Weather alerts in Knox County, Indiana, 2022

158 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Knox County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts: 158
Warnings: 79
Watches: 19
Advisories: 25
Busiest month: May34 alerts
Busiest day: May 20, 202210 alerts

Over time

By month

Warning verification

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

1 of 1 tornado warnings covering Knox County in 2022 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 16 minutes after it went out.

Knox County, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	1	0%	1	100%	16 min
Severe thunderstorm warnings	16	9	44%	13	69%	25 min
Flash flood warnings	2	2	0%	6	100%	49 min

Each office's whole area, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Indianapolis, IN: tornado warnings	19	2	89%	11	27%	19 min
NWS Indianapolis, IN: severe thunderstorm warnings	116	65	44%	158	71%	18 min
NWS Indianapolis, IN: flash flood warnings	12	9	25%	16	94%	73 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 2, 9:15 PM EST	River Flood Warning	IND	8 days
Jan 8, 1:41 PM EST	Mesoscale Discussion	SPC	4 hr
Jan 8, 2:26 PM EST	Winter Weather Advisory	IND	8 hr
Jan 31, 3:49 AM EST	Winter Storm Watch	IND	35 hr
Feb 1, 3:52 AM EST	Winter Storm Warning	IND	69 hr
Feb 3, 3:21 AM EST	Mesoscale Discussion	SPC	6 hr
Feb 4, 12:48 AM EST	Winter Weather Advisory	IND	6 hr
Feb 15, 3:17 AM EST	Flood Watch	IND	64 hr
Feb 15, 3:38 PM EST	Wind Advisory	IND	27 hr
Feb 16, 11:39 AM EST	River Flood Warning	IND	29 days
Feb 16, 11:39 AM EST	River Flood Warning	IND	29 days
Feb 17, 7:48 AM EST	Areal Flood Warning	IND	26 hr
Feb 17, 8:21 AM EST	River Flood Warning	IND	11 days
Feb 17, 8:21 AM EST	River Flood Warning	IND	10 days
Feb 17, 8:21 AM EST	River Flood Warning	IND	28 days
Feb 17, 8:21 AM EST	River Flood Warning	IND	12 days
Feb 17, 11:14 AM EST	River Flood Warning	IND	27 days
Feb 17, 11:14 AM EST	River Flood Warning	IND	21 days
Feb 17, 11:14 AM EST	River Flood Warning	IND	29 days
Feb 21, 10:08 AM EST	Flood Watch	IND	27 hr
Feb 24, 1:15 PM EST	Mesoscale Discussion	SPC	4 hr
Mar 6, 12:15 PM EST	River Flood Warning	IND	21 days
Mar 6, 6:04 PM EST	Flood Watch	IND	14 hr
Mar 6, 9:27 PM EST	River Flood Warning	IND	7 days
Mar 7, 11:04 AM EST	River Flood Warning	IND	7 days
Mar 7, 11:04 AM EST	River Flood Warning	IND	9 days
Mar 18, 4:04 PM EDT	Mesoscale Discussion	SPC	116 min
Mar 18, 5:55 PM EDT	Special Weather Statement	IND	35 min
Mar 22, 11:47 AM EDT	River Flood Warning	IND	14 days
Mar 22, 11:47 AM EDT	River Flood Warning	IND	15 days
Mar 22, 11:47 AM EDT	River Flood Warning	IND	7 days
Mar 22, 11:47 AM EDT	River Flood Warning	IND	7 days
Mar 22, 11:47 AM EDT	River Flood Warning	IND	9 days
Mar 22, 9:45 PM EDT	River Flood Warning	IND	7 days
Mar 22, 9:45 PM EDT	River Flood Warning	IND	9 days
Mar 22, 9:45 PM EDT	River Flood Warning	IND	21 days
Mar 29, 3:38 PM EDT	Wind Advisory	IND	30 hr
Mar 30, 1:41 PM EDT	Mesoscale Discussion	SPC	2 hr
Mar 30, 3:44 PM EDT	Tornado Watch	SPC	6 hr
Mar 30, 6:32 PM EDT	Mesoscale Discussion	SPC	88 min
Mar 30, 7:53 PM EDT	Severe Thunderstorm Warning	IND	52 min
Mar 30, 8:24 PM EDT	Mesoscale Discussion	SPC	96 min
Apr 1, 11:14 AM EDT	River Flood Warning	IND	11 hr
Apr 4, 9:45 AM EDT	River Flood Warning	IND	37 hr
Apr 8, 2:52 PM EDT	Freeze Watch	IND	24 hr
