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Sunday, Aug 16, 2026 09:47:35

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Areal Flood Advisory 0074
Issued by the Denver / Boulder Forecast Office

Action Issued Starts Expiration
New 2026-08-12 18:43:59 2026-08-12 18:43:00 2026-08-12 21:45:00
Expired 2026-08-12 21:43:35 2026-08-12 21:45:00


Action: New
Issued At: 2026-08-12 18:43:59

196 
WGUS85 KBOU 122343
FLSBOU

Flood Advisory
National Weather Service Denver CO
543 PM MDT Wed Aug 12 2026

COC123-130245-
/O.NEW.KBOU.FA.Y.0074.260812T2343Z-260813T0245Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Weld CO-
543 PM MDT Wed Aug 12 2026

...FLOOD ADVISORY IN EFFECT UNTIL 845 PM MDT THIS EVENING...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Northeastern Weld County in northeastern Colorado...

* WHEN...Until 845 PM MDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS...

    - At 543 PM MDT, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area. Between 1.5 and 2 inches of rain
    have fallen.

    - This includes the following streams and drainages...
    Horsetail Creek, Twomile Creek, George Creek, Cottonwood Creek,
    Sidney Draw, Spring Creek and North Pawnee Creek. Additional
    rainfall amounts up to 0.5 inches are expected over the area.
    This additional rain will result in minor flooding.

    - Some locations that will experience flooding include...
    Mainly rural areas of Northeastern Weld County.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, dont drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4100 10381 4100 10359 4099 10359 4100 10358
      4077 10358 4076 10361 4076 10372 4077 10372
      4078 10380 4079 10380 4080 10384 4082 10385
      4082 10387 4091 10388 4091 10387 4092 10388
      4092 10387 4097 10387 4097 10386 4099 10386


$$

63


Action: Expired
Issued At: 2026-08-12 21:43:35

162 
WGUS85 KBOU 130243
FLSBOU

Flood Advisory
National Weather Service Denver CO
843 PM MDT Wed Aug 12 2026

COC123-130253-
/O.EXP.KBOU.FA.Y.0074.000000T0000Z-260813T0245Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Weld CO-
843 PM MDT Wed Aug 12 2026

...FLOOD ADVISORY WILL EXPIRE AT 845 PM MDT THIS EVENING...

The Flood Advisory will expire at 845 PM MDT this evening for a
portion of northeast Colorado, including the following area, Weld.

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining closures.

&&

LAT...LON 4100 10381 4100 10359 4099 10359 4100 10358
      4077 10358 4076 10361 4076 10372 4077 10372
      4078 10380 4079 10380 4080 10384 4082 10385
      4082 10387 4091 10388 4091 10387 4092 10388
      4092 10387 4097 10387 4097 10386 4099 10386


$$

63



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