624 NOUS42 KWNO 160850 ADMSDM SENIOR DUTY METEOROLOGIST NWS ADMINISTRATIVE MESSAGE NWS NCEP CENTRAL OPERATIONS COLLEGE PARK MD 0850Z THU APR 16 2026 CRITICAL WEATHER DAY STATUS... Critical Weather Day is in effect until 1600Z Fri April 17 in support of tropical cyclone operations in the Northern Mariana Islands. Also, the need for CWD is being monitored in support of severe weather operations from portions of the Southern Plains to the Middle and Upper Mississippi Valley on Friday into Friday night. CRITICAL WEATHER OUTLOOK... Thursday - Critical...Tropical Cyclone. Friday - Critical...Tropical Cyclone. Caution...Severe Thunderstorms. Saturday - None. Churchill/SDM/NCO/NCEP