Alert archive / Indiana / Hamilton County

Weather alerts in Hamilton County, Indiana, 2019

144 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Hamilton County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts: 144
Warnings: 61
Watches: 22
Advisories: 25
Busiest month: May34 alerts
Busiest day: June 16, 20199 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 warnings covering Hamilton County in 2019 had a tornado report inside them.

Hamilton County, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	0
Severe thunderstorm warnings	19	15	21%	13	54%	13 min
Flash flood warnings	3	2	33%	2	100%	13 min

Each office's whole area, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Indianapolis, IN: tornado warnings	44	11	75%	29	79%	12 min
NWS Indianapolis, IN: severe thunderstorm warnings	172	113	34%	340	74%	21 min
NWS Indianapolis, IN: flash flood warnings	48	28	42%	50	92%	72 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 1, 2:23 AM EST	River Flood Warning	IND	37 hr
Jan 1, 10:49 AM EST	River Flood Warning	IND	34 hr
Jan 8, 3:34 AM EST	Wind Advisory	IND	15 hr
Jan 11, 3:12 AM EST	Winter Storm Warning	IND	52 hr
Jan 16, 3:35 PM EST	Winter Weather Advisory	IND	18 hr
Jan 17, 3:11 PM EST	Winter Storm Watch	IND	24 hr
Jan 18, 2:57 PM EST	Winter Storm Warning	IND	36 hr
Jan 19, 4:21 PM EST	Mesoscale Discussion	SPC	3 hr
Jan 19, 7:21 PM EST	Mesoscale Discussion	SPC	3 hr
Jan 20, 2:45 PM EST	Wind Chill Advisory	IND	21 hr
Jan 23, 6:52 PM EST	River Flood Warning	IND	42 hr
Jan 24, 9:05 AM EST	River Flood Warning	IND	29 hr
Jan 24, 11:11 AM EST	Wind Chill Advisory	IND	24 hr
Jan 28, 3:51 AM EST	Wind Chill Watch	IND	12 hr
Jan 28, 3:32 PM EST	Wind Chill Warning	IND	69 hr
Jan 31, 3:54 AM EST	Winter Weather Advisory	IND	30 hr
Feb 5, 3:17 PM EST	Flood Watch	IND	55 hr
Feb 6, 10:15 AM EST	River Flood Warning	IND	6 days
Feb 6, 10:15 AM EST	River Flood Warning	IND	4 days
Feb 7, 2:10 AM EST	Dense Fog Advisory	IND	6 hr
Feb 7, 1:34 PM EST	Areal Flood Warning	IND	3 hr
Feb 7, 2:53 PM EST	Wind Advisory	IND	13 hr
Feb 7, 4:59 PM EST	Areal Flood Warning	IND	36 hr
Feb 8, 5:20 PM EST	River Flood Warning	IND	3 hr
Feb 9, 3:43 PM EST	Flood Watch	IND	63 hr
Feb 12, 3:46 AM EST	Wind Advisory	IND	24 hr
Feb 17, 9:07 PM EST	Winter Weather Advisory	IND	4 hr
Feb 19, 3:25 AM EST	Winter Weather Advisory	IND	31 hr
Feb 20, 3:25 AM EST	Mesoscale Discussion	SPC	6 hr
Feb 22, 3:33 PM EST	High Wind Watch	IND	23 hr
Feb 23, 2:24 PM EST	High Wind Warning	IND	32 hr
Mar 7, 3:30 AM EST	Winter Weather Advisory	IND	31 hr
Mar 9, 3:46 PM EST	Wind Advisory	IND	15 hr
Mar 10, 3:57 PM EDT	River Flood Warning	IND	22 hr
Mar 13, 3:48 PM EDT	Wind Advisory	IND	31 hr
Mar 14, 10:47 AM EDT	Tornado Watch	SPC	6 hr
Apr 10, 3:46 PM EDT	Wind Advisory	IND	28 hr
Apr 12, 2:57 AM EDT	Special Weather Statement	IND	63 min
Apr 17, 10:39 AM EDT	River Flood Warning	IND	5 days
Apr 17, 10:39 AM EDT	River Flood Warning	IND	4 days
Apr 18, 3:45 AM EDT	Flood Watch	IND	18 hr
Apr 21, 1:42 AM EDT	Dense Fog Advisory	IND	8 hr
Apr 25, 9:41 PM EDT	Areal Flood Advisory	IND	18 hr
