Drought Determination

Category	Description
D0	Abnormally Dry
`Possible Impacts: Going into drought: short-term dryness slowing planting, growth of crops or pastures. Coming out of drought: some lingering water deficits; pastures or crops not fully recovered`
D1	Moderate Drought
Some damage to crops, pastures; streams, reservoirs, or wells low, some water shortages developing or imminent; voluntary water-use restrictions requested
D2	Severe Drought
Crop or pasture losses likely; water shortages common; water restrictions imposed
D3	Extreme Drought
Major crop/pasture losses; widespread water shortages or restrictions
D4	Exceptional Drought
Exceptional and widespread crop/pasture losses; shortages of water in reservoirs, streams, and wells creating water emergencies

U.S. DROUGHT OUTLOOKS

One Month Drought Outlook	Seasonal Drought Outlook (3 months)

DROUGHT TRACKER, VEGETATION, and QUICK DROUGHT INDICES FOR COLORADO

Westwide Drought Tracker	Vegetation Drought Response	Quick Drought Response Index ()

SOIL MOISTURE

10 cm soils in Colorado ()	top meter soils in Colorado ()	U.S. Soils, Crops & Drought
		or or or or or or or

- Colorado

3 month	6 month	12 month

% of Median Basins & SNOTEL Sites	% of Median River Basin only	% of Median SNOTEL sites only
or or or	or or	or or or

NRCS SNOWPACK SWE TIMESERIES GRAPHS (below or click here)

Statewide and Basins in North Central Colorado. SNOTEL sites	Subbasins in the South Platte Basin	Subbasins in the North Platte Basin and just West of the Divide

SNOWFALL MAPS

博体育 Snowfall Analysis & Reports	Colorado CoCoRaHS Reports	博体育 Monthly Snowfall
Snowfall Reports Map (interactive) (from 1 to 72 hr slider) or 7am Contour Map (interactive) (24, 48 or 72 hr snowfall)	(change to Snowfall top left corner) or or	NC/NE Colorado Maps

SNOW DEPTH MAPS

NOHRSC Colorado Map	Colorado CoCoRaHS Reports	NRCS Colorado Snow Depths
	(change to Snow Depth top left) or or	or

Snow Depth

Snow Depth SWE Change

Snow Melt

Snow Depth

Snow Depth SWE Change

Snow Melt

NATIONAL WEATHER SERVICE FORECASTS

Hourly Graphs	Colorado Maps	U.S. Maps (travel)
type in lat lon (out 2 days)	(interactive) (to 7 days)	(0.5 to 2.5 days) (3 days) or

PAST PRECIPITATION

Percent of Normal Precipitation in Colorado

Last 7 days	Last 30 days	Last 90 days	Oct 1st-water year

Average Precipitation Departure from Normal in Colorado

Last 7 days	Last 30 days	Last 90 days	Oct 1st-water year

U.S. PRECIPITATION OUTLOOKS

6 - 10 Day Outlook	8 - 14 Day Outlook	Week 3-4 Outlook

One Month Outlook	Three Month Outlook	following 3 Month Outlook

PAST TEMPERATURES

Average Temperature Departure from Normal in Colorado

Last 7 days	Last 30 days	Last 90 days	Since Oct 1st-water year

U.S. TEMPERATURE OUTLOOKS

6 - 10 Day Outlook	8 - 14 Day Outlook	Week 3-4 Outlook

One Month Outlook	Three Month Outlook	following 3 Month Outlook

RESERVOIR STORAGE
(courtesy of the NRCS)

% of Average Colorado Maps	% of Average Westwide Map
(interactive) or	(interactive)

STREAMFLOW


or or or or	or or or

WATER SUPPLY FORECASTS
January through June

博体育 Map