Alert archive / Idaho / Winter Storm Warnings in 2020

Winter Storm Warning 3, NWS Pocatello, ID

February 1, 202010 counties in Idaho

NWS Pocatello, ID issued this winter storm warning at Feb 1, 2020, 8:27 PM MST for 10 counties in Idaho. It took effect at Feb 2, 2020, 3:00 PM MST. It was in force for 27 hr. 36 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 1, 2020, 8:27 PM MST (03:27 UTC)
In effect from
Feb 2, 2020, 3:00 PM MST
Expired
Feb 3, 2020, 5:36 PM MST
In force
27 hr
Issued by
NWS Pocatello, ID

Counties Bannock County, ID, Bear Lake County, ID, Bingham County, ID, Bonneville County, ID, Caribou County, ID, Franklin County, ID, Madison County, ID, Oneida County, ID, Power County, ID, Teton County, ID

The radar

The Pocatello radar (KSFX), 67 km from the middle of the area, began a volume at 03:30 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.

What was reported inside it

TimeReportWhereRemark
Feb 2, 8:30 PM MSTSNOW 1.5Hibbard, IDVIA NWS POCATELLO FACEBOOK PAGE. STILL SNOWING.
Feb 2, 10:14 PM MSTSNOW 3Aberdeen, IDESTIMATED STORM TOTAL SNOWFALL IN ABERDEEN SO FAR. REPORTED VIA NWS POCATELLO FACEBOOK PAGE.
Feb 3, 12:00 AM MSTSNOW 3.41 Sse Pocatello Airport, IDOFFICIAL MEASUREMENT AS OF MIDNIGHT FOR FEBRUARY 2ND.
Feb 3, 2:30 AM MSTSNOW 31 Sse Pocatello, IDSTORM TOTAL SO FAR NEAR THE INTERSECTION OF W CARSON ST AND N GARFIELD AVE. REPORTED VIA NWS POCATELLO FACEBOOK PAGE. SNOW CONTINUES.
Feb 3, 5:28 AM MSTSNOW 5.52 Ese Pocatello, IDSTORM TOTAL SNOW SO FAR AT THE ISU CAMPUS. SNOW CONTINUES.
Feb 3, 6:00 AM MSTSNOW 11 S Moreland, IDSTORM TOTAL.
Feb 3, 6:00 AM MSTSNOW 6.1Pocatello Airport, IDSTORM TOTAL SO FAR AT THE NWS POCATELLO OFFICE.
Feb 3, 6:11 AM MSTSNOW 5.53 Ne Pocatello, IDSTORM TOTAL SO FAR. SNOW CONTINUES TO FALL.
Feb 3, 6:17 AM MSTSNOW 2.51 Ne Fort Hall, IDSHOSHONE-BANNOCK TRANSPORTATION ESTIMATES A STORM TOTAL OF 2-3 INCHES SO FAR IN FORT HALL. ROADS VERY SLICK.
Feb 3, 6:17 AM MSTSNOW 5.57 Wnw Crystal, IDSHOSHONE-BANNOCK TRANSPORTATION ESTIMATES A STORM TOTAL OF 5-6 INCHES SO FAR IN THE BANNOCK CREEK AREA. ROADS VERY SLICK.
Feb 3, 7:00 AM MSTSNOW 1.53 Nne Driggs, IDCOCORAHS STATION ID-TT-1. LAST 24 HOURS AND STORM TOTAL SO FAR.
Feb 3, 7:00 AM MSTSNOW 24 E St. Charles, IDCO-OP OBSERVER STATION LFTI1. LAST 24 HOURS AND STORM TOTAL SO FAR.
Feb 3, 7:00 AM MSTSNOW 2.44 Ene Ucon, IDCOCORAHS STATION ID-BV-6. STORM TOTAL SO FAR.
Feb 3, 7:00 AM MSTSNOW 61 Se American Falls, IDSTORM TOTAL SO FAR. SNOW CONTINUES TO FALL WITH BLOWING AND DRIFTING ALSO REPORTED.
Feb 3, 7:00 AM MSTSNOW 73 E Chubbuck, IDCOCORAHS STATION ID-BK-23. LAST 24 HOURS AND STORM TOTAL SO FAR.
Feb 3, 7:09 AM MSTSNOW 6.53 E Pocatello, IDSTORM TOTAL SO FAR. 1 FOOT DRIFTS. SNOW CONTINUES TO FALL. REPORTED ROADS ARE HORRIBLE INCLUDING I-15 AND I-86 IN THE POCATELLO AREA.
Feb 3, 7:20 AM MSTSNOW 61 Wnw Chubbuck, IDSTORM TOTAL SO FAR. SNOW CONTINUES.
Feb 3, 7:45 AM MSTSNOW 6.53 Ne Pocatello, IDSTORM TOTAL SO FAR.
Feb 3, 7:50 AM MSTSNOW 92 Se Chubbuck, IDCOCORAHS STATION ID-BK-16. LAST 24 HOURS AND STORM TOTAL SO FAR.
Feb 3, 7:52 AM MSTSNOW 72 E Chubbuck, IDSTORM TOTAL SO FAR. SNOW STILL FALLING.
Feb 3, 7:56 AM MSTSNOW 6.51 Nw Chubbuck, IDSTORM TOTAL SO FAR.
Feb 3, 8:00 AM MSTSNOW 2Bern, IDCO-OP OBSERVER STATION BERI1. LAST 24 HOURS AND STORM TOTAL SO FAR.
Feb 3, 8:00 AM MSTSNOW 32 E Niter, IDSPOTTER HAD TO ESTIMATE THE SNOW DUE TO SIGNIFICANT BLOWING AND DRIFTING. SNOW FELL BETWEEN 8 PM AND 8 AM. STORM TOTAL SO FAR.
Feb 3, 8:00 AM MSTSNOW 34 Ese American Falls, IDCOCORAHS STATION ID-PW-4. LAST 24 HOURS AND STORM TOTAL SO FAR.
Feb 3, 8:00 AM MSTSNOW 4Inkom, IDCO-OP OBSERVER STATION IKMI1. LAST 24 HOURS AND STORM TOTAL SO FAR.
Feb 3, 8:00 AM MSTSNOW 72 Ese Chubbuck, IDSTORM TOTAL SO FAR IN THE HIGHLAND AREA. MEASUREMENT AND PHOTO SUBMITTED VIA NWS POCATELLO FACEBOOK PAGE.
Feb 3, 8:03 AM MSTSNOW 5.11 E Pocatello, IDMEASURED AT KPVI-TV. STILL SNOWING.
Feb 3, 8:06 AM MSTSNOW 73 E Chubbuck, IDSTORM TOTAL SO FAR.
Feb 3, 8:13 AM MSTSNOW 92 E Chubbuck, IDSEVERAL MEASUREMENTS BETWEEN 8 AND 10 INCHES OFF OF GARY ST. DRIFTS TO 15 INCHES. STORM TOTAL SO FAR.
Feb 3, 8:27 AM MSTSNOW 92 Se Chubbuck, IDSTORM TOTAL SO FAR.
Feb 3, 8:30 AM MSTSNOW 1Blackfoot, IDCO-OP OBSERVER STATION BKFI1. LAST 24 HOURS AND STORM TOTAL SO FAR.
Feb 3, 8:39 AM MSTSNOW 51 Sse St. Charles, IDSIGNIFICANT BLOWING AND DRIFTING NOTED. STORM TOTAL SO FAR.
Feb 3, 10:04 AM MSTSNOW 83 Ne Pocatello, IDUPDATED STORM TOTAL.
Feb 3, 12:00 PM MSTSNOW 7.11 Sse Pocatello Airport, IDFINAL STORM TOTAL AT NWS POCATELLO.
Feb 3, 3:00 PM MSTSNOW 22 Ne Idaho Falls, IDCO-OP OBSERVER STATION IFLI1. KIFI-TV STATION.
Feb 3, 5:00 PM MSTSNOW 5.51 E Pocatello, IDCO-OP OBSERVER STATION PLLI1. LAST 24 HOURS AND STORM TOTAL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 00:00Z, 3.5 hours before the alert went out and 235 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 00:00Z on 2020-02-02Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salt Lake City I, UT at 00:00Z on 2020-02-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 square meters per square second.193958Sfc1 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
2126 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

