Each office's whole area, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Phoenix, AZ: tornado warnings	0			1	0%
NWS Phoenix, AZ: severe thunderstorm warnings	79	28	65%	92	49%	17 min
NWS Phoenix, AZ: flash flood warnings	75	37	51%	72	81%	86 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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 1, 6:07 AM MST	Areal Flood Advisory	PSR	3 hr
Jan 20, 8:55 PM MST	Areal Flood Advisory	PSR	6 hr
Jan 21, 1:44 AM MST	Areal Flood Advisory	PSR	3 hr
Jan 21, 9:26 AM MST	Areal Flood Advisory	PSR	3 hr
Jan 21, 12:51 PM MST	Areal Flood Advisory	PSR	10 hr
Feb 18, 9:07 PM MST	Areal Flood Advisory	PSR	3 hr
Feb 18, 11:58 PM MST	Areal Flood Advisory	PSR	6 hr
Feb 28, 4:59 AM MST	Areal Flood Advisory	PSR	3 hr
Feb 28, 6:10 AM MST	Areal Flood Advisory	PSR	5 hr
Feb 28, 7:55 AM MST	Areal Flood Warning	PSR	12 hr
Feb 28, 11:05 AM MST	River Flood Warning	PSR	24 hr
Feb 28, 11:31 AM MST	Areal Flood Warning	PSR	6 hr
Feb 28, 5:11 PM MST	Areal Flood Advisory	PSR	12 hr
Feb 28, 7:43 PM MST	Areal Flood Advisory	PSR	6 hr
Mar 22, 10:48 PM MST	Special Weather Statement	PSR	42 min
Mar 23, 1:58 AM MST	Special Weather Statement	PSR	92 min
Mar 27, 4:30 AM MST	Fire Weather Watch	PSR	8 hr
Mar 27, 12:52 PM MST	Red Flag Warning	PSR	30 hr
Mar 30, 2:56 AM MST	Red Flag Warning	PSR	17 hr
Apr 24, 4:33 AM MST	Red Flag Warning	PSR	14 hr
Apr 24, 1:59 PM MST	Red Flag Warning	PSR	31 hr
Apr 25, 3:03 AM MST	Wind Advisory	PSR	10 hr
Apr 25, 1:29 PM MST	Wind Advisory	PSR	6 hr
Apr 26, 2:12 PM MST	Fire Weather Watch	PSR	13 hr
Apr 27, 3:40 AM MST	Red Flag Warning	PSR	41 hr
Apr 27, 1:42 PM MST	Wind Advisory	PSR	30 hr
May 3, 2:15 PM MST	Fire Weather Watch	PSR	47 hr
May 5, 2:24 AM MST	Wind Advisory	PSR	47 hr
May 5, 1:32 PM MST	Red Flag Warning	PSR	30 hr
May 6, 4:15 PM MST	Blowing Dust Advisory	PSR	4 hr
May 13, 3:09 AM MST	Fire Weather Watch	PSR	11 hr
Jun 4, 3:09 AM MST	Heat Advisory	PSR	6 hr
Jun 4, 8:53 AM MST	Excessive Heat Warning	PSR	3 days
Jun 12, 2:45 AM MST	Excessive Heat Watch	PSR	75 days
Jun 14, 2:50 AM MST	Excessive Heat Warning	PSR	13 days
Jun 14, 2:50 AM MST	Heat Advisory	PSR	13 days
Jul 4, 2:07 AM MST	Excessive Heat Watch	PSR	12 hr
Jul 4, 2:13 PM MST	Excessive Heat Warning	PSR	3 days
Jul 5, 4:51 AM MST	Heat Advisory	PSR	63 hr
Jul 7, 6:54 PM MST	Special Weather Statement	PSR	36 min
Jul 8, 4:32 PM MST	Blowing Dust Advisory	PSR	2 hr
Jul 9, 11:44 AM MST	Blowing Dust Advisory	PSR	10 hr
Jul 9, 6:54 PM MST	Dust Storm Warning	PSR	64 min
