Alert archive / Arizona / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Arizona, 1998

258 severe thunderstorm warnings in 1998. 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 severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

Each county as a circle sized by its count in 1998. Tap one for its archive.

Severe Thunderstorm Warnings: 258
Busiest month: August110 severe thunderstorm warnings
Busiest day: July 18, 199820 severe thunderstorm warnings

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
Feb 15, 5:09 AM MST	Severe Thunderstorm Warning	TWC	Pima	61 min
Feb 24, 12:22 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	33 min
Feb 24, 2:25 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	50 min
Feb 24, 2:25 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	35 min
Feb 24, 2:37 PM MST	Severe Thunderstorm Warning	TWC	Pima	33 min
Feb 24, 2:59 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	46 min
Feb 24, 3:14 PM MST	Severe Thunderstorm Warning	TWC	Pima, Pinal	51 min
Mar 6, 7:35 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	30 min
Mar 28, 11:35 AM MST	Severe Thunderstorm Warning	VEF	Mohave	45 min
Jun 10, 3:44 PM MST	Severe Thunderstorm Warning	TWC	Cochise	51 min
Jun 10, 4:55 PM MST	Severe Thunderstorm Warning	TWC	Cochise	45 min
Jul 1, 4:00 PM MST	Severe Thunderstorm Warning	TWC	Greenlee	50 min
Jul 4, 6:02 PM MST	Severe Thunderstorm Warning	TWC	Pima	48 min
Jul 7, 2:11 PM MST	Severe Thunderstorm Warning	PSR	Gila, Maricopa	64 min
Jul 7, 2:57 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	63 min
Jul 7, 3:16 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	59 min
Jul 7, 5:27 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	53 min
Jul 8, 3:15 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	50 min
Jul 8, 4:17 PM MST	Severe Thunderstorm Warning	FGZ	Gila	48 min
Jul 8, 5:00 PM MST	Severe Thunderstorm Warning	FGZ	Gila	35 min
Jul 8, 5:55 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	45 min
Jul 13, 5:05 PM MST	Severe Thunderstorm Warning	TWC	Cochise	50 min
Jul 16, 2:55 PM MST	Severe Thunderstorm Warning	TWC	Greenlee	50 min
Jul 16, 4:11 PM MST	Severe Thunderstorm Warning	TWC	Greenlee	59 min
Jul 16, 7:45 PM MST	Severe Thunderstorm Warning	PSR	Pinal	60 min
Jul 16, 8:09 PM MST	Severe Thunderstorm Warning	PSR	Pinal	51 min
Jul 16, 8:16 PM MST	Severe Thunderstorm Warning	TWC	Pinal	64 min
Jul 16, 8:31 PM MST	Severe Thunderstorm Warning	TWC	Pima, Pinal	49 min
Jul 17, 3:49 PM MST	Severe Thunderstorm Warning	FGZ	Gila	46 min
Jul 17, 4:14 PM MST	Severe Thunderstorm Warning	PSR	Gila, Maricopa	66 min
Jul 17, 4:45 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	75 min
Jul 17, 5:20 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	50 min
Jul 17, 5:41 PM MST	Severe Thunderstorm Warning	TWC	Pima	49 min
Jul 17, 6:01 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	69 min
Jul 17, 6:25 PM MST	Severe Thunderstorm Warning	TWC	Pima	60 min
Jul 17, 7:25 PM MST	Severe Thunderstorm Warning	TWC	Pima	45 min
Jul 17, 7:33 PM MST	Severe Thunderstorm Warning	TWC	Greenlee	47 min
Jul 17, 8:09 PM MST	Severe Thunderstorm Warning	TWC	Pima	61 min
Jul 17, 8:17 PM MST	Severe Thunderstorm Warning	TWC	Graham	48 min
Jul 17, 9:15 PM MST	Severe Thunderstorm Warning	PSR	Gila, Maricopa	80 min
Jul 17, 9:41 PM MST	Severe Thunderstorm Warning	PSR	Yuma	64 min
Jul 17, 9:53 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	52 min
Jul 17, 10:41 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	64 min
Jul 17, 11:14 PM MST	Severe Thunderstorm Warning	TWC	Pinal	46 min
Jul 17, 11:23 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	52 min
