Alert archive / Virginia / James City County
Weather alerts in James City County, Virginia, 2018
146 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
James City County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 146
- Warnings
- 27
- Watches
- 18
- Advisories
- 30
- Busiest month
- June26 alerts
- Busiest day
- June 23, 20186 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 James City County in 2018 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 2 minutes after it went out.
James City County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 1 | 0% | 2 | 100% | 2 min |
| Severe thunderstorm warnings | 11 | 9 | 18% | 4 | 50% | 31 min |
| Flash flood warnings | 3 | 3 | 0% | 1 | 100% | 138 min |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: tornado warnings | 47 | 15 | 68% | 28 | 86% | 17 min |
| NWS Wakefield, VA: severe thunderstorm warnings | 122 | 85 | 30% | 212 | 77% | 22 min |
| NWS Wakefield, VA: flash flood warnings | 37 | 25 | 32% | 65 | 88% | 97 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, 3:12 AM EST | Winter Storm Watch | AKQ | 24 hr |
| Jan 2, 9:44 PM EST | Winter Storm Warning | AKQ | 44 hr |
| Jan 3, 9:04 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 4, 12:48 PM EST | Winter Weather Advisory | AKQ | 5 hr |
| Jan 4, 2:30 PM EST | Wind Chill Advisory | AKQ | 20 hr |
| Jan 5, 4:20 AM EST | Wind Chill Advisory | AKQ | 33 hr |
| Jan 12, 9:26 AM EST | Special Weather Statement | AKQ | 49 min |
| Jan 12, 10:28 AM EST | Special Weather Statement | AKQ | 47 min |
| Jan 12, 11:01 PM EST | Special Weather Statement | AKQ | 44 min |
| Jan 16, 3:26 AM EST | Winter Weather Advisory | AKQ | 49 hr |
| Jan 23, 9:25 AM EST | Special Weather Statement | AKQ | 65 min |
| Feb 4, 4:54 PM EST | Special Weather Statement | AKQ | 66 min |
| Feb 4, 6:00 PM EST | Special Weather Statement | AKQ | 45 min |
| Feb 11, 3:52 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 20, 12:57 AM EST | Dense Fog Advisory | AKQ | 11 hr |
| Mar 1, 11:28 AM EST | High Wind Warning | AKQ | 40 hr |
| Mar 1, 11:28 AM EST | Wind Advisory | AKQ | 40 hr |
| Mar 6, 8:13 AM EST | Coastal Flood Advisory | AKQ | 33 hr |
| Mar 11, 3:54 PM EDT | Winter Weather Advisory | AKQ | 33 hr |
| Mar 20, 10:00 AM EDT | Special Weather Statement | AKQ | 15 min |
| Mar 20, 2:59 PM EDT | Coastal Flood Advisory | AKQ | 38 hr |
| Mar 21, 10:16 AM EDT | Coastal Flood Statement | AKQ | 21 hr |
| Mar 21, 4:12 PM EDT | Coastal Flood Statement | AKQ | 16 hr |
| Mar 25, 6:26 PM EDT | Special Weather Statement | AKQ | 49 min |
| Apr 4, 1:27 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 11, 3:46 PM EDT | Fire Weather Watch | AKQ | 28 hr |
| Apr 12, 2:00 AM EDT | Red Flag Warning | AKQ | 18 hr |
| Apr 15, 11:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 16, 2:01 AM EDT | Special Weather Statement | AKQ | 44 min |
| Apr 16, 2:22 AM EDT | Severe Thunderstorm Warning | AKQ | 38 min |
| Apr 16, 2:37 AM EDT | Severe Thunderstorm Warning | AKQ | 38 min |
| Apr 17, 5:06 PM EDT | Fire Weather Watch | AKQ | 22 hr |
| Apr 25, 1:40 PM EDT | Special Weather Statement | AKQ | 50 min |
| Apr 25, 2:30 PM EDT | Special Weather Statement | AKQ | 45 min |
| May 6, 9:18 PM EDT | Special Weather Statement | AKQ | 42 min |
| May 6, 9:48 PM EDT | Severe Thunderstorm Warning | AKQ | 42 min |
| May 9, 11:54 PM EDT | Dense Fog Advisory | AKQ | 6 hr |
| May 10, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 10, 4:53 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 10, 5:19 PM EDT | Severe Thunderstorm Warning | AKQ | 41 min |