Jul 10, 6:31 PM MST	Areal Flood Advisory	PSR	119 min
Jul 10, 7:27 PM MST	Special Weather Statement	PSR	48 min
Jul 10, 9:49 PM MST	Areal Flood Advisory	PSR	116 min
Jul 10, 10:02 PM MST	Blowing Dust Advisory	PSR	58 min
Jul 10, 11:08 PM MST	Areal Flood Advisory	PSR	3 hr
Jul 11, 8:04 PM MST	Areal Flood Advisory	PSR	116 min
Jul 12, 4:21 PM MST	Severe Thunderstorm Warning	PSR	24 min
Jul 12, 4:43 PM MST	Severe Thunderstorm Warning	PSR	32 min
Jul 12, 5:40 PM MST	Severe Thunderstorm Warning	PSR	35 min
Jul 12, 5:54 PM MST	Severe Thunderstorm Warning	PSR	36 min
Jul 12, 6:39 PM MST	Areal Flood Advisory	PSR	111 min
Jul 12, 6:43 PM MST	Special Weather Statement	PSR	47 min
Jul 13, 5:32 PM MST	Severe Thunderstorm Warning	PSR	28 min
Jul 14, 2:55 PM MST	Mesoscale Discussion	SPC	65 min
Jul 14, 3:48 PM MST	Severe Thunderstorm Warning	PSR	27 min
Jul 14, 4:09 PM MST	Severe Thunderstorm Warning	PSR	36 min
Jul 14, 4:23 PM MST	Severe Thunderstorm Warning	PSR	37 min
Jul 14, 4:35 PM MST	Severe Thunderstorm Watch	SPC	4 hr
Jul 14, 4:44 PM MST	Severe Thunderstorm Warning	PSR	31 min
Jul 14, 5:12 PM MST	Blowing Dust Advisory	PSR	4 hr
Jul 14, 5:22 PM MST	Special Weather Statement	PSR	38 min
Jul 14, 6:14 PM MST	Mesoscale Discussion	SPC	91 min
Jul 14, 8:29 PM MST	Severe Thunderstorm Warning	PSR	31 min
Jul 15, 3:49 PM MST	Severe Thunderstorm Warning	PSR	26 min
Jul 15, 4:55 PM MST	Special Weather Statement	PSR	50 min
Jul 15, 5:31 PM MST	Severe Thunderstorm Warning	PSR	29 min
Jul 15, 5:39 PM MST	Dust Storm Warning	PSR	2 hr
Jul 15, 5:55 PM MST	Severe Thunderstorm Warning	PSR	35 min
Jul 15, 5:57 PM MST	Special Weather Statement	PSR	48 min
Jul 15, 6:13 PM MST	Flash Flood Warning	PSR	3 hr
Jul 15, 8:00 PM MST	Special Weather Statement	PSR	45 min
Jul 15, 8:05 PM MST	Severe Thunderstorm Warning	PSR	25 min
Jul 15, 9:25 PM MST	Areal Flood Advisory	PSR	6 hr
Jul 16, 2:47 AM MST	Flash Flood Watch	PSR	43 hr
Jul 16, 1:25 PM MST	Mesoscale Discussion	SPC	65 min
Jul 16, 6:16 PM MST	Blowing Dust Advisory	PSR	104 min
Jul 16, 8:32 PM MST	Mesoscale Discussion	SPC	118 min
Jul 16, 9:12 PM MST	Severe Thunderstorm Warning	PSR	33 min
Jul 16, 9:35 PM MST	Severe Thunderstorm Warning	PSR	25 min
Jul 16, 10:06 PM MST	Severe Thunderstorm Warning	PSR	24 min
Jul 16, 10:08 PM MST	Special Weather Statement	PSR	52 min
Jul 16, 10:20 PM MST	Severe Thunderstorm Warning	PSR	25 min
Jul 16, 10:29 PM MST	Flash Flood Warning	PSR	3 hr
Jul 16, 10:33 PM MST	Special Weather Statement	PSR	72 min
Jul 16, 10:46 PM MST	Severe Thunderstorm Warning	PSR	29 min
