You are on the experimental live-updating severe weather page. If you experience problems, you can use the regular versions of the tornado tracker and severe weather tracker maps.

Read more about the gotchas.

skip ahead to the tornado outlook and current tornado watches →

live severe weather map

Note: if you see this, live updates are not working

Map Warning Start Warning End Phenomena Warning Summary Warning Counties Warning States Map
show me 2017-08-23 04:29:00 UTC EXPIRED
severe thunderstorm
At 1229 AM EDT, a severe thunderstorm was located over Woodbury Heights, or near Gloucester City, moving east at 45 mph.  
show me the full warning
Burlington / Camden / Gloucester / Ocean / Philadelphia NJ / PA show me
show me 2017-08-23 04:28:00 UTC 2017-08-23 06:30:00 UTC
special marine
AT 1226 AM EDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE EXTENDING FROM 29 NM NORTH OF TIDAL BASIN TO 17 NM NORTHWEST OF KEY BRIDGE...MOVING EAST AT 30 KNOTS. ADDITIONAL THUNDERSTORMS WERE LOCATED FROM EDGEWOOD TO ABERDEEN...STRETCHING WEST OF BALTIMORE CITY.  
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show me
show me 2017-08-23 04:13:00 UTC EXPIRED
severe thunderstorm
At 1213 AM EDT, a severe thunderstorm was located over Wolcott, moving east at 45 mph.  
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Hartford / Tolland / Windham CT show me
show me 2017-08-23 03:56:00 UTC EXPIRED
special marine
AT 1156 PM EDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE EXTENDING FROM 6 NM SOUTHEAST OF FREEPORT TO CAPE ELIZABETH TO NEAR KENNEBUNKPORT...MOVING EAST AT 45 KNOTS.  
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show me
show me 2017-08-23 03:46:00 UTC EXPIRED
severe thunderstorm
At 1146 PM EDT, severe thunderstorms were located along a line extending from near Medford to near Lindenwold to Chester Township to Fair Hill, moving east at 30 mph.  
show me the full warning
New Castle / Atlantic / Burlington / Camden / Gloucester / Ocean / Salem / Chester / Delaware / Montgomery / Philadelphia DE / NJ / PA show me
show me 2017-08-23 03:39:00 UTC EXPIRED
special marine
AT 1138 PM EDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE EXTENDING FROM 25 NM NORTHEAST OF PEA PATCH ISLAND TO 8 NM EAST OF REEDY POINT TO 9 NM WEST OF STONY POINT...MOVING EAST AT 40 KNOTS.  
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show me
show me 2017-08-23 03:33:00 UTC EXPIRED
severe thunderstorm
At 1132 PM EDT, severe thunderstorms were located along a line extending from near Rindge to Granby, moving east at 35 mph.  
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Franklin / Hampden / Hampshire / Middlesex / Worcester MA show me
show me 2017-08-23 03:08:00 UTC EXPIRED
severe thunderstorm
At 1107 PM EDT, a severe thunderstorm was located near Torrington, moving east at 40 mph.  
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Litchfield CT show me
show me 2017-08-23 02:58:00 UTC EXPIRED
severe thunderstorm
At 1058 PM EDT, severe thunderstorms were located along a line extending from Pipersville to Hollywood Beach, moving east at 40 mph.  
show me the full warning
Kent / New Castle / Cecil / Kent / Burlington / Camden / Cumberland / Gloucester / Mercer / Middlesex / Salem / Bucks / Chester / Delaware DE / MD / NJ / PA show me
show me 2017-08-23 02:58:00 UTC EXPIRED
severe thunderstorm
At 958 PM CDT, a severe thunderstorm was located over Midland International Air and Space Port, or 7 miles west of Midland, moving south at 20 mph.  
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Ector / Midland TX show me
show me 2017-08-23 02:27:00 UTC EXPIRED
severe thunderstorm
At 1026 PM EDT, severe thunderstorms were located along a line extending from near Plainfield to near Belle Mead to Green Lane, moving east at 20 mph. Wind damage has been reported in Hunterdon and Somerset Counties in association with these storms.  
show me the full warning
Hunterdon / Mercer / Middlesex / Monmouth / Somerset / Bucks / Montgomery NJ / PA show me
show me 2017-08-23 02:25:00 UTC EXPIRED
severe thunderstorm
At 1025 PM EDT, severe thunderstorms were located along a line extending from 13 miles northwest of Tamworth to near Moultonborough to near Laconia to near Warner, moving east at 45 mph.  
show me the full warning
Belknap / Carroll / Merrimack / Strafford NH show me
show me 2017-08-23 02:25:00 UTC EXPIRED
special marine
AT 1025 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR SOUTH AMBOY...MOVING EAST AT 30 KNOTS.  
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show me
show me 2017-08-23 02:14:00 UTC EXPIRED
severe thunderstorm
At 1014 PM EDT, a severe thunderstorm was located near Bel Air North, or 10 miles northwest of Aberdeen, moving east at 30 mph.  
show me the full warning
Harford MD show me
show me 2017-08-23 02:13:00 UTC EXPIRED
special marine
AT 1012 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 10 NM NORTH OF HAVRE DE GRACE...MOVING EAST AT 45 KNOTS.  
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show me
show me 2017-08-23 02:08:00 UTC EXPIRED
severe thunderstorm
At 1007 PM EDT, severe thunderstorms were located along a line extending from near Guilford Center to near Housatonic, moving east at 35 mph.  
show me the full warning
Franklin / Hampden / Hampshire MA show me
show me 2017-08-23 02:08:00 UTC EXPIRED
severe thunderstorm
At 1008 PM EDT, severe thunderstorms were located along a line extending from 6 miles southeast of Newport to near Nelson to near Troy to near Hinsdale, moving east at 45 mph.  
show me the full warning
Cheshire / Hillsborough / Merrimack / Sullivan NH show me
show me 2017-08-23 02:07:00 UTC EXPIRED
severe thunderstorm
At 1007 PM EDT, severe thunderstorms were located along a line extending from near Elverson to near Pleasant Hills, moving east at 55 mph.  
show me the full warning
New Castle / Cecil / Kent / Gloucester / Salem / Berks / Bucks / Chester / Delaware / Montgomery / Philadelphia DE / MD / NJ / PA show me
show me 2017-08-23 02:04:00 UTC EXPIRED
severe thunderstorm
At 1003 PM EDT, a severe thunderstorm was located near Rumford, moving northeast at 35 mph.  
show me the full warning
Franklin / Oxford ME show me
show me 2017-08-23 01:52:00 UTC EXPIRED
severe thunderstorm
At 952 PM EDT, severe thunderstorms were located along a line extending from 10 miles southeast of Piermont to Groton to near Danbury to near New London to 6 miles southeast of Newport, moving east at 40 mph.  
show me the full warning
Belknap / Carroll / Grafton / Merrimack / Sullivan NH show me

