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Sunday, Aug 16, 2026 10:43:44

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Areal Flood Advisory 0043
Issued by the Riverton Forecast Office

Action Issued Starts Expiration
New 2026-08-13 20:38:03 2026-08-13 20:37:00 2026-08-13 22:30:00
Expired 2026-08-13 22:23:07 2026-08-13 22:30:00


Action: New
Issued At: 2026-08-13 20:38:03

446 
WGUS85 KRIW 140137
FLSRIW

Flood Advisory
National Weather Service Riverton WY
737 PM MDT Thu Aug 13 2026

WYC025-140330-
/O.NEW.KRIW.FA.Y.0043.260814T0137Z-260814T0330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Natrona WY-
737 PM MDT Thu Aug 13 2026

...FLOOD ADVISORY IN EFFECT UNTIL 930 PM MDT THIS EVENING...

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

* WHERE...East Central Natrona County in central Wyoming...

* WHEN...Until 930 PM MDT.

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

* ADDITIONAL DETAILS...
  - At 733 PM MDT, Doppler radar indicated heavy rain due to
    thunderstorms is occurring or will be occurring shortly. Minor
    flooding is expected to begin shortly in the advisory area.
  - 0.5 to 1.5 inches of rain fell across much of Casper this
    morning. Additional rainfall amounts of 0.5 to 1 inch are
    expected over the area. This additional rain will result in minor
    flooding due to saturated grounds and heavy rain.
  - Some locations that will experience flooding include...
    Casper, Mills, Evansville, Red Butte, Paradise Valley, Fort
    Caspar Campground, Central Wyoming Fairgrounds and Casper Events
    Center.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 4281 10643 4286 10641 4287 10634 4287 10626
      4283 10625 4279 10635 4279 10639


$$

Gerhardt


Action: Expired
Issued At: 2026-08-13 22:23:07

223 
WGUS85 KRIW 140322
FLSRIW

Flood Advisory
National Weather Service Riverton WY
922 PM MDT Thu Aug 13 2026

WYC025-140332-
/O.EXP.KRIW.FA.Y.0043.000000T0000Z-260814T0330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Natrona WY-
922 PM MDT Thu Aug 13 2026

...FLOOD ADVISORY WILL EXPIRE AT 930 PM MDT THIS EVENING...

The Flood Advisory across the Casper area will expire at 930 PM MDT
this afternoon.

The heavy rain has ended. Urban area and small stream flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.

&&

LAT...LON 4281 10643 4286 10641 4287 10634 4287 10626
      4283 10625 4279 10635 4279 10639


$$

Lowe



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