Jul 16, 10:53 PM MST	Dust Storm Warning	PSR	88 min
Jul 16, 11:08 PM MST	Special Weather Statement	PSR	82 min
Jul 16, 11:51 PM MST	Areal Flood Advisory	PSR	3 hr
Jul 18, 9:58 AM MST	Flash Flood Watch	PSR	16 hr
Jul 18, 11:16 AM MST	Mesoscale Discussion	SPC	2 hr
Jul 18, 3:06 PM MST	Severe Thunderstorm Warning	PSR	24 min
Jul 18, 3:42 PM MST	Areal Flood Advisory	PSR	3 hr
Jul 18, 4:34 PM MST	Special Weather Statement	PSR	41 min
Jul 18, 5:43 PM MST	Flash Flood Warning	PSR	6 hr
Jul 18, 6:01 PM MST	Special Weather Statement	PSR	44 min
Jul 18, 6:06 PM MST	Severe Thunderstorm Warning	PSR	24 min
Jul 18, 6:40 PM MST	Flash Flood Warning	PSR	3 hr
Jul 18, 8:02 PM MST	Flash Flood Warning	PSR	3 hr
Jul 18, 10:22 PM MST	Areal Flood Advisory	PSR	3 hr
Jul 19, 12:05 PM MST	Mesoscale Discussion	SPC	2 hr
Jul 19, 1:10 PM MST	Special Weather Statement	PSR	50 min
Jul 19, 2:34 PM MST	Special Weather Statement	PSR	26 min
Jul 19, 10:56 PM MST	Areal Flood Warning	PSR	6 hr
Jul 20, 4:52 AM MST	Areal Flood Warning	PSR	3 hr
Jul 20, 8:44 PM MST	Areal Flood Advisory	PSR	61 min
Jul 21, 2:23 PM MST	Areal Flood Advisory	PSR	112 min
Jul 21, 6:03 PM MST	Special Weather Statement	PSR	27 min
Jul 21, 6:14 PM MST	Areal Flood Advisory	PSR	2 hr
Jul 21, 6:18 PM MST	Areal Flood Advisory	PSR	3 hr
Jul 21, 6:29 PM MST	Flash Flood Warning	PSR	3 hr
Jul 22, 3:52 PM MST	Areal Flood Advisory	PSR	113 min
Jul 23, 10:36 AM MST	Flash Flood Watch	PSR	13 hr
Jul 23, 6:51 PM MST	Special Weather Statement	PSR	24 min
Jul 23, 7:10 PM MST	Flash Flood Warning	PSR	3 hr
Jul 23, 7:17 PM MST	Special Weather Statement	PSR	28 min
Jul 23, 7:44 PM MST	Flash Flood Warning	PSR	3 hr
Jul 24, 5:54 AM MST	Areal Flood Advisory	PSR	3 hr
Jul 24, 7:19 AM MST	Flash Flood Warning	PSR	3 hr
Jul 24, 8:08 AM MST	Areal Flood Advisory	PSR	4 hr
Jul 24, 8:13 AM MST	Areal Flood Advisory	PSR	3 hr
Jul 24, 8:59 AM MST	Flash Flood Warning	PSR	3 hr
Jul 24, 10:08 AM MST	Flash Flood Warning	PSR	3 hr
Jul 24, 11:10 AM MST	Areal Flood Advisory	PSR	3 hr
Jul 24, 11:52 AM MST	Flash Flood Warning	PSR	3 hr
Jul 24, 12:22 PM MST	Flash Flood Warning	PSR	6 hr
Jul 24, 2:39 PM MST	Flash Flood Warning	PSR	3 hr
Jul 28, 9:14 PM MST	Areal Flood Advisory	PSR	3 hr
Jul 29, 4:19 PM MST	Special Weather Statement	PSR	41 min
Jul 29, 4:48 PM MST	Areal Flood Advisory	PSR	117 min
Jul 29, 5:00 PM MST	Special Weather Statement	PSR	45 min
Jul 29, 5:12 PM MST	Areal Flood Advisory	PSR	3 hr
Jul 29, 5:38 PM MST	Special Weather Statement	PSR	52 min
Jul 29, 6:15 PM MST	Dust Storm Warning	PSR	45 min
