Issue Date: Monday, June 10th, 2019
Issue Time: 9:40AM MDT

Summary:

Cool temperatures and a stable air mass yesterday was a nice break from the hot temperatures we’ve been having the last week. Early morning cloud cover over eastern Colorado decreased throughout the day with mostly sunny skies across the state by the late afternoon. 24-hour maximum temperatures can be seen from MesoWest below, which are quite below normal. The overnight lows reached freezing over the Northwest Slope with Denver hitting the 42°F mark early this morning at DIA. Gusty winds were also reported over the Northeast Plains with the passing jet overhead. As for rainfall, only trace amounts were recorded over the Southeast Mountains from the early morning rain, but everywhere else remained dry.

Melting continued for western Colorado, especially southwest Colorado. No new flooding reports were available as of this morning, but the Flood Warning remains for portions of Conejos, Rio Grande and Mineral Counties. This warning addresses the high flows along the San Antonio and Conejos Rivers in southeastern Conejos County as well as for the headwaters of the Rio Grande and San Juan Rivers. Del Norte still experiencing minor flooding. Willow Creek in north central Mineral County also had flooding issues on the south side of town, so the Low threat today was extended into this area. Areal Flood Advisories were issued for the following: Central Hinsdale County above Lake San Cristobal along Williams Creek, Colorado River near the CO/UT state line, Animas River near Durango, San Juan River at Pagosa Springs, La Plata River at Hesperus, Manco River near Mancos and the Gunnison River above Grand Junction. Flow also increased over the Arkansas River west of Pueblo, but no gages reached above Action stage. For the latest warnings and advisories, see today’s FTB post as well as NWS Grand Junction and Pueblo.

AHPS gages (Click Me!) currently at Action or Minor Flooding Stages:

• Tomichi Creek at Gunnison
• Mancos River near Mancos
• La Plata River above Hesperus
• Navajo River near Chromo
• Rio Grande near Del Norte
• Rio Grande at Alamosa
• Gunnison River near Grand Junction
• Colorado River near State Line
• Arkansas River at Wellsville
• Arkansas River at Canon City
• Arkansas River at Avondale (due to dam releases)

To see estimated precipitation totals over your area yesterday, scroll down to the State Precipitation Map below.

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Issue Date: Sunday, June 9th, 2019
Issue Time: 9:25AM MDT

Summary:

Rainfall yesterday was mostly confined to the northeast corner of the state as the trough pushed through the state. A Severe Thunderstorm Watch was issued during the afternoon. The first set of storms formed over the KS/CO border in the early afternoon, but quickly exited the state to the east. Two landspout reports came in from Kit Carson and Yuma, but as of this morning, there was no damage reported. Quite a bit of rainfall accumulated over these counties as well with the back building storms. Totals just over 1.5 inches were estimated by radar. Additional storms set up over the eastern Front Range during the afternoon, which brought a showers and thunderstorms to the Urban Corridor. These storms produced 0.5 inches of rain with hail reports up to 1.5 inches over north Denver. A wind gust of 64 mph, hail up to 1.75 inches and another tornado were reported with a severe storm in Elbert County. So as anticipated when the front dropped south, severe thunderstorm activity increased over the adjacent plains. Flooding was not reported with any of these storms.

Melting over western Colorado, especially southwest Colorado, continued to increase runoff. Flooding from snowmelt and debris flows were reported near Wolf Creek Pass again overnight. This area remains under a Flood Warning. The Flood Warning for the San Antonio and Conejos Rivers in southeastern Conejos County continues as well (through Monday evening). The public reported flooding throughout the headwaters of the Rio Grande and San Juan Rivers, so a more broad Flood Warning was put in place (see today’s FTB) with Del Norte still experiencing minor flooding. Willow Creek in north central Mineral County also had flooding issues on the south side of town. Finally, an advisory was issued for west, central Rio Grande County. Areal Flood Advisories also persisted for the Gunnison River above Grand Junction, the La Plata River at Hesperus and for the Mancos River in Montezuma County. For the latest warnings and advisories, see today’s FTB post as well as NWS Grand Junction and Pueblo.

AHPS gages (click me!) currently at Action or Minor Flooding Stages:

• Mancos River near Mancos
• La Plata River above Hesperus
• San Juan River at Pagosa Springs
• Navajo River near Chromo
• Rio Grande near Del Norte
• Eagle River at Gypsum
• Gunnison River at Delta

To see estimated precipitation totals over your area on Saturday, scroll down to the State Precipitation Map below.

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Issue Date: Saturday, June 8th, 2019
Issue Time: 9:35AM MDT

Summary:

Southwest flow yesterday allowed storms that fired over the high terrains to move into the adjacent eastern plains again. For the most part, western Colorado remained dry with only trace amounts of rainfall picked up by radar estimates. These were mostly along the Continental Divide. Eastern Colorado had a bit more moisture to work with, but the highest dew points were west of 104W. Thus, as storms moved into the adjacent plains, they became more efficient rainfall producers. Over the Urban Corridor, totals up to 0.45 inches were recorded in Aurora. The storms formed a line over the Northeast Plains/Palmer Ridge where totals just under 1 inch were estimated by radar. Hail up to 1.25 inches was reported in Limon and Weld Counties with a gust of 60 mph recorded in Akron. The bulk of the thunderstorm activity ended a couple hours after sundown.

With another day of hot temperatures over western Colorado, snowmelt and runoff continued to increase. Flooding from snowmelt and debris flows were reported near Wolf Creek Pass, which recently opened (as of 8AM). Water was 6 inches deep and road crews were unable to keep the debris and mud flows from stopping as of 2AM. This area is still under a Flood Warning. The Flood Warning for the San Antonio and Conejos Rivers in southeastern Conejos County continued as well (through Monday morning). The Areal Flood Advisories also persisted for the Gunnison River above Grand Junction, the La Plata River at Hesperus and for the Mancos River in Montezuma County for minor lowland flooding. These advisories continue until further notice by the NWS. For the latest warnings and advisories, see today’s FTB post as well as NWS Grand Junction and NWS Pueblo.

To see estimated precipitation totals over your area neighborhood on Friday, scroll down to the State Precipitation Map below.

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Issue Date: Friday, June 7th, 2019
Issue Time: 9:05AM MDT

Summary:

Break in rainfall activity on Thursday as drier air filled in behind the low. With northerly flow and moisture limited to east of the Divide, weak thunderstorms and rainfall were confined to the Front Range and Southeast Mountains. A couple of SNOTEL stations recorded up to 0.3 inches over the Southeast Mountains near the Spring Creek burn area. An Areal Flood Advisory was issued, but flooding was not reported as of this morning. Over northern Jefferson County, a total of 0.5 inches was estimated by radar. Generally, rainfall accumulations were in the 0.1 to 0.3 inch range for the thunderstorms yesterday afternoon and evening. Flooding was not reported.

Temperatures hit the 90°F mark over the Grand Valley yesterday with highs in the upper 80°Fs for the eastern plains. With the mountain areas reaching at least the mid-50°Fs with the lower valleys in the upper 60°Fs and 70°Fs, snowmelt continued. A Flood Warning for the San Antonio and Conejos Rivers in southeastern Conejos County runs through Monday morning. The Areal Flood Advisories also persisted for the Gunnison River above Grand Junction, the La Plata River at Hesperus and for the Mancos River in Montezuma County for minor lowland flooding. These advisories continue until further notice by the NWS. Minor flooding was not reported at any of these locations, though rivers remain at or slightly above bankfull.

To see estimated precipitation totals over your area yesterday, scroll down to the State Precipitation Map below.

Click Here For Map Overview