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VFR/IFR-SIERRA
 TURBULENCE-TANGO
 ICING-ZULU
 Convective SIGMETs
Any Convective SIGMET implies severe or greater turbulence, severe icing, and low-level wind shear conditions. HELP | CLIMATOLOGY
  • Convective SIGMET (valid for 2-hours & issued hourly at Hour+55)

  • Severe surface weather including:
    • surface winds greater than or equal to 50 knots
    • hail at the surface greater than or equal to 3/4 inches in diameter
    • tornadoes
Click to enlarge, or mouse-over to load SPC Convective Activity Chart Click to enlarge, or mouse-over to load current RADAR ECHO Tops Click to enlarge, or mouse-over to load 2HR CCFP Click to enlarge, or mouse-over to load 4HR CCFP Click to enlarge, or mouse-over to load 6HR FCST CCFP Click to enlarge, or mouse-over to load current NWS Watches/Warnings Click to enlarge, or mouse-over to load Northwest Lightning Probability Click to enlarge, or mouse-over to load Southwest Lightning Probability Click to enlarge, or mouse-over to load SPC Severe Mesoscale Discussion Areas Click to enlarge, or mouse-over to load current Convective SIGMETs
current Convective SIGMETs

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Fremont, CA 94536-6531

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