Alert archive / Idaho / High Wind Watches in 2021

High Wind Watch 1, NWS Pocatello, ID

March 27, 202119 counties in Idaho

NWS Pocatello, ID issued this high wind watch at Mar 27, 2021, 2:01 PM MDT for 19 counties in Idaho. It took effect at Mar 28, 2021, 6:00 PM MDT. It was in force for .

The area

The counties it named.

The facts

Issued
Mar 27, 2021, 2:01 PM MDT (20:01 UTC)
In effect from
Mar 28, 2021, 6:00 PM MDT
Expired
Mar 28, 2021, 3:24 AM MDT
In force
Issued by
NWS Pocatello, ID

Counties Bannock County, ID, Bear Lake County, ID, Bingham County, ID, Blaine County, ID, Bonneville County, ID, Butte County, ID, Caribou County, ID, Cassia County, ID, Clark County, ID, Custer County, ID, Franklin County, ID, Fremont County, ID, Jefferson County, ID, Lincoln County, ID, Madison County, ID, Minidoka County, ID, Oneida County, ID, Power County, ID, Teton County, ID

The radar

The Pocatello radar (KSFX), 16 km from the middle of the area, began a volume at 20:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 8.0 hours before the alert went out and 274 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Salt Lake City I, UT at 12:00Z on 2021-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salt Lake City I, UT at 12:00Z on 2021-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1490 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

267 
WWUS75 KPIH 272001
NPWPIH

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
201 PM MDT Sat Mar 27 2021

IDZ066>074-281115-
/O.NEW.KPIH.HW.A.0001.210329T0000Z-210330T0200Z/
Centennial Mountains - Island Park-Beaverhead - Lemhi Highlands-
Lost River Valley-Lost River Range-Challis/Pahsimeroi Valleys-
Frank Church Wilderness-Sawtooth/Stanley Basin-Sun Valley Region-
Big Lost Highlands/Copper Basin-
Including the cities of Island Park, Kilgore, Dubois, Spencer, 
Edie School, Small, Howe, Arco, Mackay, Chilly, Borah Peak, 
Challis, Clayton, Stanley, Ketchum, Sun Valley, Galena, 
and Copper Basin
201 PM MDT Sat Mar 27 2021

...HIGH WIND WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY
EVENING...

* WHAT...West winds 25 to 35 mph with gusts up to 55 mph possible.

* WHERE...Ketchum, Stanley, Challis, Mackay, Arco, Dubois, Island
  Park.

* WHEN...From Sunday evening through Monday evening.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...Areas of blowing snow is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

IDZ051-055-075-281115-
/O.NEW.KPIH.HW.A.0001.210329T0300Z-210330T0200Z/
Shoshone/Lava Beds-Eastern Magic Valley-Wood River Foothills-
Including the cities of Shoshone, Richfield, Carey, Burley, 
Rupert, Heyburn, Oakley, Hailey, Bellevue, and Picabo
201 PM MDT Sat Mar 27 2021

...HIGH WIND WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY
EVENING...

* WHAT...West winds 25 to 35 mph with gusts up to 50 mph 
  possible.

* WHERE...Hailey, Bellevue, Picabo, Carey, Shoshone, Richfield,
  Burley.

* WHEN...From Sunday evening through Monday evening.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...Blowing dust is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

IDZ052>054-056>058-062-281115-
/O.NEW.KPIH.HW.A.0001.210329T0300Z-210330T0200Z/
Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-Southern Hills/Albion Mountains-
Raft River Region-Marsh and Arbon Highlands-Blackfoot Mountains-
Including the cities of Mud Lake, INL, Craters of the Moon NM, 
Idaho Falls, Rexburg, St. Anthony, Pocatello, Blackfoot, 
American Falls, Shelley, Fort Hall, Albion, Almo, Malta, 
Rockland, Holbrook, Inkom, McCammon, Downey, Lava Hot Springs, 
Grace, Soda Springs, Henry, and Bone
201 PM MDT Sat Mar 27 2021

...HIGH WIND WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY
EVENING...

* WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph 
  possible.

* WHERE...Mud Lake, INL, Craters of the Moon, Idaho Falls,
  Rexburg, St. Anthony, Pocatello, Blackfoot, American Falls, Fort
  Hall, Malta, Rockland, Soda Springs, McCammon.

* WHEN...From Sunday evening through Monday evening.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...Blowing dust is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

IDZ059>061-063>065-281115-
/O.NEW.KPIH.HW.A.0001.210329T0300Z-210330T0200Z/
Franklin/Eastern Oneida Region-Bear River Range-Bear Lake Valley-
Caribou Range-Big Hole Mountains-Teton Valley-
Including the cities of Malad, Preston, Thatcher, 
Emigration Summit, St. Charles, Montpelier, Georgetown, Wayan, 
Swan Valley, Victor, Ashton, Tetonia, and Driggs
201 PM MDT Sat Mar 27 2021

...HIGH WIND WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY
EVENING...

* WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph 
  possible.

* WHERE...Malad, Preston, Montpelier, Wayan, Swan Valley, Ashton,
  Tetonia, Driggs.

