Expires:No;;638231 NOAK49 PAFG 050130 PNSAFG AKZ838>844-051330- Public Information Statement National Weather Service Fairbanks AK 530 PM AKDT Sat May 4 2024 ...2024 SPRING GREEN UP ON CHENA RIDGE... GREEN UP ON CHENA RIDGE AS VIEWED FROM THE NATIONAL WEATHER SERVICE FORECAST OFFICE ON THE UNIVERSITY OF ALASKA FAIRBANKS CAMPUS HAS OFFICIALLY BEEN DECLARED TODAY...MAY 4 2024. LAST YEAR GREEN UP OCCURRED ON THE 16TH OF MAY. THE MEAN DATE FOR GREEN UP ON THE CHENA RIDGE IS THE 9TH OF MAY. THE EARLIEST GREEN UP ON RECORD FOR THE CHENA RIDGE WAS ON APRIL 26TH 2016 WHILE THE LATEST GREEN UP ON RECORD WAS MAY 26TH 2013. GREEN UP IN INTERIOR ALASKA IS THE SPROUTING OF TREE LEAVES...BIRCH AND ASPEN...IN THE SPRING. IN MANY YEARS...IT IS OFTEN QUITE ABRUPT...WITH ENTIRE HILLSIDES LEAFING OUT IN JUST A DAY OR TWO. GREEN UP OCCURS EARLIEST ON THE LOWER SLOPES OF SOUTH FACING HILLSIDES...SPREADING RAPIDLY DOWN TO THE VALLEY FLOOR AND MORE SLOWLY UPSLOPE. $$ THORNE