Alert archive / Colorado / Flash Flood Watches in 2023

Flash Flood Watch 2, NWS Denver/Boulder, CO

June 7, 20239 counties in Colorado

NWS Denver/Boulder, CO issued this flash flood watch at Jun 7, 2023, 2:35 AM MDT for 9 counties in Colorado. It took effect at Jun 7, 2023, 12:00 PM MDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jun 7, 2023, 2:35 AM MDT (08:35 UTC)
In effect from
Jun 7, 2023, 12:00 PM MDT
Expired
Jun 7, 2023, 7:11 PM MDT
In force
7 hr
Issued by
NWS Denver/Boulder, CO
Flood severity
None

Counties Boulder County, CO, Clear Creek County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Summit County, CO

The radar

The Denver radar (KFTG), 102 km from the middle of the area, began a volume at 08:35 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 flash flood watch 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 flash flood watch went out at Jun 6, 11:27 PM MDT, 3 hours 8 minutes earlier.

Area forecast discussion, Jun 6, 11:27 PM MDT, 3 hours 8 minutes before
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Hazardous weather outlook, Jun 6, 11:50 AM MDT, 14 hours 45 minutes before
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1150 AM MDT Tue Jun 6 2023

COZ030>051-071800-
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-
1150 AM MDT Tue Jun 6 2023

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Showers and thunderstorms will be widespread over the mountains
and foothills this afternoon and early evening, with scattered
coverage over the plains. Some areas will receive locally heavy
rainfall, which could lead to flooding. The best chances for
flooding will be over the alpine burned areas north of I-70, and
east of the Continental Divide including the Cameron Peak and
Calwood burned areas.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

The long term period will continue to be wet and cool. There
will be scattered showers and storms every day with the mountains
being favored for storms Wednesday through Friday and the plains
favored on the weekend. The primary concern will be flooding,
particularly flash flooding in the recent burn areas. Gusty winds,
small hail, and lightning will also be threats.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight. However,
any significant rainfall and flooding reports will be
appreciated.

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 6, 6:31 PM MDTAreal Flood AdvisoryBOUWeld84 min
Jun 6, 6:32 PM MDTAreal Flood AdvisoryBOUWeld118 min
Jun 7, 12:13 PM MDTFlash Flood WarningBOULarimer3 hr
Jun 7, 1:55 PM MDTFlash Flood WarningBOUGrand3 hr
Jun 7, 2:05 PM MDTFlash Flood WarningBOULarimer3 hr
Jun 7, 3:11 PM MDTFlash Flood WarningBOULarimer3 hr
Jun 7, 3:35 PM MDTSpecial Weather StatementBOUBroomfield25 min
Jun 7, 3:52 PM MDTSevere Thunderstorm WarningBOUGilpin, Jefferson27 min
Jun 7, 4:04 PM MDTFlash Flood WarningBOULarimer3 hr
Jun 7, 4:18 PM MDTSpecial Weather StatementBOUBoulder42 min
Jun 7, 5:30 PM MDTSpecial Weather StatementBOUBoulder30 min

Nearby

Flash Flood Watches in Colorado, 2023Every flash flood watch in 2023

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.