Jul 18, 12:15 AM MST	Severe Thunderstorm Warning	TWC	Pima	90 min
Jul 18, 1:44 AM MST	Severe Thunderstorm Warning	TWC	Pima	46 min
Jul 18, 1:37 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	48 min
Jul 18, 2:08 PM MST	Severe Thunderstorm Warning	TWC	Pima, Santa Cruz	62 min
Jul 18, 2:44 PM MST	Severe Thunderstorm Warning	TWC	Pima	46 min
Jul 18, 3:25 PM MST	Severe Thunderstorm Warning	TWC	Pima	45 min
Jul 18, 5:46 PM MST	Severe Thunderstorm Warning	TWC	Pima	64 min
Jul 18, 6:23 PM MST	Severe Thunderstorm Warning	VEF	Mohave	47 min
Jul 19, 1:28 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	47 min
Jul 19, 1:57 PM MST	Severe Thunderstorm Warning	FGZ	Gila	48 min
Jul 19, 2:33 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	47 min
Jul 19, 3:14 PM MST	Severe Thunderstorm Warning	TWC	Graham, Greenlee	46 min
Jul 19, 3:37 PM MST	Severe Thunderstorm Warning	FGZ	Gila, Navajo	48 min
Jul 19, 3:53 PM MST	Severe Thunderstorm Warning	TWC	Cochise	47 min
Jul 19, 4:04 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	51 min
Jul 19, 4:05 PM MST	Severe Thunderstorm Warning	PSR	Gila	65 min
Jul 19, 4:21 PM MST	Severe Thunderstorm Warning	FGZ	Navajo	49 min
Jul 19, 4:37 PM MST	Severe Thunderstorm Warning	FGZ	Gila	48 min
Jul 19, 4:50 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	50 min
Jul 19, 5:20 PM MST	Severe Thunderstorm Warning	FGZ	Gila	45 min
Jul 19, 5:40 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	50 min
Jul 19, 5:59 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	46 min
Jul 19, 6:07 PM MST	Severe Thunderstorm Warning	FGZ	Gila	48 min
Jul 19, 6:48 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	62 min
Jul 19, 6:52 PM MST	Severe Thunderstorm Warning	TWC	Pima	68 min
Jul 19, 7:58 PM MST	Severe Thunderstorm Warning	TWC	Pima	32 min
Jul 19, 8:47 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	48 min
Jul 19, 9:22 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	48 min
Jul 19, 10:23 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	47 min
Jul 19, 10:36 PM MST	Severe Thunderstorm Warning	VEF	Mohave	59 min
Jul 19, 11:39 PM MST	Severe Thunderstorm Warning	VEF	Mohave	81 min
Jul 20, 12:53 AM MST	Severe Thunderstorm Warning	VEF	Mohave	57 min
Jul 20, 12:36 PM MST	Severe Thunderstorm Warning	TWC	Pima	64 min
Jul 20, 5:51 PM MST	Severe Thunderstorm Warning	PSR	Pinal	39 min
Jul 20, 7:07 PM MST	Severe Thunderstorm Warning	VEF	Mohave	58 min
Jul 20, 7:14 PM MST	Severe Thunderstorm Warning	FGZ	Gila	46 min
Jul 20, 8:04 PM MST	Severe Thunderstorm Warning	FGZ	Gila	46 min
Jul 20, 8:40 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	45 min
Jul 21, 5:28 PM MST	Severe Thunderstorm Warning	FGZ	Navajo	47 min
Jul 21, 5:33 PM MST	Severe Thunderstorm Warning	VEF	Mohave	62 min
Jul 21, 6:15 PM MST	Severe Thunderstorm Warning	FGZ	Navajo	50 min
Jul 21, 6:52 PM MST	Severe Thunderstorm Warning	VEF	Mohave	88 min
Jul 21, 7:05 PM MST	Severe Thunderstorm Warning	FGZ	Navajo	30 min
Jul 22, 11:55 AM MST	Severe Thunderstorm Warning	FGZ	Coconino	50 min
Jul 22, 2:27 PM MST	Severe Thunderstorm Warning	PSR	La Paz	48 min
Jul 22, 2:43 PM MST	Severe Thunderstorm Warning	TWC	Graham, Greenlee	62 min
Jul 22, 3:45 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Graham	50 min
Jul 22, 6:32 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	63 min
Jul 22, 7:14 PM MST	Severe Thunderstorm Warning	PSR	La Paz	61 min
Jul 23, 2:18 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	47 min
Jul 23, 5:00 PM MST	Severe Thunderstorm Warning	PSR	Yuma	60 min
Jul 23, 9:05 PM MST	Severe Thunderstorm Warning	TWC	Pima	45 min
Jul 24, 1:23 PM MST	Severe Thunderstorm Warning	TWC	Cochise	47 min
Jul 24, 1:59 PM MST	Severe Thunderstorm Warning	TWC	Cochise	46 min
