Drought Information Statement
Issued by NWS Cheyenne, WY

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000
AXUS75 KCYS 081926
DGTCYS
NEC007-013-033-045-105-123-157-165-WYC001-007-009-015-021-027-031-
280000-

Drought Information Statement
National Weather Service Cheyenne WY
1225 PM MST Mon Feb 8 2021

...Moderate to Extreme Drought Persists Across Southeast Wyoming and
the Nebraska Panhandle...

.SYNOPSIS...

Generally milder and drier than normal conditions prevailed through
January and the first few days of February. There were a few snow
events early and late in January.

The February 2 U.S. Drought Monitor showed areas of moderate drought
(D1) over southern Platte and Goshen counties into much of Laramie
County, as well as portions of southeast Carbon and southwest Albany
counties.

Severe drought (D2) surrounded the D1 areas of southeast Wyoming and
far southwest Nebraska Panhandle, as well as most of Converse, Niobrara
and northern Sioux counties.

Extreme drought (D3) encompassed western and southern Carbon, southern
Converse and Niobrara counties, northern Platte and Goshen counties,
and across much of the Nebraska Panhandle.

.SUMMARY OF IMPACTS...

.FIRE DANGER IMPACTS...

Below average precipitation and slightly above average temperatures
across southeast Wyoming and the Nebraska Panhandle during the past
30 days generated low to moderate fire danger.

.AGRICULTURAL IMPACTS...

As of February 7, the Palmer Drought Severity and Crop Moisture
Indices depicted abnormally dry conditions. Soil moisture deficits
ranged between 40 and 80 mm.

Wyoming January topsoil moisture was rated 90 percent short to very
short, compared to 79 percent in December. Subsoil moisture was
rated 88 percent short to very short, compared to 82 percent in
December. Hay and roughage supplies were rated 44 percent short to
very short. Stock water supplies were rated 38 percent short to very
short. Pasture and range conditions were rated 60 percent poor to
very poor, compared to 47 percent in December. Winter wheat was 19
percent poor to very poor, compared to 14 percent in December.

Across Nebraska, topsoil moisture was rated 60 percent short to very
short in January. Subsoil moisture was rated 64 percent short to
very short. Winter wheat was rated 18 percent poor to very poor and
48 percent fair.

.HYDROLOGIC CONDITIONS...

Wyoming SNOTEL snow water equivalents during the past 30 days varied
between 60 and 90 percent of normal.

Below normal to normal streamflows were observed along the North Platte
River, Encampment River, Little Snake River, Rock and Lodgepole Creeks,
Laramie River, Medicine Bow River, and Little Laramie River.

February 7 Southeast Wyoming and Nebraska Panhandle Reservoir
Storages...

RESERVOIR PERCENT FULL

Alcova 85
Glendo 71
Guernsey 36
Kortes    100
Pathfinder 58
Seminoe 57
Gray Reef 98
Box Butte 56
Lake Alice  1
Little Lake Alice           11
Minatare 35
Winters Creek               26

.CLIMATE SUMMARY...

Below are the cumulative precipitation and percent of averages from
SNOTELS for Water Year Oct 2020-Sep 2021, and Selected Cities in
Southeast Wyoming and the Nebraska Panhandle since January 1.

Note...Basin-wide percent of averages are based on 1981-2010 normals.
Selected Cities percent of averages are based on 1981-2010 normals.

Basin Precipitation % of Average Location
(inches)Oct 2020-Sep 2021

North Platte
Divide Peak11.479
Laprele Creek  6.1 77
Medicine Bow21.9 MM
North French Creek     16.6 95
Old Battle 17.474
Sage Creek Basin  7.0 68
Sand Lake 16.0    101
South Brush Creek  6.8 69
Webber Springs 13.4 75
Whiskey Park 16.4 87
Windy Peak  4.8 73

Laramie/Little Laramie
Crow Creek 4.771
Brooklyn Lake15.0   111
Cinnabar Park12.8 76

Little Snake
Sandstone RS 7.056
Little Snake River18.183

Selected Cities
Cheyenne0.19    44
Douglas0.0715
Laramie0.1235
Rawlins0.58   129
Torrington0.06     18
Alliance0.0311
Chadron0.1021
Scottsbluff0.3974
Sidney 0.02        8

.PRECIPITATION/TEMPERATURE OUTLOOK...

La Nina conditions will persist through Winter 2021 (95 percent
chance during February and March), with a transition in Spring 2021
(55 percent chance of neutral conditions April through June).
Typically, La Nina patterns favor near average temperatures and near
to below average precipitation.

The outlook for February by the Climate Prediction Center predicts
below average temperatures and above average precipitation. The
outlook for February through April predicts above average
temperatures and near to below average precipitation.

The seasonal drought outlook through April indicates a continuation
of drought conditions.

.NEXT ISSUANCE DATE...

This product will be updated March 8 or sooner if drought conditions
change significantly.

.RELATED WEB SITES...

Additional information on current drought conditions may be found at
the following web addresses /use lower case letters/...

To report effects of the drought in your area...please go to the Drought
Impact Reporter at...

http://droughtreporter.unl.edu/map and click on Submit a Report

Information for the media may be found at...

http://drought.unl.edu/newsoutreach/informationformedia.aspx

USGS Wyoming Drought Watch...
http://wy.water.usgs.gov/projects/drought/

U.S. Drought Monitor...https://www.drought.gov

NOAA Drought Page...https://www.drought.noaa.gov

Climate Prediction Center /CPC/...https://www.cpc.ncep.noaa.gov

Additional River and Reservoir Information...

NWS...https://water.weather.gov OWP...https://water.noaa.gov

NWS Advanced Hydrologic Prediction Service /AHPS/...
https://www.water.gov/ahps2/index.php?WFO=cys

NRCS Wyoming...http://www.wy.nrcs.usda.gov

USGS...https://water.usgs.gov/

USBR...https://www.usbr.gov/

Water Resource Data System (WRDS)...http://www.wrds.uwyo.edu

Acknowledgments...

The Drought Monitor is a multi-agency effort involving the National
Weather Service (NWS) and National Center for Environment Prediction
...USDA...state and regional center climatologists and the National
Drought Mitigation Center. Information for this statement was gathered
from NWS and FAA observation sites...State Cooperative Extension
Services...USACE and USGS.

Questions or comments...

If you have any questions or comments regarding this drought product...
please contact...

Mike Jamski
Climate/Hydrology Program Manager
National Weather Service
1301 Airport Parkway
Cheyenne, WY 82001
Telephone...307-772-2468
............800-269-6220
Email...mike.jamski@noaa.gov

$$


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