SPM 09-21-2022: Widespread Rain West of Divide, Early Morning Storms for Northern Northeast Plains

Issue Date: Wednesday, September 21st, 2022
Issue Time: 11:10 AM MDT

Summary:

A late-season plume of moisture began making its way into the region on Tuesday, producing fairly widespread showers and embedded storms for the western half of the state. From the Northern Mountains southward across the western slope and into the San Juans, precipitation amounts were generally in the 0.25-0.50” range. Some notable rain gauge observations include:

• 0.55” near Dolores
• 0.42” southwest of Durango
• 0.39” east of Bayfield
• 0.31” near Placerville
• 0.30” near Buford
• 0.29” and 0.28” near Glenwood Springs

East of the Divide saw a relatively dry Tuesday for most locations. However, an area of showers and storms did impact the northern half of the Northeast Plains before dawn this morning, mainly along and north of the I-76 corridor, producing the heaviest rainfall amounts of the past 24 hours. QPE data suggests a general swath of 0.25-0.50” along with localized amounts approaching and exceeding 1.00”, particularly across Logan, Sedgwick, and Phillips Counties. Rain gauge coverage is sparse, with the highest rain gauge observation in this region being 0.40” near Crook.

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.

SPM 09-20-2022: Swath of Heavier Rain for Portions of Southeast Plains

Issue Date: Tuesday, September 20th, 2022
Issue Time: 11:00 AM MDT

Summary:

Monday featured mostly dry conditions across the state as the upper-level ridge continued to influence our weather, although three regions did observe some precipitation. The first region was the Grand Valley near Grand Junction, with very light amounts not exceeding 0.10”. The second region, which also saw very light rainfall amounts, was over and near the Palmer Ridge, with gauge observations again not exceeding 0.10”.

The last region, which experienced the heaviest precipitation, was a narrow swath from the Raton Ridge east-northeastward across the Southeast Plains and into Prowers County/western Kansas. Showers and storms that moved off the Ridge produced generally 0.25” or less, except across eastern Prowers where QPE data suggests amounts approaching and exceeding 1.00”. The highest rain gauge observation in Colorado associated with this precipitation was 0.30” from a CoCoRaHS observer near Holly; however, a few miles east of the border in Kansas saw observations of 1.16” and 0.95” near Coolidge.

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.

SPM 09-19-2022: Dry Sunday, Dense Fog This Morning for Portions of Plains

Issue Date: Monday, September 19th, 2022
Issue Time: 11:05 AM MDT

Summary:

The ridge dominating the south-central U.S. built westward on Sunday, providing subsidence and dry conditions across Colorado. Precipitation was only observed at a handful of stations scattered throughout the state, with amounts of 0.05” or less. The main weather story of the past 24 hours was dense fog for portions of the eastern Plains this morning.

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.

SPM 09-18-2022: Calm and Dry

Issue Date: Sunday, September 18th, 2022
Issue Time: 9:30 AM MDT

Summary:

Colorado stayed quite dry yesterday, with rainfall generally only observed around the Denver area and northern Colorado. 0.11”-0.19” was reported in areas north of the Urban Corridor along the Front Range and Northern Plains, but most other observations along the Urban Corridor came in at under 0.1”. The highest precipitation observed yesterday was 0.43” in Steamboat Springs via a CoCoRaHS observer. Additionally, the western slope saw a few reports of 0.01-0.02” of rainfall from Mesowest gages. Those observations were few and far between- the majority of the western slope was precipitation-free.

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.