Jul 28, 5:53 PM MST	Severe Thunderstorm Warning	TWC	Cochise	47 min
Jul 28, 6:38 PM MST	Severe Thunderstorm Warning	TWC	Cochise	47 min
Jul 28, 7:22 PM MST	Severe Thunderstorm Warning	TWC	Pima	63 min
Jul 29, 4:13 PM MST	Severe Thunderstorm Warning	TWC	Cochise	32 min
Jul 29, 4:38 PM MST	Severe Thunderstorm Warning	VEF	Mohave	57 min
Jul 29, 5:08 PM MST	Severe Thunderstorm Warning	TWC	Cochise	47 min
Jul 31, 2:29 PM MST	Severe Thunderstorm Warning	FGZ	Navajo	46 min
Jul 31, 2:29 PM MST	Severe Thunderstorm Warning	FGZ	Apache	46 min
Jul 31, 5:18 PM MST	Severe Thunderstorm Warning	TWC	Cochise	47 min
Jul 31, 11:39 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	61 min
Aug 1, 1:18 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	52 min
Aug 1, 3:53 PM MST	Severe Thunderstorm Warning	TWC	Pima	47 min
Aug 2, 6:05 PM MST	Severe Thunderstorm Warning	TWC	Pinal	30 min
Aug 2, 6:22 PM MST	Severe Thunderstorm Warning	PSR	Gila	48 min
Aug 3, 3:46 PM MST	Severe Thunderstorm Warning	TWC	Cochise	34 min
Aug 3, 5:03 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	32 min
Aug 5, 3:40 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	35 min
Aug 5, 4:39 PM MST	Severe Thunderstorm Warning	PSR	Pinal	46 min
Aug 5, 5:43 PM MST	Severe Thunderstorm Warning	TWC	Pima	62 min
Aug 5, 5:56 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	49 min
Aug 5, 6:38 PM MST	Severe Thunderstorm Warning	TWC	Pima	52 min
Aug 5, 7:20 PM MST	Severe Thunderstorm Warning	TWC	Pima, Santa Cruz	75 min
Aug 5, 11:19 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	61 min
Aug 5, 11:56 PM MST	Severe Thunderstorm Warning	TWC	Pinal	49 min
Aug 6, 12:18 AM MST	Severe Thunderstorm Warning	PSR	Maricopa	62 min
Aug 6, 12:52 AM MST	Severe Thunderstorm Warning	PSR	Maricopa	63 min
Aug 6, 1:23 AM MST	Severe Thunderstorm Warning	PSR	Maricopa	92 min
Aug 6, 2:44 AM MST	Severe Thunderstorm Warning	TWC	Pima	61 min
Aug 6, 11:50 AM MST	Severe Thunderstorm Warning	FGZ	Gila, Navajo	50 min
Aug 6, 11:59 AM MST	Severe Thunderstorm Warning	FGZ	Coconino	61 min
Aug 6, 1:58 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	62 min
Aug 6, 2:59 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	46 min
Aug 6, 3:53 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	47 min
Aug 6, 4:30 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	50 min
Aug 6, 4:55 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	50 min
Aug 6, 4:57 PM MST	Severe Thunderstorm Warning	PSR	Pinal	48 min
Aug 6, 4:57 PM MST	Severe Thunderstorm Warning	PSR	Gila, Pinal	63 min
Aug 6, 5:17 PM MST	Severe Thunderstorm Warning	FGZ	Gila	48 min
Aug 6, 6:08 PM MST	Severe Thunderstorm Warning	FGZ	Gila	47 min
Aug 6, 6:19 PM MST	Severe Thunderstorm Warning	PSR	La Paz	61 min
Aug 6, 7:22 PM MST	Severe Thunderstorm Warning	PSR	La Paz	53 min
Aug 7, 1:30 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	45 min
Aug 7, 3:07 PM MST	Severe Thunderstorm Warning	VEF	Mohave	58 min
Aug 7, 5:20 PM MST	Severe Thunderstorm Warning	TWC	Pima	45 min
Aug 7, 5:27 PM MST	Severe Thunderstorm Warning	PSR	Gila	63 min
Aug 7, 5:35 PM MST	Severe Thunderstorm Warning	TWC	Pima	45 min
Aug 7, 6:06 PM MST	Severe Thunderstorm Warning	TWC	Pima	44 min
Aug 7, 7:17 PM MST	Severe Thunderstorm Warning	PSR	Yuma	58 min
Aug 7, 9:11 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	64 min
Aug 7, 10:15 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	75 min
Aug 8, 3:30 AM MST	Severe Thunderstorm Warning	VEF	Mohave	45 min
Aug 8, 6:29 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	61 min
Aug 9, 3:41 PM MST	Severe Thunderstorm Warning	TWC	Pinal	49 min
Aug 9, 5:40 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Pima	45 min
