Weather Service Report


446 
AXUS76 KHNX 121635
DGTHNX
CAC019-029-031-039-043-047-107-109-191645-

Drought Information Statement
National Weather Service Hanford CA
835 AM PST Thu Jan 12 2023

...MUCH OF INLAND CENTRAL CALIFORNIA REMAINS IN DROUGHT BUT
HAS SHOWN IMPROVEMENT...

.SYNOPSIS AND IMPACTS...

The California Drought Monitor, released January 12, 2023 showed
the improvement to severe drought (D2) for much of the region,
except a portion of the Sierra Nevada, or mainly Yosemite to
Tulare County has improved to moderate drought (D1). Most areas
also improved by one category during the previous week. This is
due to well above average precipitation that has accumulated
since December 27, 2022. Sierra Nevada snowpack in our portion
of Central California is around 220 percent of normal for this
time of year, per the latest snowpack survey conducted by the
California Department of Water Resources. Otherwise, the
desert portion of Kern County remains in D2 status.

While well above average precipitation and near to below average
temperatures have occurred since December, the drought continues
across much of the central California interior at this time.
Precipitation deficits remain in much of the region, including
observed precipitation during 2022 compared to the annual average
precipitation, as well as precipitation for the last two to three
years.

Water allocations for many local farmers remain at zero percent.
In addition, applications for grants for well drilling, 
purchasing tanks, and bottled water recipients continue to 
increase in much of the affected areas. The lack of precipitation 
has led to extremely dry soils, except for those areas that 
received above average precipitation since the summer. Lastly, 
current water levels have shown some improvement due to recent 
increases in runoff, but are still well below average for this 
time of year at most major reservoirs in our service area.

.CLIMATE SUMMARY (from October 1, 2022 until January 11, 2023)...

AIRPORT    ACTUAL RAINFALL    NORMAL RAINFALL     % OF NORMAL
----------------------------------------------------------------

Merced       10.81              4.42               245%

Madera       4.10               3.93               104%

Hanford      6.06               3.09           196%

Fresno       8.25               4.03               205%

Bakersfield  3.53               2.33               152%

All of the above climate stations at select airports in the San 
Joaquin Valley recorded well above normal rainfall since 
December 2022. Precipitation deficits over the last two to
three years remain quite high over the Sierra Nevada, despite
the anomalously high precipitation during recent weeks. Thus,
the moderate (D1) to severe (D2) drought conditions continue.

.HYDROLOGICAL OUTLOOK...

The Climate Predictions Centers outlook for January-February-
March (JFM) 2023 shows an equal chance of above average or below
average precipitation. The temperature outlook shows a tilt in
the odds towards above average. For February-March-April (FMA)
2023, there is an equal chance of above, below, or near average
temperatures and precipitation.

NOAA's Climate Prediction Center indicated that the cool phase of
ENSO, or La Nina, conditions continue over the equatorial regions
of the Pacific Ocean. Also, latest forecasts show that La Nina 
will likely continue during the remainder of this month. ENSO
neutral conditions are likely to soon develop, or by the
February-March-April (FMA) period of 2023. A La Nina is
characterized by below average sea surface temperatures over the
equatorial regions of the central and eastern Pacific Ocean,
while ENSO neutral conditions are basically associated with near
average sea surface temperatures in these regions of the Pacific
Ocean.

Monthly Drought Information Statements will resume if any
location returns to the D3 (Extreme Drought) classification.

.RELATED WEB SITES...

Additional information on current drought conditions may be found
at the following web addresses:
 
US Drought Monitor: https://droughtmonitor.unl.edu
US Drought Information System: https://www.drought.gov
NOAA Drought Page: https://www.cpc.ncep.noaa.gov/products/Drought
Northeast Regional Climate Center: http://www.nrcc.cornell.edu
New York State Climate Office: http://nysc.eas.cornell.edu

Additional water and river information:
 
NWS: https://water.weather.gov 
OWP: https://water.noaa.gov 
US Geological Survey (USGS): https://water.usgs.gov
US Army Corps of Engineers (USACE): https://www.usace.army.mil

.ACKNOWLEDGMENTS...

The Drought Monitor is a multi-agency effort involving the
National Weather Service and National Centers for Environmental 
Information, the USDA, state and regional center climatologists 
and the National Drought Mitigation Center. Information for this 
statement has been gathered from NWS and FAA observation sites, 
state cooperative extension services, the USDA, USACE and USGS.

Questions and comments: Please refer all questions to
w-hnx.webmaster@noaa.gov

.NEXT ISSUANCE DATE...

This will be the final monthly Drought Information Statement
issued, as our forecast area is no longer in a D3 (Extreme
Drought) or D4 (Exceptional Drought) classification. Normally
this statement is updated on the third Thursday of the month,
or more often as conditions change, during episodes of D3 or D4.

$$

BSO/AB/BS

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Western Regional Climate Center, wrcc@dri.edu