If you're looking for older warnings, we now have an experimental tornado warning archive for today's tornado warnings and the past 48 hours of warnings.

Older warnings are coming soon.

visit the archive now →

← go back to the current warnings

Today's tornado outlook and current severe weather watches

today's tornado threat

complete severe weather outlook including tornado, wind, and hail threats

current severe weather watches

Tornado watches are red. Severe thunderstorm watches are blue.

things you should know about this experimental live-updating page

  1. Warnings are delayed. If you are currently affected by severe storms, you should also be paying attention to a local source of information (tv, radio, etc), or have a weather radio, because information on this site can be delayed enough that it could cause you to lose valuable lead time.
  2. The map sometimes breaks in odd ways. At this time, I'm not sure of the actual cause, but every so often, the mapping software will basically lose track of the actual center of the map. It's most obvious when part of the map is black (it's not loading the background). Also, you may notice this bug when you zoom to a specific location or warning, and the map is not centered properly.
  3. How to fix: The easiest thing is to reload the page. Otherwise, you can try the following to get the map to fix itself:

    1. enter/exit fullscreen map mode
    2. resize the browser window (if a desktop)
    3. change the orientation of the screen (if a tablet/mobile device)
    4. add a new location marker (you can delete the new marker later)

  4. There is experimental voice notifications support. To my knowledge, this only works in the Chrome and Safari browsers. Chrome's default English voice will randomly stop with long text, so I've tried to break up the text into smaller chunks so this doesn't happen. However, this can lead to awkward pauses when it's speaking.
  5. There is now support for tracking custom locations. If you have voice notifications enabled, it will tell you which locations are impacted when it reads new warnings.
  6. Radar on the map will automatically refresh every 5 minutes.
  7. This page is under active development. And things tend to break. A lot. If you think something is wrong, you can reload the page. You can also use the normal severe weather map page which has the same data but does not automatically update.

Remember to check out severe weather outlook for more severe weather and cyclocane for hurricanes.


We've got a new experiment: tornado solitaire.

On the Tornado Solitaire website you can play your favorite card games whilst keeping tabs on the US severe weather warnings.

classic tornado solitaire


tornado hq is another wicked weather site by hayley