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.

22:30:59 UTC

99CA SIGMET
San Antonio Regional Hospital Heliport
Upland, California, USA
Convective SIGMET
Valid From
Apr-19 @ 20:55 UTC

Valid To
Apr-19 @ 22:55 UTC

Hazard
Convective

WSUS33 KKCI 192055 SIGW CONVECTIVE SIGMET...NONE OUTLOOK VALID 192255-200255 TS ARE NOT EXPD TO REQUIRE WST ISSUANCES.

Convective SIGMET
Valid From
Apr-19 @ 21:55 UTC

Valid To
Apr-19 @ 23:55 UTC

Hazard
Convective

WSUS33 KKCI 192155 SIGW CONVECTIVE SIGMET...NONE OUTLOOK VALID 192355-200355 TS ARE NOT EXPD TO REQUIRE WST ISSUANCES.