Apr 25, 9:54 PM EDT	River Flood Warning	IND	62 hr
Apr 25, 9:54 PM EDT	River Flood Warning	IND	71 hr
Apr 26, 11:07 AM EDT	River Flood Warning	IND	27 hr
May 2, 3:20 AM EDT	Dense Fog Advisory	IND	7 hr
May 16, 3:47 PM EDT	Mesoscale Discussion	SPC	118 min
May 16, 4:27 PM EDT	Severe Thunderstorm Watch	SPC	3 hr
May 16, 5:15 PM EDT	Severe Thunderstorm Warning	IND	30 min
May 16, 6:33 PM EDT	Mesoscale Discussion	SPC	117 min
May 19, 4:26 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
May 19, 5:11 PM EDT	Severe Thunderstorm Warning	IND	49 min
May 19, 5:53 PM EDT	Severe Thunderstorm Warning	IND	52 min
May 19, 6:36 PM EDT	Severe Thunderstorm Warning	IND	24 min
May 19, 6:54 PM EDT	Severe Thunderstorm Warning	IND	51 min
May 19, 7:00 PM EDT	Mesoscale Discussion	SPC	2 hr
May 23, 3:01 AM EDT	Severe Thunderstorm Watch	SPC	4 hr
May 23, 4:13 AM EDT	Severe Thunderstorm Warning	IND	62 min
May 23, 4:50 AM EDT	Mesoscale Discussion	SPC	55 min
May 23, 4:51 AM EDT	Severe Thunderstorm Warning	IND	54 min
May 25, 1:07 PM EDT	Mesoscale Discussion	SPC	83 min
May 26, 1:24 AM EDT	Mesoscale Discussion	SPC	66 min
May 26, 4:06 AM EDT	Mesoscale Discussion	SPC	84 min
May 26, 4:09 AM EDT	Severe Thunderstorm Warning	IND	36 min
May 26, 4:14 AM EDT	Severe Thunderstorm Watch	SPC	2 hr
May 26, 4:38 AM EDT	Special Weather Statement	IND	37 min
May 27, 1:50 PM EDT	Mesoscale Discussion	SPC	85 min
May 27, 2:22 PM EDT	Tornado Watch	SPC	9 hr
May 27, 3:27 PM EDT	Special Weather Statement	IND	48 min
May 27, 4:57 PM EDT	Mesoscale Discussion	SPC	93 min
May 27, 6:30 PM EDT	Mesoscale Discussion	SPC	90 min
May 27, 7:49 PM EDT	Severe Thunderstorm Warning	IND	26 min
May 27, 8:08 PM EDT	Tornado Warning	IND	37 min
May 27, 9:14 PM EDT	Severe Thunderstorm Warning	IND	31 min
May 28, 12:16 PM EDT	Mesoscale Discussion	SPC	119 min
May 28, 1:22 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 28, 3:24 PM EDT	Mesoscale Discussion	SPC	2 hr
May 30, 4:28 PM EDT	Mesoscale Discussion	SPC	2 hr
May 30, 6:18 PM EDT	Severe Thunderstorm Warning	IND	42 min
Jun 5, 1:44 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 5, 3:43 PM EDT	Special Weather Statement	IND	47 min
Jun 5, 4:09 PM EDT	Severe Thunderstorm Warning	IND	36 min
Jun 5, 4:23 PM EDT	Flash Flood Warning	IND	3 hr
Jun 5, 4:35 PM EDT	Mesoscale Discussion	SPC	115 min
Jun 9, 10:11 PM EDT	Areal Flood Advisory	IND	2 hr
Jun 15, 4:01 AM EDT	Flash Flood Watch	IND	34 hr
Jun 15, 7:06 PM EDT	Areal Flood Advisory	IND	3 hr
Jun 15, 8:04 PM EDT	Areal Flood Warning	IND	6 hr
Jun 16, 1:59 AM EDT	Areal Flood Warning	IND	6 hr
Jun 16, 2:14 AM EDT	Mesoscale Discussion	SPC	61 min
Jun 16, 2:37 AM EDT	Severe Thunderstorm Warning	IND	23 min
Jun 16, 7:55 AM EDT	Areal Flood Warning	IND	3 hr
Jun 16, 10:14 AM EDT	River Flood Warning	IND	37 hr
Jun 16, 10:14 AM EDT	River Flood Warning	IND	46 hr
Jun 16, 12:00 PM EDT	Areal Flood Warning	IND	6 hr
Jun 16, 5:57 PM EDT	Areal Flood Warning	IND	6 hr
Jun 16, 8:32 PM EDT	Special Weather Statement	IND	43 min
Jun 16, 8:43 PM EDT	Areal Flood Warning	IND	7 hr
Jun 16, 10:52 PM EDT	River Flood Warning	IND	48 hr
