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Home Return to list Areal Flood Advisory 0019 Issued by the Cheyenne Forecast Office
Action: New Issued At: 2026-09-17 20:27:56
666
WGUS85 KCYS 180127
FLSCYS
Flood Advisory
National Weather Service Cheyenne WY
727 PM MDT Thu Sep 17 2026
NEC033-123-180430-
/O.NEW.KCYS.FA.Y.0019.260918T0127Z-260918T0430Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cheyenne NE-Morrill NE-
727 PM MDT Thu Sep 17 2026
...FLOOD ADVISORY IN EFFECT UNTIL 1030 PM MDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...North Central Cheyenne County in the panhandle of
Nebraska...
Southeastern Morrill County in the panhandle of Nebraska...
* WHEN...Until 1030 PM MDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Water over roadways.
* ADDITIONAL DETAILS...
- At 726 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 and 2 inches of rain have
fallen.
- Additional rainfall amounts of 0.5 to 1 inch are expected over
the area. This additional rain will result in minor flooding.
- Some locations that will experience flooding include...
Mainly rural areas of North Central Cheyenne and Southeastern
Morrill Counties.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, dont drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4144 10292 4151 10292 4158 10282 4152 10266
4142 10273 4136 10284 4142 10292
$$
Vasquez
Action: Continued Issued At: 2026-09-17 21:49:58
617
WGUS85 KCYS 180249
FLSCYS
Flood Advisory
National Weather Service Cheyenne WY
849 PM MDT Thu Sep 17 2026
.Training storms this evening have dropped estimated 1 to 2 inches of
rain. Additional storms are moving in and developing near the
advisory area.
NEC033-123-180430-
/O.CON.KCYS.FA.Y.0019.000000T0000Z-260918T0430Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cheyenne NE-Morrill NE-
849 PM MDT Thu Sep 17 2026
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1030 PM MDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...North Central Cheyenne County in the panhandle of
Nebraska...
Southeastern Morrill County in the panhandle of Nebraska...
* WHEN...Until 1030 PM MDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Water over roadways.
* ADDITIONAL DETAILS...
- At 848 PM MDT, trained weather spotters reported heavy rain in
the advisory area due to thunderstorms. Minor flooding is already
occurring. Between 1 and 2.5 inches of rain have fallen.
- Additional rainfall amounts of 0.25 to 0.5 inches are expected
over the area. This additional rain will result in minor
flooding.
- Some locations that will experience flooding include...
Mainly rural areas of North Central Cheyenne and Southeastern
Morrill Counties.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, dont drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4144 10292 4151 10292 4158 10282 4152 10266
4142 10273 4139 10278 4136 10284 4140 10289
4142 10292
$$
RV
Action: Cancelled Issued At: 2026-09-17 22:57:00
008
WGUS85 KCYS 180356
FLSCYS
Flood Advisory
National Weather Service Cheyenne WY
956 PM MDT Thu Sep 17 2026
NEC033-123-180406-
/O.CAN.KCYS.FA.Y.0019.000000T0000Z-260918T0430Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cheyenne NE-Morrill NE-
956 PM MDT Thu Sep 17 2026
...FLOOD ADVISORY IS CANCELLED...
The Flood Advisory is cancelled for a portion of panhandle Nebraska,
including the following areas, Cheyenne and Morrill.
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 4144 10292 4151 10292 4158 10282 4152 10266
4142 10273 4139 10278 4136 10284 4140 10289
4142 10292
$$
Vasquez
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