Alert archive / Idaho / Wind Advisories in 2021

Wind Advisory 14, NWS Pocatello, ID

April 18, 202115 counties in Idaho

NWS Pocatello, ID issued this wind advisory at Apr 18, 2021, 2:48 PM MDT for 15 counties in Idaho. It took effect at Apr 19, 2021, 9:00 AM MDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Apr 18, 2021, 2:48 PM MDT (20:48 UTC)
In effect from
Apr 19, 2021, 9:00 AM MDT
Expired
Apr 19, 2021, 9:00 PM MDT
In force
12 hr
Issued by
NWS Pocatello, ID

Counties Bannock County, ID, Bingham County, ID, Blaine County, ID, Bonneville County, ID, Butte County, ID, Caribou County, ID, Cassia 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

The radar

The Pocatello radar (KSFX), 8 km from the middle of the area, began a volume at 20:47 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, 8.8 hours before the alert went out and 262 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 2021-04-18Temperature 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 km15 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 2021-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
2316 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

510 
WWUS75 KPIH 182048
NPWPIH

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
248 PM MDT Sun Apr 18 2021

IDZ052>059-062-191200-
/O.NEW.KPIH.WI.Y.0014.210419T1500Z-210420T0200Z/
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-
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, Burley, Rupert, Heyburn, 
Oakley, Albion, Almo, Malta, Rockland, Holbrook, Inkom, McCammon,
Downey, Lava Hot Springs, Malad, Preston, Thatcher, Grace, 
Soda Springs, Henry, and Bone
248 PM MDT Sun Apr 18 2021

...WIND ADVISORY IN EFFECT FROM 9 AM TO 8 PM MDT MONDAY...

* WHAT...North to northeast winds 20 to 30 mph with gusts up to 45
  mph expected behind a cold front pushing through the area
  Monday. Winds ahead of the front may push wind advisory levels
  out of the SW before the frontal passage especially in the Magic
  Valley and South Hills. 

* WHERE...Arco/Mud Lake Desert, the Snake Plain, eastern Magic
  Valley, South Hills, Raft River Region, Marsh and Arbon
  Highlands, Franklin/Eastern Oneida Region and the Blackfoot 
  Mountains. 

* WHEN...From 9 AM to 8 PM MDT Monday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
4 follow-up statements
670 
WWUS75 KPIH 190848
NPWPIH

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
248 AM MDT Mon Apr 19 2021

IDZ051-200200-
/O.EXA.KPIH.WI.Y.0014.210419T1500Z-210420T0200Z/
Shoshone/Lava Beds-
Including the cities of Shoshone, Richfield, and Carey
248 AM MDT Mon Apr 19 2021

...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 8 PM MDT
THIS EVENING...

* WHAT...Southwest winds 20 to 30 mph with gusts to 45 mph
  becoming north-northeast this afternoon.

* WHERE...Shoshone, Richfield, Carey.

* WHEN...From 9 AM to 8 PM MDT Monday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Blowing dust is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

IDZ055>057-200200-
/O.CON.KPIH.WI.Y.0014.210419T1500Z-210420T0200Z/
Eastern Magic Valley-Southern Hills/Albion Mountains-
Raft River Region-
Including the cities of Burley, Rupert, Heyburn, Oakley, Albion, 
Almo, Malta, Rockland, and Holbrook
248 AM MDT Mon Apr 19 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 8 PM
MDT THIS EVENING...

* WHAT...Southwest winds 20 to 30 mph with gusts to 45 mph
  becoming north-northeast this afternoon.

* WHERE...Burley, Rupert, Heyburn, Oakley, Malta, Rockland,
  Holbrook.

* WHEN...From 9 AM to 8 PM MDT Monday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Blowing dust is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

IDZ052>054-058-059-062-200200-
/O.CON.KPIH.WI.Y.0014.210419T1500Z-210420T0200Z/
Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-Marsh and Arbon Highlands-
Franklin/Eastern Oneida Region-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, Inkom, McCammon, Downey, 
Lava Hot Springs, Malad, Preston, Thatcher, Grace, Soda Springs, 
Henry, and Bone
248 AM MDT Mon Apr 19 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 8 PM
MDT THIS EVENING...

* WHAT...Winds becoming north to northeast 20 to 30 mph with 
  gusts up to 45 mph.

* WHERE...Arco/Mud Lake Desert, the Snake Plain, eastern Magic 
  Valley, South Hills, Raft River Region, Marsh and Arbon 
  Highlands, Franklin/Eastern Oneida Region and the Blackfoot 
  Mountains.

