Alert archive / Virginia

Weather alerts in Charles City County, Virginia

3,066 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Charles City County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
3,066
Warnings
667
Watches
490
Advisories
470
Busiest year
2011204 alerts
Average year
81over 38 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

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

From 2008 to 2025, 100% of tornado reports in Charles City County fell inside a tornado warning issued on average 6 minutes before, and 87% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200840100%0
200920100%0
201010100%0
20113167%0
201220100%0
20142150%0
201510100%0
201670100%0
201710100%0
20193167%1100%6 min
20204175%0
202210100%0

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008161225%580%16 min
2009141029%0
201015147%4100%36 min
2011302033%560%13 min
2012231917%560%19 min
201310820%0
2014131023%0
201512925%0
201611827%367%37 min
201712925%2100%31 min
2018121017%1100%30 min
2019171512%5100%22 min
2020171418%1100%38 min
2021151127%5100%19 min
2022161413%3100%19 min
202311109%1100%31 min
202418176%9100%21 min
2025252116%5100%33 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2009110%0
2011440%1100%81 min
20134250%2100%105 min
201410100%0
201610100%0
20185420%0
2019220%2100%81 min
20203233%0
2021440%1100%36 min
20234325%0
202410820%2100%48 min
202511109%0

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Sep 22, 2:57 PM EDTCoastal Flood WarningAKQ5 days
Sep 12, 5:47 PM EDTFlash Flood WarningAKQ3 hr
Sep 12, 4:43 PM EDTTornado WarningAKQ32 min
Sep 4, 6:24 PM EDTSevere Thunderstorm WarningAKQ51 min
Sep 4, 5:50 PM EDTSevere Thunderstorm WarningAKQ40 min
Aug 16, 10:59 PM EDTSevere Thunderstorm WarningAKQ46 min
Aug 16, 10:06 PM EDTFlash Flood WarningAKQ3 hr
Aug 16, 8:42 PM EDTSevere Thunderstorm WarningAKQ48 min
Aug 14, 10:12 PM EDTSevere Thunderstorm WarningAKQ48 min
Aug 14, 9:37 PM EDTSevere Thunderstorm WarningAKQ38 min
Aug 10, 7:01 PM EDTSevere Thunderstorm WarningAKQ44 min
Aug 10, 6:09 PM EDTSevere Thunderstorm WarningAKQ51 min

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.