The
Mountain
Cedar Pollen Forecast
Metropolitan Area |
Exposure Risk |
|
Low |
Tulsa |
Low |
|
Low |
Date Issued:
Mountain Cedar Location(s):
Regional Weather: Friday, January 13 TX/OK/AR: High pressure will build over central Texas today as the weather system that affected
the area over the weekend moves to the east.
Across the region cloudy conditions with high humidity will occur this
morning breaking into sunny but cool conditions this afternoon.
This is especially true in western Texas compared to eastern areas. Temperatures
will be in the low to mid 50s in areas that maintain the cloudiness whereas to the west the upper 50s can be expected.
Humidity
will remain high as areas begin to dry out from the showers over the weekend.
Region wide winds will be from the southwest and light. Low temperatures
overnight will be in the upper 30s to low 40s with warmer sunny conditions expected region wide on Tuesday. High temperatures
on Tuesday will return to the mid to low 60s region wide.
In Oklahoma, partly cloudy skies and temperatures in the low 50s will
occur today, with heightened relative humidity and light winds from the southwest.
Overnight low temperatures will be in the mid 30s with light winds. On Tuesday,
conditions will improve to the south with sunny skies and warmer conditions.
Highs on Tuesday will be in the upper 50s and dryer than today.
Trajectory weather: The air mass trajectories from the Arbuckle Mountains move to the northeast over the Tulsa region then into Missouri and to the southeast towards the Gulf of Mexico. The trajectories show good characteristics for entrainment and travel of pollen downwind. However temperatures at the source site will be cool today, low 50s, with high relative humidity and partly cloudy skies breaking into mostly sunny conditions. Winds will be light from the southwest tonight switching to the northeast tomorrow. Sunny skies today will become mostly clear overnight with sunny conditions on Tuesday. Humidity levels will be decreasing overnight as the region dries out and sunny conditions move in. High temperatures on Tuesday are expected to be in the mid to upper 50s.
OUTLOOK: *** Low Threat Today *** Unfavorable to Mixed Conditions for Pollen release. Cloudy skies with increased humidity, cool temperatures and light winds result in unfavorable to mixed conditions for pollen release within the Arbuckle Mountain population. The atmospheric conditions are good for downwind travel today but the cool conditions and high humidity at the source site should restrain pollen release therefore there is only a low threat of entrainment and downwind travel. If pollen is released eastern Oklahoma and the Tulsa region may see some deposition. Other areas may be less affected by winds sweeping northward from Texas (see the Texas forecast). However, only a low threat exists for entrainment and travel from more southerly source areas.
Trajectory Start (s) (shown by black star on map): Sulfur, OK.
Prepared by: Peter
K. Van de Water (Department of Geosciences,
Questions: Aerobiology Lab e-mail: pollen@utulsa.edu
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