Drought Information Statement
Issued by NWS Denver/Boulder, CO

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AXUS75 KBOU 072024
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COC001-005-013-014-019-031-035-039-047-049-057-059-069-073-075-087-
093-095-115-117-121-123-062300-

Drought Information Statement
National Weather Service Denver CO
124 PM MST Thu Mar 7 2019

...Colorado sees improvements with Severe Drought removed from the
north central mountains and east central plains...

SYNOPSIS...

Precipitation the past two weeks has generally been above to much
above normal. The mountain snowpack has also increased
significantly, and is now above average across Colorado.

Due to the wetter conditions, Severe Drought /D2/ has been removed
from Clear Creek, Elbert, Grand, Lincoln, Summit Counties, and all
but the southern tip of Park County on the U.S. Drought Monitor.
Moderate Drought /D1/ was removed from Jackson County in the North
Platte River basin.

LOCAL AREAS AFFECTED...

On the U.S. Drought Monitor: Moderate /D1/ continued from
Grand/Gilpin Counties southward and was also observed on the east
central plains. Abnormally Dry conditions /D0/ endured elsewhere in
north central and northeast Colorado.

WATER SUPPLY...

The Colorado River basin snowpack above Kremmling was around 125
percent of normal on March 7th. The mountain snowpack was 124 and
118 percent of normal, respectively, in the South Platte and North
Platte River basins east of the Continental Divide. The snow water
equivalent in the mountain snowpack ranged from 7 to 45 inches. The
mountains are about three-quarters of the way through a typical snow
accumulation season so conditions may still change before the runoff
begins.

Basin reservoir storage continued to hold fairly steady at the end
of February. The upper Colorado River basin storage was 90 percent
of average or 59 percent of capacity. Combined reservoir storage in
the South Platte basin was 102 percent of average or 75 percent of
capacity.

Over half of the U.S. Geological Survey stream gages continued to
have normal to above normal flows on March 7th.

CLIMATE SUMMARY...

Temperatures varied from 2 to 5 degrees below normal west of the
Continental Divide to 15 to 25 degrees colder than normal on the far
eastern plains the past two weeks. Preliminary Cooperative Observer
February 2019 precipitation reports are listed below:

Location              Elev     2019   Normal  Departure  % Normal
--------              ----     ----   ------  ---------  --------
Above 8000 feet
 Antero Reservoir     8920     0.62     0.30      0.32      207
 Dillon               9065     0.60     0.91     -0.31       66
 Georgetown 4S       10020     1.63     0.89      0.74      183
 Grand Lake 1NW       8720     1.74     1.72      0.02      101
 Lake George 8SW      8550     0.60     0.31      0.29      194
 Walden               8056     0.58     0.64     -0.06       91
 Winter Park          9108     2.07     2.15     -0.08       96

6000 to 8000 feet
 Cheesman Reservoir   6880     0.69     0.56      0.13      123
 Conifer 6NE          7180     0.97     0.90      0.07      108
 Estes Park           7785     0.25     0.71     -0.46       35
 Evergreen            6985     0.81     0.70      0.11      116
 Gross Reservoir      7970     0.51     0.78     -0.27       65
 Virginia Dale 7ENE   7015     0.43     0.50     -0.07       86
 Williams Fork Rsvr   7618     0.62     0.86     -0.24       72

Front Range Urban Corridor
 Boulder              5484     0.74     0.82     -0.08       90
 Brighton 3SE         5016     0.80     0.37      0.43      216
 Denver area          5284     0.72     0.37      0.35      195
 Fort Collins         5004     0.16     0.40     -0.24       40
 Lakewood             5640     0.64     0.51      0.13      125
 Loveland             5080     0.29     0.52     -0.23       56
 Northglenn           5407     0.49     0.37      0.12      132
 Wheat Ridge          5398     0.61     0.70     -0.09       87

Colorado Plains
 Akron 4E             4540     0.45     0.40      0.05      113
 Byers 5ENE           5100     0.59     0.39      0.20      151
 Holyoke              3780     0.49     0.49      0.00      100
 Karval               5075     0.37     0.31      0.06      119
 Leroy 5WSW           4550     0.42     0.41      0.01      102
 New Raymer 21N       5180     0.14     0.36     -0.22       39
 Sedgwick 5S          3990     0.29     0.53     -0.24       55
 Shaw 4ENE            5000     0.48     0.44      0.04      109
 Woodrow 6NNE         4374     0.55     0.34      0.21      162

