Friday, January 9, 2009

New Key from the RFS

RFS Winter Weather Key, Have a seperate Severe summer weather blog.

I went very complex with this, these are my boundaries as for the Central MD area

Winter Storm Watch: 4+ inches out 36 hours
Winter Storm Warning: 4-6 inches+ <24 hours out
Heavy Snow Watch: 8+ Inches 36 hours out
Heavy Snow Warning: 8+ inches <24 hours out
Blizzard Watch: Snow, 25mph+ winds for more than 2 hours reducing visibilities, 36 hours out
Blizzard Warning: Snow, 25+mph winds for more than 2 hours reducing visibilites, <24 hours out
Ground Blizzard Warning: Extreme blowing snow causing low visibilites
Whiteout Warning: Snow falling at 2+ inch rates or blowing slow causing near 0 visibility.
Ice Storm Watch: 0.20 inches+ of ice out 36 hours
Ice Storm Warning: 0.20 inches+ of ice <24 hours out
Sleet Watch: 2+ inches of sleet 36 hours out
Sleet Warning: 2+ inches of sleet <24 hours out
Winter Weather Advisory: Winter weather causing travel delays, not meeting Warning criteria <18 hours out
Snow Advisory OR Blowing Snow Advisory: 1-4 inches of snow/blowing snow <18 hours out
Freezing Rain Advisory: Freezing Rain disrupting travel, up to 0.19 inches of accumulation
Freezing Fog Advisory/Dense Fog Advisory: Frozen Fog causing low visibilities/ or regular fog
doing the same
Lake Effect Snow Advisories/Watches/Warnings: Unlikely, but accumulations from lake effect snow varying.
Ryan Forecasting Statement: Possible Winter Weather Affecting the area

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