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.

00:55:58 UTC

63WA SIGMET
Boyle R & D Airport
Colbert, Washington, USA
Convective SIGMET
Valid From
May-27 @ 23:55 UTC

Valid To
May-28 @ 01:55 UTC

Hazard
Convective

WSUS33 KKCI 272355 SIGW CONVECTIVE SIGMET...NONE OUTLOOK VALID 280155-280555 TS ARE NOT EXPD TO REQUIRE WST ISSUANCES.