University of Tulsa
Mountain Cedar Pollen Forecast

Mountain Cedar location(s): Edwards Plateau, Texas

Regional weather: Monday, December 11 - TX/OK/AR: A textbook Blue Norther is pushing through the Lone Star state today. A strong cold front now situated south of the Red River Valley and east of the Ozarks will continue to move vigorously through the south-central United States. Temperatures in the 50's and 60's will plummet during the afternoon; north of the front readings will hold or drop from the 20's. Partly to mostly cloudy region-wide today. Some light precipitation may occur in eastern sections, but the bulk of the winter weather will arrive tonight and Tuesday as an upper level disturbance moves into the region from the west. Highs today ranging from the 10's in parts of OK to near 80 in south TX. On Tuesday.... 10's and 20's north, 20's and 30's south with a few locales in the 40's.

Trajectory weather: Mostly cloudy, chance of isolated showers eastern Plateau. Highs early in the 60's and 70's, dropping to the 30's and 40's late in the day. Cloudy with a chance of rain tonight, changing to freezing rain or sleet late near the Big Bend. Lows in the 20's and 30's. Sleet or snow likely all trajectories on Tuesday. Temperatures holding in the 20's.

Trajectory confidence: High.

OUTLOOK: *** Low Threat *** We are early in the release season with few cones ready to release. Low Risk of any release today. Temperatures are in the tolerance zones in the late morning but humidities are quite high and show no sign of dropping. Conditions will become less favorable with time as temperatures drop. Winds will be light for much of the afternoon. TK

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

Austin, TX

Junction, TX

San Angelo, TX

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.