Alert archive / Mississippi / Harrison County

Weather alerts in Harrison County, Mississippi, 2014

94 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Harrison County and its neighbors

Each county as a circle sized by its count in 2014. Tap one for its archive.

Alerts
94
Warnings
36
Watches
13
Advisories
6
Busiest month
April24 alerts
Busiest day
April 29, 20148 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 Harrison County in 2014 had a tornado report inside them.

Harrison County, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings20100%0
Severe thunderstorm warnings80100%0
Flash flood warnings9367%863%97 min

Each office's whole area, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS New Orleans, LA: tornado warnings39685%1283%15 min
NWS New Orleans, LA: severe thunderstorm warnings932177%7056%14 min
NWS New Orleans, LA: flash flood warnings461274%3259%77 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.

IssuedProductOfficeLasted
Jan 10, 11:41 PM CSTMesoscale DiscussionSPC2 hr
Jan 11, 3:18 AM CSTMesoscale DiscussionSPC117 min
Jan 17, 1:58 PM CSTFire Weather WatchLIX14 hr
Jan 18, 4:22 AM CSTRed Flag WarningLIX14 hr
Jan 28, 5:23 AM CSTMesoscale DiscussionSPC5 hr
Jan 28, 10:46 AM CSTMesoscale DiscussionSPC6 hr
Feb 4, 7:58 PM CSTMesoscale DiscussionSPC3 hr
Feb 12, 6:09 PM CSTRiver Flood WarningLIX16 hr
Feb 20, 7:22 PM CSTTornado WatchSPC8 hr
Feb 20, 9:56 PM CSTMesoscale DiscussionSPC2 hr
Feb 23, 3:35 AM CSTMesoscale DiscussionSPC2 hr
Feb 26, 12:56 AM CSTFlash Flood WarningLIX94 min
Mar 16, 4:51 AM CDTTornado WatchSPC7 hr
Mar 16, 6:27 AM CDTAreal Flood AdvisoryLIX2 hr
Mar 16, 6:31 AM CDTMesoscale DiscussionSPC89 min
Mar 16, 7:24 AM CDTSevere Thunderstorm WarningLIX51 min
Mar 25, 11:39 AM CDTRed Flag WarningLIX7 hr
Mar 28, 9:00 AM CDTFlash Flood WarningLIX3 hr
Mar 28, 4:20 PM CDTRiver Flood WarningLIX64 hr
Mar 28, 4:20 PM CDTRiver Flood WarningLIX42 hr
Apr 5, 3:34 PM CDTMesoscale DiscussionSPC86 min
Apr 6, 6:24 PM CDTMesoscale DiscussionSPC2 hr
Apr 6, 6:56 PM CDTTornado WatchSPC8 hr
Apr 6, 10:10 PM CDTMesoscale DiscussionSPC2 hr
Apr 7, 12:50 AM CDTMesoscale DiscussionSPC25 min
Apr 7, 1:16 AM CDTTornado WatchSPC7 hr
Apr 7, 3:16 AM CDTMesoscale DiscussionSPC119 min
Apr 7, 5:42 AM CDTMesoscale DiscussionSPC2 hr
Apr 14, 1:11 PM CDTSevere Thunderstorm WatchSPC10 hr
Apr 14, 3:36 PM CDTMesoscale DiscussionSPC2 hr
Apr 14, 6:25 PM CDTAreal Flood AdvisoryLIX110 min
Apr 14, 7:00 PM CDTMesoscale DiscussionSPC60 min
Apr 14, 10:18 PM CDTRiver Flood WarningLIX41 hr
Apr 14, 10:19 PM CDTRiver Flood WarningLIX33 hr
Apr 15, 2:16 PM CDTRiver Flood WarningLIX14 hr
Apr 28, 7:59 PM CDTTornado WatchSPC11 hr
Apr 29, 2:14 AM CDTFlash Flood WarningLIX3 hr
Apr 29, 9:08 AM CDTRiver Flood WarningLIX48 hr
Apr 29, 9:08 AM CDTRiver Flood WarningLIX49 hr
Apr 29, 12:46 PM CDTTornado WatchSPC10 hr
Apr 29, 1:09 PM CDTAreal Flood AdvisoryLIX111 min
Apr 29, 4:00 PM CDTSevere Thunderstorm WarningLIX45 min
Apr 29, 6:39 PM CDTFlash Flood WarningLIX2 hr
Apr 29, 8:41 PM CDTFlash Flood WarningLIX94 min
May 9, 7:57 PM CDTAreal Flood AdvisoryLIX2 hr
May 9, 8:25 PM CDTSevere Thunderstorm WarningLIX35 min
