The University of Tulsa

Mountain Cedar Pollen Forecast

 

Date Issued: 18 January 2008

Mountain Cedar Location(s): Edwards Plateau, Texas

Regional Weather: Friday, Jan 18. TX/OK: Cool temperatures continue. Lows Friday morning will be in the low 20s in Oklahoma and upper 20s to low 30s in Texas. Daytime highs will be in the 40s across the region. In Oklahoma, skies will be partly cloudy with moderate southwest winds. Later in the day winds will shift to northwest as another frontal system moves across the state. In Texas skies willbe partly to mostly cloudy with a chance of rain occurring in central and southern Texas. Winds will be light and variable shifting to north winds in most parts of the state.


Trajectory weather: The air mass trajectories from eastern Texas move to the south, whereas those from the western side of the Edwards Plateau loop around south Texas. The trajectories from the east show characteristics associated with the cold air as the air masses sink towards the ground and move primarily at ground level. Trajectories from the western part of the Plateau show moderate characteristics for transport Conditions at the sources will be cold today with chance of rain. The cold temperatures and chance of rain should discourage pollen release today.


OUTLOOK: *** Low to moderate Threat today *** In general poor conditions for pollen release across the Plateau. Since trees are in their peak release period, some pollen release may occur in sheltered areas.

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

AUSTIN

JUNCTION

SAN ANGELO

Prepared by: Estelle Levetin (Faculty of Biological Science, The University of Tulsa, 600 S. College, Tulsa, OK 74104) and ) 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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