Issue Date: Wednesday, May 29th, 2019
Issue Time: 9:05AM MDT

Summary:

A cold front helped cool off high temperatures on Tuesday, so it was another day in May with below average temperatures. Further south, temperatures were a bit warmer until another blast of cold air moved in overnight. Yesterday, the upper level low moved across the state and brought widespread showers and snow (higher elevations) to northern Colorado. Downsloping winds to the south helped keep southeast Colorado rain free. Rainfall was more gradual in nature although some embedded convection and higher dew points to the east helped increase totals over the Northeast Plains. CoCoRaHS over the northeast corner of the state and over the Medicine Bow-Routt National Forest recorded around 1 inch for the 24-hour period. The only difference is the precipitation over the Northern Mountains fell as snow. The highest precipitation recorded at a SNOTEL site was 1.4 inches at Arapaho Ridge, which is located ~30 miles north of Kremmling. Over Ouray, 1.5 inches of snow fell. Half dollar sized hail was reported with a severe storm over Cheyenne County with radar indicating 0.5 inches of rain falling. Flooding was not reported on Tuesday.

To see estimated precipitation totals from Tuesday, scroll down to the State Precipitation Map below.

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Issue Date: Tuesday, May 28th, 2019
Issue Time: 9:50AM MDT

Summary:

Another wild weather day for eastern Colorado. Southwest flow in front of the low helped supply wind shear for a severe thunderstorm friendly environment over eastern Colorado. Large hail were reported with these storms as well as ample rainfall and tornadoes. There were 8 tornado reports with hail reports between 1 and 2 inches (further east in Yuma County). Two hour rainfall was measured between 2.5 and 3 inches over Logan County with 1-hr rain rates just over 1 inch. A Flash Flood warning was issued for Logan County at 6PM for areas west and north of Iliff. The highest CoCoRaHS for the day was in Julesburg where 2-2.5 inches were reported. As if all that wasn’t exciting enough, a late night hail storm moved through Denver (just after 1AM), which woke up the entire metro area. Hail size ranged from pea to quarter with this storm. Rainfall was estimated to be around 0.5 inches in the core of the storm.

To the west, more gradual rainfall was reported along with gusty winds (50-65 mph). Snow fell at the highest elevations with Silverton reporting 1.5 inches during the morning hours. Ouray reported 3.5 inches of snow for the day (not including what fell overnight). There was small quarter sized hail reported outside of Grand Junction with a storm that passed through in the late afternoon. Radar and CoCoRaHS in the area indicate between 0.1 and 0.2 inches of rain fell over this area.

To see estimated precipitation totals from Memorial Day, scroll down to the State Precipitation Map below.

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Issue Date: Monday, May 27th, 2019
Issue Time: 9:10 AM MDT

Summary:

Thanks to the combination of an influx of moisture from the east, plenty of daytime heating, and a disturbance aloft, yesterday was an active day of weather across Colorado. Over much of the High Country where moisture was limited, scattered showers and a couple weak thunderstorms was all Mother Nature could muster, producing mainly light rain and gusty winds. The Front Range was the exception to this rule, thanks to moisture from the east being transported into the terrain, so there was a bit more wetting rainfall over that region.

The main weather impacts yesterday were east of the mountains, where good moisture was transported into the state from the Great Plains. This moisture was more than enough fuel for the production of scattered showers and thunderstorms, many of which were strong/severe. The bulk of the activity occurred from Noon – 10 PM, but a few showers/storms lingered into the early morning hours over the Northeast Plains. Check out the some of the more severe storm reports submitted to the National Weather Service:

3.00 inch hail: 3 miles W of New Raymer (Weld County)
2.50 inch hail: 2 miles NNE of New Raymer (Weld County), Springfield (Baca County)
2.00 inch hail: 4 miles S of Eads (Kiowa County)
1.75 inch hail: 4 miles NNE of Sweetwater Reservoir (Kiowa County)
1.50 inch hail: 5 miles SSE of Milton Reservoir (Weld County), 3 miles NNE of Sweetwater Reservoir (Kiowa County), 2 miles WNW of Vilas (Baca County)
Tornado: 10 reports total submitted from the following counties: Prowers, Bent, Kiowa, Weld, Adams, and Lincoln

Street flooding was reported in Springfield, up to six inches deep, around 1 PM. For a look at precipitation estimates in your area, please see the State Precipitation Map below.

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Issue Date: Sunday, May 26th, 2019
Issue Time: 9:10 AM MDT

Summary:

Plenty of sunshine could be found across the state yesterday, with high temperatures reaching up to near, or a few degrees above, average for the date. There were two areas of exception, where isolated showers/storms were able to develop and rumble: 1) northern portions of the Urban Corridor and Northeast Plains, and 2) over the far Southeast Plains. The activity over northern portions of the Urban Corridor and Northeast Plains were garden-variety, producing gusty winds and periods of light rainfall.
The strongest storms of the day were over the far Southeast Plains, where good moisture was in place and convergence along the dryline acted as the trigger mechanism for severe storm development. Large hail was the main impact, along with periods of moderate/heavy rainfall and strong winds. The following large hail reports were submitted to the National Weather Service:

1.75 inch hail: 9 miles N of Campo (Baca County)
1.00 inch hail: 5 miles NNE of Campo (Baca County)

Minor street flooding was reported 1 mile NNW of Walsh, likely from a combination of brief heavy rainfall and nickel-sized hail inhibiting drainage. For a look at precipitation estimates in your area, please see the State Precipitation Map below.

Click Here For Map Overview