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Areal Flood Advisory 0076
Issued by the Denver / Boulder Forecast Office

Action Issued Starts Expiration
New 2026-08-12 19:09:29 2026-08-12 19:09:00 2026-08-12 22:15:00
Expired 2026-08-12 22:11:36 2026-08-12 22:15:00


Action: New
Issued At: 2026-08-12 19:09:29

856 
WGUS85 KBOU 130009
FLSBOU

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

COC075-130315-
/O.NEW.KBOU.FA.Y.0076.260813T0009Z-260813T0315Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Logan CO-
609 PM MDT Wed Aug 12 2026

...FLOOD ADVISORY IN EFFECT UNTIL 915 PM MDT THIS EVENING...

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

* WHERE...Northwestern Logan County in northeastern Colorado...

* WHEN...Until 915 PM MDT.

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

* ADDITIONAL DETAILS...

    - At 609 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.

    - 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...
    Westplains.


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 10357 4100 10330 4099 10330 4099 10328
      4098 10327 4095 10326 4095 10325 4089 10325
      4088 10326 4085 10326 4085 10327 4080 10327
      4080 10328 4075 10329 4075 10330 4072 10332
      4070 10335 4069 10335 4065 10345 4065 10358


$$

63


Action: Expired
Issued At: 2026-08-12 22:11:36

784 
WGUS85 KBOU 130311
FLSBOU

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

COC075-130321-
/O.EXP.KBOU.FA.Y.0076.000000T0000Z-260813T0315Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Logan CO-
911 PM MDT Wed Aug 12 2026

...FLOOD ADVISORY WILL EXPIRE AT 915 PM MDT THIS EVENING...

The Flood Advisory will expire at 915 PM MDT this evening for a
portion of northeast Colorado, including the following area, Logan.

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

&&

LAT...LON 4100 10357 4100 10330 4099 10330 4099 10328
      4098 10327 4095 10326 4095 10325 4089 10325
      4088 10326 4085 10326 4085 10327 4080 10327
      4080 10328 4075 10329 4075 10330 4072 10332
      4070 10335 4069 10335 4065 10345 4065 10358


$$

09



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