Weather Alerts for Eastern Magic Valley

Issued by the National Weather Service

       River Flood Warning      

River Flood Warning  RIVER FLOOD WARNING   River Flood Warning
EASTERN MAGIC VALLEY

Areas Affected:
Blaine
Effective: Sun, 6/4 11:33am Updated: Mon, 6/5 7:01am Urgency: Expected
Expires: Mon, 6/5 3:15pm Severity:  Moderate  Certainty: Likely

 
Details:
...The Flood Warning continues for the following rivers in Idaho...
Big Wood River at Hailey affecting Blaine County.
Additional information is available at www.weather.gov/pocatello.
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Big Wood River at Hailey.
* WHEN...Until further notice.
* IMPACTS...At 6.0 feet, Moderate flooding will occur along Cedar,
War Eagle, and Della Vista Drives in the lower subdivisions in
Hailey which may be inaccessible. FLooding in Riverview Drive area
of Bellevue. Draper Preserve in Hailey is inaccessible. Water may
be over some secondary roads in West Ketchum (Wood River Drive).
Gimlet subdivision will have some residents with flooding issues.
* ADDITIONAL DETAILS...
- At 10:45 AM MDT Sunday the stage was 5.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:45 AM MDT Sunday was 5.8 feet.
- Forecast...The river will oscillate above moderate flood
stage with a maximum value of 6.5 feet early Saturday
afternoon, which will be very dependent of afternoon showers.
- Flood stage is 5.0 feet.
- Flood History...This crest compares to a previous crest of
6.6 feet on 06/05/1997.
- http://www.weather.gov/safety/flood
&&
Fld   Observed           Forecasts (12 pm MDT)
Location      Stg   Stg   Day/Time     Mon   Tue   Wed
Big Wood River
Hailey        5.0   5.7   Sun 10 am MD 5.9   6.0   5.8
&&

Information:
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Caution is urged when walking near riverbanks.

Flash Flood Watch  FLASH FLOOD WATCH   Flash Flood Watch
EASTERN MAGIC VALLEY

Areas Affected:
Blackfoot Mountains - Marsh and Arbon Highlands
Effective: Sat, 6/3 2:09pm Updated: Mon, 6/5 7:01am Urgency: Expected
Expires: Mon, 6/5 3:00pm Severity:  Severe  Certainty: Possible

 
Details:
...FLASH FLOOD WATCH FOR THE POTENTIAL FAILURE OF PORTNEUF DAM
SPILLWAY ON CHESTERFIELD RESERVOIR ON THE PORTNEUF RIVER REMAINS IN
EFFECT THROUGH MONDAY AFTERNOON...
* WHAT...Flash Flooding caused by a potential spillway failure is
possible at the Portneuf Dam on Chesterfield Reservoir.
* WHERE...A portion of southeast Idaho, including along the Portneuf
River downstream of Chesterfield Reservoir thorugh Pebble and
along Old Highway 30 south to Lava Hot Springs and downstream to
McCammon.
* WHEN...Through Monday afternoon.
* IMPACTS...Failure of the spillway may result in flash flooding of
low-lying areas below the dam, including areas that are already
experiencing flooding along the Portneuf River.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood

Information:
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued. PLAN NOW so you will know
what to do in an emergency.
Officials remain on site closely monitoring the situation. Please
follow Caribou County Sheriffs Office on social media and consider
signing up for Caribou County Alert Sense for the latest information.

CoCoRaHS (Community Collaborative Rain, Hail and Snow Network) Station Number: ID-GM-5 Live Lightning Map - USA Boise Skywarn Spotter ID: DO21 AlertID Northwestern Weather Network Southwestern Weather Network

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