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By Location | County

Drought Conditions for Orange County

Get notified when conditions change
0

people in Orange County are affected by drought

same
No change
since last week
same
No change
since last month
0%

of people in Orange County are affected by drought

same
No change
since last week
same
No change
since last month
6th

driest February was in 2021, over the past 127 years

same
2.91
same
inches from normal
24th

driest year to date in 127 years occured in 2021

same
4.03
same
inches from normal
Current Conditions for Orange County

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.

D0 - Abnormally Dry

  • Soil is dry; irrigation delivery begins early
  • Dryland crop germination is stunted
  • Active fire season begins

0
of Orange County
(D0-D4)
D1 - Moderate Drought

  • Dryland pasture growth is stunted; producers give supplemental feed to cattle
  • Landscaping and gardens need irrigation earlier; wildlife patterns begin to change
  • Stock ponds and creeks are lower than usual

0
of Orange County
(D1-D4)
D2 - Severe Drought

  • Grazing land is inadequate
  • Fire season is longer, with high burn intensity, dry fuels, and large fire spatial extent
  • Trees are stressed; plants increase reproductive mechanisms; wildlife diseases increase

0
of Orange County
(D2-D4)
D3 - Extreme Drought

  • Livestock need expensive supplemental feed; cattle and horses are sold; little pasture remains; fruit trees bud early; producers begin irrigating in the winter
  • Fire season lasts year-round; fires occur in typically wet parts of state; burn bans are implemented
  • Water is inadequate for agriculture, wildlife, and urban needs; reservoirs are extremely low; hydropower is restricted

0
of Orange County
(D3-D4)
D4 - Exceptional Drought

  • Fields are left fallow; orchards are removed; vegetable yields are low; honey harvest is small
  • Fire season is very costly; number of fires and area burned are extensive
  • Fish rescue and relocation begins; pine beetle infestation occurs; forest mortality is high; wetlands dry up; survival of native plants and animals is low; fewer wildflowers bloom; wildlife death is widespread; algae blooms appear

0
of Orange County
(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

01/27/20
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

01/27/20
Agriculture in Orange County

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

Source(s):
0
None in Orange County
0
None in Orange County
105
number of cattle in Orange County
370
acres of corn in Orange County
31
number of hogs in Orange County
Water Supply in Orange County

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
Source(s):
65
percent of streamflow sites that are below normal in California
0
percent area with above normal precipitation probability
4
percent of streamflow sites that are above normal in California
0
percent area with below normal precipitation probability
Public Health in Orange County

This map shows the Center for Disease Control and Prevention's (CDC's) Social Vulnerability Index alongside current U.S. Drought Monitor drought designations. CDC's Social Vulnerability Index uses 15 U.S. census variables at tract level (including poverty, lack of vehicle access, and crowded housing) to help local officials identify communities that may need support in preparing for or recovering from hazards, like drought. Learn more.

 
0.7501 - 1 | Highest Vulnerability
 

0.5001 - 0.75

 
0.2501 - 0.5
 

0 - 0.25 | Lowest Vulnerability

 
Data Unavailable

This map shows active National Weather Service (NWS) Excessive Heat Watches, Heat Advisories, and Excessive Heat Warnings alongside current U.S. Drought Monitor drought designations.

 
Excessive Heat Warning
 

Heat Advisory

 
Excessive Heat Watch

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
No Wildfire
in Orange
0.44
Social Vulnerability Index Score
No
Heat Warnings issued by the National Weather Service
No
Air Quality Warning issued by the National Weather Service
Future Conditions for Orange County
Evaporative Demand (EDDI)
EXPERIMENTAL

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. Learn more.

ED4 ED3 ED2 ED1 ED0         EW0 EW1 EW2 EW3 EW4
100% 98% 95% 90% 80% 70% 30% 20% 10% 5% 2%
* Currently, data is only available for the contiguous U.S.
Source(s):
01/27/20
CPC Outlooks

NOAA's Climate Prediction Center issues Monthly and Seasonal Drought Outlooks each month. The Monthly Drought Outlook predicts whether drought will emerge, stay the same, or get better over the next 30 days or so, while the Seasonal Drought Outlook predicts whether drought will emerge, stay the same, or get better in the next three months.

       
Drought persists Drought remains but improves Drought removal likely Drought development likely
Source(s):
CPC
01/27/20
Historical Conditions for Orange County

    The U.S. Drought Monitor (USDM) is a national map released every Thursday, showing parts of the U.S. that are in drought. The USDM relies on drought experts to synthesize the best available data and work with local observers to interpret the information. The USDM also incorporates ground truthing and information about how drought is affecting people, via a network of more than 450 observers across the country, including state climatologists, National Weather Service staff, Extension agents, and hydrologists. Learn more.

    The Standardized Precipitation Index (SPI) is an index to characterize meteorological drought on a range of timescales, ranging from 1 to 72 months. The SPI is the number of standard deviations that observed cumulative precipitation deviates from the climatological average. NOAA's National Centers for Environmental Information produce the 9-month SPI values below on a monthly basis, going back to 1895. Learn more.

    Tree-rings are used to extend the instrumental record of drought to over 2000 years. The Living Blended Drought Product (LBDP) is a recalibrated data series of June-July-August Palmer Modified Drought Index (PMDI) values in the lower 48 U.S. states. This dataset blends tree-ring reconstructions and instrumental data to estimate the average summer PMDI values, which extend over 2000 years in some parts of the U.S. Learn more.