Weather alerts in Clark County, Indiana, 2010

163 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Clark County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 163
Warnings: 38
Watches: 21
Advisories: 38
Busiest month: June30 alerts
Busiest day: October 26, 20106 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 2 tornado warnings covering Clark County in 2010 had a tornado report inside them.

Clark County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	20	10	50%	6	67%	15 min
Flash flood warnings	1	0	100%	0

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Louisville, KY: tornado warnings	39	6	85%	12	58%	4 min
NWS Louisville, KY: severe thunderstorm warnings	273	120	56%	290	70%	16 min
NWS Louisville, KY: flash flood warnings	49	17	65%	56	71%	131 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 5, 2:41 PM EST	Winter Storm Watch	LMK	25 hr
Jan 6, 4:10 PM EST	Winter Storm Warning	LMK	19 hr
Jan 6, 4:10 PM EST	Winter Weather Advisory	LMK	27 hr
Jan 18, 9:37 PM EST	Dense Fog Advisory	LMK	10 hr
Jan 19, 3:29 AM EST	Freezing Fog Advisory	LMK	7 hr
Jan 19, 9:56 AM EST	Dense Fog Advisory	LMK	3 hr
Jan 26, 5:07 AM EST	Winter Weather Advisory	LMK	7 hr
Jan 28, 4:38 PM EST	Winter Weather Advisory	LMK	42 hr
Feb 5, 10:50 AM EST	Winter Storm Warning	LMK	17 hr
Feb 5, 10:50 AM EST	Winter Weather Advisory	LMK	24 hr
Feb 7, 4:47 AM EST	Winter Storm Watch	LMK	24 hr
Feb 8, 4:55 AM EST	Winter Weather Advisory	LMK	32 hr
Feb 8, 11:27 AM EST	Winter Storm Warning	LMK	26 hr
Feb 9, 9:02 PM EST	Winter Weather Advisory	LMK	19 hr
Feb 13, 3:28 PM EST	Winter Storm Watch	LMK	12 hr
Feb 14, 3:26 AM EST	Winter Storm Warning	LMK	40 hr
Feb 15, 9:37 PM EST	Winter Weather Advisory	LMK	11 hr
Feb 24, 8:47 AM EST	Special Weather Statement	LMK	58 min
Feb 24, 10:26 PM EST	Winter Weather Advisory	LMK	11 hr
Mar 12, 12:04 PM EST	Severe Thunderstorm Watch	SPC	6 hr
Mar 12, 1:02 PM EST	Severe Thunderstorm Warning	LMK	28 min
Mar 15, 11:35 AM EDT	River Flood Advisory	LMK	71 hr
Apr 3, 9:16 AM EDT	Special Weather Statement	LMK	44 min
Apr 3, 9:52 AM EDT	Special Weather Statement	LMK	38 min
Apr 3, 10:17 AM EDT	Special Weather Statement	LMK	58 min
Apr 5, 5:29 PM EDT	Tornado Watch	SPC	4 hr
Apr 5, 5:37 PM EDT	Special Weather Statement	LMK	53 min
Apr 5, 5:47 PM EDT	Severe Thunderstorm Warning	LMK	28 min
Apr 7, 10:19 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 7, 11:16 PM EDT	Mesoscale Discussion	SPC	119 min
Apr 16, 12:44 PM EDT	Mesoscale Discussion	SPC	2 hr
Apr 16, 4:34 PM EDT	Mesoscale Discussion	SPC	86 min
Apr 17, 4:12 AM EDT	Frost Advisory	LMK	28 hr
Apr 24, 12:40 PM EDT	Mesoscale Discussion	SPC	95 min
Apr 24, 8:33 PM EDT	Mesoscale Discussion	SPC	57 min
Apr 27, 3:43 PM EDT	Frost Advisory	LMK	17 hr
Apr 29, 3:29 PM EDT	Flash Flood Watch	LMK	3 days
May 1, 3:52 AM EDT	Severe Thunderstorm Warning	LMK	23 min
May 1, 3:54 AM EDT	Mesoscale Discussion	SPC	2 hr
May 1, 6:55 AM EDT	Special Weather Statement	LMK	50 min
May 2, 12:30 PM EDT	Flash Flood Warning	LMK	3 hr
May 2, 3:33 PM EDT	Areal Flood Warning	LMK	6 hr
May 3, 7:04 AM EDT	Dense Fog Advisory	LMK	3 hr
May 3, 10:09 PM EDT	River Flood Warning	LMK	12 hr
May 4, 11:57 AM EDT	River Flood Advisory	LMK	57 hr
May 4, 11:57 AM EDT	River Flood Advisory	LMK	57 hr
May 7, 4:02 AM EDT	Wind Advisory	LMK	15 hr
May 7, 6:53 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 7, 10:40 PM EDT	Mesoscale Discussion	SPC	95 min
May 7, 11:00 PM EDT	Special Weather Statement	LMK	30 min
