The University of Tulsa

Mountain Cedar Pollen Forecast

 

Date Issued: 17 Dec 2003

 

Mountain Cedar Location(s): Arbuckle Mountains, OK

 

Regional Weather: Wednesday and Thursday, Dec 17 and 18. TX/OK: : Dry, clear, and cool weather will remain in place for the next several days. In the south, daytime temperatures will be in the 60s during the day and in the 30s at night. In Oklahoma, daytime temperatures will range from the upper 40s to 60s and night-time temperatures will be in the upper 20s to low 30s. Winds will be from the west, southwest on Wednesday but shifting back to the northwest as a reinforcing cold front moves across the region on Thursday. Conditions will remain dry with this second front.

 

Trajectory weather: The air mass trajectories move from the Arbuckle Mountains to the east over eastern Oklahoma and Arkansas today and then turn southeast as the reinforcing front moves into the southern plains. Tomorrow the air mass trajectories will move south over east Texas. Conditions at the sources will be cool this morning and tomorrow but warming in the afternoons. Atmospheric conditions are marginal for pollen entrainment and transport downwind and will get worse as the front moves throught the area. Tomorrow conditions will continue marginal for entrainment and transport.

 

OUTLOOK: *** Moderate Threat *** Mixed conditions for pollen release. Sunny dry conditions will occur today and tomorrow, but temperatures are low this morning and will also be low tomorrow morning. This will inhibit morning pollen release, but moderate amounts of pollen release should occur in the afternoons. Tomorrow the cold air will move the air mass trajectories along the ground, which usually results in the deposition of entrained particles as they travel. Pollen release that does occur with impact the communities in eastern Oklahoma and Arkansas today and east Texas (including Dallas) tomorrow. 

 

Trajectory Start (s) (shown by black star on map): Sulfur, OK.