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Areal Flood Watch — Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet, CO, Larimer County Below 6000 Feet/Northwest Weld County, CO, Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County, CO, North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County, CO, Elbert/Central and East Douglas Counties Above 6000 Feet, CO, Northeast Weld County, CO, Central and South Weld County, CO, Morgan County, CO, Central and East Adams and Arapahoe Counties, CO, North and Northeast Elbert County Below 6000 Feet/North Lincoln County, CO, Southeast Elbert County Below 6000 Feet/South Lincoln County, CO, Logan County, CO, Washington County, CO, Sedgwick County, CO, Phillips County, CO
Issued
3:00 p. m. CDT · sáb., ago. 15 2026
Expires
11:00 p. m. CDT · sáb., ago. 15 2026
Issuing Office
NWS KBOU

Affected Areas

Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet, CO Larimer County Below 6000 Feet/Northwest Weld County, CO Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County, CO North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County, CO Elbert/Central and East Douglas Counties Above 6000 Feet, CO Northeast Weld County, CO Central and South Weld County, CO Morgan County, CO Central and East Adams and Arapahoe Counties, CO North and Northeast Elbert County Below 6000 Feet/North Lincoln County, CO Southeast Elbert County Below 6000 Feet/South Lincoln County, CO Logan County, CO Washington County, CO Sedgwick County, CO Phillips County, CO

Official Bulletin

384
WGUS65 KBOU 150706
FFABOU

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Denver CO
106 AM MDT Sat Aug 15 2026

COZ036-038>051-152015-
/O.NEW.KBOU.FA.A.0005.260815T2000Z-260816T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-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-
Including the cities of Bennett, Highlands Ranch, Last Chance,
Raymer, Sedgwick, Holyoke, Goodrich, Brighton, Boulder, Nunn, City of
Denver, Pawnee Buttes, Greeley, Roggen, Evergreen, Sterling, Punkin
Center, Fort Collins, Stoneham, Akron, Karval, Cope, Golden, Ovid,
Deer Trail, Lakewood, Aurora, Wiggins, Fondis, Kiowa, Briggsdale,
Loveland, Otis, Matheson, Arvada, Agate, Leader, Idaho Springs,
Peetz, Hugo, Kutch, Hereford, Georgetown, Larkspur, Crook, Amherst,
Haxtun, Longmont, Littleton, Eaton, Brush, Merino, Elbert, Westcreek,
Fort Morgan, Castle Rock, Parker, Central City, Grover, Fort Lupton,
Byers, Limon, Forder, Bailey, Denver International Airport, and
Julesburg
106 AM MDT Sat Aug 15 2026

...FLOOD WATCH IN EFFECT FROM THIS AFTERNOON THROUGH THIS EVENING...

* WHAT...Flash Flooding caused by excessive rainfall is possible.

* WHERE...Portions of central and northeast Colorado, including the
  following areas; the southern Front Range Foothills, Palmer Divide
  area, I-25 corridor, and all of our eastern plains counties.

* WHEN...From this afternoon through this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
  - Additional thunderstorms and heavy rainfall this afternoon,
    combined with the heavy rainfall from the past 3 days, will bring
    a threat for flash flooding this afternoon and evening. Stronger
    storms will be capable of producing 1 to 2 inches of rain in 30
    minutes, with isolated areas receiving storm totals of 3+ inches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

$$

AP