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
000
FXUS65 KPIH 220850
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
250 AM MDT Tue May 22 2018

.SHORT TERM...Today through Thursday...The overall weather pattern
has not changed with this forecast update. Abundant moisture has
lead us to increase chances for precipitation later this evening,
overnight and into Wednesday with QPF amounts increased a bit here
and there as well. Isolated to scattered thunderstorms are noted
in the forecast with the potential for some to bring hail and
gusty winds. Wednesday is looking like a more stratiform rain day
(cloudy, cooler) but we will still forecast a chance for thunderstorms
as instability is still fairly abundant. The upper low responsible
for all this activity is expected to track into Montana by
Thursday (actually mid-day Wednesday) which should clear up skies
for some portions of Idaho Thursday. A mention of showers and
thunderstorms will continue is still noted for the Central
Mountains/Divide regions however. NP/Valle

.LONG TERM...Friday through Tuesday.

Seeing better agreement in the models, which is not good news for
those who were hoping for an extended period of dry weather. Friday
looks mainly dry still. However, a low pressure system will move
onto the northern California coast. The low will move inland into
the Great Basin over the weekend which means more unsettled weather
across central and east Idaho. Expect more of the same...scattered
afternoon and evening thunderstorms.

Valle

&&

.AVIATION...Low pressure over the region will create another day of
scattered showers and thunderstorms. Expect vfr conditions except
near thunderstorms where gusty, erratic winds and lower ceilings and
visibilities are likely.

Valle

&&

.FIRE WEATHER...Low pressure over the region will produce scattered
showers and thunderstorms through Thursday. Gusty erratic winds and
small hail are likely near thunderstorms. Friday may be dry before
another system arrives for the weekend.

Valle

&&

.HYDROLOGY...Widespread 1/4 to 1/2 inch precipitation amounts are
forecast today and Wednesday upward of one inch of rainfall in the
Central Mountains, Upper Snake Highlands and Eastern Highlands.
This will bring the forecast on area rivers, creeks and streams
to rise. The Big Wood at Hailey remains in a Flood Advisory until
further notice with the latest forecast reaching minor flood
status toward the end of this week. Several other locations across
Idaho may reach action stage with the Henrys Fork at Rexburg
forecast to reach Minor Flood potentially this weekend. Temperatures
Wednesday will be cooler followed by a warming trend the remainder
of the week. NP/Valle

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$



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