SPM 09-03-2022: Weak Frontal Boundary Brings Storms to Eastern Colorado

September 3, 2022 by ·

Issue Date: Saturday, September 3rd, 2022
Issue Time: 11:10 AM MDT

Summary:

Friday morning started calmly across Colorado, with diurnal cumulus buildup along the high terrain of the Front Range, Central, and Southeast Mountains eventually beginning in the mid-afternoon. Limited moisture prevented all but isolated showers, and instead there was mainly gusty winds and lightning. Along the Palmer Ridge, convergence allowed for afternoon shower and thunderstorm development for the Eastern Plains along and south of the I-70 corridor. By evening, a weak cold-frontal boundary pushed in from the northeast, bringing thunderstorms to the Front Range, Urban Corridor, and Palmer Ridge, and late evening and overnight showers and thunderstorms for the Plains. The long-duration nature of the rainfall thankfully limited the flood threat, even with some more intense localized precipitation at times. Storms lasted well into the overnight hours, with lingering showers and thunderstorms associated with the boundary still occurring this morning for the Southeast Mountains and Raton Ridge.

A lone severe thunderstorm warning was issued for northeastern Denver County and southwestern Adams County, including DIA. The airport officially saw 0.50 inches from the severe thunderstorm in just about an hour after 9:00 pm. Between 0.28-1.25 inches were reported across the western portion of the Denver Metro Area. The Fort Collins area saw up to 0.70 inches of rain yesterday; and between 0.10-0.25 was reported across Colorado Springs, though areas just east in El Paso County saw higher totals, including up to 0.91 in Peyton and 0.90 in Fountain.

While a 0.31 inch total in Pueblo isn’t particularly impressive compared to some of the rainfall seen yesterday on the Eastern Plains, it still amounts to nearly half of the normal precipitation in September! See the tweet below from Pueblo WFO for a bit more information.

Western Colorado remained hot and dry yesterday. Grand Junction broke their record high yesterday, reaching 99 degrees. The previous record of 98 degrees was set in 1995 and tied in 2019.

No flooding was reported yesterday. For precipitation estimates in our area, check out the map below. Remember, if you observe flooding in your area, you can use the “Report a Flood” page to make a flood report when you can safely do so.

Click Here For Map Overview

The map below shows radar-estimated, rainfall gage-adjusted Quantitative Precipitation Estimates (QPE) across Colorado. The map is updated daily during the operational season (May 1 – Sep 30) by 11AM. The following six layers are currently available: 24-hour, 48-hour and 72-hour total precipitation, as well as maximum 1-hour, 2-hour and 6-hour precipitation over the past 24 hour period (to estimate where flash flooding may have occurred). The accumulation ending time is 7AM of the date shown in the bottom right corner. Also shown optionally are vulnerable fire burn areas (post 2012), which are updated throughout the season to include new, vulnerable burn areas. The home button in the top left corner resets the map to the original zoom.

Filed Under: State Precipitation Map ·

SPM 09-02-2022: Dry Weather Returns

September 2, 2022 by ·

Issue Date: Friday, September 2nd, 2022
Issue Time: 10:25 AM MDT

Summary:

Thursday saw a return to dry conditions across the state, thanks to an upper-level high over the Four Corners region. Only a handful of stations reported any measurable precipitation, with amounts of T-0.05” at most. The rainfall shown on the QPE map below in the vicinity of Lincoln/Kit Carson/Cheyenne Counties was just the radar picking up wind farms.

Check out this beautiful sunrise from Red Rocks this morning. The virga visible in the distance is indicative of the dry air in place that helped most locations remain precipitation-free yesterday.

No flooding was reported yesterday. For precipitation estimates in our area, check out the map below. Remember, if you observe flooding in your area, you can use the “Report a Flood” page to make a flood report when you can safely do so.

Click Here For Map Overview

The map below shows radar-estimated, rainfall gage-adjusted Quantitative Precipitation Estimates (QPE) across Colorado. The map is updated daily during the operational season (May 1 – Sep 30) by 11AM. The following six layers are currently available: 24-hour, 48-hour and 72-hour total precipitation, as well as maximum 1-hour, 2-hour and 6-hour precipitation over the past 24 hour period (to estimate where flash flooding may have occurred). The accumulation ending time is 7AM of the date shown in the bottom right corner. Also shown optionally are vulnerable fire burn areas (post 2012), which are updated throughout the season to include new, vulnerable burn areas. The home button in the top left corner resets the map to the original zoom.

