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National Drought Status

Week of
-

Current Conditons

While drought persisted across the West in 2020, the Southeast was mostly wet. However, abnormal dryness now appears in Alabama, Florida, Georgia, South Carolina, Louisiana, and Mississippi. La Niña may turn that dryness into drought. According to NOAA's Climate Prediction Center, La Niña is expected to continue through the winter and early spring. This week’s U.S. Drought Monitor change map shows mostly small degradations scattered around the U.S. The exception is a large area of dryness developing across Kentucky and Tennessee, though some of this may improve with incoming precipitation. Extreme (D3) to Exceptional (D4) Drought continues across much of the Plains, Rockies, and Southwest. As of January 19, 2021, 37.64% of the U.S. was in drought.

 

U.S. Drought Monitor

The U.S. Drought Monitor (USDM) is updated each Thursday to show the location and intensity of drought across the country using a five-category system, from Abnormally Dry (D0) conditions to Exceptional Drought (D4).

The USDM is a joint effort of the National Drought Mitigation Center, USDA, and NOAA. Learn more.

The U.S. Drought Monitor (USDM) is updated each Thursday to show the location and intensity of drought across the country using a five-category system, from Abnormally Dry (D0) conditions to Exceptional Drought (D4). The USDM is a joint effort of the National Drought Mitigation Center, USDA, and NOAA. 

The USDM Change Map shows where drought has improved, remained the same, or worsened since the previous week's Drought Monitor. Learn more.

U.S. Drought Monitor Categories

The color with the hex code #ffff00 identifies:
D0 - Abnormally Dry
The color with the hex code #ffcc99 identifies:
D1 - Moderate Drought
The color with the hex code #ff6600 identifies:
D2 - Severe Drought
The color with the hex code #ff0000 identifies:
D3 - Extreme Drought
The color with the hex code #660000 identifies:
D4 - Exceptional Drought

Classes Drought Has Degraded or Improved Since Last Week

The color with the hex code #543005 identifies:
-5
The color with the hex code #a87000 identifies:
-4
The color with the hex code #ff9900 identifies:
-3
The color with the hex code #ffd438 identifies:
-2
The color with the hex code #ffff73 identifies:
-1
The color with the hex code #cccccc identifies:
0

The color with the hex code #cdffd4 identifies:
+1
The color with the hex code #8ad48c identifies:
+2
The color with the hex code #359766 identifies:
+3
The color with the hex code #016678 identifies:
+4
The color with the hex code #003d75 identifies:
+5
Source(s):

NDMCNOAAUSDA

Source(s):

NDMCNOAAUSDA

Updates Weekly  -  01/19/21
Updates Weekly  -  01/21/21

Evaporative Demand (EDDI)

The Evaporative Demand Drought Index (EDDI) is an experimental drought monitoring tool that can serve as an indicator of both rapidly evolving "flash" droughts and sustained droughts. It examines how anomalous the atmospheric evaporative demand (E0; also known as "the thirst of the atmosphere") is for a given location and across a time period of interest. EDDI can offer early warning of agricultural drought, hydrologic drought, and fire-weather risk. Learn more.

Drought Categories

The color with the hex code #730000 identifies:
ED4
The color with the hex code #e60000 identifies:
ED3
The color with the hex code #ffaa00 identifies:
ED2
The color with the hex code #ffd37f identifies:
ED1
The color with the hex code #ffff00 identifies:
ED0

Wetness Categories

The color with the hex code #8ccdef identifies:
EW0
The color with the hex code #00bfff identifies:
EW1
The color with the hex code #1d90ff identifies:
EW2
The color with the hex code #4169e1 identifies:
EW3
The color with the hex code #0000ff identifies:
EW4
Updates Daily  -  01/25/21
Updates Daily  -  01/25/21
Experimental Experimental

Precipitation Conditions

The current precipitation conditions show the precipitation accumulation for the last 7 days using the gridMET and NLDAS precipitation datasets, which are delayed from the current day by 2 to 3 days to allow for data collection and quality control.

