SF340 CAPTAIN IS CONFLICTED ABOUT OPTIONS ON RAMP WITH SEVERE WEATHER APPROACHING AND GND CREWS RESTRICTED FROM ACCESSING THE RAMP.

Narrative

WE LANDED JUST PRIOR TO A SEVERE WX EVENT. UPON ARR AT THE GATE WE FOUND THE RAMP CLOSED. THERE WAS LIGHTNING ON THE FIELD WITH MORE EXTREME WX APCHING. WITH A GAP OF ABOUT 3-5 MINS IN THE WX AND TWR ADVISED TORNADO ACTIVITY 5 MI S OF THE FIELD; I CALL OPS AGAIN TO GET A MARSHALLER TO PARK US AND QUICKLY ESCORT THE PAX INSIDE. OPS SAID THEY COULD NOT LET ANYONE ONTO THE RAMP; BUT IF I WANTED TO PARK MYSELF THEY WOULD OPEN THE DOOR. WITH NO CLR GUIDANCE ON A CONGESTED RAMP AND NO ABILITY TO SECURE THE ACFT AND ASSURE THE SAFETY OF PAX. I ELECTED TO KEEP THE PAX ON THE ACFT. AS THE MOST SEVERE OF THE WX APCHED THE FIELD; I CONTINUALLY TURNED THE NOSE OF THE ACFT INTO THE WIND. I FELT THIS GAVE THE BEST AERODYNAMIC ADVANTAGE AND SIGHT ADVANTAGE FOR ANY DEBRIS COMING TOWARD THE ACFT. DURING THE EVENT; SHEAR WAS RPTED AT 8 KTS OF LOSS. WE ALSO NOTED 40 KTS OF INDICATED AIRSPD ON A PARKED ACFT. THE STORM LASTED ABOUT 10 MINS AND FINALLY MAINT CAME AND PARKED US. THROUGHOUT THE EVENT I WAS CONFLICTED ABOUT MY OPTIONS; AND FELT TRAPPED BY EITHER DECISION. I AM WRITING THIS SAFETY RPT IN HOPES OF GENERATING SOME DISCUSSION ON AN EMER ACTION PLAN FOR OTHER ACFT IN THIS SITUATION.