Alert archive / Arkansas / Nevada County
Weather alerts in Nevada County, Arkansas, 2016
131 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Nevada County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 131
- Warnings
- 32
- Watches
- 16
- Advisories
- 39
- Busiest month
- March36 alerts
- Busiest day
- April 29, 201611 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 6 tornado warnings covering Nevada County in 2016 had a tornado report inside them.
Nevada County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 6 | 1 | 83% | 0 | ||
| Severe thunderstorm warnings | 12 | 8 | 33% | 6 | 83% | 17 min |
| Flash flood warnings | 6 | 5 | 17% | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Shreveport, LA: tornado warnings | 78 | 11 | 86% | 20 | 80% | 14 min |
| NWS Shreveport, LA: severe thunderstorm warnings | 256 | 125 | 51% | 404 | 72% | 22 min |
| NWS Shreveport, LA: flash flood warnings | 82 | 58 | 29% | 248 | 92% | 275 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 8, 2:08 AM CST | Dense Fog Advisory | SHV | 10 hr |
| Jan 8, 9:32 PM CST | Special Weather Statement | SHV | 28 min |
| Jan 21, 3:50 PM CST | Lake Wind Advisory | SHV | 26 hr |
| Jan 21, 4:11 PM CST | Winter Weather Advisory | SHV | 16 hr |
| Jan 30, 4:28 AM CST | Lake Wind Advisory | SHV | 36 hr |
| Feb 2, 4:09 AM CST | Lake Wind Advisory | SHV | 14 hr |
| Feb 7, 3:25 PM CST | Lake Wind Advisory | SHV | 27 hr |
| Feb 9, 3:29 AM CST | Lake Wind Advisory | SHV | 13 hr |
| Feb 16, 10:59 AM CST | Lake Wind Advisory | SHV | 7 hr |
| Feb 22, 9:55 PM CST | Wind Advisory | SHV | 29 hr |
| Feb 23, 4:27 PM CST | Lake Wind Advisory | SHV | 24 hr |
| Feb 27, 3:39 PM CST | Lake Wind Advisory | SHV | 24 hr |
| Mar 2, 10:18 PM CST | Lake Wind Advisory | SHV | 20 hr |
| Mar 3, 1:08 AM CST | Special Weather Statement | SHV | 67 min |
| Mar 7, 4:53 AM CST | Flash Flood Watch | SHV | 6 days |
| Mar 7, 9:40 AM CST | River Flood Warning | LZK | 5 days |
| Mar 8, 12:41 PM CST | Tornado Watch | SPC | 5 hr |
| Mar 8, 3:11 PM CST | Mesoscale Discussion | SPC | 94 min |
| Mar 8, 10:38 PM CST | Severe Thunderstorm Warning | SHV | 40 min |
| Mar 13, 1:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Mar 13, 2:10 PM CDT | Tornado Watch | SPC | 5 hr |
| Mar 13, 3:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Mar 13, 5:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Mar 13, 6:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Mar 13, 7:11 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 13, 7:30 PM CDT | Tornado Warning | SHV | 33 min |
| Mar 13, 8:03 PM CDT | Severe Thunderstorm Warning | SHV | 42 min |
| Mar 15, 4:43 AM CDT | Lake Wind Advisory | SHV | 14 hr |
| Mar 17, 9:37 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Mar 17, 10:55 AM CDT | Severe Thunderstorm Warning | SHV | 42 min |
| Mar 18, 9:51 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Mar 18, 1:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Mar 18, 1:35 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 18, 3:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Mar 18, 5:34 PM CDT | Special Weather Statement | SHV | 41 min |
| Mar 20, 4:50 AM CDT | Freeze Warning | SHV | 28 hr |
| Mar 20, 4:50 AM CDT | Lake Wind Advisory | SHV | 12 hr |
| Mar 21, 2:30 PM CDT | Lake Wind Advisory | SHV | 59 hr |
| Mar 22, 2:49 PM CDT | Lake Wind Advisory | SHV | 34 hr |
| Mar 24, 2:45 AM CDT | Special Weather Statement | SHV | 60 min |
| Mar 24, 3:55 AM CDT | Lake Wind Advisory | SHV | 12 hr |
| Mar 29, 3:28 PM CDT | Flash Flood Watch | SHV | 52 hr |
| Mar 30, 11:07 AM CDT | Lake Wind Advisory | SHV | 11 hr |
| Mar 30, 2:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Mar 30, 2:31 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 30, 4:09 PM CDT | Special Weather Statement | SHV | 51 min |
| Mar 30, 5:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Mar 30, 6:21 PM CDT | Tornado Warning | SHV | 39 min |
| Apr 6, 4:32 AM CDT | Lake Wind Advisory | SHV | 14 hr |
| Apr 9, 8:48 PM CDT | Lake Wind Advisory | SHV | 25 hr |
| Apr 11, 11:48 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 11, 11:57 AM CDT | Special Weather Statement | SHV | 48 min |
| Apr 11, 12:02 PM CDT | Severe Thunderstorm Warning | SHV | 58 min |
| Apr 11, 12:40 PM CDT | Tornado Warning | SHV | 50 min |
| Apr 11, 1:04 PM CDT | Special Weather Statement | SHV | 26 min |
| Apr 11, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 11, 6:03 PM CDT | Severe Thunderstorm Warning | SHV | 45 min |
| Apr 20, 2:18 AM CDT | Flash Flood Watch | SHV | 34 hr |
| Apr 26, 9:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 26, 10:21 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Apr 27, 1:35 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 28, 4:08 PM CDT | Flash Flood Watch | SHV | 51 hr |
