California, 2021

Drought in California, July 1 to 31, 2021

July 1 to 31, 2021 · NWS STO · 12 events in 12 counties and zones

Northern California typically experiences a wet season, October through May, and a dry season May through September. Last year's water year, October 2019 through September 2020, was one of the driest on records.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
12

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS STO wrote it up.

Northern California typically experiences a wet season, October through May, and a dry season May through September. Last year's water year, October 2019 through September 2020, was one of the driest on records. This likely contributed to the U.S. Drought Monitor's decision to place portions of interior northern California into extreme drought on September 29, 2020. Portions of Shasta, Tehama, Butte, Glenn, Colusa, Yolo, Solano, Yuba, Nevada, and Sacramento counties remain in extreme drought. The rest of interior northern California was placed into severe drought (D2) on December 8; however, the state of California has not announced that these locations are in drought. On 4/21/2021 the Biden-Harris administration announced the formation of an Interagency Working Group to address worsening drought conditions in the West. On 5/10/2021 Governor Gavin Newsom significantly expanded his April 21 drought emergency proclamation to include Klamath River, Sacramento-San Joaquin Delta and Tulare Lake Watershed counties where accelerated action is needed to protect public health, safety and the environment. In total, 41 counties are now under a drought state of emergency, representing 30 percent of the state’s population. By late June more wildlife was observed in urban interfaces than normal, notably bears and rattlesnakes, in search of wetter, cooler conditions.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Sacramento, CA wrote its last area forecast discussion before the first event at Jun 30, 1:21 PM PST, 10 hours 39 minutes earlier.

Area forecast discussion, Jun 30, 1:21 PM PST, 10 hours 39 minutes before
Area Forecast Discussion
National Weather Service Sacramento CA
221 PM PDT Wed Jun 30 2021

.SYNOPSIS...
Isolated mountain thunderstorms near the Sierra Crest and east of
the Crest each afternoon and evening into the weekend. Otherwise
quiet and warm.

&&

.DISCUSSION...
Visible satellite this afternoon is showing mostly clear skies
across interior Northern California except for cumulus building
over the mountains. A trough moving trough the Pacific NW has
broken down the high pressure ridge over northern California
today and is bringing an increase in onshore flow. Temperatures
will moderate across the region through the weekend compared to
temperatures seen earlier this week, especially in the southern
Sacramento Valley and northern San Joaquin Valley. However,
warmer than normal temperatures are forecast to continue for
areas generally north of Interstate 80 since the onshore flow will
not reach those areas as well. Periods of slightly gusty winds
are expected in the afternoons and evenings, especially in the
Delta region.

The monsoon high continues to build over the Desert SW through the
weekend. This will bring moisture over the Sierra, causing a
chance of isolated thunderstorms every afternoon and evening. For
the most part, the forcing remains over the high Sierra with
little chance of thunderstorms making it to the lower elevations.
Best chance today remains south of Interstate 80 with coverage
potentially spreading north Friday and Saturday. However,
thunderstorms are mostly expected to remain near and east of the
crest. Some precipitation is expected in the core of the
thunderstorms with PWATS of 0.5 to 1 inch forecast. However, can't
rule out the potential for fire starts due to lightning,
especially if lightning strikes outside of the core. -HEC

&&

.EXTENDED DISCUSSION (Sunday THROUGH Wednesday)...

Ensembles favor a weak trough developing along the West Coast
early next week. Thunderstorm chances expected to continue Sunday
along the northern Sierra crest, then the thunderstorm threat is
expected to shift east as drier (more stable) mid/upper level
airmass moves in with southwesterly flow aloft. Near normal highs
are expected in Delta influenced areas with highs around 5-10
degrees above average for areas further inland.
&&

.AVIATION...

VFR conditions over NorCal during the next 24 hours. A few gusts
to 30 mph possible through the Delta at times.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
None.
&&

Event by event

12 drought. Local standard time, as filed.

Drought, Shasta Lake/North Shasta County

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Shasta Lake/North Shasta County forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor did not make changes to Zone 13 which covers northwestern Shasta County. The majority of zone 13 was in exceptional drought (D4) with the remaining areas of Zone 13 in extreme drought (D3). They continue to mention that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season given the rapid spread and community impacts from the Salt Fire that started near Lakehead, CA. Drought preparedness is a top priority given back-to-back dry years. All of Zone 13 is in the official drought emergency proclamation. The countywide drought emergency declared by the Shasta County Board of Supervisors in June continues, including the water conservation program. As of July 1st, fire restrictions on public lands were put in place until further notice. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. Concern was noted that nearly all endangered winter-run Chinook salmon could perish this fall. Region wide water theft has also been reported.

Drought, Burney Basin/Eastern Shasta County

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Burney Basin/Eastern Shasta County forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor continued to have zone 14 in both extreme and exceptional drought (D3 and D4) with some expansion of D4 in the southwestern part of the Zone which covers northeast Shasta County. They mentioned that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. All of zone 14 is in the official drought emergency proclamation. The countywide drought emergency declared by the Shasta County Board of Supervisors in June continues, including the water conservation program. On July 1st, fire restrictions on public lands were put in place until further notice. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. Region-wide water theft has also been reported.