May 11, 4:49 AM EDT	Special Weather Statement	LMK	26 min
May 12, 9:33 AM EDT	Special Weather Statement	LMK	27 min
May 12, 9:44 AM EDT	Special Weather Statement	LMK	31 min
May 12, 6:10 PM EDT	Severe Thunderstorm Warning	LMK	35 min
May 13, 1:46 PM EDT	Tornado Watch	SPC	6 hr
May 13, 4:02 PM EDT	Mesoscale Discussion	SPC	88 min
May 21, 11:26 AM EDT	Mesoscale Discussion	SPC	64 min
May 21, 5:29 PM EDT	Mesoscale Discussion	SPC	31 min
May 21, 7:41 PM EDT	Mesoscale Discussion	SPC	64 min
May 21, 7:56 PM EDT	Special Weather Statement	LMK	49 min
May 21, 8:24 PM EDT	Severe Thunderstorm Warning	LMK	36 min
May 27, 4:31 PM EDT	Special Weather Statement	LMK	29 min
May 27, 5:02 PM EDT	Special Weather Statement	LMK	28 min
May 27, 5:34 PM EDT	Special Weather Statement	LMK	26 min
Jun 11, 1:38 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 11, 3:31 PM EDT	Flash Flood Watch	LMK	16 hr
Jun 12, 5:47 PM EDT	Mesoscale Discussion	SPC	88 min
Jun 13, 9:02 PM EDT	Mesoscale Discussion	SPC	58 min
Jun 13, 10:03 PM EDT	Severe Thunderstorm Warning	LMK	27 min
Jun 13, 10:22 PM EDT	Special Weather Statement	LMK	23 min
Jun 14, 2:45 PM EDT	Mesoscale Discussion	SPC	60 min
Jun 15, 12:55 PM EDT	Mesoscale Discussion	SPC	95 min
Jun 15, 5:47 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 15, 6:58 PM EDT	Mesoscale Discussion	SPC	62 min
Jun 15, 7:46 PM EDT	Severe Thunderstorm Warning	LMK	44 min
Jun 15, 8:21 PM EDT	Severe Thunderstorm Warning	LMK	39 min
Jun 15, 8:41 PM EDT	Mesoscale Discussion	SPC	64 min
Jun 15, 8:42 PM EDT	Severe Thunderstorm Warning	LMK	48 min
Jun 15, 9:21 PM EDT	Severe Thunderstorm Warning	LMK	39 min
Jun 18, 3:56 PM EDT	Heat Advisory	LMK	23 hr
Jun 18, 3:56 PM EDT	Heat Advisory	LMK	50 hr
Jun 19, 3:33 AM EDT	Mesoscale Discussion	SPC	57 min
Jun 19, 5:11 AM EDT	Special Weather Statement	LMK	49 min
Jun 19, 5:36 AM EDT	Severe Thunderstorm Warning	LMK	24 min
Jun 19, 5:50 AM EDT	Severe Thunderstorm Warning	LMK	10 min
Jun 19, 5:57 AM EDT	Special Weather Statement	LMK	48 min
Jun 22, 3:27 AM EDT	Mesoscale Discussion	SPC	93 min
Jun 22, 11:35 AM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 22, 2:38 PM EDT	Mesoscale Discussion	SPC	67 min
Jun 27, 11:31 AM EDT	Special Weather Statement	LMK	44 min
Jun 27, 12:00 PM EDT	Severe Thunderstorm Warning	LMK	30 min
Jun 27, 12:52 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 27, 11:57 PM EDT	Special Weather Statement	LMK	48 min
Jun 28, 12:38 AM EDT	Special Weather Statement	LMK	52 min
Jul 13, 5:48 AM EDT	Special Weather Statement	LMK	27 min
Jul 17, 3:20 PM EDT	Severe Thunderstorm Warning	LMK	25 min
Jul 17, 4:06 PM EDT	Severe Thunderstorm Warning	LMK	24 min
Jul 17, 8:57 PM EDT	Special Weather Statement	LMK	33 min
Jul 17, 9:30 PM EDT	Special Weather Statement	LMK	30 min
Jul 17, 9:43 PM EDT	Areal Flood Advisory	LMK	92 min
Jul 17, 10:03 PM EDT	Special Weather Statement	LMK	27 min
Jul 17, 10:31 PM EDT	Special Weather Statement	LMK	29 min
Jul 19, 3:36 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 19, 6:46 PM EDT	Severe Thunderstorm Warning	LMK	44 min
Jul 21, 6:18 AM EDT	Special Weather Statement	LMK	42 min
Jul 22, 3:59 PM EDT	Heat Advisory	LMK	27 hr
Jul 22, 3:59 PM EDT	Heat Advisory	LMK	51 hr
Jul 27, 4:43 PM EDT	Flash Flood Watch	LMK	2 hr
Jul 28, 7:11 PM EDT	Special Weather Statement	LMK	34 min
Aug 2, 3:37 PM EDT	Heat Advisory	LMK	53 hr
Aug 4, 4:16 AM EDT	Excessive Heat Warning	LMK	17 hr
