Special marine warning
A special marine warning (SAME code SMW) is a warning issued by the U.S. National Weather Service for potentially hazardous marine weather conditions usually of short duration (up to 2 hours) producing sustained marine thunderstorm winds or associated gusts of 34 knots or greater; or hail 3/4 inch or more in diameter; or waterspouts affecting areas included in a coastal waters forecast, a nearshore marine forecast, or a Great Lakes open lakes forecast that is not adequately covered by existing marine warnings. It is also used for short duration mesoscale events such as a strong cold front, gravity wave, squall line, etc., lasting less than 2 hours and producing winds or gusts of 34 knots or greater.[1]
References
- ^ "Special Marine Warning Definition". NWS. Retrieved 28 September 2013.
- v
- t
- e
storms
Thunderstorm |
|
---|---|
Tornado |
|
Marine thunderstorm |
|
weather
Advisories |
|
---|---|
Winter storm |
|
Blizzard/blowing snow |
|
Heavy snow | |
Lake-effect snow | |
Snow squall | |
Ice | |
Avalanche |
|
cyclones
Tropical storms | |
---|---|
Hurricanes | |
Typhoons |
|
Cyclones |
|
Storm surge |
- Hurricane local statement
- Tropical storm local statement
- Tropical depression local statement
Flood | |
---|---|
Flash flood | |
Coastal flood | |
Lakeshore flood |
|
River flood | |
Urban and small stream flood |
temperature
Heat index | |
---|---|
Wind chill | |
Extreme cold | |
Freeze |
|
and
coastal
weather
Marine winds | |
---|---|
Gale | |
Storm | |
Hurricane-force wind | |
Hazardous seas | |
Freezing spray |
- Marine weather statement
- Rip current statement
- Beach hazards statement
Advisory-force winds | |
---|---|
Gale-force winds | |
Major hurricane-force winds |
particulates
Dust/sand |
|
---|---|
Fog/Smoke | |
Ash |
|
Air pollution |
|
- Red flag warning
- Fire warning
- Evacuation immediate
- Fire weather watch
used by NWS
- Beaufort (wind)
- Enhanced Fujita (tornadoes)
- Saffir–Simpson scale (tropical cyclones)
![]() | This meteorology–related article is a stub. You can help Wikipedia by expanding it. |
- v
- t
- e