State Precipitation Map

STP 07-03-2017: Limited Rainfall and Gusty Winds

July 3, 2017 by Dana McGlone ·

Issue Date: Monday, July 3, 2017
Issue Time: 10:10 AM MDT

Summary:

Upslope flow helped trigger thunderstorm formation over the Palmer Divide and mountains again yesterday afternoon. The “Inverted-V” atmospheric profile amplified gusty outflow winds from the thunderstorms. The Fort Carson ASOS recorded a 66 mph wind gust outside Colorado Springs at 3 PM yesterday. In Brighton, a dry microburst knocked down power lines and caused a small grass fire at 3:40 PM. Over the San Juan Mountains, a 51 mph wind gust from a thunderstorm was recorded at the Telluride Regional Airport.

Strong westerly flow helped mix out moisture at the surface yesterday limiting rainfall totals. The storms that did form were over rural areas without rain gauges. Radar estimates were between 2.0-2.2 inches in the storm cores.

Flooding was not reported on Sunday. Please see the STP map below for a look at precipitation totals from the last 24 hours.

Filed Under: State Precipitation Map ·

STP 07-02-2017: Isolated Thunderstorms Rumbled

July 2, 2017 by COfloodthreat ·

Issue Date: Sunday, July 2nd, 2017
Issue Time: 10:10 AM MDT

Summary:

Most of the state remained under the control of an overpowering warm, subsident airmass, which kept skies mainly blue and free of precipitation. Southern Colorado, however, was the exception to the rule, with isolated thunderstorms kicked off by the combination of strong daytime heating and orographic effects. Most showers/storms that did develop resulted in mainly light rainfall accumulations and gusty winds, but as often happens in setups like this, El Paso, Pueblo, and Lincoln counties had thunderstorms “overachieve.” An outflow boundary from thunderstorms further to the south enhanced moisture and surface convergence in those areas, sparking a couple strong thunderstorms during the later evening hours. From those thunderstorms, a couple storm reports were submitted to the NWS office in Pueblo:

4 miles north of the Peterson AFB: 1.1 inches of rain/20 minutes
3 miles southwest of the Peterson AFB: 0.75 inch hail
7 miles southwest of Karval: 1.25 inch hail

No flooding was reported yesterday. Please see the STP map below for a look at precipitation totals from the last 24 hours.

Filed Under: State Precipitation Map ·

STP 07-01-2017: Daytime Heating Kicked Off Isolated Showers/Thunderstorms

July 1, 2017 by COfloodthreat ·

Issue Date: Saturday, July 1st, 2017
Issue Time: 10:10 AM MDT

Summary:

As is typical of Colorado during the summertime, daytime heating was enough to overcome morning stability, resulting in a few isolated showers/thunderstorms during the afternoon and evening hours. Most activity produced light-to-moderate rainfall, with attending gusty winds and lightning. Most activity ended by sunset, or shortly thereafter. According to CoCoRaHS observers, the big rainfall “winners” from yesterday are as follows:

Washington County: 0.28 inches
Yuma County: 0.28 inches
Las Animas County: 0.13 inches
Kit Carson County: 0.11 inches

No flooding occurred yesterday, nor were there any severe storm reports. Please see the STP map below for a look at precipitation totals from the last 24 hours.

Filed Under: State Precipitation Map ·

STP 06-30-2017: Isolated Thunderstorms with Large Hail

June 30, 2017 by Dana McGlone ·

Issue Date: Friday, June 30, 2017
Issue Time: 10:45AM MDT

Summary:

Upslope flow initiated isolated, high-based thunderstorms over the Palmer Divide and Southeast Plains again yesterday afternoon. Despite their high bases, the radar estimates for rainfall were over 3 inches in the storm cores. The severe thunderstorm that formed over rural Otero County had no rain reports, but CoCoRaHS stations in Elbert and Lincoln Counties reported rainfall amounts up to 1.5 inches. Limon Airport had 0.31 inches that fell and reported a wind gust of 40 mph. The main severe threat with these storms yesterday was the hail. There were 23 reports with hail size ranging from 0.75 inches to 2.75 inches in diameter. The astounding 2.75 inch diameter hail was reported by an Emergency Manager just north of Wiley, CO.

Scattered thunderstorms and showers developed over the Northeast Plains and Urban Corridor with the arrival of the upper level trough late last night. The showers have persisted this morning over the Northeast Plains and produced local rainfall amounts of about 0.5-1 inches.

Flooding was not reported on Thursday. Please see the STP map below for a look at 24-hour precipitation totals.

Filed Under: State Precipitation Map ·