Flood Warning

Flood Statement
National Weather Service Pocatello ID
220 PM MDT Thu Apr 25 2024

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

  Portneuf River at Pocatello affecting Bannock County.

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.

&&

IDC005-262100-
/O.CON.KPIH.FL.W.0001.000000T0000Z-000000T0000Z/
/PIHI1.2.SM.240405T1000Z.240428T1200Z.000000T0000Z.NO/
220 PM MDT Thu Apr 25 2024

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

* WHAT...Minor flooding is occurring and moderate flooding is
  forecast for later today.

* WHERE...Portneuf River at Pocatello.

* WHEN...Until further notice.

* IMPACTS...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.
  At 10.0 feet, Significant flooding of agricultural land will occur
  from the Inkom and Blackrock area. Lowland flooding will occur
  along sections of the river in Pocatello from Portneuf Gap to the
  Cheyenne Avenue Bridge and downstream of the concrete channel
  beginning at Sacajawea Park.


* ADDITIONAL DETAILS...
  - At 1:45 PM MDT Thursday the stage was 10.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 1:45 PM MDT Thursday was 10.0 feet.
  - Forecast...The river is expected to rise to a crest of 11.0
    feet Sunday morning.
  - Flood stage is 8.5 feet.
  - Flood History...This crest compares to a previous crest of
    11.1 feet on 02/01/1911.
  - http://www.weather.gov/safety/flood

&&

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

Portneuf River
Pocatello     8.5   10.0  Thu 1 pm MDT 10.2  10.7  11.0


&&

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


$$

TW

Flood Statement
National Weather Service Pocatello ID
222 PM MDT Thu Apr 25 2024

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

  Portneuf River at Topaz affecting Bannock County.

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.

&&

IDC005-262100-
/O.CON.KPIH.FL.W.0002.000000T0000Z-000000T0000Z/
/TOPI1.1.SM.240424T0603Z.240428T1800Z.000000T0000Z.NR/
222 PM MDT Thu Apr 25 2024

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

* WHAT...Minor flooding is occurring and minor flooding is forecast.
  This approaches the flood of record.

* 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 1:15 PM MDT Thursday the stage was 4.2 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 1:15 PM MDT Thursday was 4.3 feet.
  - Forecast...The river will fall to 4.2 feet Saturday morning.
    It will then rise to 4.4 feet Sunday evening. It will fall to
    4.2 feet Thursday, May 02. It will then rise to 4.3 feet
    Saturday, May 04. It will fall to 4.2 feet Sunday, May 05
    then rise again.
  - Flood stage is 4.0 feet.
  - Flood History...This crest compares to a previous crest of
    4.5 feet on 02/22/2017.
  - http://www.weather.gov/safety/flood

&&

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

Portneuf River
Topaz         4.0   4.2   Thu 1 pm MDT 4.3   4.3   4.4


&&

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


$$

TW