Flash Flood Watch

Flood Watch
National Weather Service Boise ID
152 PM MDT Fri Aug 15 2025

IDZ011-012-033-ORZ061>064-161200-
/O.NEW.KBOI.FF.A.0003.250816T1800Z-250817T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
West Central Mountains-Lower Treasure Valley-Upper Weiser River-
Harney County-Baker County-Malheur County-Oregon Lower Treasure
Valley-
Including the cities of Glendale, Indian Valley, Fruitvale,
Caldwell, Bear, Mesa, Venator, Nyssa, Cuprum, Crane, Dunnean,
Cascade, Ontario, Nampa, Malheur City, Council, Ola, Goodrich,
Big Creek, Diamond, Burns, Baker, New Princeton, Warm Lake,
Buchanan, McCall, and Cambridge
152 PM MDT Fri Aug 15 2025 /1252 PM PDT Fri Aug 15 2025/

...FLASH FLOOD WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of southwest Idaho, including the following
  areas, Lower Treasure Valley, Upper Weiser River and West Central
  Mountains and Oregon, including the following areas, Baker County,
  Harney County, Malheur County and Oregon Lower Treasure Valley.

* WHEN...From Saturday afternoon through Saturday evening.

* IMPACTS...Heavy rainfall could trigger flash flooding or debris
  flows in and near recent wildfire burn scars.

* ADDITIONAL DETAILS...
  - National Weather Service Meteorologists are forecasting heavy
    rainfall over burn scars, which may lead to flash flooding
    and debris flows.
  - https://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

JDS

Red Flag Warning

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
856 PM MDT Fri Aug 15 2025

IDZ411-413-475-476-161200-
/O.NEW.KPIH.FW.W.0018.250816T1800Z-250817T0300Z/
Centennial Mountains and Snake River Range/Targhee NF-
Caribou Range/Caribou NF-East Salmon River Mountains/Salmon NF-
Lemhi and Lost River Range/Challis NF-
856 PM MDT Fri Aug 15 2025

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SATURDAY FOR
SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 411, 413, 475, AND
476...

The National Weather Service in Pocatello has issued a Red Flag
Warning for scattered thunderstorms, which is in effect from noon
to 9 PM MDT Saturday.

* AFFECTED AREA...Fire Weather Zone 411 Centennial Mountains and
  Snake River Range/Targhee NF, Fire Weather Zone 413 Caribou
  Range/Caribou NF, Fire Weather Zone 475 East Salmon River
  Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost
  River Range/Challis NF.

* THUNDERSTORMS...25 to 45 percent coverage.

* OUTFLOW WINDS...A dry low level environment will promote
  stronger storms capable of producing wind gusts up to 50 to 55
  mph with isolated stronger gusts to 60 mph.

* IMPACTS...Critical fire weather conditions are expected Friday
  afternoon and evening. Lightning may generate new fire starts.
  Any new fire starts or existing fires may spread rapidly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$