Special Weather Statement, NWS Pocatello, ID

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
114 PM MDT THU AUG 7 2014

.DISCUSSION...THE LOW PRESSURE SYSTEM THAT HAS BROUGHT HEAVY RAIN
TO THE AREA OVER THE PAST COUPLE DAYS IS BEGINNING TO MOVE
EASTWARD. THE LOW IS LOCATED NEAR THE IDAHO/UTAH BORDER AND WILL
CONTINUE TO MOVE EASTWARD THROUGH THE NIGHT. SHOWERS AND
THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGHOUT THE
AFTERNOON...MOST NOTABLY IN THE MOUNTAINS AND HIGHLANDS. SIMILAR
TO CONDITIONS ON WEDNESDAY...HEAVY DOWNPOURS ALONG WITH SMALL HAIL
ARE THE PRIMARY THREATS FROM THESE STORMS THIS AFTERNOON AND
TONIGHT.

SLIGHTLY DRIER AIR WILL WORK INTO THE REGION FOR THE WEEKEND.
HOWEVER THE ATMOSPHERE IS STILL VERY MOIST WITH PRECIPITABLE WATER
VALUES AROUND 0.9 INCHES. THE GFS AND NAM BOTH SHOW THUNDERSTORMS
MOVING THROUGH THE CENTRAL MOUNTAINS TOMORROW AFTERNOON...NOT SO
CERTAIN IN OTHER LOCATIONS. WILL ISSUE A FLASH FLOOD WATCH FOR
FRIDAY AFTERNOON PRIMARILY FOR BLAINE COUNTY AND THE BEAVER CREEK
BURN SCAR.

CONVECTION LOOKS A LITTLE MORE WIDESPREAD ON SATURDAY AS AN UPPER
LEVEL SHORTWAVE TROUGH WILL MOVE THROUGH THE REGION. ONCE
AGAIN...HEAVY RAIN IS POSSIBLE WITH THUNDERSTORMS. THE THREAT FOR
ISOLATED TO SCATTERED AFTERNOON THUNDERSTORMS WILL PERSIST THROUGH
AT LEAST MIDWEEK AS MODELS CONTINUE TO INDICATE THAT MONSOONAL FLOW
WILL PERSIST OVER THE REGION.

VALLE

&&

.AVIATION...HAVE SHOWERS AND VICINITY THUNDERSTORMS AT ALL TAF SITES
TODAY WITH MOST DEVELOPING NEAR SUN AND BYI EARLY.  EXPECT VFR
CONDITIONS EVEN IN SHOWERS BUT COULD SEE POCKETS OF MVFR IN HEAVIEST
DOWNPOURS.  EXPECT ISOLATED SHOWERS AND THUNDERSTORMS AGAIN FRIDAY
BUT EXPECT COVERAGE TO BE LESS WITH SUN MOST LIKELY SITE TO GET
ACTIVITY.  DO NOT EXPECT STRONG WINDS EXCEPT NEAR THUNDERSTORM
OUTFLOW.
GK

&&

.FIRE WEATHER...THE EXTREMELY MOIST AIRMASS INFLUENCED BY UPPER
LEVEL LOW PRESSURE SYSTEM MOVING THROUGH IDAHO TODAY REMAINS IN
PLACE.   VERY HIGH HUMIDITY CONTINUES WITH WIDESPREAD SHOWERS AND
ISOLATED TO WIDELY SCATTERED THUNDERSTORMS EXPECTED THROUGH EARLY
EVENING.   EXPECT SLIGHTLY DRIER CONDITIONS FRIDAY BUT HUMIDITY
SHOULD REMAIN WELL ABOVE CRITICAL LEVELS.  EXPECT ISOLATED TO WIDELY
SCATTERED SHOWERS AND THUNDERSTORMS ONCE AGAIN WITH LESS RAIN
COVERAGE EXPECTED.
GK

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH UNTIL MIDNIGHT MDT TONIGHT IDZ017>025-031-032.

FLASH FLOOD WATCH FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING
IDZ031.

&&

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
435 PM MDT THU AUG 7 2014

IDZ021-072315-
BINGHAM ID-POWER ID-BANNOCK ID-
435 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHWESTERN BANNOCK COUNTY IN SOUTHEAST IDAHO
  NORTHEASTERN POWER COUNTY IN SOUTHEAST IDAHO
  SOUTH CENTRAL BINGHAM COUNTY IN SOUTHEAST IDAHO

AT 430 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM WEST OF POCATELLO...MOVING SLOWLY NORTHWEST AT 5
MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN. INDIVIDUALS LIVING ON THE WEST BENCH MAY SEE SWIFT
WATER RUNNING DOWN NORMALLY DRY GULLIES AND STREATS THROUGH 530 PM
MDT.

LOCATIONS IMPACTED INCLUDE...
   CHUBBUCK...
   POCATELLO WEST BENCH...

