Mountain Cedar location(s): Arbuckle Mountains, OK
Regional weather: Monday,
December 29 – TX/OK: Across the
region today skies will be cloudy to the north, but mostly sunny to sunny
conditions south of the Dallas/Ft. Worth area.
With the clear skies and full sun temperatures across the Edwards
Plateau and in the surrounding communities temperatures will rise into the mid
to low 60s. Over the Plateau winds will
be light, 5 to 10 miles per hour, from the southwest. In the surrounding communities from San
Antonio north to Austin and Waco winds will be from the south. To the north winds will be from the
southeast. Overnight temperatures will
drop into the low 30s to upper 20s across the Edwards Plateau. In the surrounding
communities and north past Dallas/Ft. Worth temperatures will be in the mid-30s,
falling into the 20s in southern to central Oklahoma. Winds will be shifting overnight from an earlier
south to southeasterly breeze to a dominating northeasterly flow. Tomorrow, to the north skies will be partly
cloudy, whereas the Edwards Plateau and the southern portion of the surrounding
communities (San Antonio) will start the day partly cloudy then become mostly
cloudy. Winds will be from the northeast
at moderate conditions and temperatures will remain in the upper 30s to upper
40s. The surrounding communities along
the I-35 corridor will remain in the low 50s.
Tomorrow night cloudy conditions will remain with a chance of frozen
drizzle and/or precipitation across the Edwards Plateau, especially towards the
southern areas. Junction, San Angelo and
Sonora have the chance of precipitation in the forecast. Low temperatures will be in the mid-20s, the
surrounding areas will be in the 30s and close to 20 degrees in southern
Trajectory weather: Air
mass trajectories over southern Oklahoma today will be influenced by cool
conditions becoming cold tonight, tomorrow, and tomorrow night. Air flow today will be from the east to
southeast, but soon after sundown the flow will come from the north to
northeast at light to moderate wind strength. Temperatures across southern Oklahoma
will be in the 40s for the high today. Tonight partly cloudy skies will remain
and lows are expected to be in the mid-20s.
Tomorrow conditions will remain cold with the high expected to only
reach the low 40s. Cold conditions will
not be conducive for pollination and thus we do not expect there to be pollen
in the atmosphere. With the dominant
northerly flow any pollen entrained to the south across the Edwards Plateau,
will move further southward. However, as
the Matrix calculation indicates, the overall flow towards Wednesday will
reestablish a southerly flow across the area once again.
OUTLOOK: *** Low Threat today and Low Threat
Tomorrow *** poor conditions for pollen release today and tomorrow with
temperatures in the 40s both days. Starting
tonight, winds will be from the north at moderate levels. Tomorrow, the cold conditions will remain for
another day. In southern Oklahoma high
temperatures today and tomorrow will struggle into the 40s tomorrow. After today, winds will begin to shift, coming
from the north, with colder conditions expected tomorrow. Trajectory Start (s) (shown by black star on map): Davis, OK.
Prepared by: Estelle Levetin(Faculty of Biological Science, The University of Tulsa, 800 S. Tucker Dr., Tulsa, OK 74104) and Peter K Van de Water (Department of Earth and Environmental Science, California State University Fresno, 2576 East San Ramon Avenue, M/S ST24, Fresno CA 93740-8039). 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.