May 9, 8:38 PM CDTFlash Flood WarningLIX4 hr
May 9, 9:49 PM CDTFlash Flood WarningLIX3 hr
May 9, 11:17 PM CDTRiver Flood WarningLIX49 hr
May 10, 12:28 AM CDTFlash Flood WarningLIX2 hr
May 10, 2:41 AM CDTRiver Flood WarningLIX4 days
May 10, 2:41 AM CDTRiver Flood WarningLIX42 hr
May 11, 5:44 PM CDTAreal Flood AdvisoryLIX2 hr
May 14, 11:07 AM CDTAreal Flood AdvisoryLIX113 min
May 14, 11:41 AM CDTFlash Flood WarningLIX3 hr
May 28, 9:26 AM CDTMesoscale DiscussionSPC64 min
May 28, 9:47 AM CDTTornado WatchSPC7 hr
May 28, 1:26 PM CDTMesoscale DiscussionSPC64 min
May 28, 4:02 PM CDTMesoscale DiscussionSPC58 min
May 28, 10:17 PM CDTRiver Flood WarningLIX4 days
May 28, 10:17 PM CDTRiver Flood WarningLIX4 days
May 29, 1:59 PM CDTMesoscale DiscussionSPC61 min
May 30, 9:17 AM CDTMesoscale DiscussionSPC118 min
Jun 2, 9:54 AM CDTRiver Flood WarningLIX33 hr
Jun 2, 9:26 PM CDTRiver Flood WarningLIX22 hr
Jun 10, 10:10 AM CDTMesoscale DiscussionSPC65 min
Jun 10, 10:58 AM CDTSevere Thunderstorm WatchSPC8 hr
Jun 20, 3:18 PM CDTSevere Thunderstorm WarningLIX42 min
Jun 24, 5:59 PM CDTSevere Thunderstorm WarningLIX31 min
Jul 11, 2:34 PM CDTSevere Thunderstorm WarningLIX56 min
Jul 18, 12:53 PM CDTMesoscale DiscussionSPC3 hr
Aug 6, 6:00 PM CDTSevere Thunderstorm WarningLIX45 min
Sep 8, 4:30 PM CDTSpecial Weather StatementLIX60 min
Sep 16, 1:58 PM CDTSpecial Weather StatementLIX62 min
Oct 3, 5:48 AM CDTSpecial Weather StatementLIX57 min
Oct 13, 1:39 PM CDTTornado WatchSPC8 hr
Oct 13, 4:41 PM CDTTornado WarningLIX19 min
Oct 13, 5:08 PM CDTTornado WarningLIX22 min
Oct 13, 5:45 PM CDTMesoscale DiscussionSPC90 min
Oct 13, 7:54 PM CDTSevere Thunderstorm WarningLIX66 min
Oct 27, 5:15 AM CDTSpecial Weather StatementLIX45 min
Oct 27, 6:04 AM CDTSpecial Weather StatementLIX41 min
Nov 16, 5:50 PM CSTMesoscale DiscussionSPC85 min
Nov 16, 8:43 PM CSTMesoscale DiscussionSPC62 min
Nov 16, 9:49 PM CSTTornado WatchSPC7 hr
Nov 17, 1:57 AM CSTSpecial Weather StatementLIX33 min
Nov 17, 2:21 AM CSTMesoscale DiscussionSPC114 min
Nov 23, 7:23 AM CSTSpecial Weather StatementLIX52 min
Dec 23, 4:19 AM CSTMesoscale DiscussionSPC116 min
Dec 23, 7:39 AM CSTMesoscale DiscussionSPC3 hr
Dec 23, 9:30 AM CSTTornado WatchSPC11 hr
Dec 23, 11:33 AM CSTMesoscale DiscussionSPC87 min
Dec 23, 2:57 PM CSTMesoscale DiscussionSPC93 min
Dec 23, 4:59 PM CSTMesoscale DiscussionSPC61 min

By product

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

ProductAlerts
Severe storms
Severe Thunderstorm Warning8
Tornado Warning2
Severe Thunderstorm Watch2
Tornado Watch10
Mesoscale Discussion32
Special Weather Statement7
Flooding
Flash Flood Warning9
River Flood Warning15
Areal Flood Advisory6
Fire
Red Flag Warning2
Fire Weather Watch1

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 29, 20148alerts
  2. May 10, 20148alerts
  3. December 23, 20146alerts
  4. April 7, 20145alerts
  5. March 16, 20144alerts
  6. April 15, 20144alerts
  7. May 28, 20144alerts
  8. October 13, 20144alerts
  9. November 17, 20144alerts
  10. March 28, 20143alerts

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20132015

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.