688 
WWUS45 KPIH 020327
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
827 PM MST Sat Feb 1 2020

...WINTER STORM ON TRACK TO IMPACT THE REGION SUNDAY INTO 
MONDAY...

IDZ058>063-021200-
/O.UPG.KPIH.WW.Y.0006.200202T2100Z-200204T0300Z/
/O.NEW.KPIH.WS.W.0003.200202T2100Z-200204T0300Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-
Bear River Range-Bear Lake Valley-Blackfoot Mountains-
Caribou Range-
Including the cities of Inkom, McCammon, Downey, 
Lava Hot Springs, Malad, Preston, Thatcher, Emigration Summit, 
St. Charles, Montpelier, Georgetown, Grace, Soda Springs, Henry, 
Bone, Wayan, and Swan Valley
827 PM MST Sat Feb 1 2020

...WINTER STORM WARNING IN EFFECT FROM 2 PM SUNDAY TO 8 PM MST
MONDAY...

* WHAT...Snow, heavy at times in the mountains Sunday night and
  Monday. A slight chance of freezing rain in some of the lower
  valleys Sunday afternoon. Storm total snow accumulations of 8 to
  15 inches above 6000 feet and 4 to 8 inches possible in the
  mountain valleys. Winds gusting to 30 mph at times producing
  areas of blowing and drifting snow.

* WHERE...Southeast mountains from Palisades south to the Utah
  border.

* WHEN...From 2 PM Sunday to 8 PM MST Monday.

* IMPACTS...Travel could be difficult to hazardous at times. Areas
  of blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel in this area is not advised Sunday afternoon through
Monday. If you must travel, keep an extra flashlight, food, and 
water in your vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ055-021200-
/O.EXA.KPIH.WW.Y.0006.200202T2100Z-200204T0300Z/
Eastern Magic Valley-
Including the cities of Burley, Rupert, Heyburn, and Oakley
827 PM MST Sat Feb 1 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM SUNDAY TO 8 PM MST
MONDAY...