Filed Under: State Precipitation Map ·

SPM 09-01-2022: Wet Wednesday for Eastern Half of State

September 1, 2022 by ·

Issue Date: Thursday, September 1st, 2022
Issue Time: 11:50 AM MDT

Summary:

Wednesday featured more active weather across the state thanks to a shortwave trough moving into the region from Montana. Increased moisture over the eastern foothills and plains led to numerous showers and storms mainly along and east of the I-25 corridor, although isolated convection also impacted the southern San Juans. Rainfall amounts over this eastern half of the state were generally 0.50-1.00”, although locally higher amounts approaching and exceeding 1.5” are suggested by QPE data under the most intense storms. The heaviest widespread rain appears to have fallen along and south of the Palmer Ridge over the Southeast Plains; however, in the southern San Juans, an isolated total of 1.39” was recorded by a rain gauge just west of Durango.

Notable rainfall totals over the Southeast Plains include:

• 0.82” near Two Buttes
• 0.71” near Lamar
• 0.60” near Arapahoe

Farther west in the high terrain along the southern I-25 corridor, notable rainfall totals include:

• 0.98” near Beulah
• 0.75” near Trinidad
• 0.70” near Rye

In terms of severe weather, a Severe Thunderstorm Warning was issued just east of Colorado Springs, while 1” hail was reported near Seibert and a 53-mph thunderstorm wind gust was measured near Kit Carson. Right on the Colorado-Kansas border, local law enforcement reported a landspout tornado approximately 15 miles WSW of Saint Francis, KS.

Looking at the updated U.S. Drought Monitor released this morning, conditions are in better shape compared to one and especially three months ago. We’ve seen a complete elimination of drought conditions for central portions of the state, while extreme/exceptional drought conditions have been pushed and confined to the far southwestern and northeastern tips of the state

.

No flooding was reported yesterday. For precipitation estimates in our area, check out the map below. Remember, if you observe flooding in your area you can use the “Report a Flood” page to make a flood report, when you can safely do so.

Click Here For Map Overview

The map below shows radar-estimated, rainfall gage-adjusted Quantitative Precipitation Estimates (QPE) across Colorado. The map is updated daily during the operational season (May 1 – Sep 30) by 11AM. The following six layers are currently available: 24-hour, 48-hour and 72-hour total precipitation, as well as maximum 1-hour, 2-hour and 6-hour precipitation over the past 24 hour period (to estimate where flash flooding may have occurred). The accumulation ending time is 7AM of the date shown in the bottom right corner. Also shown optionally are vulnerable fire burn areas (post 2012), which are updated throughout the season to include new, vulnerable burn areas. The home button in the top left corner resets the map to the original zoom.

Filed Under: State Precipitation Map ·

SPM 08-31-2022: Tranquil Weather Continues

August 31, 2022 by ·

Issue Date: Wednesday, August 31st, 2022
Issue Time: 11:10 AM MDT

Summary:

Tranquil weather prevailed across Colorado on Tuesday as most of the state saw plenty of sunshine and stayed precipitation-free. The exception was across the far southern San Juans and valleys, where highly isolated showers produced a report of 0.58” west of Pagosa Springs and a handful of reports of 0.20” or less elsewhere. An isolated report of 0.15” was also received further north in the vicinity of Park County. No flood products were issued by any regional WFOs.

Tomorrow, we’ll look at the updated U.S. Drought Monitor to see how conditions are faring across the region.

No flooding was reported yesterday. For precipitation estimates in our area, check out the map below. Remember, if you observe flooding in your area you can use the “Report a Flood” page to make a flood report, when you can safely do so.

Click Here For Map Overview

The map below shows radar-estimated, rainfall gage-adjusted Quantitative Precipitation Estimates (QPE) across Colorado. The map is updated daily during the operational season (May 1 – Sep 30) by 11AM. The following six layers are currently available: 24-hour, 48-hour and 72-hour total precipitation, as well as maximum 1-hour, 2-hour and 6-hour precipitation over the past 24 hour period (to estimate where flash flooding may have occurred). The accumulation ending time is 7AM of the date shown in the bottom right corner. Also shown optionally are vulnerable fire burn areas (post 2012), which are updated throughout the season to include new, vulnerable burn areas. The home button in the top left corner resets the map to the original zoom.

Filed Under: State Precipitation Map ·
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