The University of Tulsa

Mountain Cedar Pollen Forecast

Metropolitan Area

Exposure Risk

Oklahoma City

Low - Fri, Mod - Sat, Mod to High on Sun


Low - Fri, Mod - Sat, Mod to High on Sun

St. Louis MO



Date Issued: 24 Dec 2004

Mountain Cedar Location(s): Arbuckle Mountains, OK

Regional Weather: Fri, Sat, Sun, Dec 24-26, 2004. TX/OK: Another cold day throughout the region on Friday. Daytime highs will be in the 30s and lows Friday night will be in the teens and low 20s. Winds will be variable in the region with southerly winds returning on Friday afternoon in Oklahoma. Skies will be clear to partly cloudy in Oklahoma and mostly cloudy in Texas. A warming trend will start Christman day and extend to mid-week. Temperatures on Satuday will be in the upper 40s and 50s and mid to upper 50s on Sunday. Winds will be moderate and from the south or southwest.


Trajectory weather: The air mass trajectories on Friday move from the Arbuckle Mountains to the northeast over eastern Oklahoma and Missouri. The trajectories show poor characteristics for entrainment and travel of pollen downwind with the cold air sinking to the ground. Sunny skies to partly cloudy skies will prevail across the region but low temperatures will occur at the source site today with below freezing conditions expected overnight with little pollen release expected. On Saturday, temperatures at the source warm tomorrow into the favorable range in the afternoon. Trajectories will move to the northeast on Saturday and north on Sunday. Conditions for pollen release and transport improve over the weekend.

OUTLOOK: *** Low Threat Friday, Moderate Saturday and Moderate to High on Sunday *** unfavorable conditions for pollen release on Friday. Sunny dry conditions will occur today, but low temperatures will reduce the chances of any pollen release making for unfavorable conditions. Cold temperatures tonight and warming (20 + degrees) is expected tomorrow. Conditions will be favoarable for pollen release on Saturday in the afternoon and continue favorable on Sunday. 

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

Prepared by: Estelle Levetin (Faculty of Biological Science, The University of Tulsa, 600 S. College, Tulsa, OK 74104). This forecast gives the anticipated future track of released Mountain Cedar pollen, weather conditions over the region and along the forecast pathway, and an estimated time of arrival for various metropolitan areas.


Questions: Aerobiology Lab e-mail:


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