Alert archive / Colorado / Areal Flood Advisories in 2021
Areal Flood Advisory 1, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this areal flood advisory at Apr 6, 2021, 1:57 PM MDT for Larimer County, Colorado. It was in force for 93 min.
The area
The counties it named.
The facts
- Issued
- Apr 6, 2021, 1:57 PM MDT (19:57 UTC)
- Expired
- Apr 6, 2021, 3:30 PM MDT
- In force
- 93 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
County Larimer County, CO
The radar
The Cheyenne radar (KCYS), 77 km from the middle of the area, began a volume at 20:01 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Denver/Boulder, CO wrote its last area forecast discussion before this areal flood advisory went out at Apr 6, 9:38 AM MDT, 4 hours 19 minutes earlier.
Area forecast discussion, Apr 6, 9:38 AM MDT, 4 hours 19 minutes before
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</html>Hazardous weather outlook, Apr 6, 10:02 AM MDT, 3 hours 55 minutes before
Hazardous Weather Outlook National Weather Service Denver/Boulder CO 1002 AM MDT Tue Apr 6 2021 COZ030>051-071615- Jackson County Below 9000 Feet- West Jackson and West Grand Counties Above 9000 Feet- Grand and Summit Counties Below 9000 Feet- South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Central and Southeast Park County- Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Northeast Weld County-Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Logan County-Washington County-Sedgwick County-Phillips County- 1002 AM MDT Tue Apr 6 2021 This hazardous weather outlook is for northeast and north central Colorado. .DAY ONE...Today and Tonight Scattered showers and isolated will spread across the area this afternoon and evening. A couple showers or an isolated thunderstorm may produce up to a quarter inch of rain on some of the lower slopes of the Cameron Peak fire, but no flooding is anticipated. The snow level will initially be around 8000 feet early this afternoon, and then drop to around 5000 feet overnight. Snow accumulations of 1 to 3 inches can be expected in most mountain areas, with a dusting possible on the grass in lower elevations. Most of the precipitation will shift east of the I-25 Corridor by early to mid evening, while showers continue across the mountains overnight. Temperatures should get cold enough to allow for some light slush or snow accumulation on roads over the higher mountains tonight. Strong and gusty winds will also develop across the plains through the afternoon and continue tonight. Peak gusts may reach 50 mph or greater around Limon and points south. Travelers, including those on I-70 in the Limon area, should be prepared for possible blowing dust and locally reduced visibility. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Expect strong and gusty northwest winds up to 55 mph in the wake of a storm system intensifying across Kansas on Wednesday morning. The strongest winds will be across the far northeast plains and across Washington, Elbert and Lincoln counties. There will be lingering snow showers across the mountains and a few rain and snow showers Wednesday morning across the far northeast plains. On Thursday, elevated fire danger is possible during the afternoon hours with lowering humidities and gusty northwest winds. Another weak system will bring cooler temperatures yet continued gusty winds on Friday. Saturday will be dry and warmer then another system will usher in cooler temperatures and gusty winds for Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. However, any reports of rain accumulation in or near the Cameron Peak Fire or blowing dust on the eastern plains would be appreciated.
Nearby
Areal Flood Advisories in Colorado, 2021Every areal flood advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.