| May 10, 6:44 PM EDT | Special Weather Statement | AKQ | 46 min |
| May 14, 5:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| May 14, 6:11 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 14, 7:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| May 14, 7:47 PM EDT | Severe Thunderstorm Warning | AKQ | 43 min |
| May 14, 8:15 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| May 17, 2:32 PM EDT | Flood Watch | AKQ | 51 hr |
| May 18, 2:21 PM EDT | Areal Flood Advisory | AKQ | 3 hr |
| May 18, 4:12 PM EDT | Areal Flood Warning | AKQ | 3 hr |
| May 18, 7:08 PM EDT | Areal Flood Warning | AKQ | 3 hr |
| May 22, 2:33 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 22, 7:20 PM EDT | Special Weather Statement | AKQ | 40 min |
| May 22, 7:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 27, 1:29 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 2, 3:20 AM EDT | Flash Flood Watch | AKQ | 39 hr |
| Jun 2, 4:49 PM EDT | Flash Flood Warning | AKQ | 86 min |
| Jun 3, 2:13 AM EDT | Flash Flood Warning | AKQ | 3 hr |
| Jun 3, 5:14 AM EDT | Areal Flood Warning | AKQ | 12 hr |
| Jun 3, 5:38 PM EDT | Areal Flood Warning | AKQ | 6 hr |
| Jun 3, 11:44 PM EDT | Areal Flood Warning | AKQ | 32 hr |
| Jun 10, 7:39 PM EDT | Special Weather Statement | AKQ | 51 min |
| Jun 10, 8:29 PM EDT | Special Weather Statement | AKQ | 46 min |
| Jun 11, 12:27 PM EDT | Coastal Flood Advisory | AKQ | 15 hr |
| Jun 17, 5:22 PM EDT | Special Weather Statement | AKQ | 38 min |
| Jun 18, 3:19 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jun 19, 5:41 PM EDT | Special Weather Statement | AKQ | 64 min |
| Jun 20, 2:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 22, 7:45 AM EDT | Flash Flood Watch | AKQ | 9 hr |
| Jun 22, 1:21 PM EDT | Special Weather Statement | AKQ | 39 min |
| Jun 22, 3:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 22, 4:18 PM EDT | Flash Flood Watch | AKQ | 8 hr |
| Jun 22, 7:58 PM EDT | Special Weather Statement | AKQ | 47 min |
| Jun 22, 8:14 PM EDT | Severe Thunderstorm Warning | AKQ | 46 min |
| Jun 22, 10:49 PM EDT | Special Weather Statement | AKQ | 41 min |
| Jun 23, 1:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 23, 1:57 PM EDT | Severe Thunderstorm Warning | AKQ | 48 min |
| Jun 23, 2:04 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 23, 5:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 24, 6:03 PM EDT | Severe Thunderstorm Warning | AKQ | 42 min |
| Jun 24, 6:39 PM EDT | Special Weather Statement | AKQ | 51 min |
| Jul 1, 2:45 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 11, 2:15 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 11, 2:49 PM EDT | Special Weather Statement | AKQ | 41 min |
| Jul 17, 3:10 PM EDT | Special Weather Statement | AKQ | 50 min |
| Jul 21, 9:27 AM EDT | Special Weather Statement | AKQ | 63 min |
| Jul 21, 10:36 AM EDT | Special Weather Statement | AKQ | 24 min |
| Jul 21, 5:52 PM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Jul 22, 11:20 AM EDT | Flash Flood Watch | AKQ | 23 hr |
| Jul 22, 12:12 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 3:24 PM EDT | Severe Thunderstorm Warning | AKQ | 51 min |
| Jul 23, 2:57 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 23, 3:06 PM EDT | Flash Flood Watch | AKQ | 52 hr |
| Jul 24, 6:44 AM EDT | Special Weather Statement | AKQ | 46 min |
| Jul 25, 7:29 AM EDT | Special Weather Statement | AKQ | 46 min |
| Jul 25, 8:17 AM EDT | Areal Flood Advisory | AKQ | 118 min |
