The University of Tulsa

Mountain Cedar Pollen Forecast

Metropolitan Area

Exposure Risk

Dallas/Fort Worth



Moderate to High Threat

San Antonio

Moderate to High Threat


Date Issued: 29 December 2004

Mountain Cedar Location(s): Edwards Plateau, Texas

Regional Weather: Wednesday and Thursday, Dec 29 and 30. TX/OK: Mild temperatures continue throughout the region for the next few days. Skies will be partly to mostly cloudy and chances of rain increase later this week. Patchy fog and mist over eastern regions of the Edwards Plateau should lift this afternoon. Daytime highs both Wednesday and Thursday from the mid to upper 60s in the north to low 70s in the south. Lows tonight will be in the 50s. Southerly winds will be moderate with gusts throughout the region.

Trajectory weather: The air mass trajectories from the Edwards Plateau move to the north and northeast Wednesday and Thursday. Trajectories show mixed conditions that are less than ideal for entrainment and travel of pollen downwind. At the source, conditions for pollen release should be favorable this afternoon after patchy fog lifts.Temperatures are in the favorable range throughout the Plateau.Overnight temperatures will be in the 50s tonight with temperatures on Thursday into the mid to upper 70s across the Plateau. Possibility of patchy fog again tonight tomorrow morning. Chance of rain increase on Thursday in some areas.

OUTLOOK: *** Moderate to High Threat *** Mostly favorable conditions for pollen release. Patchy fog across the Plateau should lift this afternoon. This should allow for pollen release in the afternoon. Since the trees are nearing their peak release period significant amounts of pollen release might be expected in areas where the fogs lifts early. Conditions on Thursday are similar with patchy fog that may delay pollen release to afternnon hours.

Trajectory Start (s) (shown by * on map): Austin, TX; Junction, TX; San Angelo, TX.




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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