Area Forecast Discussion
Issued by NWS Pocatello, ID

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 15 16 17 18
FXUS65 KPIH 260917

Area Forecast Discussion
National Weather Service Pocatello ID
317 AM MDT Fri May 26 2017

.SHORT TERM...Today through Sun night. Upper level low centered
right over the forecast area is already producing showers and will
continue through the overnight period tonight. Upper levels will
get cold enough to bring instability for afternoon and evening
thunderstorms. Cloud cover will keep temperatures cool today. The
low begins to clear out on Sat, with only the ID-WY border region
having showers. The high continues to build for Sun and Sun night,
allowing strong warm up to the highs from day to day, 8 to 12 deg
F each day. With the high dominating, wind should continue light
with only thunderstorm outflows today to be concerned about.

.LONG TERM...Memorial Day through Friday. An upper ridge remains
the dominant pattern over the west thru Wed. Limited moisture
flowing into the ridge is expected to result in isolated aftn/eve
tstms over the central mtns and eastern highlands. A deep upper
trof moves into the Pac NW on Wed...then cuts off into a split
flow pattern on Thu. This results in an increased coverage of
showers/tstms on Thu...but mainly over the mtns. Another upper
trof moves into the Pac NW on Fri...maintaining the threat of
precip over the mtns. Temps will b running above normal thru
Wed...then cooling down Thu and Fri. Hedges


.AVIATION...An upper low moving into southern ID today will spread
showers and isold aftn tstms across the area. A rain/snow mix is
possible at KDIJ. Cigs may fall to MVFR cat this morning with precip
...then mainly low VFR this aftn. Conditions are expected to improve
later this eve. Hedges




$$ is the U.S. government's official web portal to all federal, state and local government web resources and services.