Hydrometeorological Discussion
Issued by NWS California-Nevada RFC

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AGUS76 KRSA 131554
HMDRSA

Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
930 AM PST Wed Dec 13 2017

...DRY THROUGH THURSDAY...
...LIGHT PRECIP POSSIBLE OVER FAR NORTH ON FRIDAY...

.METEOROLOGICAL CONDITIONS (SHORT TERM: WED AM - SAT AM)...

Ridge of high pressure remains over the area today and Thursday for
continued dry conditions.  The ridge weakens on Friday as a weak
shortwave trough moves into the Pacific Northwest and brushes by the
far northern portion of the area. Light precipitation (generally
less than 0.10 inches) is possible around Crater Lake area in
Southern Oregon and over far Northern Nevada and possibly the Ruby
Mountains on Friday.

.METEOROLOGICAL CONDITIONS (LONG TERM: SAT AM - TUE AM)...

S/wv trof will be exiting northeast NV early in on Saturday as it
moves toward the Rocky Mountain states. Models show the upr ridge
continuing across the far eastern Pacific and west coast through
early next week. The 13/00Z EC shows it more of a Rex Block...while
the 13/00Z and 13/06Z GFS don`t depict the cutoff low. Either
way...dry conditions for the period...continuing well into next week.

.HYDROLOGICAL CONDITIONS...

No precipitation within CNRFC region over last 24 hours. River
contributions from baseflow, and snowmelt at higher elevations.
River locations are forecast to remain below monitor levels during
the forecast period (next 5 days).

More information on the CNRFC website at http://www.cnrfc.noaa.gov

HSO/DRK/BMM

$$



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