University of Tulsa
Mountain Cedar Pollen Forecast

 

Metropolitan Area

Exposure Risk

Oklahoma City

 Low

Tulsa

 Low

St. Louis

 Low

Date Issued: 09 December 2002

Mountain Cedar location(s): Arbuckle Mountains, OK

Regional weather: Monday, December 9 TX/OK/AR: Cloudy and rainy weather will greet most of Texas and Oklahoma today.  A weather system is currently centered over the state and will bring wet weather to the region today then move towards the east to northeast over night.  Heavy rainfall is expected over regions of Texas and into Oklahoma throughout the day.  Winds will be light in the north and moderate in the south. Temperatures will remain in the upper 40s south and low 40s to upper 30s to the north.  Lows overnight on Monday will be in the low 30s to the north and upper 30s to the south with calm winds throughout the region.  On Tuesday, cloudy conditions will prevail with heightened humidity throughout the region.  Temperatures will begin to warm reaching the mid-to upper 50s to the south and mid-40s to the north. Winds in this region will remain moderate to light out of the southwest in the western portions of the area and from the north to northwest along the eastern sections of the Edwards Plateau.  In Oklahoma winds will be from the south to southeast and light.  Partly cloudy conditions with increasing sun breaks and clearing is expected late Tuesday afternoon and into Tuesday evening.        

Trajectory weather:  The air mass trajectories from the Arbuckle Mountains move to the northwest then north over Oklahoma and into Kansas over the next 48 hour period.  Light winds will occur today as the weather system in Texas brings precipitation bands through the state.  Skies will remain mostly cloudy tonight and begin to breakup tomorrow.  Precipitation is expected throughout the state as the system in Texas moves to the northeast overnight and tomorrow. Temperatures will just get into the 40s today and will warm by 5degrees tomorrow.

OUTLOOK: ***Low threat today *** unfavorable conditions for pollen release today. Conditions in southern Oklahoma will remain wet and cold today then begin to warm tomorrow.  However, humidity will remain high and skies will only begin to clear during the later day on Tuesday.  Therefore, little pollen release is expected from this population.  In addition we are at the beginning of the season and our field informants have yet to find trees actively pollinating. In addition, the air trajectory characteristics show little lift in the atmosphere throughout their coarse, a sign of poor qualities for entrainment and travel of particles. .

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

Prepared by: Peter K. Van de Water (Department of Geosciences, Oregon State University), and 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: pollen@utulsa.edu

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