Automated Heat Stress System
AHSS provides real-time heat stress flag conditions for Marine Corps Air Station Cherry Point based on the Wet Bulb Glove Temperature Index (WBGTYI). The system automatically collects, archives, and graphically displays heat stress related information that all units training aboard MCAS Cherry Point can access.
National Weather Service Safety Tips
National Weather Service Safety Tips
Destructive Weather
Destructive Weather Operations ASO 3140.1C
MCAS Cherry Point Destructive Weather Website
Thunderstorm Watches and Warnings
Thunderstorm Watch (T2): Destructive winds with Thunderstorms within 25 miles
Thunderstorm Watch (T1): Destructive winds with Thunderstorms within 10 miles
Lightning Warning (L10): Lightning with Thunderstorms within 10 miles: All Ordnance operations shall terminate when lightning is within 10 miles on MCAS Cherry Point.
Lightning Warning (L5): Lightning with Thunderstorms within 5 miles: All outdoor airfield operations shall terminate when lightning is within 5 miles on MCAS Cherry Point
Flag Conditions
Wearing body armor or NBC protective uniforms adds approximately 10 points to the measured WBGT. Limits of exposure should be adjusted accordingly.
White (No) Flag Condition. The WBGT index is < = 79.9°F. Continue to stay hydrated and be alert for changing weather conditions.
Green Flag Condition. The WBGT index is 80-84.9°F. Unrestricted physical activity may be carried out. Take at least 15 minutes of breaks each hour if working or exercising in direct sunlight. This is a guideline- please consult your SOP for your unit.
Yellow Flag Condition. The WBGT index is 85-87.9°F. Physical activity should be limited to those people who have been exercising in similar heat for a minimum of 10 days or more. Take at least 30 minutes of breaks each hour if working or exercising in direct sunlight .
Red Flag Condition. The WBGT index is 88-89.9°F. Physical activity should be limited to those people who have been exercising in similar heat for a minimum of 10 days or more. Take at least 30 minutes of breaks each hour if working or exercising in direct sunlight .
Black Flag Condition. The WBGT index is 90°F or higher. Vigorous outdoor exercise, regardless of conditioning or heat acclimatization, is not advisable. Take at least 45 minutes of breaks each hour if working or exercising in direct sunlight.
Heat Casualty Prevention
Heat Casualty Prevention: ASO 6200.2A w/ch1
OSHA Heat Stress link
MCAS Cherry Point Safety 