The University of Tulsa

Mountain Cedar Pollen Forecast

 

Date Issued: 8 January 2009

Mountain Cedar Location(s): Arbuckle Mountains, OK

Regional Weather: Thursday, Jan 8. TX/OK: Mild to warm conditions continue throughout the region today with clear skies and light variable winds. Temperatures will range from the upper 50s in northern Oklahoma to the upper 70s and low 80s in southern Texas. Overnight temperatures will be mild in the 40s and 50s. Tomorrow will start warm throughout the region with temperatures in the 60s and 70s. There will be moderate to strong southwest winds ahead of a strong cold front that will begin to enter the region on Friday afternoon. Winds will shift to the northwest as the frontal system enters and temperatures will begin dropping. Friday night will see temperatures in the 20s in Oklahoma and 30s and low 40s in Texas. Saturday will be 20 degrees colder than current conditions.

Trajectory weather: The air mass trajectories move from the Arbuckle Mountains to the north and then northeast over central Oklahoma and eastern Kansas on light to moderate southerly winds. The trajectories show fair characteristics for entrainment and travel of pollen; however, winds are light. Sunny skies will prevail across the region but with warm temperatures at the source site today. Overnight temperatures will be in the 40s. On Friday conditions will remain mild with moderate to strong winds.

OUTLOOK: *** High Threat today *** favorable conditions for pollen release and moderate for transport. Sunny, dry conditions and warm temperatures today are ideal for pollen release. Winds are light throughout the region so much of the pollen may stay close to the source area. The trees are nearing the peak of the pollen release season therefore significant pollen release should be expected throughout the region.

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

Prepared by: Estelle Levetin (Faculty of Biological Science, The University of Tulsa, 800 S. Tucker Dr., Tulsa, OK 74104) and Peter K Van de Water (Department of Earth and Environmental Science, California State University Fresno, 2576 East San Ramon Avenue, M/S ST24, Fresno CA 93740-8039). 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: pollen@utulsa.edu

 

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