Watches, Warnings & Advisories



3 products issued by NWS for: Pocatello ID

Flood Warning

Flood Statement
National Weather Service Pocatello ID
1222 PM MDT Fri May 17 2024

...The Flood Warning continues for the following rivers in Idaho...

  Portneuf River at Pocatello affecting Bannock County.

.Warm temperatures will melt high mountain snowpack and keep river
flows elevated, though overall river flow is slightly decreasing due
to a diminishing snowpack.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution is urged when walking near riverbanks.

Motorists should not attempt to drive around barricades or drive
cars through flooded areas.

Additional information is available at www.weather.gov/pocatello.

&&

IDC005-182000-
/O.CON.KPIH.FL.W.0001.000000T0000Z-240525T0900Z/
/PIHI1.2.SM.240405T1000Z.240515T1645Z.240525T1949Z.NO/
1222 PM MDT Fri May 17 2024

...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL SATURDAY, MAY
25...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Portneuf River at Pocatello.

* WHEN...Until Saturday, May 25.

* IMPACTS...At 8.0 feet, Water will encroach onto portions of the
  bike and walking trail next to the river in Sacajawea Park in
  Pocatello.
  At 8.5 feet, Sections of Sacajawea Park will be under water and
  the trail is usually closed at this level. Marsh Creek near Inkom
  may also be over its banks.
  At 9.2 feet, Flooding of low lying agricultural land and pasture
  will occur in the Inkom and Blackrock area. Lowland flooding is
  likely along sections of the river between Portneuf Gap and the
  Cheyenne Avenue Bridge in Pocatello.
  At 9.4 feet, Water will encroach around sitting benches near the
  river at the Pacific Recycling Trailhead.

* ADDITIONAL DETAILS...
  - At 10:45 AM MDT Friday the stage was 9.5 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 10:45 AM MDT Friday was 9.6 feet.
  - Forecast...The river is expected to fall below flood stage
    Saturday, May 25 and continue falling to 8.3 feet Monday, May
    27.
  - Flood stage is 8.5 feet.
  - Flood History...This crest compares to a previous crest of
    9.4 feet on 04/26/1986.
  - http://www.weather.gov/safety/flood

&&

              Fld   Observed           Forecasts (12 pm MDT)
Location      Stg   Stg   Day/Time     Sat   Sun   Mon

Portneuf River
Pocatello     8.5   9.5   Fri 10 am MD 9.4   9.3   9.2


&&

LAT...LON 4294 11262 4298 11250 4283 11236 4281 11223
      4275 11232 4277 11241


$$

TW




Flood Advisory

Flood Advisory
National Weather Service Pocatello ID
1221 PM MDT Fri May 17 2024

...The Flood Advisory continues for the following rivers in Idaho...

  Portneuf River at Topaz affecting Bannock County.

.Warm temperatures will melt high mountain snowpack and increase
river flows.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

River flows will remain near of slightly above flood stage today and
possibly tomorrow before likely dropping off in the next couple of
days due to cooler temperatures and a diminishing snowpack.

Caution is urged when walking near riverbanks.

Additional information is available at www.weather.gov/pocatello.

&&

IDC005-182000-
/O.CON.KPIH.FL.Y.0003.000000T0000Z-000000T0000Z/
/TOPI1.N.SM.000000T0000Z.000000T0000Z.000000T0000Z.NR/
1221 PM MDT Fri May 17 2024

...FLOOD ADVISORY FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...

* WHAT...Flooding caused by snowmelt continues. Snowmelt was
  slightly higher yesterday due to warmer temperatures. Snowmelt
  will keep river levels higher but snowmelt and river levels will
  start to drop off this next week due to cooler temperatures and a
  diminishing snowpack.

* WHERE...Portneuf River at Topaz.

* WHEN...Until further notice.

* IMPACTS...At 4.0 feet, Lowland and crop field flooding possible
  from Pebble Creek to Inkom.

* ADDITIONAL DETAILS...
  - At 11:15 AM MDT Friday the stage was 4.0 feet.
  - Forecast...The river is expected be just above flood stage of
    4.0 feet today. Then, it will then likely fall below flood
    stage early tomorrow afternoon.
  - Action stage is 3.5 feet.
  - Flood stage is 4.0 feet.
  - http://www.weather.gov/safety/flood

&&

              Fld   Observed           Forecasts (12 pm MDT)
Location      Stg   Stg   Day/Time     Sat   Sun   Mon

Portneuf River
Topaz         4.0   4.0   Fri 11 am MD 4.0   4.0   3.9


&&

LAT...LON 4275 11232 4281 11223 4265 11206 4287 11202
      4287 11185 4248 11203


$$

TW




High Wind Warning

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
212 AM MDT Fri May 17 2024

IDZ052>054-172100-
/O.CON.KPIH.HW.W.0002.240517T1800Z-240518T0200Z/
Arco/Mud Lake Desert-Upper Snake River Plain-Lower Snake River
Plain-
Including the cities of Fort Hall, St. Anthony, Pocatello,
American Falls, Idaho Falls, Shelley, Craters of the Moon NM,
Blackfoot, INL, Rexburg, and Mud Lake
212 AM MDT Fri May 17 2024

...HIGH WIND WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT
THIS EVENING...

* WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected.

* WHERE...Fort Hall, St. Anthony, Pocatello,
  American Falls, Idaho Falls, Shelley, Craters of the Moon,
  Blackfoot, INL, Rexburg, and Mud Lake

* WHEN...From noon today to 8 PM MDT this evening.

* IMPACTS...Travel will be difficult, especially for high profile
  vehicles. Isolated damage to trees, powerlines, signs, and
  outbuildings is expected, along with isolated power outages. Loose
  outdoor objects will be blown around. Areas of blowing dust may
  reduce visibilities. Strong winds and rough waves on area lakes
  will create hazardous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Secure or bring inside loose outdoor objects before the high winds
begin. During the high winds, avoid being outside in forested areas
or around trees, branches, and powerlines. Use caution if you must
drive, and keep both hands firmly on the steering wheel. Drivers of
high profile vehicles should consider delaying travel until the high
winds subside. Boaters on area lakes should use extra caution since
strong winds and rough waves can overturn small craft.

&&

$$