Aug 9, 6:26 PM MST	Severe Thunderstorm Warning	TWC	Pima	49 min
Aug 9, 7:14 PM MST	Severe Thunderstorm Warning	TWC	Pima	46 min
Aug 10, 3:21 PM MST	Severe Thunderstorm Warning	TWC	Cochise	49 min
Aug 11, 2:56 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	64 min
Aug 11, 4:22 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	33 min
Aug 11, 5:42 PM MST	Severe Thunderstorm Warning	TWC	Pima	48 min
Aug 11, 6:30 PM MST	Severe Thunderstorm Warning	TWC	Pima	45 min
Aug 11, 6:47 PM MST	Severe Thunderstorm Warning	TWC	Pima	33 min
Aug 11, 7:09 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	46 min
Aug 11, 7:25 PM MST	Severe Thunderstorm Warning	PSR	Pinal	45 min
Aug 11, 8:18 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	62 min
Aug 11, 9:11 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	64 min
Aug 12, 2:15 PM MST	Severe Thunderstorm Warning	FGZ	Gila	50 min
Aug 12, 3:50 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	50 min
Aug 12, 6:07 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	48 min
Aug 12, 6:10 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	45 min
Aug 12, 6:55 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	50 min
Aug 12, 7:42 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	48 min
Aug 12, 8:29 PM MST	Severe Thunderstorm Warning	PSR	La Paz	46 min
Aug 12, 10:43 PM MST	Severe Thunderstorm Warning	PSR	Yuma	92 min
Aug 13, 2:35 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	65 min
Aug 13, 2:56 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	34 min
Aug 13, 3:32 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	33 min
Aug 13, 4:12 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	48 min
Aug 13, 4:16 PM MST	Severe Thunderstorm Warning	VEF	Mohave	54 min
Aug 13, 4:46 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	49 min
Aug 13, 5:17 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	63 min
Aug 13, 5:49 PM MST	Severe Thunderstorm Warning	VEF	Mohave	56 min
Aug 13, 6:14 PM MST	Severe Thunderstorm Warning	TWC	Pima	36 min
Aug 13, 7:28 PM MST	Severe Thunderstorm Warning	PSR	La Paz	47 min
Aug 13, 9:01 PM MST	Severe Thunderstorm Warning	TWC	Pinal	49 min
Aug 13, 9:04 PM MST	Severe Thunderstorm Warning	PSR	Pinal	46 min
Aug 14, 4:00 PM MST	Severe Thunderstorm Warning	TWC	Pima, Pinal	45 min
Aug 14, 5:23 PM MST	Severe Thunderstorm Warning	VEF	Mohave	52 min
Aug 14, 6:01 PM MST	Severe Thunderstorm Warning	TWC	Cochise	49 min
Aug 14, 8:48 PM MST	Severe Thunderstorm Warning	VEF	Mohave	72 min
Aug 15, 3:36 PM MST	Severe Thunderstorm Warning	PSR	La Paz	49 min
Aug 15, 5:19 PM MST	Severe Thunderstorm Warning	PSR	Gila	61 min
Aug 15, 6:56 PM MST	Severe Thunderstorm Warning	PSR	Pinal	49 min
Aug 15, 7:29 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	66 min
Aug 15, 7:48 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	62 min
Aug 17, 1:26 PM MST	Severe Thunderstorm Warning	FGZ	Navajo	34 min
Aug 17, 1:57 PM MST	Severe Thunderstorm Warning	PSR	Gila	43 min
Aug 21, 7:01 PM MST	Severe Thunderstorm Warning	TWC	Pima	34 min
Aug 23, 1:46 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	34 min
Aug 23, 3:02 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	33 min
Aug 24, 8:01 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	49 min
Aug 28, 2:11 PM MST	Severe Thunderstorm Warning	TWC	Greenlee	29 min
Aug 28, 3:06 PM MST	Severe Thunderstorm Warning	TWC	Pima	64 min
Aug 28, 3:23 PM MST	Severe Thunderstorm Warning	TWC	Graham	62 min
Aug 28, 4:25 PM MST	Severe Thunderstorm Warning	TWC	Pinal	65 min
Aug 28, 4:37 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Pima	63 min
Aug 28, 4:59 PM MST	Severe Thunderstorm Warning	PSR	Pinal	46 min
