WWUS85 KBOI 222203
SPSBOI

Special Weather Statement
National Weather Service Boise ID
403 PM MDT Sat Aug 22 2026
 
IDZ013-222245-
Boise Mountains ID-
403 PM MDT Sat Aug 22 2026

...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL BOISE AND
NORTHEASTERN ELMORE COUNTIES THROUGH 445 PM MDT...

At 402 PM MDT, Doppler radar was tracking a strong thunderstorm near
Graham Guard Station, or 20 miles southeast of Lowman, moving
northeast at 40 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Areas of blowing dust possible. Minor 
         damage to outdoor objects is possible.

Locations impacted include...
Wapiti Burn Scar, Grandjean, Highway 21, and Graham Guard Station.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4399 11499 4377 11527 4389 11547 4420 11517
      4416 11503 4414 11502 4412 11505 4408 11500
      4408 11503 4404 11505 4401 11502 4401 11498
TIME...MOT...LOC 2202Z 219DEG 34KT 4390 11531 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

$$

SH