The last 30- and 60-day percentages of normal precipitation are also available, which show the difference of the last 30 or 60 days from the usual conditions for the same time period averaged since 1980. Learn more.

Inches of Precipitation

The color with the hex code #ffffff identifies:
0
The color with the hex code #c8e9c3 identifies:
2
The color with the hex code #75c9c6 identifies:
4
The color with the hex code #298abd identifies:
6
The color with the hex code #084182 identifies:
≥ 8

Percent of Normal Precipitation

The color with the hex code #5b3406 identifies:
0
The color with the hex code #ffffff identifies:
100
The color with the hex code #58b0a7 identifies:
200
The color with the hex code #003c30 identifies:
≥ 300

Percent of Normal Precipitation

The color with the hex code #5b3406 identifies:
0
The color with the hex code #ffffff identifies:
100
The color with the hex code #58b0a7 identifies:
200
The color with the hex code #003c30 identifies:
≥ 300
Source(s):

UC MercedClimate Engine

Source(s):

UC MercedClimate Engine

Source(s):

UC MercedClimate Engine

Updates Daily  -  01/23/21
Updates Daily  -  01/23/21
Updates Daily  -  01/23/21

Temperature Conditions

The current temperature conditions show the average maximum daily temperature for the last 7 days using the gridMET and PRISM temperature datasets, which are delayed from the current day by 2 to 3 days to allow for data collection and quality control. The last 30- and 60-day departures from normal temperature are also available, which show the difference of the last 30 or 60 days from the usual conditions for the same time period averaged since 1980. Learn more.

Mean Temperature (°F)

The color with the hex code #05346c identifies:
≤ 0
The color with the hex code #216cac identifies:
10
The color with the hex code #4393c3 identifies:
20
The color with the hex code #92c5de identifies:
30
The color with the hex code #d1e5f0 identifies:
40
The color with the hex code #ffffff identifies:
50

The color with the hex code #fddbc7 identifies:
60
The color with the hex code #f4a582 identifies:
70
The color with the hex code #d6604d identifies:
80
The color with the hex code #b2182b identifies:
90
The color with the hex code #69012c identifies:
≥ 100

Departure from Normal Temperature (°F)

The color with the hex code #0404ff identifies:
≤ -8
The color with the hex code #2166ac identifies:
-6
The color with the hex code #4393c3 identifies:
-4
The color with the hex code #92c5de identifies:
-3
The color with the hex code #d1e5f0 identifies:
-1
The color with the hex code #ffffff identifies:
0

The color with the hex code #fddbc7 identifies:
1
The color with the hex code #f4a582 identifies:
3
The color with the hex code #d6604d identifies:
4
The color with the hex code #b2182b identifies:
6
The color with the hex code #800000 identifies:
≥ 8

Departure from Normal Temperature (°F)

The color with the hex code #0404ff identifies:
≤ -8
The color with the hex code #2166ac identifies:
-6
The color with the hex code #4393c3 identifies:
-4
The color with the hex code #92c5de identifies:
-3
The color with the hex code #d1e5f0 identifies:
-1
The color with the hex code #ffffff identifies:
0

The color with the hex code #fddbc7 identifies:
1
The color with the hex code #f4a582 identifies:
3
The color with the hex code #d6604d identifies:
4
The color with the hex code #b2182b identifies:
6
The color with the hex code #800000 identifies:
≥ 8
Source(s):

UC MercedClimate Engine

Source(s):

UC MercedClimate Engine

Source(s):

UC MercedClimate Engine

Updates Daily  -  01/23/21
Updates Daily  -  01/23/21
Updates Daily  -  01/23/21
37.64%

of the U.S. is in drought this week.

97.0 Million

acres of crops in U.S. are experiencing drought conditions this week.

67.4 Million

people in the U.S. are affected by drought this week.

29

U.S. states are experiencing Moderate Drought (D1) or worse this week.

Report Impacts

Tell us how drought is impacting your community by submitting a condition monitoring report. Your submissions help us better understand how drought is affecting local conditions. 

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