Isolated strong-to-severe thunderstorms are expected today, especially to the north and west of Tucson. The attached loop is from the Storm Predictions Center and depicts the HREF (Hi-resolution ensemble forecast) probability of outflow winds in excess of 30 knots. The higher probabilities indicate the most likely areas for strong outflows. What is not shown, is the 10-30 percent probability of winds in excess of 50 knots in the bullseye of the image. Strong outflows like these will be capable o

5.2K views · 923 reactions | ARIZONA — An intense haboob (dust storm caused by thunderstorm outflow) whipped through Casa Grande, #Arizona this afternoon. It is quite intimidating when you see these coming at you! Filmed by Trey Greenwood @convectivechronicles | Texas Storm Chasers | Facebook