Hydrologic Outlook

Hydrologic Outlook
COC007-029-033-037-045-051-053-067-083-085-091-097-111-113-121915-

Hydrologic Outlook
National Weather Service Grand Junction CO
146 PM MDT Thu May 8 2025


 Risk of areal flooding and elevated stream flows from rapid snowmelt

...EXISTING CONDITIONS...
Recent storms have brought several inches of new snow to mid to high
elevations (8500` to 10,000`) over the San Juans mountains, nosing
along the Divide across Central Colorado. With forecast temperatures
running 5 to 15 degrees above normal and the potential for showers
and storms along the Divide each afternoon through the weekend, this
region of western Colorado is vulnerable to enhanced runoff and
elevated stream flows from rapid snowmelt.

...PRECIPITATION...
Isolated to scattered showers and storms developing each afternoon
favor high terrain across the southwest San Juans and along the
spine of the Divide. Due to warming conditions, precipitation in the
form of rain is possible as high as 10,000`. Although anticipated
storm totals are low, generally 0.1" to 0.2", rain on snow could
enhance the rate of snowmelt.

...STREAMFLOW CONDITIONS AND RUNOFF FORECASTS...
Streams and rivers in the area will see elevated flows of
dangerously cold water over the next several days. Low-lying areas
across mountainous terrain (8500` to 10,000`) are most susceptible
to swelling of area streams and/or localized inundation.

Stay away from fast moving water and exercise caution near
riverbanks and streams.

Updated weather and water products and forecasts are available from
the NWS Grand Junction`s website at:

Www.weather.gov/gjt
$$

ERW

Hydrologic Outlook
COC003-015-021-023-027-043-055-065-071-079-105-109-091930-

Hydrologic Outlook
National Weather Service Pueblo CO
124 PM MDT Thu May 8 2025


Risk of enhanced runoff and elevated stream flows from rapid snowmelt

...EXISTING CONDITIONS...
Recent storms have brought several inches of snow to mid to high
elevations (8500`->10500`) over the eastern San Juan and Sangre de
Cristo Mountains of south-central Colorado, and along the
Continental Divide of central Colorado. With upcoming precipitation,
warming temperatures, and possible rain-on-snow for mid to high
elevations, this region of Colorado is vulnerable to enhanced runoff
and elevated stream flows from rapid snowmelt.

...PRECIPITATION...
There is a roughly 35% chance of 0.1" or more of liquid
precipitation over much of the area of concern later today (5/8)
through Saturday afternoon. Precipitation in the form of rain could
occur as high as 10,000 feet over the next two days. This elevated
chance of rain-on-snow, along with warmer temperatures, could
accelerate melting of new and existing snowpack.


...STREAMFLOW CONDITIONS AND RUNOFF FORECASTS...
Streams and rivers in the area could see elevated flows of
dangerously cold water over the next several days. Low lying areas
and valley floors could see some minor inundation from snowmelt.
Stay away from fast moving water, exercise caution near riverbanks
and stay alert to watches and warnings from the National Weather
Service.


You can also find additional weather and water products and
forecasts at the NWS Pueblo website at:

Https://www.weather.gov/pub


$$

JML