SPM 07-19-2022: Record-Breaking Heat, Widely Scattered Convection

Issue Date: Tuesday, July 19th, 2022
Issue Time: 10:45 AM MDT

Summary:

High pressure shifted southward on Monday as deep westerly flow overspread most of Colorado. The record-breaking heat continued, with Akron, Limon, and Denver setting new record high temperatures. Orographic lift and a weak wave aloft led to isolated to widely scattered showers and storms developing over the interior mountains and valleys by the afternoon, although convection struggled to move off the high terrain and into the Plains. Moisture was mainly confined to the mid-levels with inverted-V soundings present, limiting the threats with any storms to gusty outflow winds and brief heavy rainfall. A 70-mph gust was reported near Peterson Air Force Base, while outflow winds gusted over 50 mph at Pueblo Airport. 1.25” hail was reported near Trinidad.

Rainfall amounts over the high terrain and foothills were generally 0.25-0.50”, but up to 0.81” was measured just west of Colorado Springs. The heaviest rainfall fell across the Southeast Plains, where QPE data suggests localized amounts exceeding 1.50” occurred along the U.S. Highway 50 corridor. Gauge observations in this vicinity are sparse, but CoCoRaHS observers reported 1.03” and 0.65” just north of La Junta and Lamar, respectively.

Additionally, a heat burst occurred late in the evening over Colorado Springs:

No flooding was reported yesterday. For precipitation estimates in our area, check out the map below.

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.