Date Issued: 7 December 1998
Mountain Cedar location(s): Edwards Plateau, Texas
Trajectory Start(s) (shown by green dot on map): Austin, TX; Junction, TX; San Angelo, TX
Austin, TX
Junction, TX
San Angelo, TX
Regional weathe: Monday, December 7 - TX/OK: Complex frontal system coming out of the Rockies is moving through the region. Frontal boundary now positioned from northeast to southwest along a line from the TX/AR border to the Big Bend area. Cold with drizzle or snow to the north and west behind the front; warm, possibly showery weather to the south and east. Wide temperature range....expected highs in the 30's and 40's OK and west TX, 60's and 70's to the south. Cloudy and humid most areas. Clearing tonight and Tuesday. Cold tonight with lows in the 20's north and west, 30's and 40's south and east. Warmer Tuesday.
Trajectory weather: Mostly cloudy in the morning becoming partly cloudy in the afternoon. Variably cloudy tonight with a low in the 40's. Cloudy and cool with a slight chance of rain on Tuesday, high in the 60's. Partly cloudy on Tuesday for the San Angelo trajectory, high in the 50's.
Trajectory confidence: High
OUTLOOK: *** Low Threat *** Conditions are unfavorable for pollen release. Temperatures are favorable but relative humidities are high across the plateau. In addition, it is early in the pollen season and few cones are ready to release pollen. Any airborne pollen will flow south to southeast today from most areas, though air flows in some sections of the plateau will turn to the west and then north. Low Risk of pollen transport from this region to any major metropolitan areas today. TK, EL
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). 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.