Jul 29, 7:16 PM MST	Areal Flood Advisory	PSR	119 min
Jul 31, 5:19 PM MST	Areal Flood Advisory	PSR	116 min
Jul 31, 6:15 PM MST	Areal Flood Advisory	PSR	2 hr
Aug 1, 5:05 PM MST	Blowing Dust Advisory	PSR	3 hr
Aug 1, 5:26 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 1, 5:45 PM MST	Severe Thunderstorm Warning	PSR	30 min
Aug 1, 6:26 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 1, 6:48 PM MST	Flash Flood Warning	PSR	3 hr
Aug 2, 5:07 PM MST	Flash Flood Warning	PSR	3 hr
Aug 2, 9:51 PM MST	Areal Flood Warning	PSR	3 hr
Aug 3, 2:42 PM MST	Severe Thunderstorm Warning	PSR	33 min
Aug 3, 2:48 PM MST	Flash Flood Warning	PSR	6 hr
Aug 3, 2:59 PM MST	Blowing Dust Advisory	PSR	2 hr
Aug 3, 3:18 PM MST	Special Weather Statement	PSR	27 min
Aug 3, 3:20 PM MST	Severe Thunderstorm Warning	PSR	25 min
Aug 3, 3:39 PM MST	Special Weather Statement	PSR	51 min
Aug 3, 3:42 PM MST	Special Weather Statement	PSR	48 min
Aug 3, 3:49 PM MST	Severe Thunderstorm Warning	PSR	26 min
Aug 3, 4:02 PM MST	Special Weather Statement	PSR	43 min
Aug 3, 4:12 PM MST	Severe Thunderstorm Warning	PSR	33 min
Aug 3, 4:15 PM MST	Severe Thunderstorm Warning	PSR	30 min
Aug 3, 4:23 PM MST	Special Weather Statement	PSR	52 min
Aug 3, 4:24 PM MST	Special Weather Statement	PSR	51 min
Aug 3, 4:31 PM MST	Special Weather Statement	PSR	44 min
Aug 3, 4:36 PM MST	Severe Thunderstorm Warning	PSR	24 min
Aug 3, 4:44 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 3, 4:46 PM MST	Severe Thunderstorm Warning	PSR	29 min
Aug 3, 4:49 PM MST	Special Weather Statement	PSR	41 min
Aug 3, 4:55 PM MST	Flash Flood Warning	PSR	3 hr
Aug 3, 4:56 PM MST	Severe Thunderstorm Warning	PSR	34 min
Aug 3, 4:58 PM MST	Severe Thunderstorm Warning	PSR	32 min
Aug 3, 5:02 PM MST	Severe Thunderstorm Warning	PSR	28 min
Aug 3, 5:06 PM MST	Severe Thunderstorm Warning	PSR	24 min
Aug 3, 5:17 PM MST	Blowing Dust Advisory	PSR	103 min
Aug 3, 5:19 PM MST	Flash Flood Warning	PSR	3 hr
Aug 3, 5:27 PM MST	Severe Thunderstorm Warning	PSR	48 min
Aug 3, 5:28 PM MST	Flash Flood Warning	PSR	3 hr
Aug 3, 6:03 PM MST	Flash Flood Warning	PSR	3 hr
Aug 3, 6:58 PM MST	Flash Flood Warning	PSR	3 hr
Aug 3, 8:00 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 3, 8:03 PM MST	Areal Flood Warning	PSR	3 hr
Aug 3, 8:21 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 3, 8:28 PM MST	Areal Flood Warning	PSR	3 hr
Aug 3, 8:31 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 3, 9:21 PM MST	Areal Flood Warning	PSR	3 hr