Drought, Northern Sacramento Valley

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Northern Sacramento Valley forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor kept all of zone 15, which includes portions of Shasta and Tehama counties, in exceptional drought (D4). They continue to mention that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. Some of the impacts the region saw included: reduced forage, decreased stock weights, selling of livestock, livestock stress, reduced grazing on public lands, reduced market price for cattle, and increased pricing for small grain and hay crops. The area also saw: decreased water allocation, hauling of water, increased groundwater use, land subsidence, low to dry rivers/ponds/springs, dry wells, and installation of new wells. All of zone 15 is in the official drought emergency proclamation. The countywide drought emergency declared by the Shasta County Board of Supervisors in June continues, including the water conservation program. As of July 1st, fire restrictions on public lands were put in place until further notice. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. On July 14th the Tehama County Board of Supervisors approved an emergency resolution Tuesday that would allow residents with dry wells to purchase water directly from the county. Farmers planted about 100,000 fewer acres of rice in the Sacramento Valley, leading to less food and increased potential for disease for birds migrating through the Pacific Flyway. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. Concern was noted that nearly all endangered winter-run Chinook salmon could perish this fall. Region wide water theft has also been reported. Drought has also reduced California’s almond harvest by 13%.

Drought, Central Sacramento Valley

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Central Sacramento Valley forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor continued to have all of zone 16 in exceptional drought (D4). They continue to mention that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. Some of the impacts to the region included: continued removal of houseboats from Lake Oroville, reduced forage, decreased water allocation, decreased stock weights, selling of livestock, completely dry wells, hauling water, and low to dry rivers/ponds/springs. All of zone 16 is in the official drought emergency proclamation. On July 1st, fire restrictions on public lands were put in place until further notice. On July 1st the Nevada Irrigation District approved a mandatory 20 percent water-use reduction for both raw and treated water customers. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. Starting on July 12th Glenn County will be hosting a series of bottled water distribution events for residents impacted by dry wells. On July 21st a 45-day moratorium on agricultural well drilling was unanimously approved in Glenn County as domestic wells went dry. On July 21st Butte county declared a drought emergency in the county. By July 23rd The Office of Emergency Services reported 117 dry wells, 75% of which were family homes. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. Concern was noted that nearly all endangered winter-run Chinook salmon could perish this fall. Region-wide water theft has also been reported. By July 23rd, all paved boat ramps on Lake Oroville were closed due to low water levels. Concern that the hydro electric power plant on Lake Oroville may also be shut down due to the low lake levels was also noted. Drought has also reduced California’s almond harvest by 13%. Farmers planted about 100,000 fewer acres of rice in the Sacramento Valley, leading to less food and increased potential for disease for birds migrating through the Pacific Flyway. Ranchers are also seeing 10-25% reduction in herds due to feed shortages.

Drought, Southern Sacramento Valley

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Southern Sacramento Valley forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor continued to have all of zone 17, which includes portions Yolo, Solano, Sutter, and Sacramento County in exceptional drought (D4). They continue to mention that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. The area saw: reduced forage, decreased water allocation, decreased stock weights, selling of livestock, hauling of water, low rivers/ponds/springs, and installation of new wells. All of zone 17 is in the official drought emergency proclamation. On July 1st the Nevada Irrigation District approved a mandatory 20 percent water-use reduction for both raw and treated water customers. On July 7th, the city of Sacramento asked residents and businesses to voluntarily reduce their water use by 10 percent. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. On July 28th a local drought emergency has been proclaimed in Yolo County after one-fifth of the county’s wells reached an all-time low. Concern was noted that nearly all endangered winter-run Chinook salmon could perish this fall. Region-wide water theft has also been reported. Drought has also reduced California’s almond harvest by 13%. Farmers planted about 100,000 fewer acres of rice in the Sacramento Valley, leading to less food and increased potential for disease for birds migrating through the Pacific Flyway. Ranchers are seeing 10-25% reduction in herds due to feed shortages. The waters of Folsom Lake receded low enough to reveal Mormon Island, a Gold Rush village, settled in the 1840s by prospectors.

Drought, Carquinez Strait and Delta

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Carquinez Strait and Delta forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor kept all of zone 18 in exceptional drought (D4). They continue to mention that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. Farmers north and south of the Sacramento-San Joaquin River Delta will continue to receive no water from the Central Valley Project. All of zone 18 is in the official drought emergency proclamation. The Delta cross channel gates remain closed. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. Concern was noted that nearly all endangered winter-run Chinook salmon could perish this fall. Region-wide water theft has also been reported. Drought has also reduced California’s almond harvest by 13%. Farmers planted about 100,000 fewer acres of rice in the Sacramento Valley, leading to less food and increased potential for disease for birds migrating through the Pacific Flyway. Ranchers are seeing 10-25% reduction in herds due to feed shortages.

