Cold and Snow Summary April 12-13 2020

Cold and Snow Summary April 12-13 2020

Minimum Temperatures April 13 2020
Public Information Statement
National Weather Service Riverton WY
841 AM MDT Mon Apr 13 2020

The strong cold front pushed south across western and central Wyoming Saturday,
that produced substantial snowfall across much of the area over the weekend,
has left very cold air in its wake. High temperatures were as much as 45
degrees colder on Sunday, compared to what they were just two days prior on
Friday. The high temperature at the Riverton Regional Airport Friday was
71 degrees, and on Sunday, two days later, was only 25. At the airport near
Buffalo, the high on Friday was 65, and the high on Sunday was only 19. Low
temperatures bottomed out to readings well below zero this morning in many
areas. The following are low temperature readings from throughout the area
this morning.

...LOW TEMPERATURE REPORTS...

Location                     Temp      Time/Date       Elevation (ft.)

...Wyoming...

...Big Horn County...
Ten Sleep 13.5 NE (WYDOT)    -15 F     0706 AM 04/13   8027
Shell Creek Snotel           -10 F     0500 AM 04/13   9580
Bone Springs Div              -8 F     0700 AM 04/13   9350
Bald Mtn.                     -7 F     0600 AM 04/13   9379
Greybull 30 E                 -7 F     0658 AM 04/13   8897

...Fremont County...
Dubois 19 WSW                -14 F     0710 AM 04/13   8833
Burroughs Creek              -11 F     0700 AM 04/13   8750
Brooks Lake Lodge (BTAVAL)    -9 F     0700 AM 04/13   9343
Cold Springs                  -9 F     0600 AM 04/13   9629
Deer Park                     -9 F     0600 AM 04/13   9700
Little Warm Snotel            -9 F     0400 AM 04/13   9370
Lava Mountain (BTAVAL)        -8 F     0400 AM 04/13   10359
Atlantic City                 -7 F     0800 AM 04/13   7821
South Pass Snotel             -5 F     0700 AM 04/13   9040
Townsend Creek Snotel         -5 F     0600 AM 04/13   8700
Elkhorn                       -4 F     0657 AM 04/13   8084
Hobbs Park Snotel             -3 F     0500 AM 04/13   10100
Fort Washakie 10 W            -3 F     0701 AM 04/13   9234
Castle Creek                  -2 F     0400 AM 04/13   8399
Crowheart                     -2 F     0645 AM 04/13   6099
Atlantic City 3 NW            -1 F     0700 AM 04/13   8540
Sweetwater Station 4 SW        0 F     0615 AM 04/13   6591
Pavillion (WACNET)             0 F     0800 AM 04/13   5472

...Hot Springs County...
Owl Creek Snotel              -5 F     0600 AM 04/13   8975

...Johnson County...
Powder River Pass Snotel      -9 F     0600 AM 04/13   9479
Story 6 SE (WYDOT)            -9 F     0622 AM 04/13   4783
Cloud Peak Reservoir          -8 F     0400 AM 04/13   9859
Hansen Sawmill Snotel         -6 F     0400 AM 04/13   8359
Story 15 WSW                  -5 F     1100 PM 04/12   8292
Story 5.5 SE (WYDOT)          -4 F     0642 AM 04/13   4632
Little Goose Snotel           -3 F     0500 AM 04/13   8870
Soldier Park Snotel           -3 F     0400 AM 04/13   8720
Buffalo 18 NW                  -3 F     0547 AM 04/13   8604
Story 10 SW                   -3 F     0700 AM 04/13   8580
Bear Trap Meadow              -1 F     0600 AM 04/13   8200
Buffalo                         0 F     0700 AM 04/13   4370
Kaycee                         0 F     0645 AM 04/13   5403
Mayoworth 20 NW                0 F     0745 AM 04/13   8180