Jun 17, 3:14 AM EDT	Flash Flood Watch	IND	4 days
Jun 17, 5:40 PM EDT	Areal Flood Warning	IND	3 hr
Jun 18, 3:30 PM EDT	Areal Flood Warning	IND	3 hr
Jun 18, 8:42 PM EDT	River Flood Warning	IND	23 hr
Jun 19, 12:34 PM EDT	Mesoscale Discussion	SPC	116 min
Jun 19, 4:37 PM EDT	Areal Flood Warning	IND	3 hr
Jun 19, 5:05 PM EDT	Flash Flood Warning	IND	7 hr
Jun 19, 11:01 PM EDT	Areal Flood Warning	IND	6 hr
Jun 20, 5:04 AM EDT	Areal Flood Warning	IND	6 hr
Jun 23, 2:06 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 23, 3:26 PM EDT	Severe Thunderstorm Warning	IND	49 min
Jun 23, 4:04 PM EDT	Severe Thunderstorm Warning	IND	41 min
Jun 23, 4:08 PM EDT	Mesoscale Discussion	SPC	97 min
Jul 5, 1:14 PM EDT	Flash Flood Warning	IND	3 hr
Jul 6, 2:36 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 10, 8:03 PM EDT	Severe Thunderstorm Warning	IND	27 min
Jul 11, 3:49 PM EDT	River Flood Warning	IND	3 hr
Jul 17, 3:53 AM EDT	Excessive Heat Watch	IND	12 hr
Jul 17, 3:50 PM EDT	Excessive Heat Warning	IND	4 days
Jul 21, 1:56 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 21, 5:06 PM EDT	Special Weather Statement	IND	39 min
Jul 29, 3:36 PM EDT	Special Weather Statement	IND	39 min
Aug 18, 1:35 PM EDT	Mesoscale Discussion	SPC	115 min
Aug 18, 2:05 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 18, 4:29 PM EDT	Mesoscale Discussion	SPC	91 min
Aug 18, 6:08 PM EDT	Mesoscale Discussion	SPC	97 min
Aug 18, 6:13 PM EDT	Severe Thunderstorm Warning	IND	77 min
Aug 18, 7:24 PM EDT	Severe Thunderstorm Warning	IND	51 min
Aug 20, 1:12 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 20, 2:07 PM EDT	Severe Thunderstorm Watch	SPC	3 hr
Aug 20, 2:23 PM EDT	Severe Thunderstorm Warning	IND	37 min
Sep 3, 4:54 PM EDT	Mesoscale Discussion	SPC	2 hr
Oct 13, 3:27 PM EDT	Frost Advisory	IND	18 hr
Oct 17, 3:30 PM EDT	Frost Advisory	IND	17 hr
Oct 26, 5:48 PM EDT	Mesoscale Discussion	SPC	87 min
Oct 31, 3:18 AM EDT	Wind Advisory	IND	19 hr
Nov 10, 3:23 PM EST	Winter Weather Advisory	IND	41 hr
Nov 25, 2:59 PM EST	High Wind Watch	IND	23 hr
Nov 26, 1:32 PM EST	High Wind Warning	IND	31 hr
Dec 14, 3:09 PM EST	Winter Storm Watch	IND	12 hr
Dec 15, 3:34 AM EST	Winter Weather Advisory	IND	53 hr
Dec 15, 3:11 PM EST	Mesoscale Discussion	SPC	4 hr
Dec 16, 3:55 AM EST	Winter Storm Warning	IND	23 hr
Dec 24, 3:09 AM EST	Dense Fog Advisory	IND	7 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	19
Tornado Warning	1
Severe Thunderstorm Watch	9
Tornado Watch	2
Mesoscale Discussion	29
Special Weather Statement	7
Flooding
Areal Flood Warning	13
Flash Flood Warning	3
River Flood Warning	18
Flash Flood Watch	2
Flood Watch	3
Areal Flood Advisory	3
Winter
Winter Storm Warning	3
Winter Storm Watch	2
Winter Weather Advisory	7
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Cold
Wind Chill Warning	1
Wind Chill Watch	1
Frost Advisory	2
Wind Chill Advisory	2
Wind and dust
High Wind Warning	2
High Wind Watch	2
Wind Advisory	7
Fog and smoke
Dense Fog Advisory	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 2018 2020

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.