* WHAT...A mix of rain, rain and snow, and local areas of freezing
  rain are possible Sunday afternoon and evening. Snow, moderate
  at times will move into the Eastern Magic Valley late in the
  evening and continue through Monday afternoon resulting in 2 to
  6 inches of snowfall across the region.

* WHERE...Eastern Magic Valley including Burley, Rupert, and
  Minidoka.

* WHEN...From 2 PM Sunday to 8 PM MST Monday.

* IMPACTS...Travel could be difficult at times. Areas of blowing
  snow could significantly reduce visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Consider giving
yourself extra time for your morning commute Monday. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ053-064>066-021200-
/O.CON.KPIH.WW.Y.0006.200202T1500Z-200204T0300Z/
Upper Snake River Plain-Big Hole Mountains-Teton Valley-
Centennial Mountains - Island Park-
Including the cities of Idaho Falls, Rexburg, St. Anthony, 
Victor, Ashton, Tetonia, Driggs, Island Park, and Kilgore
827 PM MST Sat Feb 1 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 AM SUNDAY TO
8 PM MST MONDAY...

* WHAT...Snow, moderate to heavy at times will result in 5 to 9 
  inches of accumulation above 6500 feet and 1 to 5 inches in the 
  valleys below 6500 feet. Strong north winds gusting to 35 MPH at
  times may produce areas of blowing and drifting snow.

* WHERE...The Upper Snake Plain, Upper Snake Highlands, the Teton
  Valley, and the Big Hole Mountains, including Idaho Falls,
  Rexburg, Ashton, Driggs, Pine Creek Pass, and Island Park.

* WHEN...From 8 AM Sunday to 8 PM MST Monday.

* IMPACTS...Travel could be difficult to hazardous at times. Areas
  of blowing snow could significantly reduce visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Consider giving
yourself extra time for your morning commute Monday.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ054-056-057-021200-
/O.CON.KPIH.WW.Y.0006.200202T2100Z-200204T0300Z/
Lower Snake River Plain-Southern Hills/Albion Mountains-
Raft River Region-
Including the cities of Pocatello, Blackfoot, American Falls, 
Shelley, Fort Hall, Albion, Almo, Malta, Rockland, and Holbrook
827 PM MST Sat Feb 1 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM SUNDAY TO
8 PM MST MONDAY...

* WHAT...A mix of rain and melting snow Sunday afternoon may
  result in icing conditions on roadways as the temperatures
  plummet through the evening. Snow, moderate to locally heavy at
  times will result in widespread accumulations of 2 to 4 inches
  with some of the bench areas above 5000 feet receiving as much
  as 5 to 8 inches. Gusty north winds to 30 MPH may produce areas
  of blowing and drifting snow.

* WHERE...Southern Hills, Albion Mountains, Raft River Region, and
  the Lower Snake River Plain including the cities of Albion,
  Almo, Malta, Rockland, Holbrook, American Falls, Pocatello, and
  Blackfoot.

* WHEN...From 2 PM Sunday to 8 PM MST Monday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing
  snow could significantly reduce visibility at times. The
  hazardous conditions could impact the Sunday evening or Monday
  morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Consider giving
yourself extra time to reach your destination.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
5 follow-up statements
219 
WWUS45 KPIH 021057
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
357 AM MST Sun Feb 2 2020

IDZ064-022200-
/O.UPG.KPIH.WW.Y.0006.200202T1500Z-200204T0300Z/
/O.EXB.KPIH.WS.W.0003.200202T2200Z-200204T0300Z/
Big Hole Mountains-
Including the city of Victor
357 AM MST Sun Feb 2 2020

...WINTER STORM WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO
8 PM MONDAY EVENING...

* WHAT...Total snow accumulations of 5 to 10 inches, with
  localized higher amounts. Winds gusting as high as 35 MPH.

* WHERE...The Big Hole Mountains, including but not limited to Victor
  and Pine Creek Pass.

* WHEN...From 3 PM this afternoon to 8 PM Monday evening.

* IMPACTS...Travel could be very difficult due to a combination 
  of snow, icy roads, and blowing and drifting, especially from 
  Sunday evening through Monday evening. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the morning and evening commutes Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ058>063-022200-
/O.EXT.KPIH.WS.W.0003.200202T2200Z-200204T0300Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-
Bear River Range-Bear Lake Valley-Blackfoot Mountains-
Caribou Range-
Including the cities of Inkom, McCammon, Downey, 
Lava Hot Springs, Malad, Preston, Thatcher, Emigration Summit, 
St. Charles, Montpelier, Georgetown, Grace, Soda Springs, Henry, 
Bone, Wayan, and Swan Valley
357 AM MST Sun Feb 2 2020

...WINTER STORM WARNING NOW IN EFFECT FROM 3 PM THIS AFTERNOON TO
8 PM MONDAY EVENING...