Apr 9, 2:43 PM EDT	Freeze Warning	IND	18 hr
Apr 13, 12:20 PM EDT	River Flood Warning	IND	7 days
Apr 13, 12:20 PM EDT	River Flood Warning	IND	8 days
Apr 13, 12:20 PM EDT	River Flood Warning	IND	4 days
Apr 13, 12:27 PM EDT	River Flood Warning	IND	34 hr
Apr 13, 5:36 PM EDT	Special Weather Statement	IND	24 min
Apr 14, 10:12 AM EDT	River Flood Warning	IND	4 days
Apr 18, 3:21 PM EDT	Freeze Warning	IND	18 hr
Apr 24, 11:18 PM EDT	Special Weather Statement	IND	27 min
Apr 25, 9:45 PM EDT	River Flood Warning	IND	70 hr
Apr 25, 9:45 PM EDT	River Flood Warning	IND	38 hr
Apr 26, 3:50 AM EDT	Frost Advisory	IND	30 hr
May 3, 11:42 AM EDT	River Flood Warning	IND	4 days
May 3, 11:42 AM EDT	River Flood Warning	IND	4 days
May 3, 1:30 PM EDT	Mesoscale Discussion	SPC	2 hr
May 5, 11:25 AM EDT	River Flood Warning	IND	8 days
May 5, 11:25 AM EDT	River Flood Warning	IND	9 days
May 14, 7:20 PM EDT	Areal Flood Advisory	IND	3 hr
May 15, 3:03 PM EDT	Mesoscale Discussion	SPC	117 min
May 15, 7:47 PM EDT	Special Weather Statement	IND	28 min
May 15, 9:48 PM EDT	Areal Flood Warning	IND	6 hr
May 19, 2:18 PM EDT	Mesoscale Discussion	SPC	2 hr
May 19, 2:36 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
May 19, 3:51 PM EDT	Severe Thunderstorm Warning	IND	24 min
May 19, 5:01 PM EDT	Severe Thunderstorm Warning	IND	29 min
May 19, 5:26 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IND	34 min
May 19, 5:30 PM EDT	Severe Thunderstorm Warning	IND	30 min
May 19, 5:31 PM EDT	Areal Flood Warning	IND	3 hr
May 19, 6:00 PM EDT	Severe Thunderstorm Warning	IND	30 min
May 19, 8:02 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 19, 8:58 PM EDT	Flood Watch	IND	11 hr
May 19, 10:21 PM EDT	Severe Thunderstorm Warning	IND	24 min
May 19, 10:36 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IND	39 min
May 19, 10:38 PM EDT	Tornado Warning	IND	37 min
May 19, 11:07 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IND	38 min
May 19, 11:49 PM EDT	Special Weather Statement	IND	26 min
May 20, 11:38 AM EDT	River Flood Warning	IND	4 days
May 20, 11:38 AM EDT	River Flood Warning	IND	5 days
May 20, 7:47 PM EDT	River Flood Warning	IND	4 days
May 21, 11:06 AM EDT	Mesoscale Discussion	SPC	114 min
May 21, 1:00 PM EDT	Mesoscale Discussion	SPC	2 hr
May 21, 1:51 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 26, 5:35 PM EDT	Special Weather Statement	IND	25 min
May 27, 9:27 AM EDT	River Flood Warning	IND	5 days
May 27, 12:10 PM EDT	River Flood Warning	IND	4 days
May 28, 11:27 AM EDT	River Flood Warning	IND	25 hr
Jun 1, 2:58 PM EDT	Mesoscale Discussion	SPC	92 min
Jun 1, 7:24 PM EDT	Mesoscale Discussion	SPC	96 min
Jun 6, 1:34 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 8, 1:38 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 8, 2:29 PM EDT	Tornado Watch	SPC	8 hr
Jun 12, 11:15 AM EDT	Mesoscale Discussion	SPC	2 hr
Jun 12, 3:46 PM EDT	Heat Advisory	IND	29 hr
Jun 13, 3:40 AM EDT	Heat Advisory	IND	36 hr
Jun 14, 3:34 AM EDT	Excessive Heat Warning	IND	41 hr
Jun 15, 3:32 PM EDT	Heat Advisory	IND	29 hr
Jun 17, 6:38 AM EDT	Mesoscale Discussion	SPC	97 min
Jun 17, 7:03 AM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 17, 8:10 AM EDT	Severe Thunderstorm Warning	IND	35 min
Jun 17, 8:42 AM EDT	Severe Thunderstorm Warning	IND	48 min
Jun 26, 3:16 AM EDT	Special Weather Statement	IND	29 min
