Pollen Forecast, 25 January 2001

University of Tulsa
Mountain Cedar Pollen Forecast


Metropolitan Area

Exposure Risk

Oklahoma City




St. Louis


Date Issued: 25 January 2001

Mountain Cedar location(s): Arbuckle Mountains, OK

Regional weather: Thursday, January 25 - TX/OK/AR: Cloudy south and west; mostly sunny north and east. High pressure centered over MO shifting east as a cold front approaches from the southern Rockies. Some precipitation (already moving into the Panhandles this afternoon) will affect mostly the northern sections tonight and Friday. Late night clouds/fog/drizzle southern sections tonight. Cold front moving through the region on Friday will get hung up in southern TX, setting the stage for a wet weekend. Highs today mostly 40's and 50's, lows tonight ranging from 20's northwest to 50's south. Highs Friday ranging from the 40's to 60's.

Trajectory weather: Mostly sunny, high in the low 50's today. Becoming mostly cloudy with rain likely tonight, changing to sleet and snow by midnight. Low in the 20's. Light snow likely on Friday, high in the low 30's.

Trajectory confidence: High

OUTLOOK: *** Moderate Threat *** Conditions are mixed and mostly favorable for pollen release today. Temperatures will reach the low 50's near the source this afternoon, partially favorable for release. Humidities are favorable with values in the 30% and 40% range. Winds are light to moderate. Moderate Risk of exposure for residents of central OK... from Lake Texoma northward beyond Enid... including the metro area of Oklahoma City. Low Risk of exposure for residents of southern and central KS, as rain should wash out any airborne pollen by mid-evening and overnight. TK

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

Prepared by: Thomas Keever (Department of Marine, Earth and Atmospheric Sciences, NCSU), Estelle Levetin (Faculty of Biological Science, The University of Tulsa, 600 S. College, Tulsa, OK 74104), and C.E. Main (Department of Plant Pathology, North Carolina State University, Raleigh, NC 27695-7618). 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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