* WHEN...From Sunday evening through Monday evening.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...Areas of blowing snow is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
1 follow-up statement
530 
WWUS75 KPIH 280924
NPWPIH

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
324 AM MDT Sun Mar 28 2021

IDZ051>065-282100-
/O.UPG.KPIH.HW.A.0001.210329T0300Z-210330T0200Z/
/O.NEW.KPIH.HW.W.0001.210329T0900Z-210330T0200Z/
Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-Eastern Magic Valley-
Southern Hills/Albion Mountains-Raft River Region-
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-
Bear River Range-Bear Lake Valley-Blackfoot Mountains-
Caribou Range-Big Hole Mountains-Teton Valley-
Including the cities of Shoshone, Richfield, Carey, Mud Lake, 
INL, Craters of the Moon NM, Idaho Falls, Rexburg, St. Anthony, 
Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley,
Rupert, Heyburn, Oakley, Albion, Almo, Malta, Rockland, Holbrook,
Inkom, McCammon, Downey, Lava Hot Springs, Malad, Preston, 
Thatcher, Emigration Summit, St. Charles, Montpelier, Georgetown,
Grace, Soda Springs, Henry, Bone, Wayan, Swan Valley, Victor, 
Ashton, Tetonia, and Driggs
324 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING IN EFFECT FROM 3 AM TO 8 PM MDT MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 58 mph 
  expected. Locally stronger winds possible in wind prone areas.

* WHERE...Shoshone, Richfield, INL, Craters of the Moon, Idaho
  Falls area, Rexburg area, Pocatello area, Blackfoot area, Fort
  Hall, American Falls, Burley area, Marsh Valley, Lava Hot
  Springs, Malad, Preston, Bear Lake area, Teton Valley area.

* WHEN...From 3 AM to 8 PM MDT Monday. The strongest winds will be
  immediately along and behind the front, especially between 5 AM
  to 9 AM MDT Monday.

* IMPACTS...Damaging winds may cause damage to trees and power
  lines which may result in isolated power outages. Travel will be
  difficult, especially for high profile vehicles. Blowing dust
  will be possible, especially along Interstate 86 between
  American Falls and Pocatello, Interstate 15 between Fort Hall
  and Blackfoot, and Interstate 15 between Idaho Falls and
  Roberts.

* ADDITIONAL DETAILS...Heavy snow showers and squalls will be
  possible immediately along and behind the cold front over higher
  terrain areas. The combination of snow, blowing snow and rapidly
  falling temperatures will create very difficult driving
  conditions, especially between 5 AM and 9 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ066>074-282100-
/O.UPG.KPIH.HW.A.0001.210329T0000Z-210330T0200Z/
/O.NEW.KPIH.HW.W.0001.210329T0600Z-210329T1800Z/
Centennial Mountains - Island Park-Beaverhead - Lemhi Highlands-
Lost River Valley-Lost River Range-Challis/Pahsimeroi Valleys-
Frank Church Wilderness-Sawtooth/Stanley Basin-Sun Valley Region-
Big Lost Highlands/Copper Basin-
Including the cities of Island Park, Kilgore, Dubois, Spencer, 
Edie School, Small, Howe, Arco, Mackay, Chilly, Borah Peak, 
Challis, Clayton, Stanley, Ketchum, Sun Valley, Galena, 
and Copper Basin
324 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT
MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 58 mph 
  expected. Locally higher wind gusts possible in wind-prone, 
  exposed areas.

* WHERE...Island Park, Dubois, Spencer, Howe, Arco, Mackay,
  Challis, Stanley, Ketchum, Sun Valley.

* WHEN...From midnight tonight to noon MDT Monday. 

* IMPACTS...Damaging winds may cause damage to trees and power
  lines which may result in isolated power outages. Travel will 
  be difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...Heavy snow showers and squalls are expected
  along and immediately behind the cold front. Strong wind will
  create areas of blowing snow. The combination of snow, wind and
  rapidly falling temperatures will lead to very difficult driving
  conditions. Over the central Idaho mountains, the best chance of
  snow and strongest winds is between roughly Midnight and 3 AM
  Monday morning. Along and near the Montana border region, the
  best chance for snow and the strongest winds is between roughly
  5 AM and 9 AM Monday morning. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ075-282100-
/O.UPG.KPIH.HW.A.0001.210329T0300Z-210330T0200Z/
/O.NEW.KPIH.HW.W.0001.210329T0600Z-210329T1800Z/
Wood River Foothills-
Including the cities of Hailey, Bellevue, and Picabo
324 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT
MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 58 mph 
  expected.

* WHERE...Southern Wood River Valley and Picabo.

* WHEN...From midnight tonight to noon MDT Monday.

* IMPACTS...Damaging winds may cause damage to trees and power
  lines which may result in isolated power outages. Travel will 
  be difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...A brief period of locally heavy snow is
  possible immediately along and behind the cold front, mainly
  between 3 AM and 5 AM MDT. Blowing snow will be possible at
  times, especially in higher elevations. Rapidly falling 
  temperatures may create icy conditions.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello

Nearby

High Wind Watches in Idaho, 2021Every high wind watch in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.