Jul 4, 2:42 PM EDT	Heat Advisory	IND	49 hr
Jul 8, 9:54 AM EDT	Flash Flood Warning	IND	2 hr
Jul 8, 5:42 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 8, 9:28 PM EDT	Special Weather Statement	IND	32 min
Jul 19, 3:20 PM EDT	Heat Advisory	IND	29 hr
Jul 23, 3:54 AM EDT	Heat Advisory	IND	16 hr
Jul 24, 3:38 AM EDT	Heat Advisory	IND	16 hr
Jul 24, 4:38 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 24, 6:28 PM EDT	Severe Thunderstorm Warning	IND	62 min
Jul 24, 6:29 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 24, 7:43 PM EDT	Severe Thunderstorm Warning	IND	62 min
Jul 24, 7:58 PM EDT	Areal Flood Advisory	IND	4 hr
Jul 24, 8:27 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 24, 9:00 PM EDT	Flash Flood Warning	IND	6 hr
Jul 25, 1:58 AM EDT	Areal Flood Warning	IND	7 hr
Jul 25, 2:49 AM EDT	Areal Flood Warning	IND	6 hr
Jul 25, 3:32 AM EDT	Flood Watch	IND	58 hr
Jul 26, 5:36 AM EDT	Areal Flood Advisory	IND	3 hr
Jul 26, 8:41 AM EDT	Areal Flood Warning	IND	5 hr
Jul 26, 11:02 AM EDT	River Flood Warning	IND	46 hr
Jul 27, 8:15 AM EDT	Areal Flood Warning	IND	3 hr
Aug 1, 4:07 PM EDT	Mesoscale Discussion	SPC	113 min
Aug 1, 4:39 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 1, 6:19 PM EDT	Severe Thunderstorm Warning	IND	11 min
Aug 1, 6:32 PM EDT	Severe Thunderstorm Warning	IND	28 min
Aug 1, 6:51 PM EDT	Mesoscale Discussion	SPC	114 min
Aug 1, 7:56 PM EDT	Severe Thunderstorm Warning	IND	21 min
Aug 1, 8:52 PM EDT	Mesoscale Discussion	SPC	113 min
Aug 2, 5:25 AM EDT	Special Weather Statement	IND	35 min
Aug 3, 6:45 PM EDT	Mesoscale Discussion	SPC	90 min
Aug 8, 3:17 PM EDT	Flood Watch	IND	14 hr
Sep 3, 3:22 PM EDT	Areal Flood Advisory	IND	3 hr
Sep 14, 1:25 AM EDT	Dense Fog Advisory	IND	7 hr
Sep 20, 5:55 AM EDT	Dense Fog Advisory	IND	3 hr
Oct 7, 2:54 AM EDT	Frost Advisory	IND	30 hr
Oct 8, 2:09 PM EDT	Frost Advisory	IND	19 hr
Oct 13, 3:56 AM EDT	Fire Weather Watch	IND	11 hr
Oct 13, 3:56 AM EDT	Red Flag Warning	IND	11 hr
Oct 13, 2:57 PM EDT	Red Flag Warning	IND	29 hr
Oct 16, 3:51 AM EDT	Freeze Watch	IND	11 hr
Oct 16, 2:55 PM EDT	Freeze Warning	IND	43 hr
Oct 18, 3:00 PM EDT	Freeze Warning	IND	19 hr
Oct 19, 10:41 AM EDT	Freeze Warning	IND	23 hr
Oct 19, 2:32 PM EDT	Red Flag Warning	IND	29 hr
Nov 4, 3:37 AM EDT	Wind Advisory	IND	40 hr
Nov 26, 12:11 AM EST	Dense Fog Advisory	IND	9 hr
Nov 29, 11:50 AM EST	Wind Advisory	IND	11 hr
Dec 1, 3:50 PM EST	Wind Advisory	IND	42 hr
Dec 19, 3:17 PM EST	Winter Storm Watch	IND	45 hr
Dec 21, 12:13 PM EST	Winter Storm Warning	IND	67 hr
Dec 22, 4:39 PM EST	Mesoscale Discussion	SPC	4 hr
Dec 24, 3:07 AM EST	Wind Chill Advisory	IND	10 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	16
Tornado Warning	1
Severe Thunderstorm Watch	6
Tornado Watch	2
Mesoscale Discussion	26
Special Weather Statement	9
Flooding
Areal Flood Warning	7
Flash Flood Warning	2
River Flood Warning	42
Flood Watch	6
Areal Flood Advisory	4
Winter
Winter Storm Warning	2
Winter Storm Watch	2
Winter Weather Advisory	2
Heat
Excessive Heat Warning	1
Heat Advisory	7
Cold
Freeze Warning	5
Freeze Watch	2
Frost Advisory	3
Wind Chill Advisory	1
Wind and dust
Wind Advisory	5
Fire
Red Flag Warning	3
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	3

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2021 2023

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.