| Jul 27, 4:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 27, 7:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 27, 8:48 PM EDT | Special Weather Statement | AKQ | 42 min |
| Jul 28, 10:54 PM EDT | Special Weather Statement | AKQ | 51 min |
| Jul 30, 12:41 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Jul 30, 2:21 PM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Aug 5, 5:54 PM EDT | Special Weather Statement | AKQ | 51 min |
| Aug 6, 6:25 PM EDT | Special Weather Statement | AKQ | 35 min |
| Aug 7, 3:27 PM EDT | Heat Advisory | AKQ | 28 hr |
| Aug 11, 6:28 PM EDT | Special Weather Statement | AKQ | 47 min |
| Aug 12, 6:11 PM EDT | Special Weather Statement | AKQ | 64 min |
| Aug 12, 6:16 PM EDT | Severe Thunderstorm Warning | AKQ | 44 min |
| Aug 12, 7:03 PM EDT | Special Weather Statement | AKQ | 57 min |
| Aug 21, 5:03 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 28, 3:16 PM EDT | Heat Advisory | AKQ | 28 hr |
| Aug 30, 3:34 PM EDT | Special Weather Statement | AKQ | 26 min |
| Aug 30, 5:18 PM EDT | Special Weather Statement | AKQ | 42 min |
| Aug 30, 9:27 PM EDT | Special Weather Statement | AKQ | 48 min |
| Sep 8, 8:44 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Sep 9, 12:19 PM EDT | Coastal Flood Advisory | AKQ | 16 hr |
| Sep 10, 5:42 AM EDT | Coastal Flood Advisory | AKQ | 21 hr |
| Sep 11, 8:25 AM EDT | Coastal Flood Advisory | AKQ | 10 hr |
| Sep 11, 5:18 PM EDT | Special Weather Statement | AKQ | 42 min |
| Sep 11, 5:56 PM EDT | Special Weather Statement | AKQ | 64 min |
| Sep 12, 4:18 PM EDT | Coastal Flood Watch | AKQ | 25 hr |
| Sep 13, 6:24 AM EDT | Coastal Flood Warning | AKQ | 54 hr |
| Sep 15, 12:31 AM EDT | Special Weather Statement | AKQ | 29 min |
| Sep 15, 4:51 AM EDT | Coastal Flood Advisory | AKQ | 24 hr |
| Sep 24, 9:09 PM EDT | Coastal Flood Advisory | AKQ | 47 hr |
| Sep 25, 12:08 PM EDT | Coastal Flood Statement | AKQ | 28 hr |
| Oct 10, 4:23 AM EDT | Flash Flood Watch | AKQ | 47 hr |
| Oct 10, 3:26 PM EDT | High Wind Warning | AKQ | 39 hr |
| Oct 10, 3:26 PM EDT | Wind Advisory | AKQ | 34 hr |
| Oct 11, 8:31 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Oct 11, 9:58 AM EDT | Tornado Watch | SPC | 13 hr |
| Oct 11, 12:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Oct 11, 3:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 11, 7:22 PM EDT | Tornado Warning | AKQ | 23 min |
| Oct 11, 8:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Oct 11, 8:12 PM EDT | Flash Flood Warning | AKQ | 6 hr |
| Oct 12, 1:46 AM EDT | Areal Flood Warning | AKQ | 9 hr |
| Oct 13, 5:52 AM EDT | Coastal Flood Advisory | AKQ | 16 hr |
| Nov 2, 6:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Nov 2, 10:54 PM EDT | Special Weather Statement | AKQ | 51 min |
| Nov 6, 12:11 PM EST | Mesoscale Discussion | SPC | 94 min |
| Nov 9, 3:23 PM EST | Freeze Warning | AKQ | 42 hr |
| Nov 14, 3:32 AM EST | Flood Watch | AKQ | 35 hr |
| Dec 5, 11:26 AM EST | Special Weather Statement | AKQ | 94 min |
| Dec 8, 2:50 PM EST | Winter Weather Advisory | AKQ | 37 hr |
| Dec 10, 5:18 AM EST | Coastal Flood Advisory | AKQ | 10 hr |
| Dec 13, 3:02 PM EST | Flood Watch | AKQ | 47 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 | 11 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 43 |
| Flooding | |
| Areal Flood Warning | 6 |
| Flash Flood Warning | 3 |
| Flash Flood Watch | 6 |
| Flood Watch | 3 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 4 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Watch | 1 |
| Coastal Flood Advisory | 10 |
| Coastal Flood Statement | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.