* WHAT...A possible flash freeze on roadways Sunday evening, along
  with total snow accumulations of 4 to 9 inches across the south
  central highlands, Bear Lake, and Caribou Highlands, and 7 to 14
  inches in the Bear River Range and east of Georgetown Summit, 
  with localized higher amounts. Winds could gust as high as 35 
  MPH.

* WHERE...The south central highlands, Bear Lake region, and
  Caribou Highlands, including but not limited to Swan Valley,
  Inkom, McCammon, Malad, Preston, Lava Hot Springs, Fish Creek 
  Summit, Soda Springs, Georgetown Summit, Montpelier, Geneva 
  Summit, Border Summit, and Emigration Summit.

* WHEN...From 3 PM this afternoon to 8 PM Monday evening.

* IMPACTS...Travel could be very difficult due to a combination 
  of snow, icy roads, and blowing and drifting, especially from 
  Sunday evening through Monday evening. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the morning and evening commutes Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ052-067-022200-
/O.EXB.KPIH.WW.Y.0006.200202T1700Z-200204T0300Z/
Arco/Mud Lake Desert-Beaverhead - Lemhi Highlands-
Including the cities of Mud Lake, INL, Craters of the Moon NM, 
Dubois, Spencer, Edie School, and Small
357 AM MST Sun Feb 2 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO
8 PM MONDAY EVENING...

* WHAT...A possible flash freeze on roadways Sunday afternoon,
  along with total snow accumulations of 2 to 5 inches, with
  localized higher amounts. Winds could gust as high as 40 MPH.

* WHERE...The Arco Desert and Clark County, including but not
  limited to Tom Cat Summit, Craters of the Moon, Telegraph Hill,
  Mud Lake, Dubois, and Monida Pass.

* WHEN...From 10 AM this morning to 8 PM Monday evening.

* IMPACTS...Travel could be difficult due to a combination of 
  snow, icy roads, and blowing and drifting, especially from 
  Sunday evening through Monday evening. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the morning and evening commutes Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ053-065-066-022200-
/O.EXT.KPIH.WW.Y.0006.200202T1700Z-200204T0300Z/
Upper Snake River Plain-Teton Valley-Centennial Mountains -
Island Park-
Including the cities of Idaho Falls, Rexburg, St. Anthony, 
Ashton, Tetonia, Driggs, Island Park, and Kilgore
357 AM MST Sun Feb 2 2020

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING
TO 8 PM MONDAY EVENING...

* WHAT...A possible flash freeze on roadways Sunday afternoon,
  along with total snow accumulations of 2 to 5 inches across the
  Upper Snake Plain, 3 to 7 inches in the Teton Valley, and 6 to
  12 inches north of Ashton, with localized higher amounts. Winds
  could gust as high as 40 MPH.

* WHERE...The Upper Snake Plain, Upper Snake Highlands, and Teton
  Valley area, including but not limited to Idaho Falls, Roberts,
  Rigby, Rexburg, Ashton, Driggs, Island Park, Raynolds Pass, and
  Targhee Pass.

* WHEN...From 10 AM this morning to 8 PM Monday evening.

* IMPACTS...Travel could be difficult due to a combination of 
  snow, icy roads, and blowing and drifting, especially from 
  Sunday evening through Monday evening. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the morning and evening commutes Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ054>057-022200-
/O.EXT.KPIH.WW.Y.0006.200202T2200Z-200204T0300Z/
Lower Snake River Plain-Eastern Magic Valley-
Southern Hills/Albion Mountains-Raft River Region-
Including the cities of Pocatello, Blackfoot, American Falls, 
Shelley, Fort Hall, Burley, Rupert, Heyburn, Oakley, Albion, 
Almo, Malta, Rockland, and Holbrook
357 AM MST Sun Feb 2 2020

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON
TO 8 PM MONDAY EVENING...

* WHAT...A possible flash freeze on roadways Sunday afternoon or
  evening, along with total snow accumulations of 2 to 5 inches,
  except 6 to 12 inches above 5,500 feet, with localized higher 
  amounts. Winds could gust as high as 40 MPH.

* WHERE...The eastern Magic Valley, Raft River region, and lower
  Snake Plain, including but not limited to Burley, Oakley,
  Albion, Malta, Sweetzer Summit, Holbrook, Rockland, American
  Falls, Aberdeen, Pocatello, Chubbuck, Fort Hall, and Blackfoot.

* WHEN...From 3 PM this afternoon to 8 PM Monday evening.

* IMPACTS...Travel could be difficult due to a combination of 
  snow, icy roads, and blowing and drifting, especially from 
  Sunday evening through Monday evening. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the morning and evening commutes Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

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

KSMITH
734 
WWUS45 KPIH 022131
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
231 PM MST Sun Feb 2 2020

...WINTER STORM TO IMPACT THE REGION INTO THE DAY MONDAY...

IDZ058>064-031200-
/O.CON.KPIH.WS.W.0003.200202T2200Z-200204T0300Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-
Bear River Range-Bear Lake Valley-Blackfoot Mountains-
Caribou Range-Big Hole Mountains-
Including the cities of Inkom, McCammon, Downey, 
Lava Hot Springs, Malad, Preston, Thatcher, Emigration Summit, 
St. Charles, Montpelier, Georgetown, Grace, Soda Springs, Henry, 
Bone, Wayan, Swan Valley, and Victor
231 PM MST Sun Feb 2 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST MONDAY...

