University
of Tulsa
Mountain Cedar Pollen Forecast
Date Issued: 11 December 2002
Mountain Cedar location(s): Ozark Mountains, AR/MO
Regional weather: Wednesday, December 11 TX/OK/AR: Conditions across the region will continue
to improve as high pressure is stationed over eastern Texas. Temperatures will warm, but humidity will continue to be relatively
high. The skies will continue to clear with partly cloudy
conditions forecast across the region. On Thursday a weather
system will move through Oklahoma and northern Texas
bringing the chance of showers to the region. Winds will be
light to moderate with greater strength to the west of the Edwards Plateau
and out of the south. Overnight and into tomorrow their strength
will remain but shift coming from the west on the western side of the plateau. To the north, in Oklahoma
and the Ozark Mountains, winds will be from the south switching to the southeast overnight
and into Thursday. High temperatures across the Edwards Plateau
and Hill Country will reach the upper 50s today and tomorrow. Lows
overnight on Wednesday will be in the mid 40’s. To the north temperatures will be 5 degrees cooler
all around with highs on today and Thursday in the low50’s. Low temperatures will be near 40 on Wednesday
night. Throughout the entire region skies will be partly cloudy to mostly sunny with increasing clouds overnight
and an increasing chance of showers on Thursday.
Trajectory weather: The air mass trajectories from the Ozark Mountains move
to the north on light winds with the upper elevation winds moving over the St. Louis
area. Cold conditions continue in the Ozark Mountain
region with high temperatures only in the mid to upper 40’s and lows near freezing. Slightly warmer conditions
will prevail on Thursday. Light to moderate winds will be out of the south to southwest with increasing clouds
and a chance of showers on Thursday.
OUTLOOK: ***Low threat today *** unfavorable conditions for pollen release today. Conditions
in the Ozark Mountains are unfavorable for pollen release today with low temperatures and
partly cloudy skies. Conditions will deteriorate as the chance of showers increases on Thursday. For these
reasons unfavorable conditions for pollen release are expected with a low threat of local or downwind dispersal.
Trajectory Start(s) (shown by black star on map): Oak Grove,
AR
Prepared by: Peter K.Van de Water (Department of Geosciences,
Oregon State University),
and Estelle Levetin (Faculty of Biological Science, The University of Tulsa,
600 S. College, Tulsa, OK 74104).
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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