Date Issued: 18 December 1998
Mountain Cedar location(s): Edwards Plateau, Texas
Regional weather: Friday, December 18 - TX/OK: Low pressure disturbance moving through the region today will trigger showers and possible thunderstorms in Texas and Oklahoma. System will move off overnight as a cold front moves southward from the northern plains. Mild today with highs in the 50's and 60's. Lows tonight in the 20's and 30's north and west, 40's and 50's elsewhere. Colder in OK and part of TX on Saturday with a wide range of temperatures from north to south. 30's and 40's in OK and parts of west Texas. 50's and 60's parts of central Texas, 70's south Texas. Chance of light rain or drizzle west Texas on Saturday and a chance of snow parts of OK Saturday night. Partly to mostly cloudy most areas on Sunday. Highs in the 30's and 40's OK.....50's, 60's, and 70's TX.
Trajectory weather: Cloudy and breezy with a chance of showers and thunderstorms, highs in the 60's. Mostly cloudy tonight with a slight chance of light rain, lows in the low 30's. Mostly cloudy Saturday, high in the upper 30's to low 40's.
Trajectory confidence: High
OUTLOOK: *** Low Threat *** Conditions are unfavorable for pollen release today. Humidities are high and rain is moving through the source region. Low Risk of transport today. On Saturday......conditions will be unfavorable on the western sections of the Plateau and mostly unfavorable in the eastern sections. Much depends on how much rainfall occurs today. Temperatures will be warmer (60's) in the eastern sections, and those areas that remain dry today may have some pollen release on Saturday. Any airborne pollen will be travelling south and west, through south-central Texas and the hill country towards the Big Bend area, on Saturday. TK
Trajectory Start(s) (shown by green dot 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.