* WHAT...A possible flash freeze on roadways Sunday evening, 
  along with total snow accumulations of 4 to 9 inches across 
  the south central highlands, Bear Lake, and Caribou Highlands, 
  and 7 to 14 inches in the Bear River Range and east of 
  Georgetown Summit, with localized higher amounts. Winds could 
  gust as high as 35 MPH.

* WHERE...The south central highlands, Bear Lake region, and 
  Caribou Highlands, including but not limited to Swan Valley, 
  Inkom, McCammon, Malad, Preston, Lava Hot Springs, Fish Creek 
  Summit, Soda Springs, Georgetown Summit, Montpelier, Geneva 
  Summit, Border Summit, and Emigration Summit.

* WHEN...From 3 PM this afternoon to 8 PM Monday evening.

* IMPACTS...Travel could be very difficult due to a combination 
  of snow, icy roads, and blowing and drifting, especially from 
  Sunday evening through Monday evening. Areas of blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commutes 
  Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ052-053-065>067-031200-
/O.CON.KPIH.WW.Y.0006.000000T0000Z-200204T0300Z/
Arco/Mud Lake Desert-Upper Snake River Plain-Teton Valley-
Centennial Mountains - Island Park-Beaverhead - Lemhi Highlands-
Including the cities of Mud Lake, INL, Craters of the Moon NM, 
Idaho Falls, Rexburg, St. Anthony, Ashton, Tetonia, Driggs, 
Island Park, Kilgore, Dubois, Spencer, Edie School, and Small
231 PM MST Sun Feb 2 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

* WHAT...A possible flash freeze on roadways Sunday afternoon, 
  along with total snow accumulations of 2 to 5 inches across 
  the Upper Snake Plain, 3 to 7 inches in the Teton Valley, and 
  6 to 12 inches north of Ashton, with localized higher amounts. 
  Winds could gust as high as 40 MPH.

* WHERE...The Upper Snake Plain, Upper Snake Highlands, and 
  Teton Valley area, including but not limited to Idaho Falls, 
  Roberts, Rigby, Rexburg, Ashton, Driggs, Island Park, Raynolds 
  Pass, and Targhee Pass.

* WHEN...From 10 AM this morning to 8 PM Monday evening.

* IMPACTS...Travel could be difficult due to a combination of 
  snow, icy roads, and blowing and drifting, especially from 
  Sunday evening through Monday evening. Areas of blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commutes 
  Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ054>057-031200-
/O.CON.KPIH.WW.Y.0006.200202T2200Z-200204T0300Z/
Lower Snake River Plain-Eastern Magic Valley-
Southern Hills/Albion Mountains-Raft River Region-
Including the cities of Pocatello, Blackfoot, American Falls, 
Shelley, Fort Hall, Burley, Rupert, Heyburn, Oakley, Albion, 
Almo, Malta, Rockland, and Holbrook
231 PM MST Sun Feb 2 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

* WHAT...A possible flash freeze on roadways Sunday afternoon or 
  evening, along with total snow accumulations of 2 to 5 inches, 
  except 6 to 12 inches above 5,500 feet, with localized higher 
  amounts. Winds could gust as high as 40 MPH.

* WHERE...The eastern Magic Valley, Raft River region, and lower 
  Snake Plain, including but not limited to Burley, Oakley, 
  Albion, Malta, Sweetzer Summit, Holbrook, Rockland, American 
  Falls, Aberdeen, Pocatello, Chubbuck, Fort Hall, and Blackfoot.

* WHEN...From 3 PM this afternoon to 8 PM Monday evening.

* IMPACTS...Travel could be difficult due to a combination of 
  snow, icy roads, and blowing and drifting, especially from 
  Sunday evening through Monday evening. Areas of blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commutes 
  Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
971 
WWUS45 KPIH 031028
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
328 AM MST Mon Feb 3 2020

IDZ058>064-032200-
/O.CON.KPIH.WS.W.0003.000000T0000Z-200204T0300Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-
Bear River Range-Bear Lake Valley-Blackfoot Mountains-
Caribou Range-Big Hole Mountains-
Including the cities of Inkom, McCammon, Downey, 
Lava Hot Springs, Malad, Preston, Thatcher, Emigration Summit, 
St. Charles, Montpelier, Georgetown, Grace, Soda Springs, Henry, 
Bone, Wayan, Swan Valley, and Victor
328 AM MST Mon Feb 3 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Additional snow accumulations of 2 to 5 inches today 
  with localized higher amounts, as well as areas of blowing and 
  drifting snow. Winds may gust as high 35 MPH with localized 
  whiteout conditions.

* WHERE...The south central highlands, Bear Lake region, Caribou
  Highlands, and Big Hole Mountains, including but not limited to
  Victor, Pine Creek Pass, Swan Valley, Inkom, McCammon, Malad, 
  Preston, Lava Hot Springs, Fish Creek Summit, Soda Springs, 
  Georgetown Summit, Montpelier, Geneva Summit, Border Summit, and
  Emigration Summit.

