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Home Return to list Areal Flood Advisory 0123 Issued by the Denver / Boulder Forecast Office
Action: New Issued At: 2026-08-15 20:27:35
923
WGUS85 KBOU 160127
FLSBOU
Flood Advisory
National Weather Service Denver CO
727 PM MDT Sat Aug 15 2026
COC075-095-115-121-160330-
/O.NEW.KBOU.FA.Y.0123.260816T0127Z-260816T0330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Logan CO-Phillips CO-Sedgwick CO-Washington CO-
727 PM MDT Sat Aug 15 2026
...FLOOD ADVISORY IN EFFECT UNTIL 930 PM MDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...Extreme southeastern Logan County in northeastern
Colorado...
Phillips County in northeastern Colorado...
Southeastern Sedgwick County in northeastern Colorado...
Northeastern Washington County in northeastern Colorado...
* WHEN...Until 930 PM MDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
* ADDITIONAL DETAILS...
- At 725 PM MDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 0.5 and 1.5 inches of rain
have fallen.
- 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...
Holyoke, Haxtun, Otis, Paoli, Highland Center, Fairfield, Lone
Star, Sixteen-Mile Corner, Amherst, Burdett, Pleasant Valley,
Platner and Hyde.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Excessive runoff from heavy rainfall will cause minor flooding of
small creeks and streams, country roads, farmland along creeks, and
other low lying areas.
&&
LAT...LON 4044 10316 4044 10314 4048 10287 4046 10267
4050 10266 4072 10266 4092 10227 4090 10205
4044 10205 4044 10278 4035 10278 4035 10279
4013 10279 4013 10315 4026 10320 4043 10317
$$
20
Action: Cancelled Issued At: 2026-08-15 21:21:37
327
WGUS85 KBOU 160221
FLSBOU
Flood Advisory
National Weather Service Denver CO
821 PM MDT Sat Aug 15 2026
COC075-160231-
/O.CAN.KBOU.FA.Y.0123.000000T0000Z-260816T0330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Logan CO-
821 PM MDT Sat Aug 15 2026
...FLOOD ADVISORY IS CANCELLED...
The Flood Advisory is cancelled for far southeast Logan County has
been cancelled.
Flooding is no longer expected to pose a threat.
&&
LAT...LON 4037 10300 4044 10287 4048 10267 4072 10265
4075 10260 4075 10241 4091 10225 4082 10206
4044 10205 4044 10278 4013 10279 4013 10315
4026 10320 4032 10319
$$
COC095-115-121-160330-
/O.CON.KBOU.FA.Y.0123.000000T0000Z-260816T0330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Phillips CO-Sedgwick CO-Washington CO-
821 PM MDT Sat Aug 15 2026
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 930 PM MDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall continues.
* WHERE...Phillips County in northeastern Colorado...
Southeastern Sedgwick County in northeastern Colorado...
Northeastern Washington County in northeastern Colorado...
* WHEN...Until 930 PM MDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
* ADDITIONAL DETAILS...
- At 819 PM MDT, Doppler radar indicated heavy rain was moving
out of the Advisory area. Minor flooding is ongoing or expected
to begin shortly in the advisory area. Between 0.5 and 2 inches
of rain have fallen.
- Flooding impacts will continue, but no additional rainfall is
expected.
- Some locations that will experience flooding include...
Holyoke, Haxtun, Otis, Paoli, Highland Center, Fairfield, Lone
Star, Sixteen-Mile Corner, Amherst, Pleasant Valley, Burdett,
Platner and Hyde.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Excessive runoff from heavy rainfall will cause minor flooding of
small creeks and streams, country roads, farmland along creeks, and
other low lying areas.
&&
LAT...LON 4037 10300 4044 10287 4048 10267 4072 10265
4075 10260 4075 10241 4091 10225 4082 10206
4044 10205 4044 10278 4013 10279 4013 10315
4026 10320 4032 10319
$$
20
Action: Continued Issued At: 2026-08-15 21:21:37
327
WGUS85 KBOU 160221
FLSBOU
Flood Advisory
National Weather Service Denver CO
821 PM MDT Sat Aug 15 2026
COC075-160231-
/O.CAN.KBOU.FA.Y.0123.000000T0000Z-260816T0330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Logan CO-
821 PM MDT Sat Aug 15 2026
...FLOOD ADVISORY IS CANCELLED...
The Flood Advisory is cancelled for far southeast Logan County has
been cancelled.
Flooding is no longer expected to pose a threat.
&&
LAT...LON 4037 10300 4044 10287 4048 10267 4072 10265
4075 10260 4075 10241 4091 10225 4082 10206
4044 10205 4044 10278 4013 10279 4013 10315
4026 10320 4032 10319
$$
COC095-115-121-160330-
/O.CON.KBOU.FA.Y.0123.000000T0000Z-260816T0330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Phillips CO-Sedgwick CO-Washington CO-
821 PM MDT Sat Aug 15 2026
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 930 PM MDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall continues.
* WHERE...Phillips County in northeastern Colorado...
Southeastern Sedgwick County in northeastern Colorado...
Northeastern Washington County in northeastern Colorado...
* WHEN...Until 930 PM MDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
* ADDITIONAL DETAILS...
- At 819 PM MDT, Doppler radar indicated heavy rain was moving
out of the Advisory area. Minor flooding is ongoing or expected
to begin shortly in the advisory area. Between 0.5 and 2 inches
of rain have fallen.
- Flooding impacts will continue, but no additional rainfall is
expected.
- Some locations that will experience flooding include...
Holyoke, Haxtun, Otis, Paoli, Highland Center, Fairfield, Lone
Star, Sixteen-Mile Corner, Amherst, Pleasant Valley, Burdett,
Platner and Hyde.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Excessive runoff from heavy rainfall will cause minor flooding of
small creeks and streams, country roads, farmland along creeks, and
other low lying areas.
&&
LAT...LON 4037 10300 4044 10287 4048 10267 4072 10265
4075 10260 4075 10241 4091 10225 4082 10206
4044 10205 4044 10278 4013 10279 4013 10315
4026 10320 4032 10319
$$
20
Action: Expired Issued At: 2026-08-15 22:27:09
816
WGUS85 KBOU 160326
FLSBOU
Flood Advisory
National Weather Service Denver CO
926 PM MDT Sat Aug 15 2026
COC095-115-121-160336-
/O.EXP.KBOU.FA.Y.0123.000000T0000Z-260816T0330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Phillips CO-Sedgwick CO-Washington CO-
926 PM MDT Sat Aug 15 2026
...FLOOD ADVISORY WILL EXPIRE AT 930 PM MDT THIS EVENING...
The Flood Advisory will expire at 930 PM MDT this evening for a
portion of northeast Colorado, including the following areas,
Phillips, Sedgwick and Washington.
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining closures.
&&
LAT...LON 4037 10300 4044 10287 4048 10267 4072 10265
4075 10260 4075 10241 4091 10225 4082 10206
4044 10205 4044 10278 4013 10279 4013 10315
4026 10320 4032 10319
$$
63
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