NZUS99 KBOU 201204
SYNHAB

COLORADO SYNOPSIS VALID 20/1200Z-21/0000Z MID AND HIGH LEVEL 
MOISTURE WILL MOVE ACROSS COLORADO IN WESTERLY FLOW ALOFT. A WEAK 
COLD FRONT WILL MOVE SOUTH ACROSS EASTERN COLORADO. AIRMASS BECOMING 
SLIGHTLY UNSTABLE.