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<\/p>\nIssue Date: Friday, June 19th, 2020
\nIssue Time: 10:25AM MDT<\/p>\n
After the passage of a cold front, temperatures dropped off quite a bit over the state. Below is from the Weather Prediction Center (WPC) and shows the 24-hour change from 4PM on Wednesday to 4PM on Thursday (yesterday). The effects of the front were much stronger over eastern Colorado, and over the Front Range, a couple of the stations showed a 30F swing! The interesting part of the map is over the northwest corner where temperatures actually increased. This was likely to the front already passing through prior to the rest of the state on Wednesday and the timeframe used to create this image.<\/p>\n
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Moisture also returned behind the front, so storms returned to the mountains. Over western Colorado, a lot of the moisture was scoured out, so totals over the Central and Northern Mountains were under 0.10 inches. The heaviest rainfall was over the Front Range, which started early in the morning. Rainfall was gradual enough that flooding issues were avoided. Up to 1.5 inches of rain were estimated by radar in Jefferson County, and an ALERT gage near Coal Creek recorded 1.26 inches. The Jackwhacker Gulch (best name ever) SNOTEL gage recorded 0.80 inches near Montezuma, CO.<\/p>\n
Additional rainfall fell over the Southeast Plains in the evening and overnight. A severe thunderstorm<\/span> near Hoehne, CO produced 1-inch hail around 10PM and a gust of 67 mph. Totals were generally in the 0.50 to 0.75 inch range over the area. The Perry Stokes airport ASOS showed about 2 inches of rainfall in a 1-hour period, which means there was a lot of moisture in the area for limited instability (after the sunset). Heavy rainfall also developed overnight along the Raton Ridge, and 3 inches of rain was reported near Trinidad along with street flooding around 1:30AM. Other places in the storms’ paths received around 2.50 inches for the 24-hour period. So my best guess for overnight 1-hour rainfall rates is ~1.75 inches. Wowza!<\/p>\n For precipitation estimates in your neighborhood over the last 24-hours, scroll down to the State Precipitation Map below.<\/p>\nClick Here For Map Overview<\/h4>
\nThe map below shows radar-estimated, rainfall gage-adjusted Quantitative Precipitation Estimates (QPE<\/span>) 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<\/span> may have occurred). The 24-hour, 48-hour and 72-hour total precipitation contain bias corrections that are not disaggregated into the hourly estimates, so there will likely be some differences. 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.
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