* WHEN...Through 8 PM this evening.

* IMPACTS...Travel will remain very difficult due to a combination
  of snow and blowing and drifting. Areas of blowing snow could
  significantly reduce visibility. The hazardous conditions will  
  impact the morning and evening commutes today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, use extreme caution. Keep an extra 
flashlight, food, water, and blanket in your vehicle in case of 
an emergency. Slow down and allow plenty of extra time to reach 
your destination. For the latest information on road closures and 
road conditions, call 5 1 1 or visit 511.idaho.gov.

&&

$$

IDZ052>057-065>067-032200-
/O.CON.KPIH.WW.Y.0006.000000T0000Z-200204T0300Z/
Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-Eastern Magic Valley-
Southern Hills/Albion Mountains-Raft River Region-Teton Valley-
Centennial Mountains - Island Park-Beaverhead - Lemhi Highlands-
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, Ashton, Tetonia,
Driggs, Island Park, Kilgore, Dubois, Spencer, Edie School, 
and Small
328 AM MST Mon Feb 3 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Additional snow accumulations of 1 to 4 inches today 
  with localized higher amounts, as well as areas of blowing and 
  drifting snow. Winds may gust as high 45 MPH with localized 
  whiteout conditions.

* WHERE...The eastern Magic Valley, Raft River region, Snake
  Plain, Arco Desert, Upper Snake Highlands, and Teton Valley,
  including but not limited to Burley, Oakley, Albion, Sweetzer
  Summit, Holbrook, Rockland, American Falls, Aberdeen, 
  Pocatello, Fort Hall, Blackfoot, Tom Cat Summit, Craters of the 
  Moon, Telegraph Hill, Mud Lake, Dubois, Monida Pass, Idaho 
  Falls, Roberts, Rigby, Rexburg, Ashton, Island Park, Raynolds 
  Pass, Targhee Pass, and Driggs.

* WHEN...Through 8 PM this evening.

* IMPACTS...Travel will remain difficult in some areas due to a
  combination of snow and blowing and drifting. Areas of blowing
  snow could significantly reduce visibility. The hazardous
  conditions will impact the morning and evening commutes today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution if traveling or commuting. Allow extra 
time to reach your destination. For the latest information on road
closures and road conditions, call 5 1 1 or visit 511.idaho.gov.

&&

$$

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

KSMITH
610 
WWUS45 KPIH 032131
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
231 PM MST Mon Feb 3 2020

...The biggest impact continues to be the wind. We have 
cold, northerly winds dropping down from the Montana divide. The 
northerly winds have now made it through Pocatello and are 
expected to continue to move southward this afternoon through the 
evening. These northerly winds are gusting to around 30 mph, 
stronger around 40 mph, across INL. These winds most likely have 
peaked now and should gradually decrease this afternoon into the 
early evening. There is still blowing and drifting occurring 
creating hazardous conditions, especially for Highway 20 from 
Idaho Falls to the INL complex as well as for Highway 33 from 
Teton to Tetonia. These highways will continue to receive very 
impactful blowing and drifting before the winds taper off by late 
afternoon into early evening. Also, I-86 is seeing some blowing 
and drifting due to a direct cross wind though gusts are slightly 
less, around 30 mph currently. Because of the blowing and drifting
snow, have left the winter advisories and warnings out as there 
are other localized areas having impacts as well. We may be able 
to let the advisories and warnings go by late this afternoon, if 
not early evening. Driving is still hazardous with these windy 
conditions creating the blowing and drifting of snow...

IDZ058>064-040300-
/O.CON.KPIH.WS.W.0003.000000T0000Z-200204T0300Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-
Bear River Range-Bear Lake Valley-Blackfoot Mountains-
Caribou Range-Big Hole Mountains-
Including the cities of Inkom, McCammon, Downey, 
Lava Hot Springs, Malad, Preston, Thatcher, Emigration Summit, 
St. Charles, Montpelier, Georgetown, Grace, Soda Springs, Henry, 
Bone, Wayan, Swan Valley, and Victor
231 PM MST Mon Feb 3 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Light snow. Additional snow accumulations of 1 to 4
  inches. Heavier amounts will be for mountains, especially the
  Wasatch mountains. Winds gusting as high as 35 mph will be the
  biggest impacts creating blowing and drifting snow. 

* WHERE...The south central highlands, Bear Lake region, Caribou
  Highlands, and Big Hole Mountains, including but not limited to
  Victor, Pine Creek Pass, Swan Valley, Inkom, McCammon, Malad, 
  Preston, Lava Hot Springs, Fish Creek Summit, Soda Springs, 
  Georgetown Summit, Montpelier, Geneva Summit, Border Summit, and
  Emigration Summit.

