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Areal Flood Advisory 0091
Issued by the Denver / Boulder Forecast Office

Action Issued Starts Expiration
New 2026-08-13 21:21:04 2026-08-13 21:20:00 2026-08-14 00:15:00
Expired 2026-08-14 00:12:41 2026-08-14 00:15:00


Action: New
Issued At: 2026-08-13 21:21:04

640 
WGUS85 KBOU 140220
FLSBOU

Flood Advisory
National Weather Service Denver CO
820 PM MDT Thu Aug 13 2026

COC123-140515-
/O.NEW.KBOU.FA.Y.0091.260814T0220Z-260814T0515Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Weld CO-
820 PM MDT Thu Aug 13 2026

...FLOOD ADVISORY IN EFFECT UNTIL 1115 PM MDT THIS EVENING...

* WHAT...Urban area and small stream flooding caused by excessive
  rainfall is expected.

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

* WHEN...Until 1115 PM MDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Rises in small streams and normally dry creeks.

* ADDITIONAL DETAILS...

    - At 820 PM MDT, Doppler radar and automated rain gauges
    indicated heavy rain due to thunderstorms. This may cause urban
    and small stream flooding. Between 0.5 and 1.5 inches of rain
    have fallen.

    - This includes the following streams and drainages...
    Cache La Poudre River, Sand Creek, Lone Tree Creek, South Platte
    River, Box Elder Creek, Crow Creek and Willow Creek. Additional
    rainfall amounts up to 1 inch are expected over the area. This
    additional rain will result in minor flooding.

    - Some locations that will experience flooding include...
    Eastern Greeley, Evans, LaSalle, Kersey, Lucerne, Gill, Garden
    City and Lower Latham Reservoir.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, highways and underpasses. Additionally, country
roads, farmlands along the banks of creeks, and other low lying areas
are subject to flooding.

&&

LAT...LON 4051 10469 4049 10450 4033 10454 4030 10473
      4041 10475


$$

09


Action: Expired
Issued At: 2026-08-14 00:12:41

919 
WGUS85 KBOU 140512
FLSBOU

Flood Advisory
National Weather Service Denver CO
1112 PM MDT Thu Aug 13 2026

COC123-140522-
/O.EXP.KBOU.FA.Y.0091.000000T0000Z-260814T0515Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Weld CO-
1112 PM MDT Thu Aug 13 2026

...FLOOD ADVISORY WILL EXPIRE AT 1115 PM MDT THIS EVENING...

The Flood Advisory will expire at 1115 PM MDT this evening for a
portion of northeast Colorado, including the following area, Weld.

Flood waters have receded. Urban area and small stream flooding is no
longer expected to pose a threat. Please continue to heed any
remaining closures.

&&

LAT...LON 4051 10469 4049 10450 4033 10454 4030 10473
      4041 10475


$$

MAI



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