D2 and D3 expanded in northern California and parts of southern Oregon, with D2 spreading along coastal Oregon up to Lake County where precipitation deficits and low streamflows were most significant. D4 expanded further in the San Francisco Bay area and across all of Monterey County. In California, the city of San Diego was proposing a water supply “level 1” status, and a small reservoir/water district in Riverside County was on the 30-90 day “watch” list for depleted supplies. The San Antonio Reservoir has been essentially dry through the entire winter and Nacimiento Reservoir was at 22% capacity. The City of Montague risks running out of drinking water by the end of summer and has requested that all outside watering be curtailed until further notice; this is the first time in over 80 years of water deliveries from the Montague Water Conservation District (MWCD) that this situation has occurred. Growers in Shasta Valley with the primary irrigation district (MWCD) were expected to have only enough irrigation water to irrigate what would equate to a single irrigation on about half of their acreage. Many growers in the Big Springs area have already started pumping water to irrigate field. Within 24 hours of when one grower started irrigating, two nearby domestic wells went dry. The frustration caused by the drought can be seen in a report by an observer in Siskiyou County: “Our snow pack is pathetic, rainfall is way below normal, (low) stream flows are running at 2-3 months ahead of normal depending on the area, well levels have dropped severely and many wells are dry in spring or have levels typical of late fall, surface water irrigation supplies are non-existent to extremely limited in many areas, and the situation is only getting worse daily (especially after 3 consecutive years of drought).” With the expansion of D1 across southeast California and southwest Arizona, this week marks the first time in the 15-year history of the USDM that 100% of California was in moderate to exceptional drought.