Drought, Northern San Joaquin Valley

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Northern San Joaquin Valley forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor put the majority of Zone 19 in exceptional drought (D4) with only a small portion of the far southwestern part of Stanislaus County of Zone 19 in extreme drought (D3). They continue to mention that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. All of zone 19 is in the official drought emergency proclamation. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. On July 23rd farmers reported plowing under wheat crop due to no water access. Ranchers are seeing 10-25% reduction in herds due to feed shortages. Region-wide water theft has also been reported. Drought has also reduced California’s almond harvest by 13%.

Drought, Mountains Southwestern Shasta County to Western Colusa County

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Mountains Southwestern Shasta County to Western Colusa County forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor continued exceptional drought (D4) for roughly half of zone 63, which covers western Tehama, Glenn, and Colusa counties, and increased all of the remaining portion of the Zone to extreme drought (D3). They continue to mention that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. All of zone 63 is in the official drought emergency proclamation. The countywide drought emergency declared by the Shasta County Board of Supervisors in June continues, including the water conservation program. On July 1st, fire restrictions on public lands were put in place until further notice. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. Starting on July 12th Glenn County will be hosting a series of bottled water distribution events for residents impacted by dry wells. On July 21st a 45-day moratorium on agricultural well drilling was unanimously approved in Glenn County as domestic wells went dry. On July 14th the Tehama County Board of Supervisors approved an emergency resolution Tuesday that would allow residents with dry wells to purchase water directly from the county. Region-wide water theft has also been reported. Ranchers also reported a 10-25% reduction in herds due to feed shortages.

Drought, Northeast Foothills/Sacramento Valley

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Northeast Foothills/Sacramento Valley forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor placed all of Zone 66 in exceptional drought (D4), which covers the northeast foothills and portions of the Sacramento Valley. They mentioned that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. All of zone 66 is in the official drought emergency proclamation. The countywide drought emergency declared by the Shasta County Board of Supervisors in June continues, including the water conservation program. On July 1st, fire restrictions on public lands were put in place until further notice. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. On July 14th the Tehama County Board of Supervisors approved an emergency resolution Tuesday that would allow residents with dry wells to purchase water directly from the county. On July 21st Butte county declared a drought emergency in the county. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. Region-wide water theft has also been reported. Ranchers are seeing 10-25% reduction in herds due to feed shortages.

Drought, Motherlode/Camptonville to Groveland

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Motherlode/Camptonville to Groveland forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor placed all of Zone 67 in exceptional drought (D4), which covers the Motherlode. They mentioned that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. The area continued to see: reduced forage, decreased water allocation, decreased stock weights, and hauling of water. All of zone 67 is in the official drought emergency proclamation. On July 1st the Nevada Irrigation District approved a mandatory 20 percent water-use reduction for both raw and treated water customers. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. Region-wide water theft has also been reported.

Drought, Mt Shasta/Western Plumas County

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
Mt Shasta/Western Plumas County forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor included most of Zone 68 in exceptional drought with includes the eastern portions of Tehama, Butte and Shasta counties (Lassen National Park) and western Plumas County. Extreme drought (D3) continued for the remainder of Zone 68, which covers west central Plumas County. They mentioned that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. All of zone 68 is in the official drought emergency proclamation. The countywide drought emergency declared by the Shasta County Board of Supervisors in June continues, including the water conservation program. On July 1st the Nevada Irrigation District approved a mandatory 20 percent water-use reduction for both raw and treated water customers. As of July 1st, fire restrictions on public lands were put in place until further notice. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. On July 14th the Tehama County Board of Supervisors approved an emergency resolution Tuesday that would allow residents with dry wells to purchase water directly from the county. On July 21st Butte county declared a drought emergency in the county. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. Region-wide water theft has also been reported.

Drought, West Slope Northern Sierra Nevada

When
July 1, 12:00 AM PST to July 31, 11:59 PM PST
Where
West Slope Northern Sierra Nevada forecast zone
Reported by
Drought Monitor

For the month of July, the U.S. Drought Monitor placed roughly half of zone 69 in exceptional drought (D4), which covers the upper foothills into the west slope of the Sierra Nevada. The higher elevations of the eastern portions of the continued remained in extreme drought (D3). They mentioned that we will see drought impacts expand into the summer, including but not limited too: agriculture, water supplies, recreation, and ecosystems. They also noted concern for the wildfire season and that drought preparedness is key given back-to-back dry years. All of zone 69 is in the official drought emergency proclamation. On July 1st, fire restrictions on public lands were put in place until further notice. On July 8th, the Governor of California asked for all Californian's including businesses, to voluntarily reduce water usage by 15%. On July 23rd, the State Water Resources Control Board released an emergency curtailment order that would deprive thousands of farmers of the use of rivers and streams in the Sacramento river watershed that would likely go into effect in August. Region-wide water theft has also been reported.

What these are

Drought
A drought reaching severe (D2) or worse on the US Drought Monitor, or with notable impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in California in 2021Every state in 2021This day in weather historyWarnings in California, July 2021

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 971517, 971519, 971520, 971521, 971522, 971523, 971524, 971525, 971526, 971527, 971528, 971529.