Drought Information Statement
Issued by NWS Cheyenne, WY

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Drought Information Statement
National Weather Service Cheyenne WY
400 AM MDT Sat Sep 24 2022

...Below normal precipitation and above normal temperatures through
September 23 maintained moderate to extreme drought conditions...

.SYNOPSIS...

September precipitation through the 23rd varied from a trace at
Laramie (0.84 inch below normal), to 1.04 inches at Cheyenne (0.12
inch below normal). September average temperatures through the 23rd
ranged from 59.7 degrees at Laramie (3.9 degrees above normal), to
68.8 degrees at Scottsbluff (3.7 degrees above normal).

The September 20 U.S. High Plains Drought Monitor depicted
abnormally dry (D0) conditions along the Laramie Range in Albany
County, extreme northwestern and northeastern Carbon County,
southwest corner of Converse County, southern Dawes County, far
northern Box Butte County, and portions of east central Sioux County.

Moderate drought (D1) prevailed through much of Carbon County,
western and eastern Converse County, portions of western and eastern
Albany County, Niobrara County, extreme northern Platte and
northwest Goshen counties, portions of western and southern Sioux
County, and much of Box Butte County.

Severe drought (D2) covered portions of southern and southeastern
Carbon County, southwest corner of Albany County, central and
southern Converse County, much of Platte County, northern Goshen
County, western Laramie County, most of Scotts Bluff County, eastern
Banner County, northeast corner of Kimball County, Morrill County,
northern Cheyenne County, southwest corner of Sioux County, and far
northern Dawes County.

Extreme drought (D3) extended from central and southern Goshen
County and southeast corner of Plate County through central and
eastern Laramie County, southwest corner of Scotts Bluff County,
western Banner County, much of Kimball County and southern Cheyenne
County.

.SUMMARY OF IMPACTS...

.FIRE DANGER IMPACTS...

Above normal temperatures and below normal precipitation favored
moderate to high fire danger. 10-Hour fuel moisture ranged from the
7th to 8th percentile. 1000-Hour fuel moisture ranged from the 11th
to 15th percentile.

.AGRICULTURAL IMPACTS...

As of September 18, drought-free conditions across Wyoming improved
to 13 percent, with abnormally dry conditions 33 percent, moderate
drought 33 percent, severe drought 20 percent, and extreme drought 1
percent. Irrigation water supplies were rated 40 percent poor to
very poor, 23 percent fair, and 37 percent good. Stock water
supplies were rated 46 percent short to very short and 54 percent
adequate. Topsoil moisture was rated 78 percent short to very short
and 22 percent adequate. Subsoil moisture was rated 83 percent short
to very short and 17 percent adequate. Livestock was rated 1 percent
poor, 7 percent fair, and 75 percent good. Pasture and range was
rated 35 percent poor to very poor, 27 percent fair, and 36 percent
good.

As of September 18, Nebraska topsoil and subsoil moisture supplies were
rated 82 percent short to very short and 18 percent adequate. Corn was
rated 36 percent poor to very poor, 27 percent fair, 29 percent good,
and 8 percent excellent. Soybeans were rated 31 percent poor to very
poor, 29 percent fair, 32 percent good, and 8 percent excellent.
Pasture and range conditions were 78 percent poor to very poor, 15
percent fair, 6 percent good, and 1 percent excellent. Winter wheat
planted was 18 percent, behind 32 percent last year and 31 percent
average.

.SOIL MOISTURE...

Soil moisture deficits ranged from 20 to 40 mm in southeast Wyoming
and 40 to 80 mm across the Nebraska Panhandle. Crop moisture indices
were -2 to -2.9, indicative of excessively dry conditions.

.HYDROLOGIC CONDITIONS...

Streamflows on the North Platte River were observed at normal levels
(25th to 75th percentile). Below normal flows (10th to 24th
percentile) were observed at Rock Creek above King Canyon near
Arlington, Wyoming, Medicine Bow River above Seminoe Reservoir near
Hanna, Wyoming, and Lodgepole Creek at Bushnell, Nebraska.

September 22 Southeast Wyoming/Nebraska Panhandle Reservoir Storages...

RESERVOIR                           PERCENT FULL

Alcova                              98
Glendo                              23
Guernsey                            25
Kortes                              99
Pathfinder                           28
Seminoe                             50
Gray Reef                           91
Box Butte                           25
Lake Alice                          6
Little Lake Alice                   11
Minatare                            25
Winters Creek                       35

.CLIMATE SUMMARY...

Below are the cumulative precipitation and departures from normal for
Selected Cities in Southeast Wyoming and the Nebraska Panhandle
since January 1. (Based on 1991-2020 climatological normals)

Selected Cities
Cheyenne                           8.14         -4.87
Douglas                            2.28         -7.15
Laramie                            5.90         -2.80
Rawlins                            4.16         -3.09
Torrington                         5.56         -5.42
Alliance                          11.29         -1.94
Chadron                           10.41         -2.48
Scottsbluff                         8.01         -4.98
Sidney                             5.84         -8.02

.ENSO/PRECIPITATION/TEMPERATURE OUTLOOKS...

Below average sea surface temperatures persisted across the central
and eastern equatorial Pacific. The average weekly Nino-3.4 index
ranged from -0.8 to -1.1 degrees Celsius. La Nina will persist into
the Northern Hemisphere winter 2022-2023, with chances for La Nina
decreasing from 91 percent chance September to November 2022, to 54
percent chance January to March 2023.

The October 2022 outlook issued by the Climate Prediction Center
favors a 40 to 60 percent chance of above normal temperatures and a
33 to 50 percent chance of below normal precipitation.

The October through December 2022 outlook favors a 33 to 50 percent
chance of above normal temperatures and a 33 to 40 percent chance of
below normal precipitation.

The seasonal drought outlook through December 2022 favors a
continuation of drought conditions for the majority of the region.
The exception will be along the Laramie Range in southeast Wyoming.

.NEXT ISSUANCE DATE...

This product will be updated October 24 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...

National Weather Service
1301 Airport Parkway
Cheyenne, WY 82001
Telephone...307-772-2468
............800-269-6220
Email...w-cys.webmaster@noaa.gov

$$


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