Flood Warning for Portneuf, Idaho
Flood Statement
National Weather Service Pocatello ID
1158 AM MDT Fri May 3 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.
IDC005-041900-
/O.CON.KPIH.FL.W.0002.000000T0000Z-000000T0000Z/
/TOPI1.1.SM.240424T0603Z.240507T0000Z.000000T0000Z.NR/
1158 AM MDT Fri May 3 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 11:15 AM MDT Friday the stage was 4.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 11:15 AM MDT Friday was 4.1 feet.
- Forecast...The river is expected to rise to a crest of 4.6
feet Monday evening.
- 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 Sat Sun Mon
Portneuf River
Topaz 4.0 4.0 Fri 11 am MD 4.1 4.3 4.6
LAT...LON 4275 11232 4281 11223 4265 11206 4287 11202
4287 11185 4248 11203
Flood Warning for Portneuf, Idaho
Flood Statement
National Weather Service Pocatello ID
1157 AM MDT Fri May 3 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.
IDC005-041900-
/O.CON.KPIH.FL.W.0001.000000T0000Z-000000T0000Z/
/PIHI1.2.SM.240405T1000Z.240508T0000Z.000000T0000Z.NO/
1157 AM MDT Fri May 3 2024
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Portneuf River at Pocatello.
* WHEN...Until further notice.
* IMPACTS...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 11:00 AM MDT Friday the stage was 10.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 11:00 AM MDT Friday was 10.3 feet.
- Forecast...The river will fall to 10.0 feet Sunday morning.
It will then rise to 10.8 feet early Wednesday morning. It
will fall to 10.4 feet Thursday evening. It will then rise to
10.5 feet Friday, May 10. It will fall again but remain above
flood stage.
- Flood stage is 8.5 feet.
- Flood History...This crest compares to a previous crest of
10.7 feet on 01/09/1973.
- 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 10.1 Fri 11 am MD 10.0 10.2 10.7
LAT...LON 4294 11262 4298 11250 4283 11236 4281 11223
4275 11232 4277 11241