Aug 4, 7:01 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 4, 9:06 PM MST	Areal Flood Advisory	PSR	4 hr
Aug 10, 5:49 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 10, 5:53 PM MST	Flash Flood Warning	PSR	2 hr
Aug 10, 7:54 PM MST	Areal Flood Warning	PSR	3 hr
Aug 10, 8:26 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 10, 9:13 PM MST	Areal Flood Warning	PSR	4 hr
Aug 10, 9:43 PM MST	Special Weather Statement	PSR	47 min
Aug 10, 10:06 PM MST	Areal Flood Advisory	PSR	4 hr
Aug 10, 10:46 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 11, 5:23 AM MST	Areal Flood Advisory	PSR	3 hr
Aug 11, 8:28 AM MST	Areal Flood Advisory	PSR	2 hr
Aug 12, 3:46 AM MST	Special Weather Statement	PSR	44 min
Aug 12, 3:58 AM MST	Special Weather Statement	PSR	47 min
Aug 12, 4:21 AM MST	Areal Flood Advisory	PSR	114 min
Aug 12, 4:23 AM MST	Areal Flood Advisory	PSR	4 hr
Aug 12, 4:43 AM MST	Special Weather Statement	PSR	47 min
Aug 12, 4:44 AM MST	Special Weather Statement	PSR	46 min
Aug 12, 7:02 AM MST	Areal Flood Advisory	PSR	118 min
Aug 12, 8:45 AM MST	Flash Flood Warning	PSR	6 hr
Aug 12, 7:37 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 12, 7:50 PM MST	Special Weather Statement	PSR	55 min
Aug 12, 9:10 PM MST	Special Weather Statement	PSR	65 min
Aug 12, 9:27 PM MST	Areal Flood Advisory	PSR	5 hr
Aug 12, 9:55 PM MST	Severe Thunderstorm Warning	PSR	50 min
Aug 12, 10:12 PM MST	Flash Flood Warning	PSR	3 hr
Aug 12, 10:26 PM MST	Severe Thunderstorm Warning	PSR	49 min
Aug 12, 10:38 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 12, 10:45 PM MST	Flash Flood Warning	PSR	4 hr
Aug 12, 11:34 PM MST	Flash Flood Warning	PSR	3 hr
Aug 13, 12:03 AM MST	Areal Flood Advisory	PSR	3 hr
Aug 13, 1:32 AM MST	Areal Flood Advisory	PSR	118 min
Aug 13, 1:59 AM MST	Flash Flood Warning	PSR	5 hr
Aug 13, 2:29 AM MST	Flash Flood Warning	PSR	5 hr
Aug 13, 2:51 AM MST	Areal Flood Advisory	PSR	3 hr
Aug 13, 4:34 AM MST	Areal Flood Advisory	PSR	3 hr
Aug 13, 5:41 AM MST	Flash Flood Warning	PSR	3 hr
Aug 13, 6:44 AM MST	Areal Flood Warning	PSR	3 hr
Aug 14, 1:03 AM MST	Severe Thunderstorm Warning	PSR	42 min
Aug 14, 1:29 AM MST	Flash Flood Warning	PSR	3 hr
Aug 14, 2:14 AM MST	Areal Flood Advisory	PSR	3 hr
Aug 23, 3:01 PM MST	Blowing Dust Advisory	PSR	5 hr
Aug 23, 3:30 PM MST	Special Weather Statement	PSR	45 min
Aug 23, 3:37 PM MST	Severe Thunderstorm Warning	PSR	38 min
Aug 23, 5:25 PM MST	Areal Flood Advisory	PSR	110 min
Aug 23, 7:12 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 23, 7:38 PM MST	Special Weather Statement	PSR	37 min
