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California Region Watershed Drought Information

California Region Current Conditions

The U.S. Drought Monitor (USDM) is updated each Thursday to show the location and intensity of drought across the country. This map shows the drought conditions of the California Region watershed, 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.

D0 - Abnormally Dry
  • Short-term dryness slowing planting, growth of crops.
  • Some lingering water deficits
  • Pastures or crops not fully recovered
0
of California Region
(D0-D4)
D1 - Moderate Drought
  • Some damage to crops, pastures
  • Some water shortages developing
  • Voluntary water-use restrictions requested
0
of California Region
(D1-D4)
D2 - Severe Drought
  • Crop or pasture loss likely
  • Water shortages common
  • Water restrictions imposed
0
of California Region
(D2-D4)
D3 - Extreme Drought
  • Major crop/pasture losses
  • Widespread water shortages or restrictions
0
of California Region
(D3-D4)
D4 - Exceptional Drought
  • Exceptional and widespread crop/pasture losses
  • Shortages of water creating water emergencies
0
of California Region
(D4)
Short-Term Drought Indicator Blend
EXPERIMENTAL

These experimental drought blends integrate several key drought monitoring products and indices into a single short-term or long-term product, based on the methodology developed at the NOAA Climate Prediction Center. The blends are created using the Climate Engine tool, and apply the CPC weighting ratios to the high-resolution gridMET gridded research dataset. The data is updated daily, with a delay of 2 to 3 days to allow for data collection and quality control.

The short-term blend combines PDSI, Z-Index, 1-month SPI, and 3-month SPI to estimate the overall short-term drought. Please refer to the product documentation for more information. This product is an example of current NIDIS-funded research.

This data is updated every 5 days, with a delay of 4 to 5 days to allow for data collection and quality control.

* Currently, data is only available for the contiguous U.S.
D4 D3 D2 D1 D0  
0-2 2-5 5-10 10-20 20-30 30-70
W0 W1 W2 W3 W4
70-80 80-90 90-95 95-98 98-100

Click here for more information about this legend

04/23/20
Long-Term Drought Indicator Blend
EXPERIMENTAL

These experimental drought blends integrate several key drought monitoring products and indices into a single short-term or long-term product, based on the methodology developed at the NOAA Climate Prediction Center. The blends are created using the Climate Engine tool, and apply the CPC weighting ratios to the high-resolution gridMET gridded research dataset. The data is updated daily, with a delay of 2 to 3 days to allow for data collection and quality control.

The long-term blend combines PDSI, Z-Index, and 6-month, 1-year, 2-year, and 5-year SPI to estimate the overall long-term drought. Please refer to the product documentation for more information. This product is an example of current NIDIS-funded research.

This data is updated every 5 days, with a delay of 4 to 5 days to allow for data collection and quality control.

* Currently, data is only available for the contiguous U.S.
D4 D3 D2 D1 D0  
0-2 2-5 5-10 10-20 20-30 30-70
W0 W1 W2 W3 W4
70-80 80-90 90-95 95-98 98-100

Click here for more information about this legend

04/23/20
Agriculture in the California Region

The USDA's National Agricultural Statistics Service (NASS) conducts hundreds of surveys every year and prepares reports covering virtually every aspect of U.S. agriculture, including agricultural commodities statistics for crops and livestock. This map displays shows agricultural products alongside the current U.S. Drought Monitor. Learn more.

* Currently, data is only available for the contiguous U.S.
 

County with Selected Agriculture Product

 

D0 - Abnormally Dry

 

D1 - Moderate Drought

 

D2 - Severe Drought

 

D3 - Extreme Drought

 

D4 - Exceptional Drought

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Water Supply in the California Region

The U.S. Geological Survey (USGS) produces maps of real-time streamflow conditions compared to historical conditions. The map depicts streamflow conditions as computed at USGS streamgages. The colors represent real-time streamflow compared to percentiles of historical daily streamflow for the day of the year. Click on a streamgage to view more data for that location. Learn more.

 
Low
 

Much below normal

 
Below normal
 

Normal

 
Above normal
 

Much above normal

 
High
 

Not ranked

The National Weather Service (NWS) Climate Prediction Center (CPC) produces precipitation outlooks for the U.S., including 6-10 day, 8-14 day, monthly, and seasonal outlooks. This 1-month outlook depicts whether there is a greater chance for above-normal, below-normal, or near-normal precipitation conditions in this region. Learn more.

Probability of Below-Normal Precipitation

The color with the hex code #f0d493 identifies:
> 33%
The color with the hex code #d8a750 identifies:
> 40%
The color with the hex code #bb6d33 identifies:
> 50%
The color with the hex code #9b5031 identifies:
> 60%
The color with the hex code #934639 identifies:
> 70%
The color with the hex code #804000 identifies:
> 80%
The color with the hex code #4f2f2f identifies:
> 90%

Probability of Above-Normal Precipitation

The color with the hex code #b3d9ab identifies:
> 33%
The color with the hex code #94cd7e identifies:
> 40%
The color with the hex code #48ae38 identifies:
> 50%
The color with the hex code #3a7b5f identifies:
> 60%
The color with the hex code #008e40 identifies:
> 70%
The color with the hex code #28553d identifies:
> 80%
The color with the hex code #285517 identifies:
> 90%

U.S. Drought Monitor

The color with the hex code #ffff00 identifies:
D0
The color with the hex code #ffcc99 identifies:
D1
The color with the hex code #ff6600 identifies:
D2
The color with the hex code #ff0000 identifies:
D3
The color with the hex code #660000 identifies:
D4
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{{WS_STAT_3}}
{{WS_DESC_3}}
{{WS_STAT_4}}
{{WS_DESC_4}}
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