* WHEN...From 9 AM to 8 PM MDT Monday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Blowing dust is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
884 
WWUS75 KPIH 200020
NPWPIH

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
620 PM MDT Mon Apr 19 2021

IDZ054-200200-
/O.CAN.KPIH.WI.Y.0014.000000T0000Z-210420T0200Z/
/O.NEW.KPIH.LW.Y.0007.210420T0020Z-210420T0200Z/
Lower Snake River Plain-
Including the cities of Pocatello, Blackfoot, American Falls, 
Shelley, and Fort Hall
620 PM MDT Mon Apr 19 2021

...LAKE WIND ADVISORY IN EFFECT UNTIL 8 PM MDT THIS EVENING...
...WIND ADVISORY IS CANCELLED...

* WHAT...North winds 20 to 30 mph with gusts up to 35 mph.

* WHERE...American Falls Reservoir.

* WHEN...Until 8 PM MDT this evening.

* IMPACTS...Strong winds and rough waves on area lakes will create
  hazardous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Boaters on area lakes should use extra caution since strong winds
and rough waves can overturn or swamp small craft.

&&

$$

IDZ051-053-055>059-062-200130-
/O.CAN.KPIH.WI.Y.0014.000000T0000Z-210420T0200Z/
Shoshone/Lava Beds-Upper Snake River Plain-Eastern Magic Valley-
Southern Hills/Albion Mountains-Raft River Region-
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-
Blackfoot Mountains-
Including the cities of Shoshone, Richfield, Carey, Idaho Falls, 
Rexburg, St. Anthony, Burley, Rupert, Heyburn, Oakley, Albion, 
Almo, Malta, Rockland, Holbrook, Inkom, McCammon, Downey, 
Lava Hot Springs, Malad, Preston, Thatcher, Grace, Soda Springs, 
Henry, and Bone
620 PM MDT Mon Apr 19 2021

...WIND ADVISORY IS CANCELLED...

Wind speeds have diminished below advisory criteria and thus the
Wind Advisory has been cancelled for the remainder of this evening.

$$

IDZ052-200200-
/O.CON.KPIH.WI.Y.0014.000000T0000Z-210420T0200Z/
Arco/Mud Lake Desert-
Including the cities of Mud Lake, INL, and Craters of the Moon NM
620 PM MDT Mon Apr 19 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING...

* WHAT...North winds 30 to 35 mph with gusts up to 40 mph.

* WHERE...Arco and Mud Lake Desert, including the INL.

* WHEN...Until 8 PM MDT this evening.

* IMPACTS...Gusty cross winds will create difficult driving
  conditions, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
636 
WWUS75 KPIH 200152
NPWPIH

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
752 PM MDT Mon Apr 19 2021

IDZ052-200300-
/O.EXT.KPIH.WI.Y.0014.000000T0000Z-210420T0300Z/
Arco/Mud Lake Desert-
Including the cities of Mud Lake, INL, and Craters of the Moon NM
752 PM MDT Mon Apr 19 2021

...WIND ADVISORY NOW IN EFFECT UNTIL 9 PM MDT THIS EVENING...

* WHAT...Northeast winds 30 to 35 mph with gusts up to 45 mph.

* WHERE...Arco and Mud Lake Desert, including the INL.

* WHEN...Until 9 PM MDT this evening.

* IMPACTS...Gusty cross winds will create difficult driving
  conditions, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

IDZ054-200300-
/O.EXT.KPIH.LW.Y.0007.000000T0000Z-210420T0300Z/
Lower Snake River Plain-
Including the cities of Pocatello, Blackfoot, American Falls, 
Shelley, and Fort Hall
752 PM MDT Mon Apr 19 2021

...LAKE WIND ADVISORY NOW IN EFFECT UNTIL 9 PM MDT THIS EVENING...

* WHAT...Northeast winds 20 to 30 mph.

* WHERE...American Falls Reservoir.

* WHEN...Until 9 PM MDT this evening.

* IMPACTS...Strong winds and rough waves on area lakes will 
  create hazardous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Boaters on area lakes should use extra caution since strong winds
and rough waves can overturn or swamp small craft.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
418 
WWUS75 KPIH 200259
NPWPIH

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
859 PM MDT Mon Apr 19 2021

IDZ052-200400-
/O.EXP.KPIH.WI.Y.0014.000000T0000Z-210420T0300Z/
Arco/Mud Lake Desert-
Including the cities of Mud Lake, INL, and Craters of the Moon NM
859 PM MDT Mon Apr 19 2021

...WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING...

Wind speeds have finally begun to slip below Advisory levels and
thus the Wind Advisory will be allowed to expire at 9 PM MDT this
evening.

$$

IDZ054-200400-
/O.EXP.KPIH.LW.Y.0007.000000T0000Z-210420T0300Z/
Lower Snake River Plain-
Including the cities of Pocatello, Blackfoot, American Falls, 
Shelley, and Fort Hall
859 PM MDT Mon Apr 19 2021

...LAKE WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING...

The Lake Wind Advisory will be allowed to expire as winds speeds
continue to gradually diminish this evening. 

$$

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

Nearby

Wind Advisories in Idaho, 2021Every wind advisory 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.