...Lincoln County...
Deadman Peak (BTAVAL)         -3 F     0700 AM 04/13   10339
Mount Coffin (BTAVAL)           -3 F     0700 AM 04/13   10855
Blind Bull Summit (BTAVAL)    -1 F     0700 AM 04/13   9020

...Natrona County...
Reno Hill Snotel              -3 F     0600 AM 04/13   8399
Casper 8 S                    -2 F     0452 AM 04/13   7740
Grave Springs Snotel          -2 F     0700 AM 04/13   8549
Casper Mtn.                   -1 F     0300 AM 04/13   7899

...Park County...
Canyon 1 SW - YNP            -14 F     0649 AM 04/13   7899
Kirwin Snotel                -10 F     0500 AM 04/13   9549
NE Entrance - YNP            -10 F     0300 AM 04/13   7359
Sylvan Lake Snotel           -10 F     0400 AM 04/13   8419
Parker Peak Snotel            -8 F     0600 AM 04/13   9399
Timber Creek Snotel           -8 F     0700 AM 04/13   7950
Wolverine Snotel              -8 F     0400 AM 04/13   7649
Blackwater Snotel             -7 F     0400 AM 04/13   9779
Meeteetse 6 SW                -7 F     0650 AM 04/13   6224
Younts Peak Snotel            -7 F     0600 AM 04/13   8350
Evening Star Snotel           -6 F     0700 AM 04/13   9200
East Entrance 6 W             -6 F     0645 AM 04/13   9798
Mammoth 15 WSW                -5 F     0649 AM 04/13   7899
Cody 32 SW                    -5 F     0700 AM 04/13   6200
Crandall                      -4 F     0612 AM 04/13   6640
Sunlight Basin 8 E (WYDOT)    -4 F     0612 AM 04/13   8083
Lamar Ranger Station - YNP    -4 F     0745 AM 04/13   6604
Sylvan Pass 14 S - YNP        -4 F     0708 AM 04/13   8649
Pahaska 3 E                   -2 F     0657 AM 04/13   7500
Marquette Snotel              -2 F     0600 AM 04/13   8760
Cody 10 WNW                   -1 F     0640 AM 04/13   8400
Tower Ranger Station - YNP    -1 F     0515 AM 04/13   6266
Beartooth Lake Snotel          0 F     0700 AM 04/12   9359

...Sublette County...
Gunsight Pass Snotel          -5 F     0700 AM 04/13   9819
Kendall R.S.                  -3 F     0700 AM 04/13   7740
Loomis Park Snotel            -1 F     0700 AM 04/13   8240
Daniel                         0 F     0800 AM 04/13   7341
Pinedale 7 NE                  0 F     1126 PM 04/12   8529
Pocket Creek Snotel            0 F     0700 AM 04/13   9359

...Teton County...
Grant Village - YNP          -22 F     0605 AM 04/13   7874
Thumb Divide Snotel          -18 F     0600 AM 04/13   7979
Togwotee Pass                -16 F     0715 AM 04/13   8579
Moran Junction 23 E (WYDOT)  -15 F     0656 AM 04/13   9609
Gros Ventre Summit Snotel    -14 F     0700 AM 04/13   8750
Lake Yellowstone - YNP       -14 F     0556 AM 04/13   7839
Togwotee Pass Snotel         -14 F     0700 AM 04/13   9580
Old Faithful - YNP           -13 F     0700 AM 04/13   7319
Surprise Meadow (BTAVAL)     -13 F     0700 AM 04/13   9580
Two Ocean Plateau Snotel     -13 F     0600 AM 04/13   9240
Togwotee Mountain Lodge (BTA -11 F     0600 AM 04/13   9190
Old Faithful                  -9 F     0730 AM 04/13   7350
Lake Yellowstone - YNP        -8 F     0600 AM 04/13   7875
South Entrance 3 W - YNP      -7 F     0500 AM 04/13   7040
Grouse Mountain (BTAVAL)      -7 F     0700 AM 04/13   10305
Grassy Lake                   -6 F     0600 AM 04/13   7265
Jackson Hole - Rendezvous Bo  -5 F     0330 AM 04/13   9634
Jackson Hole - Summit (BTAVA  -5 F     0645 AM 04/13   10328
Freds Mountsin (BTAVAL)       -3 F     0615 AM 04/13   9852
Moran                         -3 F     0800 AM 04/13   6805
Chief Joseph (BTAVAL)         -2 F     0715 AM 04/13   8802
South Entrance - YNP          -2 F     0545 AM 04/13   6898
South Entrance 19 W - YNP     -1 F     0649 AM 04/13   6399
Base Camp                     -1 F     0700 AM 04/13   7029
Moran Jct 7 E                 -1 F     0652 AM 04/13   7250
Grand Targhee Snotel          -1 F     0600 AM 04/13   9260
Snake River Station Snotel    -1 F     0700 AM 04/13   6919
Surprise Pinnacle (BTAVAL)     0 F     0700 AM 04/13   9770