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

* IMPACTS...Plan on slippery road conditions mainly due to blowing
  drifting snow. The hazardous conditions could impact the 
  evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ052>057-065>067-040300-
/O.CON.KPIH.WW.Y.0006.000000T0000Z-200204T0300Z/
Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-Eastern Magic Valley-
Southern Hills/Albion Mountains-Raft River Region-Teton Valley-
Centennial Mountains - Island Park-Beaverhead - Lemhi Highlands-
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, Ashton, Tetonia,
Driggs, Island Park, Kilgore, Dubois, Spencer, Edie School, 
and Small
231 PM MST Mon Feb 3 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Very light Snow. Additional snow accumulations less than
  one inch. Winds gusting as high as 35 mph will be the biggest
  impact creating blowing and drifting of snow. 

* WHERE...The eastern Magic Valley, Raft River region, Snake
  Plain, Arco Desert, Upper Snake Highlands, and Teton Valley,
  including but not limited to Burley, Oakley, Albion, Sweetzer
  Summit, Holbrook, Rockland, American Falls, Aberdeen, 
  Pocatello, Fort Hall, Blackfoot, Tom Cat Summit, Craters of the 
  Moon, Telegraph Hill, Mud Lake, Dubois, Monida Pass, Idaho 
  Falls, Roberts, Rigby, Rexburg, Ashton, Island Park, Raynolds 
  Pass, Targhee Pass, and Driggs.

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

* IMPACTS...Plan on slippery road conditions mainly due to blowing
  and drifting of snow. The hazardous conditions could impact the
  evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
794 
WWUS45 KPIH 040036
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
536 PM MST Mon Feb 3 2020


IDZ058>064-040145-
/O.CAN.KPIH.WS.W.0003.000000T0000Z-200204T0300Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-
Bear River Range-Bear Lake Valley-Blackfoot Mountains-
Caribou Range-Big Hole Mountains-
Including the cities of Inkom, McCammon, Downey, 
Lava Hot Springs, Malad, Preston, Thatcher, Emigration Summit, 
St. Charles, Montpelier, Georgetown, Grace, Soda Springs, Henry, 
Bone, Wayan, Swan Valley, and Victor
536 PM MST Mon Feb 3 2020

...WINTER STORM WARNING IS CANCELLED...

The threat for widespread additional heavy snow and travel impacts
due to blowing and drifting snow has ended. Therefore the Winter
Storm Warning has been cancelled. A few locations may see an
additional 1 to 2 inches of accumulation overnight, generally
across the Bear River Range. Localized gusts may continue to drift
snow across roadways. Drivers are urged to remain cautious while
traveling through the region tonight.

$$

IDZ052>057-065>067-040145-
/O.CAN.KPIH.WW.Y.0006.000000T0000Z-200204T0300Z/
Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-Eastern Magic Valley-
Southern Hills/Albion Mountains-Raft River Region-Teton Valley-
Centennial Mountains - Island Park-Beaverhead - Lemhi Highlands-
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, Ashton, Tetonia,
Driggs, Island Park, Kilgore, Dubois, Spencer, Edie School, 
and Small
536 PM MST Mon Feb 3 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

The threat for travel impacts due to blowing and drifting snow is
rapidly decreasing as winds continue to decrease this evening.
Drivers are urged to remain cautious for drifting snow due to
localized higher gusts, and also watch for refreezing of treated
roads as temperatures drop overnight. 

$$

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

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pocatello, ID wrote its last area forecast discussion before this winter storm warning went out at Feb 1, 7:55 PM MST, 32 minutes earlier.

Area forecast discussion, Feb 1, 7:55 PM MST, 32 minutes before
Area Forecast Discussion
National Weather Service Pocatello ID
755 PM MST Sat Feb 1 2020

...WINTER STORM ON TRACK TO IMPACT THE REGION SUNDAY INTO MONDAY...

DISCUSSION...Incoming models suggest that we will see widespread 10-
15 inch snowfall totals across the SE mountains Sunday night into
Monday along with blowing and drifting snow. In addition, a
convergence band is expected to sink south into the ERN Magic Valley
Sunday night into Monday morning possibly producing as much as 2 to
6 inches of accumulation in that region. Thus we will be upgrading
the SE mountains to warnings and adding the ERN Magic Valley to the
Winter Weather Advisory on the update this evening. This looks to be
a fairly impactful system starting out with some rain and rain-snow
mix in the valleys Sunday afternoon and then quickly rolling over to
snow Sunday night with winds ramping up into Monday. Check out the
previous discussion below. Huston