LAT...LON 4295 11270 4303 11248 4284 11240 4283 11242
      4280 11249
TIME...MOT...LOC 2234Z 142DEG 4KT 4287 11247

HUSTON

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
458 PM MDT THU AUG 7 2014

IDZ021-023-072345-
CARIBOU ID-BINGHAM ID-BANNOCK ID-
458 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  NORTH CENTRAL BANNOCK COUNTY IN SOUTHEAST IDAHO
  SOUTH CENTRAL BINGHAM COUNTY IN SOUTHEAST IDAHO
  NORTHWESTERN CARIBOU COUNTY IN SOUTHEAST IDAHO

UNTIL 545 PM MDT

AT 456 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS NEAR FORT HALL PUTNAM LODGE AND INKOM..MOVING
NORTH AT 5 MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN.

LOCATIONS IMPACTED INCLUDE...
   FORT HALL PUTNAM LODGE...
   FORT HALL EAGLE LODGE...

LAT...LON 4300 11243 4318 11247 4317 11192 4275 11195
      4273 11222
TIME...MOT...LOC 2257Z 181DEG 6KT 4299 11233

EP

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
512 PM MDT THU AUG 7 2014

IDZ020-080000-
JEFFERSON ID-BONNEVILLE ID-
512 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  NORTH CENTRAL BONNEVILLE COUNTY IN SOUTHEAST IDAHO
  SOUTHEASTERN JEFFERSON COUNTY IN SOUTHEAST IDAHO

UNTIL 600 PM MDT

AT 510 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR IDAHO FALLS..MOVING NORTH AT 5 MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN.

LOCATIONS IMPACTED INCLUDE...
   OSGOOD...

LAT...LON 4368 11217 4368 11188 4348 11197 4348 11207
TIME...MOT...LOC 2312Z 181DEG 4KT 4354 11202

EP

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
527 PM MDT THU AUG 7 2014

IDZ018-080030-
CUSTER ID-
527 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  WEST CENTRAL CUSTER COUNTY IN CENTRAL IDAHO

AT 524 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR STANLEY.  THIS STORM WAS NEARLY STATIONARY
AND IS EXPECTED TO PRODUCE WIND GUSTS UP TO 40 MPH ALONG WITH HEAVY
RAIN THROUGH 630 PM MDT.

LOCATIONS IMPACTED INCLUDE...
   STANLEY...

LAT...LON 4423 11514 4435 11495 4419 11469 4402 11498
      4408 11503 4409 11501 4412 11506 4415 11503
      4417 11509
TIME...MOT...LOC 2326Z 320DEG 1KT 4422 11497

HUSTON

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
530 PM MDT THU AUG 7 2014

IDZ017-018-020-031-032-080030-
MINIDOKA ID-LINCOLN ID-BUTTE ID-BLAINE ID-CUSTER ID-
530 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  EXTREME SOUTHEASTERN CUSTER COUNTY IN CENTRAL IDAHO
  CENTRAL BLAINE COUNTY IN CENTRAL IDAHO
  SOUTHWESTERN BUTTE COUNTY IN EAST CENTRAL IDAHO
  EXTREME NORTHEASTERN LINCOLN COUNTY IN SOUTH CENTRAL IDAHO
  EXTREME NORTH CENTRAL MINIDOKA COUNTY IN SOUTH CENTRAL IDAHO

AT 524 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF THUNDERSTORMS EXTENDING FROM 16 MILES WEST OF GROUSE TO 8
MILES NORTH OF CRATERS OF MOON...MOVING SOUTHWEST AT 15 MPH.

WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
HEAVY RAIN THROUGH 630 PM MDT.

LOCATIONS IMPACTED THROUGH 630 PM MDT INCLUDE...
   CRATERS OF MOON...
   CAREY AND PICABO...

LAT...LON 4369 11401 4358 11340 4317 11364 4329 11425
TIME...MOT...LOC 2329Z 023DEG 13KT 4359 11394 4352 11357

HUSTON

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
549 PM MDT THU AUG 7 2014

IDZ019-080045-
CLARK ID-FREMONT ID-
549 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHEASTERN FREMONT COUNTY IN EASTERN IDAHO
  NORTHEASTERN CLARK COUNTY IN EASTERN IDAHO

AT 542 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF THUNDERSTORMS ACROSS SOUTHWEST MONTANA MOVING SOUTH AT 10
MPH TOWARDS HENRYS LAKE AND ISLAND PARK.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING AS THEY CROSS THE DIVIDE
AND MOVE INTO THE ISLAND PARK REGION THROUGHH 645 PM MDT.

LOCATIONS IMPACTED INCLUDE...
   ISLAND PARK VILLAGE...
   MACKS INN...
   ISLAND PARK...PONDS LODGE...SHOTGUN VILLAGE...LAST CHANCE...

LAT...LON 4402 11105 4403 11104 4413 11104 4414 11108
      4448 11109 4458 11122 4467 11126 4475 11138
      4471 11149 4459 11153 4455 11148 4457 11169
      4452 11182 4457 11187 4453 11210 4455 11217
      4454 11218 4437 11159
TIME...MOT...LOC 2347Z 021DEG 11KT 4481 11194 4466 11143
          4435 11094

HUSTON