Area Forecast Discussion
Issued by NWS Sacramento, CA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14
221
FXUS66 KSTO 150850
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
150 AM PDT Sat Jun 15 2024

.SYNOPSIS...
Critical fire weather conditions likely Saturday night through
Sunday night across the Sacramento Valley due to gusty northerly
winds and low relative humidity. Below average temperatures and
dry conditions continue over the next several days.

&&

.DISCUSSION...

Key Points
- A Red Flag Warning is in effect from 11 PM Saturday - 8 PM
  Sunday across the majority of the Sacramento Valley due to low
  daytime relative humidity, gusty northerly winds, and poor
  overnight recoveries.
- Northerly winds continue early next week maintaining some
  locally elevated fire weather conditions Monday and Tuesday

Skies are mostly clear across the region early this morning other
than some patches of high clouds moving through associated with
the PacNW trough. Onshore gradient continues to predominate other
than breezy northwest winds that have developed over the far
northern end of the Sacramento Valley. The trough will maintain
temperatures near to slightly below average into early next week
and precipitation chances will remain north of the region. Bouts
of north wind are expected in the Sacramento Valley, mainly Sunday
and again Monday, and combined with low RH will result in periods
of critical fire weather conditions and a Red Flag Warning remains
in effect.

&&

.EXTENDED DISCUSSION (Wednesday THROUGH Saturday)...
Warming trend expected through the extended forecast period as
upper troughing midweek weakens and progress and is eventually
replaced by upper ridging next weekend. As a result, near normal
high temperatures Wednesday will warm to triple digit heat
throughout most of the Central Valley by Saturday.

&&

.AVIATION...
VFR conditions over interior NorCal next 24 hrs. Sfc wind mainly
at or below 12 kts except vcnty of Delta SWly sfc up to 20 kts.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
Red Flag Warning from 11 PM this evening to 8 PM PDT Sunday for
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-Eastern Mendocino NF-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-Northern Sierra Foothills from 1000 to 3000 Ft. Includes
portions of Shasta-Trinity and Butte Units-Northern Sierra
Including Lassen NP and Plumas and Lassen NF/S West of the
Sierra Crest (West of Evans Peak-Grizzly Peak-Beckworth Peak)-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Southern Sacramento Valley in Yolo-Sacramento Far
Western Placer, southern Sutter and Solano County Below 1000 Ft.

&&

$$