Bannock County Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth and road condition may be unsafe. Additional information is available at https://water.weather.gov/ahps2/ Stay tuned for further updates by listening to NOAA weather radio... or your local radio and TV stations.

Special Weather Statement issued May 10 at 6:32PM PDT by NWS Spokane WA

The NOAA Space Weather Prediction Center has observed extreme (G5) geomagnetic conditions Friday afternoon and expect severe (G4) conditions to continue through the weekend. * A Geomagnetic Storm of this strength can cause multiple and widespread issues with various power and communication systems. * Widespread voltage control problems may occur; some power grid systems may experience component failures, disruption of service and protective device trips. This could result in blackouts. * Pipeline currents can reach hundreds of amps. * GPS and other satellite navigation may be degraded or unavailable for days. * High Frequency (HF) radio propagation may be impossible in many areas for one or two days. * Low-frequency radio navigation can be out for hours. * Aurora may be visible at much lower latitudes. For Space Weather Information visit...www.swpc.noaa.gov For Weather Information visit...www.weather.gov

Flood Warning issued May 10 at 11:39AM MDT by NWS Pocatello ID

...The Flood Warning continues for the following rivers in Idaho... Blackfoot River near Shelley (Wolverine Canyon) affecting Bingham County. .Snow melt and increased reservoir releases will cause the river flows to become high. Expect minor flooding downstream from the dam. * WHAT...No flooding is currently forecast. * WHERE...Blackfoot River near Shelley (Wolverine Canyon). * WHEN...Until further notice. * IMPACTS...At 8.5 feet, From the mouth of Wolverine Canyon upstream to the Blackfoot Dam, water flooding may be possible. Unimproved campgrounds may have water seeping or ponding in them along with strong flows at river's edge. Flat areas along the river and croplands may have water ponding. * ADDITIONAL DETAILS... - At 10:30 AM MDT Friday the stage was 8.4 feet. - Forecast...No forecast is available for this location. - Flood stage is 8.5 feet. - Flood History...This crest compares to a previous crest of 8.4 feet on 06/05/1983. - http://www.weather.gov/safety/flood

Flood Warning issued May 10 at 11:36AM MDT by NWS Pocatello ID

...The Flood Warning continues for the following rivers in Idaho... Blackfoot River near Blackfoot (Butte Rd-Ft Hall) affecting Bingham County. .Snow melt and increased reservoir releases will cause the river flows to become high. Expect minor flooding downstream from the dam. * WHAT...Minor flooding is occurring. This approaches the flood of record. * WHERE...Blackfoot River near Blackfoot (Butte Rd-Ft Hall). * WHEN...Until further notice. * IMPACTS...At 5.8 feet, Lowland flooding possible from Interstate 15 to confluence of the Snake River. Homes and cattle operation near Riverton Road (900 W) bridge just north of Ferry Butte Road (500 S) will start to have water seeping near them. Other locations will have water approaching roadways between 550 W and Blackhawk Road. * ADDITIONAL DETAILS... - At 10:30 AM MDT Friday the stage was 6.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 AM MDT Friday was 6.3 feet. - Forecast...No forecast is available for this location. - Flood stage is 5.8 feet. - Flood History...This crest compares to a previous crest of 6.2 feet on 04/18/2017. - http://www.weather.gov/safety/flood

Flood Warning issued May 10 at 11:32AM MDT by NWS Pocatello ID

...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 increase river flows. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Portneuf River at Pocatello. * WHEN...Until further notice. * IMPACTS...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. * ADDITIONAL DETAILS... - At 10:45 AM MDT Friday the stage was 9.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:45 AM MDT Friday was 9.5 feet. - Forecast...The river is expected to rise to a crest of 9.3 feet this evening. - Flood stage is 8.5 feet. - Flood History...This crest compares to a previous crest of 9.3 feet on 04/27/2019. - http://www.weather.gov/safety/flood

Flood Advisory issued May 10 at 11:31AM MDT by NWS Pocatello ID

...The National Weather Service in Pocatello has issued a Flood Advisory for the following rivers in Idaho... Portneuf River at Topaz affecting Bannock County. .Warm temperatures will melt high mountain snowpack and increase river flows. * WHAT...Flooding caused by snowmelt is expected. * WHERE...Portneuf River at Topaz. * WHEN...From this morning until further notice. * IMPACTS...At 4.0 feet, Lowland and crop field flooding possible from Pebble Creek to Inkom. * ADDITIONAL DETAILS... - At 10:15 AM MDT Friday the stage was 3.8 feet. - Forecast...The river will fall to 3.7 feet this afternoon. It will then rise to 3.9 feet Sunday evening. It will fall to 3.8 feet Monday evening. It will then rise to 3.9 feet Friday, May 17. It will fall again and remain below flood stage. - Action stage is 3.5 feet. - Flood stage is 4.0 feet. - http://www.weather.gov/safety/flood