The University of Tulsa
Mountain Cedar Pollen Forecast
Metropolitan Area |
Exposure Risk |
Dallas/Fort Worth |
Moderate |
Austin |
High |
San Antonio |
High |
Date Issued: 20 January 2010
Mountain Cedar Location(s): Edwards Plateau, Texas
Regional Weather: Wednesday, January 20 – TX/OK:
Across the region the weather will remain seasonably warm with temperatures in the 70s throughout the tree populations
in Oklahoma and Texas. Today skies will be partly cloudy to cloudy region wide. To the north winds will be light
and variable, but across Texas the areas surrounding the Edwards Plateau will be moderately strong and from the
south. On the Edwards Plateau winds will be from the southwest at moderate strength this morning building to very
gusty conditions this afternoon. Temperatures across the region will be in the mid 70s in the areas surrounding
the Plateau where they will be in the lower 70s. Tonight there is an increasing chance of rain from Dallas northward.
Winds across Oklahoma will be light and variable. Across Texas winds will be from the west at moderate levels.
Low temperatures will be in the 30s and 40s in Oklahoma and northern Texas. In the areas surrounding the Plateau
temperatures will be in the lower 50s and on the Plateau in the mid 40s. Tomorrow will bring partly cloudy conditions
across Oklahoma while sunnier conditions will occur across Texas. Region wide temperatures will return to conditions
similar to today. Winds will be from the northwest to west at moderate levels. Tomorrow night partly cloudy conditions
return with lows in the 30s to the north in Oklahoma and in the lower to mid 40s across Texas. Winds will be from
the north in the areas surrounding the Plateau and from the south and southwest over the Plateau.
Trajectory weather: Conditions today will remain seasonably warm with cloudy to partly cloudy conditions.
In northern Texas there is a 20% chance of precipitation while fog and drizzle are expected in Austin and San
Antonio. Across the Plateau mostly cloudy skies will occur to the east and partly cloudy to the west. Temperatures
will be in the 70s region wide. Moderate winds strengths from the south will occur in areas surrounding the Edwards
Plateau, whereas on the Plateau winds will begin from the south switching to a southwesterly direction in the afternoon
with very gusty conditions. Tonight temperatures will drop to the middle 40s but remain 10 degrees warmer, low
50s, in the surrounding communities. Winds will remain moderate from the west. Tomorrow will see mostly sunny
skies with temperatures returning to the lower to mid 70s. Winds will be from the west and southwest across the
Plateau and from the northwest in the surrounding communities. Tomorrow night will see partly cloudy skies and
temperatures in the 40s.
OUTLOOK: *** High Threat today; High threat tomorrow ***Good conditions for pollen
release today and Good conditions tomorrow;Good conditions for entrainment and transport today,Good conditions
tomorrow. Temperatures today will be in the 70s with humid conditions around the Edwards Plateau resulting
in fog and some drizzle early. The skies will clear in the afternoon and temperatures will reach the 70s. Winds
today, will be from the south switching over the Plateau to a southwesterly direction and becoming strong and gusty.
Because of these warm conditions and moderate to gusty winds, as well as the pollen cones being ripe and disseminating
their pollen in the past few days a high threat is forecast for today and tomorrow. The atmosphere is stable early
today, but becomes very buoyant this afternoon and tonight especially across the Plateau. The increased wind speeds
means that the conditions for entrainment are good as well as travel, primarily to the east into southern Arkansas
and Louisiana.
Trajectory Start (s) (shown by *
on map): Austin, TX; Junction, TX; Sonora, TX.
AUSTIN
JUNCTION
SONORA
EDWARDS PLATEAU COMPOSITE
Prepared by: Estelle
Levetin (Faculty of Biological
Science, The
University of Tulsa, 800 S. Tucker Dr., Tulsa, OK 74104) and ) 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.
Questions: Aerobiology Lab e-mail: pollen@utulsa.edu
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