Temperatures this afternoon have warmed quite a bit in spots as
Pocatello and Burley have both surpassed 50 this afternoon while up
the Snake Plain towards Idaho Falls temps still hovering around
freezing. These warmer temps will be short- lived as a winter storm
will impact the region beginning tomorrow and continue into the day
Monday. Winter weather advisories have been posted for all the zones
where the winter storm watch was in place as well as a few
additional zones where forecast snow totals have trended upwards a
bit. Still not out of the question that a few areas will come close
to winter storm warning criteria especially if some favorable
upslope enhancement occurs. There haven't been major changes to the
expected snowfall totals across the area. Through Monday evening
totals range from 2-5 inches across the Central Mntns (up to 8
inches at peaks/ridges above pass level), 1-3 inches in the Wood
River Valley/Lincoln County, 3-6 inches from Burley/Oakley up the
Snake Plain through Pocatello/Idaho Falls, 3-8 inches across most of
the southern highlands, Bear Lake, Caribou Highlands, and Teton
Valley, and 5- 10 inches for Fremont County, the Big Holes, Bear
River Range, and the Wayan area. These totals match up well with the
NBM and GFS/ECMWF ensemble members.
Again some isolated higher totals in all of these locations are
certainly possible with the development of any enhanced upslope or
convergence bands. In addition to the snow, gusty winds will
create the potential for areas of blowing and drifting snow. A
flash freeze on roadways remains possible as colder air associated
with this system filters into the region. The majority of the
precip is forecast to fall right along and behind the front, but
if any roads can become wet from initial rain/melting snow before
the temps drop, a rapid flash freeze of moisture on roadways may
occur. If this transpires, this may create icy and hazardous
travel conditions, especially on any untreated roads.

Wrap-around moisture will keep snow in the forecast across the SE
part of the state into Monday before gradually diminishing into the
day Tuesday.  We will remain under strong northwest flow aloft with
moisture continuing to stream into central and eastern Idaho. This
will keep the chance of snow going across the mountains, especially
where upslope in northwest flow is enhanced but even down in the
valleys as well although activity will be scattered in nature. Gusty
winds will likely produce some blowing and drifting especially in
the higher elevations. Chilly temps to start the week will gradually
warm as the week progresses. McKaughan
&&

.AVIATION...
Today is a relatively quiet day though we are keeping a mention of
scattered low CIG at PIH and IDA for much of the day. A more active
weather pattern is expected tonight and tomorrow with precip
anticipated at that time with the arrival of a front. SUN will see
snow showers as early as mid-morning with the rest of the sites
seeing snow the remainder of the day. Wind shear of 30 to 35 knot
has been added to the forecast overnight, prior to the arrival of
the frontal boundary tomorrow morning.  When the front does arrive,
expect a quick drop in CIGs. ND
&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory from 8 AM Sunday to 8 PM MST Monday for
IDZ053-064>066.

Winter Weather Advisory from 2 PM Sunday to 8 PM MST Monday for
IDZ054>057.

Winter Storm Warning from 2 PM Sunday to 8 PM MST Monday for
IDZ058>063.
&&

In the hours before

Special weather statement, Feb 1, 2:49 PM MST, 5 hours 38 minutes before
Special Weather Statement
National Weather Service Pocatello ID
249 PM MST Sat Feb 1 2020

IDZ051-052-055-067>075-021200-
Shoshone/Lava Beds-Arco/Mud Lake Desert-Eastern Magic Valley-
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-Wood River Foothills-
Including the cities of Shoshone, Richfield, Carey, Mud Lake,
INL, Craters of the Moon NM, Burley, Rupert, Heyburn, Oakley,
Dubois, Spencer, Edie School, Small, Howe, Arco, Mackay, Chilly,
Borah Peak, Challis, Clayton, Stanley, Ketchum, Sun Valley,
Galena, Copper Basin, Hailey, Bellevue, and Picabo
249 PM MST Sat Feb 1 2020

...WINTER STORM TO IMPACT SOUTHEAST IDAHO SUNDAY AND MONDAY...

A strong Pacific storm system is forecast to move into the
northern Rockies Sunday, bringing a variety of winter weather
hazards for Sunday and Monday. First, snow is expected to begin
across the Central Mountains Sunday morning, spreading southeast
into the Arco Desert and eastern Magic Valley area by Sunday
afternoon. The snow may briefly mix with rain in the eastern Magic
Valley before temperatures cool. Snow will continue into Monday
morning, accumulating 2 to 5 inches across the Central Mountains
with locally up to 8 inches above pass level, 1 to 3 inches in
the Wood River Valley, Lincoln County, and the eastern Magic
Valley. Second, a strong cold front will blast across the region
Sunday afternoon and evening. If roads are wet, rapidly falling
temperatures behind the front may result in a flash freeze,
resulting in icy roads, especially if they are untreated. Finally,
southwest winds of 10 to 15 MPH gusting to 35 MPH are expected
Sunday afternoon across the eastern Magic Valley to Arco Desert,
shifting into the northwest at 15 to 20 MPH gusting to 35 MPH
Monday. Winds across the Central Mountains will largely be out of
the north to northwest at similar speeds at higher elevations, a
bit lower in the valleys. Winds of this magnitude may result in
areas of blowing and drifting snow.

The combination of a possible flash freeze, moderate snow, and
blowing and drifting snow may result in hazardous travel
conditions across the region, especially from Sunday evening
through Monday evening. Snow covered and icy roads and reduced
visibilities are possible.

Stay tuned to the latest updates and possible watches, warnings,
and advisories from the National Weather Service.

The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 2, 4:26 PM MSTSpecial Weather StatementPIHBingham, Bonneville, Jefferson, Madison, Teton3 hr

Nearby

Winter Storm Warnings in Idaho, 2020Every winter storm warning in 2020

Sources

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