Preliminary 90 day Cooperative Observer precipitation totals
for November 29th, 2018 through February 26th, 2019 follow:

Location              County  18-19   Normal  Departure  % Normal
--------              ------   ----   ------  ---------  --------
Above 8000 feet
 Antero Reservoir   Park       1.86     0.84      1.02      221
 Dillon             Summit     2.34     2.60     -0.26       90
 Georgetown         Clear Ck   1.62     2.43     -0.81       67
 Georgetown 4W      Clear Ck   3.66     2.63      1.03      139
 Lake George 8SW    Park       1.26     0.98      0.28      129
 Walden             Jackson    1.34     1.83     -0.49       73
 Winter Park        Grand      5.19     6.48     -1.29       80

6000 to 8000 feet
 Cheesman Resvr     Douglas    1.73     1.64      0.09      105
 Conifer 6NE        Jefferson  3.73     2.65      1.08      141
 Estes Park         Larimer    1.37     2.07     -0.70       66
 Evergreen          Jefferson  2.72     2.08      0.64      131
 Gross Reservoir    Boulder    1.97     2.36     -0.39       83
 Virginia Dale 7ENE Larimer    1.13     1.49     -0.36       76
 Williams Fork Rsvr Grand      2.03     2.57     -0.54       79

Front Range Urban Corridor
 Boulder            Boulder    2.64     2.52      0.12      105
 Brighton 3SE       Adams      1.72     1.29      0.43      133
 Denver area        Denver     1.54     1.13      0.41      136
 Fort Collins       Larimer    0.74     1.30     -0.56       57
 Lakewood           Jefferson  1.95     1.67      0.28      117
 Loveland           Larimer    1.11     1.63     -0.52       68
 Northglenn         Adams      2.13     1.30      0.83      164
 Wheat Ridge        Jefferson  1.98     2.16     -0.18       92

Northeast/East Central Colorado Plains
 Akron 4E           Washington 0.86     1.17     -0.31       74
 Byers 5ENE         Adams      1.61     1.27      0.34      127
 Holyoke            Phillips   0.97     1.33     -0.36       73
 Karval             Lincoln    0.67     0.90     -0.23       74
 Leroy 5WSW         Logan      0.62     1.15     -0.53       54
 New Raymer 21N     Weld       0.47     1.04     -0.57       45
 Sedgwick 5S        Sedgwick   0.64     1.33     -0.69       48
 Shaw 4ENE          Washington 1.05     1.24     -0.19       85
 Woodrow 6NNE       Morgan     1.01     1.10     -0.09       92

OUTLOOKS...

The outlooks for the month of March have a tilt toward below normal
temperatures and above normal precipitation. The U.S. Seasonal
Drought Outlooks indicate drought removal is likely in the north
central mountains and east central plains this spring. There is a 55
percent chance that weak El Nino conditions will continue through
this spring.

&&

RELATED WEB SITES...

Additional information on current drought conditions may be found at
the following addresses:

Local weather...climate and water information: www.weather.gov/bou

U.S. Drought Monitor:
droughtmonitor.unl.edu

Colorado Climate Center Intermountain West Drought Early Warning
System: climate.colostate.edu/~drought/

NWS Climate Prediction Center Outlooks:
www.cpc.ncep.noaa.gov

CWCB Water Availability Task Force Presentations:
cwcb.state.co.us/public-information/flood-water-availability-task-
forces/

ACKNOWLEDGMENTS...

The U.S. Drought Monitor is a multi-agency effort involving NOAA`s
National Weather Service, State and Regional Climate Centers,
Department of Agriculture (USDA) and the National Drought Mitigation
Center. Information for this statement has been gathered from NWS
and FAA observation sites, Cooperative Network stations, the Natural
Resources Conservation Service SNOTEL Network, U.S. Geological
Survey, U.S. Bureau of Reclamation and U.S. Army Corp of Engineers
stream and reservoir gages.

$$
tlh



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