Date Issued: 18 December 1998
Mountain Cedar location(s): Arbuckle Mountains, OK
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 with occasional rain developing today, high in the upper 50's. Mostly cloudy and colder tonight, low in the upper 20's. Cloudy with a high in the upper 30's on Saturday.
Trajectory confidence: High
OUTLOOK: *** Low Threat *** Conditions are unfavorable for pollen release today due to the high humidities and the expected rainfall. Low Risk of transport today. Risk of pollen transport should be Low again on Saturday. Temperatures are not expected to reach the favorable range near the source and it's doubtful enough drying will have taken place after today's rainfall activity. On Sunday.....with a chance of rain (or snow) and more cold temperatures, little pollen release is expected. TK
Trajectory Start(s) (shown by green dot on map): Sulfur, Oklahoma
Prepared b: 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.