Aug 23, 8:19 PM MST	Special Weather Statement	PSR	26 min
Aug 23, 9:45 PM MST	Areal Flood Advisory	PSR	2 hr
Aug 24, 12:26 AM MST	Special Weather Statement	PSR	19 min
Aug 26, 2:50 AM MST	Excessive Heat Warning	PSR	5 days
Aug 26, 4:37 PM MST	Areal Flood Advisory	PSR	3 hr
Aug 26, 5:45 PM MST	Blowing Dust Advisory	PSR	68 min
Aug 27, 4:39 PM MST	Blowing Dust Advisory	PSR	2 hr
Aug 27, 5:44 PM MST	Severe Thunderstorm Warning	PSR	31 min
Sep 2, 5:10 PM MST	Flash Flood Warning	PSR	3 hr
Sep 4, 3:10 PM MST	Mesoscale Discussion	SPC	3 hr
Sep 5, 6:45 PM MST	Severe Thunderstorm Warning	PSR	30 min
Sep 5, 6:59 PM MST	Special Weather Statement	PSR	31 min
Sep 5, 7:40 PM MST	Areal Flood Advisory	PSR	3 hr
Sep 7, 11:26 AM MST	Blowing Dust Advisory	PSR	9 hr
Sep 7, 2:10 PM MST	Flash Flood Watch	PSR	54 hr
Sep 7, 4:56 PM MST	Special Weather Statement	PSR	49 min
Sep 7, 6:22 PM MST	Dust Storm Warning	PSR	98 min
Sep 7, 7:49 PM MST	Special Weather Statement	PSR	26 min
Sep 7, 8:21 PM MST	Severe Thunderstorm Warning	PSR	24 min
Sep 8, 1:09 PM MST	Blowing Dust Advisory	PSR	7 hr
Sep 8, 7:25 PM MST	Areal Flood Advisory	PSR	3 hr
Sep 8, 7:54 PM MST	Flash Flood Warning	PSR	3 hr
Sep 8, 11:22 PM MST	Special Weather Statement	PSR	38 min
Sep 9, 12:03 AM MST	Areal Flood Advisory	PSR	3 hr
Sep 9, 12:40 AM MST	Flash Flood Warning	PSR	3 hr
Sep 9, 12:43 AM MST	Special Weather Statement	PSR	47 min
Sep 9, 6:11 AM MST	Areal Flood Advisory	PSR	2 hr
Sep 13, 5:50 PM MST	Areal Flood Advisory	PSR	3 hr
Sep 14, 2:43 PM MST	Blowing Dust Advisory	PSR	4 hr
Dec 7, 3:26 AM MST	Freeze Warning	PSR	30 hr
Dec 7, 3:26 AM MST	Wind Advisory	PSR	10 hr
Dec 7, 3:28 AM MST	Red Flag Warning	PSR	13 hr
Dec 10, 2:57 AM MST	Wind Advisory	PSR	10 hr
Dec 19, 3:41 AM MST	Freeze Watch	PSR	35 hr
Dec 20, 2:22 PM MST	Freeze Warning	PSR	43 hr
Dec 21, 11:28 AM MST	Blowing Dust Advisory	PSR	6 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	41
Severe Thunderstorm Watch	1
Mesoscale Discussion	7
Special Weather Statement	46
Flooding
Areal Flood Warning	11
Flash Flood Warning	34
River Flood Warning	1
Flash Flood Watch	4
Areal Flood Advisory	69
Heat
Excessive Heat Warning	4
Excessive Heat Watch	2
Heat Advisory	3
Cold
Freeze Warning	2
Freeze Watch	1
Wind and dust
Dust Storm Warning	5
Blowing Dust Advisory	16
Wind Advisory	6
Fire
Red Flag Warning	7
Fire Weather Watch	4

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2016 2018

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.