The figure above indicates the forecasted high in orange (with error bar denoting the range of ensemble forecast members), average high for this time of year in orange (dashed line), forecasted low in blue (with error bar), average low this time of year in blue (dashed line), and forecasted wind speed in purple. Note that the wind speed forecast is sustained wind (not gusts), and it is based on only one model (not an ensemble).
Another low pressure system will dip south-southeastward into Arizona this Friday – Saturday. The storm will be strong and contain much cooler air, leading to strong pressure contrasts and windy conditions. Skies will become partly cloudy and there will be a slight chance of rain showers (possibly snow showers in the higher near or above 6,000’). However, the system will not tap into enough moisture or be positioned properly to bring the Prescott area much precipitation. Precipitation amounts, if any, will be light.
High pressure and warmer temperatures should return early next week.
Met Mail is an unofficial weather discussion and forecast transmitted once or twice a week via e-mail by the Embry-Riddle Department of Meteorology (http://meteo.pr.erau.edu/). Embry-Riddle offers an undergraduate bachelor-of-science degree program in Applied Meteorology. Please spread the word to all potential qualified candidates!
ERAU Applied Meteorology degree program
Official National Weather Service forecast