FTB 09-29-2018: Big Temperature Swing for Eastern Colorado, Fire Danger Returns

Issue Date: 9/29/2018
Issue Time: 7:11 AM

NO FLOOD THREAT IS FORECAST TODAY.

Yesterday’s cold front has come and gone, and the shallow cold air left behind across eastern Colorado will be eroded quickly by warm air currently hanging out around 7000 feet (for a visual representation of just how shallow the cold air is, check out the atmospheric sounding below: 38°F at the surface, ~70°F approx.1000 feet above). This will cause a wild swing in high temperatures, with today’s highs being 25-35°F higher than yesterday’s. This warm air is also relatively dry, and as it mixes down to the lower elevations, it will bring with it elevated fire danger due to the gusty, west/southwest winds associated with it. Scattered high clouds will hang around for much of the day over the Urban Corridor and western portions of the Southeast Plains, Northeast Plains, and Palmer Ridge, but the rest of the area should be mostly sunny.

Image via: Storm Prediction Center (spc.noaa.gov)

For the High Country, the day has started mostly clear and will remain mostly sunny throughout the day, with a few passing high clouds associated with a bit of high-level moisture. High temperatures will be above average, and combined with dry fuels and low relative humidities, fire danger is the main concern with today’s weather conditions. Red Flag Warnings have been posted for much of the High Country; please check with your local National Weather Service office for more information.

Today’s Flood Threat Map

For more information on today’s flood threat, see the map below (hover over threat areas for more details). For Zone-Specific forecasts, jump below the map.

Flood Threat Legend

Zone-Specific Forecasts

Urban Corridor, Palmer Ridge, Northeast Plains, Southeast Plains, and Raton Ridge:

Warm and dry, with high temperatures 25-35°F warmer than yesterday’s highs. Breezy conditions and low relative humidities will bring elevated fire concerns to the area, with a Red Flag Warning issued for portions of the Urban Corridor and Palmer Ridge. Please check with your local National Weather Service office for more information.

Front Range, Northern Mountains, Northwest Slope, Central Mountains, Southeast Mountains, Grand Valley, San Juan Mountains, Southwest Slope, and San Luis Valley:

Warm and dry is the name of the weather game today, with gusty west/southwest winds combining with low relative humidities to elevate fire danger across the area. Red Flag Warnings have been issued for much of the High Country; please check with your local National Weather Service office for more specifics.