CheckWX is a tool to help pilots better visualize weather data.  It is not intended as a substitute for an official pre-flight weather briefing.

12:41:49 UTC

09CL SIGMET
Alta Sierra Airport
Grass Valley, California, USA
Convective SIGMET
Valid From
Jul-15 @ 10:55 UTC

Valid To
Jul-15 @ 12:55 UTC

Hazard
Convective

WSUS33 KKCI 151055 SIGW CONVECTIVE SIGMET...NONE OUTLOOK VALID 151255-151655 TS ARE NOT EXPD TO REQUIRE WST ISSUANCES.

Convective SIGMET
Valid From
Jul-15 @ 11:55 UTC

Valid To
Jul-15 @ 13:55 UTC

Hazard
Convective

WSUS33 KKCI 151155 SIGW CONVECTIVE SIGMET...NONE OUTLOOK VALID 151355-151755 TS ARE NOT EXPD TO REQUIRE WST ISSUANCES.