Issue Date: Monday, September 26th, 2022
Issue Time: 9:10AM MDT
— Flooding is NOT expected today
Drier air continues to remain over the state with a slight boost in mid-level moisture, which is shown by the darker shade in the water vapor imagery below. This moisture has helped to increase PW at Grand Junction slightly to 0.44 inches. Platteville’s PW has dropped to 0.38 inches, indicating the little moisture that arrived with the cold front yesterday morning has mixed out. With drier north and northwesterly flow, little surface moisture and subsidence continuing today, most of the state should remain rain-free with seasonable or marginally above seasonable temperatures forecast. There is a little better moisture and mid-level energy circulating around the high over the Southwest corner. As the High builds eastward today, this and upslope circulation may allow for some isolated storms to develop over the San Juan Mountains. Due to the dry surface layer, only light to briefly moderate rainfall rates are forecast. Therefore, flooding issues are NOT expected.
Today’s Flood Threat Map
For more information on today’s flood threat, see the map below. If there is a threat, hover over the threat areas for more details, and click on burn areas to learn more about them. For Zone-Specific forecasts, scroll below the threat map.
Zone-Specific Forecasts:
Southeast Mountains, San Juan Mountains & Central Mountains:
Isolated, weak storms may be possible over the San Juan Mountains and to a lesser extent over the Southeast and Central Mountains later today. Very isolated max 30-minute rain rates up to 0.5 inches may be possible, but most storms should produce totals under 0.2 inches. Some brief breezy conditions may also be possible from outflow winds under the stronger storm cores. Flooding is NOT expected.
Primetime: 2:30PM to 8:30PM
Northern Mountains, Front Range, Northwest Slope, Grand Valley, Southwest Slope, Urban Corridor, Raton Ridge, San Luis Valley, Southeast Plains, Northeast Plains & Palmer Ridge:
Another dry day is ahead with some afternoon fair-weather cumulus possible over the southern portions of the high terrain zones. Flooding is NOT expected. High temperatures should reach into the 70s °F for the mountain valleys and 80s °F for lower elevations. Breezy conditions are expected this afternoon for portions of the eastern plains, which may somewhat elevate the fire danger.