...Washakie County...
Ten Sleep 12 ENE              -6 F     0614 AM 04/13   8202
Ten Sleep 16SSE               -4 F     0700 AM 04/13   4680
Big Trails 15 SE              -3 F     0345 AM 04/13   7220

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.


...Preliminary Snowfall reports for April 11th and 12th...

A spring snow storm brought snowfall to most of the state. The
highest amounts were generally across central and eastern areas.
Below are snow totals from Saturday night, April 11th through the
morning of Sunday, April 12th.

Note: SnoTELS (Snow Telemetry) are remote sensing sites in high
mountain watersheds. Snowfall data from SNOTELS are estimated based
on snow water equivalent.

Location                              Snowfall

Big Horn County...
 Shell Creek Snotel...                8 inches.
 9 ENE Greybull...                  4.1 inches.
 Bald Mountain Snotel...              4 inches.
 Bone Springs Divide Snotel...        4 inches.

Fremont County...
 9 SSE Lander...                     14 inches.
 Deer Park Snotel...                 10 inches.
 2 W Riverton...                      9 inches.
 3 W Riverton...                      9 inches.
 Castle Creek Snotel...               9 inches.
 Riverton...                        8.5 inches.
 6 SW Lander...                     8.3 inches.
 Hudson...                            8 inches.
 Townsend Creek Snotel...             8 inches.
 Lander Airport...                  7.5 inches.
 Lander...                          7.5 inches.
 9 SSE Lander...                    7.4 inches.
 7 WNW Lander...                      7 inches.
 Cold Springs Snotel...               7 inches.
 South Pass Snotel...                 7 inches.
 9.5 SW Lander...                     7 inches.
 3 NE Hudson...                     6.5 inches.
 Hobbs Park Snotel...                 6 inches.
 Brooks Lake...                       5 inches.
 St. Lawrence Alt Snotel...           5 inches.
 9 NW Riverton...                   4.5 inches.
 Riverton Airport...                4.5 inches.
 Dubois...                            4 inches.
 Jeffrey City...                      4 inches.
 Little Warm Snotel...                4 inches.
 Burroughs Creek Snotel...            3 inches.
 Boysen Dam...                        1 inch.

Hot Springs County...
 Owl Creek Snotel...                 11 inches.
 Thermopolis...                       7 inches.
 9 NE Thermopolis...                4.3 inches.

Johnson County...
 Soldier Park Snotel...              10 inches.
 Cloud Peak Reservoir Snotel...      10 inches.
 Little Goose Snotel...              10 inches.
 Hansen Sawmill Snotel...             9 inches.
 4 SSW Buffalo...                     5 inches.
 17 NNW Kaycee...                     4 inches.
 17 E Kaycee...                       4 inches.
 Bear Trap Meadow Snotel...           3 inches.
 13 SSE Buffalo...                    3 inches.