Aug 28, 5:03 PM MST	Severe Thunderstorm Warning	TWC	Pima	37 min
Aug 28, 5:38 PM MST	Severe Thunderstorm Warning	TWC	Pima, Pinal	62 min
Aug 28, 5:38 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	62 min
Aug 28, 5:39 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	31 min
Aug 28, 6:04 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	86 min
Aug 28, 6:44 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	46 min
Aug 29, 5:55 PM MST	Severe Thunderstorm Warning	VEF	Mohave	60 min
Aug 30, 12:53 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	47 min
Aug 30, 4:35 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	35 min
Aug 30, 4:59 PM MST	Severe Thunderstorm Warning	VEF	Mohave	61 min
Aug 30, 10:06 PM MST	Severe Thunderstorm Warning	VEF	Mohave	39 min
Aug 31, 9:08 PM MST	Severe Thunderstorm Warning	PSR	La Paz	47 min
Sep 1, 3:37 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	33 min
Sep 2, 6:45 PM MST	Severe Thunderstorm Warning	PSR	La Paz	50 min
Sep 4, 7:00 PM MST	Severe Thunderstorm Warning	PSR	Yuma	60 min
Sep 5, 11:33 AM MST	Severe Thunderstorm Warning	FGZ	Coconino	47 min
Sep 5, 2:17 PM MST	Severe Thunderstorm Warning	TWC	Pima	48 min
Sep 5, 3:03 PM MST	Severe Thunderstorm Warning	TWC	Pima	62 min
Sep 5, 3:53 PM MST	Severe Thunderstorm Warning	TWC	Pinal	62 min
Sep 5, 4:58 PM MST	Severe Thunderstorm Warning	PSR	Gila, Pinal	52 min
Sep 6, 4:10 PM MST	Severe Thunderstorm Warning	TWC	Pima	50 min
Sep 6, 5:01 PM MST	Severe Thunderstorm Warning	PSR	Pinal	59 min
Sep 6, 5:52 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	53 min
Sep 9, 2:34 PM MST	Severe Thunderstorm Warning	VEF	Mohave	61 min
Sep 9, 4:14 PM MST	Severe Thunderstorm Warning	VEF	Mohave	56 min
Sep 9, 4:52 PM MST	Severe Thunderstorm Warning	TWC	Pima	48 min
Sep 9, 5:02 PM MST	Severe Thunderstorm Warning	PSR	La Paz	58 min
Sep 9, 5:24 PM MST	Severe Thunderstorm Warning	VEF	Mohave	36 min
Sep 9, 5:31 PM MST	Severe Thunderstorm Warning	VEF	Mohave	44 min
Sep 9, 6:51 PM MST	Severe Thunderstorm Warning	PSR	Pinal	69 min
Sep 10, 4:39 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Yuma	46 min
Sep 10, 7:28 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	32 min
Sep 11, 5:50 AM MST	Severe Thunderstorm Warning	VEF	Mohave	60 min
Sep 11, 2:30 PM MST	Severe Thunderstorm Warning	VEF	Mohave	105 min
Sep 11, 4:28 PM MST	Severe Thunderstorm Warning	VEF	Mohave	92 min
Sep 12, 2:36 PM MST	Severe Thunderstorm Warning	VEF	Mohave	64 min
Oct 22, 2:55 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	30 min
Oct 22, 3:27 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	28 min
Oct 22, 3:27 PM MST	Severe Thunderstorm Warning	FGZ	Navajo	28 min
Oct 25, 7:32 AM MST	Severe Thunderstorm Warning	PSR	Maricopa	38 min
Oct 25, 7:39 AM MST	Severe Thunderstorm Warning	FGZ	Gila	31 min
Oct 25, 8:15 AM MST	Severe Thunderstorm Warning	FGZ	Navajo	30 min
Oct 25, 10:21 AM MST	Severe Thunderstorm Warning	PSR	Gila, Maricopa	39 min
Oct 25, 10:50 AM MST	Severe Thunderstorm Warning	FGZ	Gila	40 min
Oct 25, 1:44 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	31 min
Oct 25, 1:46 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	49 min
Oct 25, 3:07 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	33 min
Oct 25, 3:42 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	28 min
Oct 25, 3:52 PM MST	Severe Thunderstorm Warning	FGZ	Gila	48 min
Oct 25, 4:12 PM MST	Severe Thunderstorm Warning	PSR	Gila	18 min
Oct 25, 4:17 PM MST	Severe Thunderstorm Warning	FGZ	Gila	48 min
Oct 26, 11:35 PM MST	Severe Thunderstorm Warning	TWC	Cochise	45 min

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 1997 1999

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.