National Weather Service United States Department of Commerce

Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

 
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Aviation Advisories
Before departure, call 1-800-WX-BRIEF for latest weather and file flight plans.
Advisories Observations Forecasts Aviation Info
AWC - Icing/Turbulence/Freezing Level and Volcanic Ash
Icing | Turbulence | Freezing Level | Volcanic Ash
Center Weather Service Units
Seattle | Oakland | Los Angeles | Salt Lake | Albuquerque | Denver
CWSU Advisories
Seattle | Oakland | Los Angeles | Salt Lake | Albuquerque | Denver
Airmets/Sigmets and Convective Sigmets
Convective-SIGMETS
GRAPHICAL-AIRMETS
AIRMET & SIGMET WEBPAGE
TEXT Products Zulu (Icing) Sierra (IFR and Mountain Obscuration) Tango (Turbulence)