Lincoln County...
 Blind Bull Summit Snotel...          7 inches.
 Willow Creek Snotel...               6 inches.
 Commissary Ridge...                  4 inches.
 Blind Bull Summit...                 3 inches.
 5 SSE Smoot...                       3 inches.
 Indian Creek Snotel...               3 inches.
 Kelley Ranger Station Snotel...      3 inches.
 Cottonwood Creek Snotel...           3 inches.
 Box Y Ranch...                       2 inches.
 Spring Creek Divide Snotel...        2 inches.
 Salt River Summit Snotel...          2 inches.
 3 SE Bedford...                      1 inch.
 2 SE Thayne...                       1 inch.
 Afton...                           0.7 inches.

Natrona County...
 Casper Mountain Snotel...            7 inches.
 1 SW Casper...                     5.5 inches.
 Casper...                          4.5 inches.
 10 WSW Casper...                   4.5 inches.
 4 WSW Casper...                    4.3 inches.
 Powder River...                      4 inches.
 Reno Hill Snotel...                  4 inches.
 Casper Airport...                  3.6 inches.
 2 E Evansville...                  3.4 inches.
 Grave Springs Snotel...              3 inches.

Park County...
 Wolverine Snotel...                  8 inches.
 Evening Star Snotel...               7 inches.
 Marquette Snotel...                  7 inches.
 Timber Creek Snotel...               6 inches.
 Kirwin Snotel...                     5 inches.
 Blackwater Snotel...                 5 inches.
 3 NE Sunshine...                   3.7 inches.
 Pahaska...                           2 inches.
 2 WSW Cody...                        2 inches.
 Beartooth Lake Snotel...             2 inches.
 Cody...                     0.5 to 1.5 inches.
 4 SE Cody...                       1.2 inches.
 Younts Peak Snotel...                1 inch.

Sublette County...
 Larsen Creek Snotel...               7 inches.
 Triple Peak Snotel...                7 inches.
 Loomis Park Snotel...                7 inches.
 East Rim Divide Snotel...            7 inches.
 New Fork Lake Snotel...              6 inches.
 Gunsite Pass Snotel...               5 inches.
 Kendall Ranger Station Snotel...     5 inches.
 Big Sandy Opening Snotel...          5 inches.
 Elkhart Park G.S. Snotel...          3 inches.
 Boulder Rearing Station...           2 inches.
 14 NW Pinedale...                  1.8 inches.
 Bondurant...                       0.8 inches.

Sweetwater County...
 4 NNW Rock Springs...                1 inch.
 Rock Springs...             0.6 to 0.8 inches.
 7 SE Rock Springs...               0.5 inches.
 Green River...              0.1 to 0.5 inches.
 2 NNE Farson...                    0.2 inches.

Teton County...
 Gros Ventre Summit Snotel...         7 inches.
 Togwotee Pass Snotel...              6 inches.
 Jackson Hole - Raymer...             6 inches.
 Jackson Hole - Rendezvous Bowl...    6 inches.
 Jackson Hole - Mid Mountain...       4 inches.
 Togwotee Mountain Lodge...           3 inches.
 Grand Targhee Snotel...              3 inches.
 1 NNW Alta...                        2 inches.
 12 NE Jackson...                     2 inches.
 3 SSW Wilson...                      2 inches.
 Jackson Hole - Base...               1 inch.
 Jackson Dam...                     0.9 inches.
 1 ENE Teton Village...             0.3 inches.

Washakie County...
 Middle Powder Snotel...              9 inches.
 27 S Ten Sleep...                    7 inches.
 16 SSE Ten Sleep...                5.5 inches.
 4 N Ten Sleep...                   5.2 inches.
 Ten Sleep...                       4.5 inches.
 Winchester...                        3 inches.
 8 SW Worland...                      2 inches.
 Powder River Pass Snotel...          2 inches.

Yellowstone National Park...
 Two Ocean Plateau Snotel...          3 inches.
 Parker Peak Snotel...                3 inches.
 Lewis Lake Divide Snotel...          2 inches.
 Sylvan Lake Snotel...                2 inches.

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