| Apr 29, 1:58 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 29, 5:32 AM CDT | Severe Thunderstorm Warning | SHV | 43 min |
| Apr 29, 6:34 AM CDT | Special Weather Statement | SHV | 26 min |
| Apr 29, 6:48 AM CDT | Severe Thunderstorm Warning | SHV | 12 min |
| Apr 29, 9:46 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 29, 10:23 AM CDT | Flash Flood Warning | SHV | 12 hr |
| Apr 29, 12:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 29, 1:43 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 29, 5:42 PM CDT | Tornado Warning | SHV | 48 min |
| Apr 29, 5:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 29, 6:26 PM CDT | Tornado Warning | SHV | 15 min |
| Apr 29, 7:24 PM CDT | Flash Flood Warning | SHV | 10 hr |
| Apr 29, 8:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 29, 9:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 29, 11:15 PM CDT | Severe Thunderstorm Warning | SHV | 60 min |
| Apr 29, 11:25 PM CDT | Severe Thunderstorm Warning | SHV | 65 min |
| Apr 29, 11:32 PM CDT | Flash Flood Warning | SHV | 8 hr |
| Apr 29, 11:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 30, 12:58 AM CDT | Tornado Warning | SHV | 47 min |
| Apr 30, 1:27 AM CDT | Flash Flood Warning | SHV | 5 hr |
| Apr 30, 5:21 AM CDT | Areal Flood Warning | SHV | 6 hr |
| Apr 30, 10:26 AM CDT | River Flood Warning | LZK | 3 days |
| May 2, 3:17 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 9, 7:23 PM CDT | Tornado Watch | SPC | 8 hr |
| May 9, 8:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 9, 11:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 9, 11:27 PM CDT | Severe Thunderstorm Warning | SHV | 63 min |
| May 27, 4:41 AM CDT | Lake Wind Advisory | SHV | 16 hr |
| Jun 12, 9:17 PM CDT | Special Weather Statement | SHV | 43 min |
| Jun 14, 6:46 AM CDT | Areal Flood Advisory | SHV | 3 hr |
| Jun 14, 9:05 AM CDT | Areal Flood Advisory | SHV | 3 hr |
| Jun 14, 3:36 PM CDT | Heat Advisory | SHV | 4 days |
| Jun 17, 1:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 3:48 PM CDT | Heat Advisory | SHV | 5 days |
| Jul 14, 2:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 14, 3:05 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 14, 5:31 PM CDT | Severe Thunderstorm Warning | SHV | 59 min |
| Jul 14, 5:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 6:10 PM CDT | Severe Thunderstorm Warning | SHV | 65 min |
| Jul 17, 3:31 PM CDT | Heat Advisory | SHV | 6 days |
| Jul 23, 1:45 PM CDT | Special Weather Statement | SHV | 45 min |
| Jul 23, 2:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 24, 3:33 AM CDT | Heat Advisory | SHV | 15 hr |
| Jul 30, 3:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 30, 5:12 PM CDT | Special Weather Statement | SHV | 48 min |
| Aug 1, 3:56 AM CDT | Heat Advisory | SHV | 39 hr |
| Aug 2, 2:56 PM CDT | Heat Advisory | SHV | 10 days |
| Aug 4, 1:50 AM CDT | Excessive Heat Warning | SHV | 62 hr |
| Aug 6, 1:13 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 7, 2:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 12, 3:22 AM CDT | Heat Advisory | SHV | 16 hr |
| Aug 16, 9:41 AM CDT | Areal Flood Advisory | SHV | 3 hr |
| Aug 16, 10:46 AM CDT | Flash Flood Warning | SHV | 3 hr |
| Aug 25, 3:02 PM CDT | Flash Flood Warning | SHV | 3 hr |
| Aug 25, 3:52 PM CDT | Areal Flood Advisory | SHV | 3 hr |
| Sep 17, 3:55 PM CDT | Special Weather Statement | SHV | 65 min |
| Sep 17, 11:41 PM CDT | Special Weather Statement | SHV | 49 min |
| Nov 18, 2:46 PM CST | Lake Wind Advisory | SHV | 7 hr |
| Nov 19, 3:08 AM CST | Freeze Warning | SHV | 30 hr |
| Nov 27, 3:05 PM CST | Lake Wind Advisory | SHV | 26 hr |
| Nov 27, 9:17 PM CST | Lake Wind Advisory | SHV | 20 hr |
| Nov 28, 6:56 AM CST | Special Weather Statement | SHV | 49 min |
| Dec 16, 3:57 AM CST | Lake Wind Advisory | SHV | 60 hr |
| Dec 17, 5:45 PM CST | Mesoscale Discussion | SPC | 90 min |
| Dec 18, 3:53 AM CST | Hard Freeze Warning | SHV | 29 hr |
| Dec 19, 3:52 PM CST | Hard Freeze Warning | SHV | 16 hr |
| Dec 26, 4:48 PM CST | Areal Flood Advisory | SHV | 3 hr |
| Dec 26, 8:40 PM CST | Areal Flood Advisory | SHV | 65 min |
| Dec 26, 9:45 PM CST | Areal Flood Advisory | SHV | 2 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 | 12 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 14 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 6 |
| River Flood Warning | 2 |
| Flash Flood Watch | 4 |
| Areal Flood Advisory | 7 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 7 |
| Cold | |
| Freeze Warning | 2 |
| Hard Freeze Warning | 2 |
| Wind and dust | |
| Lake Wind Advisory | 22 |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.