Aug 4, 3:09 PM EDT	Mesoscale Discussion	SPC	66 min
Aug 4, 3:42 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 4, 6:25 PM EDT	Mesoscale Discussion	SPC	65 min
Aug 4, 8:55 PM EDT	Mesoscale Discussion	SPC	65 min
Aug 5, 8:51 AM EDT	Mesoscale Discussion	SPC	114 min
Aug 5, 8:57 AM EDT	Special Weather Statement	LMK	33 min
Aug 9, 3:17 PM EDT	Heat Advisory	LMK	29 hr
Aug 11, 3:41 AM EDT	Heat Advisory	LMK	5 days
Aug 11, 12:14 PM EDT	Excessive Heat Warning	LMK	3 hr
Aug 11, 12:39 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 11, 3:44 PM EDT	Areal Flood Advisory	LMK	98 min
Aug 14, 2:43 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 14, 4:19 PM EDT	Severe Thunderstorm Warning	LMK	26 min
Aug 14, 4:23 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 15, 7:51 PM EDT	Special Weather Statement	LMK	54 min
Aug 15, 8:01 PM EDT	Severe Thunderstorm Warning	LMK	29 min
Aug 15, 8:27 PM EDT	Areal Flood Advisory	LMK	2 hr
Aug 19, 7:35 AM EDT	Dense Fog Advisory	LMK	2 hr
Sep 7, 3:58 PM EDT	Mesoscale Discussion	SPC	62 min
Sep 22, 2:27 PM EDT	Red Flag Warning	LMK	6 hr
Sep 22, 3:23 PM EDT	Fire Weather Watch	LMK	12 hr
Sep 23, 3:39 AM EDT	Red Flag Warning	LMK	16 hr
Oct 4, 2:57 PM EDT	Frost Advisory	LMK	17 hr
Oct 13, 6:16 PM EDT	Special Weather Statement	LMK	29 min
Oct 21, 3:41 AM EDT	Red Flag Warning	LMK	14 hr
Oct 21, 3:58 PM EDT	Frost Advisory	LMK	17 hr
Oct 23, 3:29 AM EDT	Red Flag Warning	LMK	16 hr
Oct 25, 2:53 PM EDT	Wind Advisory	LMK	24 hr
Oct 26, 7:00 AM EDT	Mesoscale Discussion	SPC	2 hr
Oct 26, 8:55 AM EDT	Tornado Watch	SPC	7 hr
Oct 26, 10:52 AM EDT	Severe Thunderstorm Warning	LMK	38 min
Oct 26, 10:56 AM EDT	Tornado Warning	LMK	19 min
Oct 26, 11:08 AM EDT	Severe Thunderstorm Warning	LMK	52 min
Oct 26, 11:12 AM EDT	Tornado Warning	LMK	33 min
Oct 28, 2:58 PM EDT	Freeze Warning	LMK	12 hr
Oct 29, 3:32 PM EDT	Fire Weather Watch	LMK	12 hr
Oct 30, 3:45 AM EDT	Red Flag Warning	LMK	15 hr
Nov 18, 3:49 PM EST	Dense Fog Advisory	LMK	16 hr
Nov 20, 5:00 AM EST	Dense Fog Advisory	LMK	3 hr
Nov 24, 3:49 PM EST	Flood Watch	LMK	33 hr
Nov 25, 3:59 PM EST	Special Weather Statement	LMK	46 min
Dec 3, 3:02 PM EST	Winter Weather Advisory	LMK	28 hr
Dec 11, 3:01 PM EST	Winter Weather Advisory	LMK	46 hr
Dec 12, 4:30 PM EST	Special Weather Statement	LMK	45 min
Dec 12, 5:29 PM EST	Special Weather Statement	LMK	46 min
Dec 12, 6:18 PM EST	Special Weather Statement	LMK	42 min
Dec 12, 7:02 PM EST	Special Weather Statement	LMK	43 min
Dec 14, 4:23 AM EST	Winter Storm Watch	LMK	12 hr
Dec 14, 4:13 PM EST	Winter Storm Warning	LMK	45 hr
Dec 14, 4:13 PM EST	Winter Weather Advisory	LMK	18 hr
Dec 16, 4:17 AM EST	Mesoscale Discussion	SPC	6 hr
Dec 24, 2:16 AM EST	Winter Weather Advisory	LMK	27 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	20
Tornado Warning	2
Severe Thunderstorm Watch	8
Tornado Watch	3
Mesoscale Discussion	31
Special Weather Statement	35
Flooding
Areal Flood Warning	1
Flash Flood Warning	1
River Flood Warning	1
Flash Flood Watch	3
Flood Watch	1
Areal Flood Advisory	3
River Flood Advisory	3
Winter
Winter Storm Warning	5
Winter Storm Watch	4
Winter Weather Advisory	12
Heat
Excessive Heat Warning	2
Heat Advisory	7
Cold
Freeze Warning	1
Frost Advisory	4
Wind and dust
Wind Advisory	2
Fire
Red Flag Warning	5
Fire Weather Watch	2
Fog and smoke
Dense Fog Advisory	6
Freezing Fog Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2009 2011

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.