A very warm and wet atmospheric river approached the west coast of the CONUS on the 5th, which brought gusty winds and significant rains to the Sierra and eastern California the 6th through the 7th. Rainfall totals during this event ranged from 1 to 2 inches in much of northeast California and the lower elevations of the northern Sierra.
Every event with a place to put it. Tap one for its entry below.
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.
The episode as NWS REV wrote it up.
A very warm and wet atmospheric river approached the west coast of the CONUS on the 5th, which brought gusty winds and significant rains to the Sierra and eastern California the 6th through the 7th. Rainfall totals during this event ranged from 1 to 2 inches in much of northeast California and the lower elevations of the northern Sierra. In the higher elevations, up to 4 inches of rain was reported. In Mono County, liquid totals were mainly less than two-thirds of an inch in the valleys, but the higher elevations of the Sierra saw from 1.50 inches to as much as 3 inches.
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 Reno, NV wrote its last area forecast discussion before the first event at Apr 5, 2:18 PM PST, 14 hours 37 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
29 heavy rain. Local standard time, as filed.
ASOS TRK, Truckee Airport (elevation 5899 feet) reported 1.12 inches of rainfall in a 24 hour period from 6 April 0455PST to 7 April 0455PST.
Mesonet station HLKC1, 13 miles south-southwest of Ravendale (5100 feet) reported 1.07 inches of rainfall in a 24 hour period from 6 April 0640PST to 7 April 0640PST.
Mesonet station DOGC1, Dog Valley (elevation 5976 feet) reported 0.90 inches of rainfall in a 24 hour period from 6 April 0649PST to 7 April 0649PST.
Mesonet station DNRC1, Donner Lake (elevation 5924 feet) reported 2.80 inches of rainfall in a 24 hour period from 6 April 0700PST to 7 April 0700PST.
CoCoRaHS station CA-LS-2, 3 miles south-southwest of Susanville reported 1.12 inches of rainfall in a 24 hour period from 6 April 0700PST to 7 April 0700PST.
Mesonet station CEDC, 3 miles north of Cedarville (elevation 4600 feet) reported 0.79 inches of rainfall in a 24 hour period from 6 April 0700PST to 7 April 0700PST.
COOP observer station PRAC1, Portola reported 0.84 inches of rainfall in a 24 hour period from 6 April 0700PST to 7 April 0700PST.
Mesonet station DVSC1, Lake Davis (elevation 5768 feet) reported 1.32 inches of rainfall in a 24 hour period from 6 April 0700PST to 7 April 0700PST.
COOP observer station SERC1, Sierraville Ranger Station reported 1.29 inches of rainfall in a 24 hour period from 6 April 0700PST to 7 April 0700PST.
Mesonet station D5697, 3 miles east-southeast of Honey Lake (elevation 4259 feet) reported 1.56 inches of rainfall in a 24 hour period from 6 April 0709PST to 7 April 0709PST.
Mesonet station D9436, 1 mile southwest of Sierraville (elevation 5100 feet) reported 1.75 inches of rainfall in a 24 hour period from 6 April 0711PST to 7 April 0711PST.
Mesonet station AT488, 2 miles west of Westwood (elevation 4944 feet) reported 1.86 inches of rainfall in a 24 hour period from 6 April 0713PST to 7 April 0713PST.
Mesonet station D9019, Squaw Valley (elevation 6217 feet) reported 2.03 inches of rainfall in a 24 hour period from 6 April 0713PST to 7 April 0713PST.
Mesonet station WRDC1, 2 miles south of Alpine Meadows (elevation 6764 feet) reported 3.40 inches of rainfall in a 24 hour period from 6 April 0800PST to 7 April 0800PST.
Mesonet station FDCC1, 1 mile east-southeast of Carson Pass (elevation of 8013 feet) reported 2.40 inches of rainfall in a 24 hour period from 6 April 0800PST to 7 April 0800PST.
Mesonet station FLFC1, 2 miles southeast of Emerald Bay (elevation 6241 feet) reported 1.90 inches of rainfall in a 24 hour period from 6 April 0800PST to 7 April 0800PST.
Mesonet station ECOC1, Echo Peak (elevation 7652 feet) reported 4.40 inches of rainfall in a 24 hour period from 6 April 0900PST to 7 April 0900PST.
Mesonet station SRAC1, Sonora Pass (elevation 8772 feet) reported 2.30 inches of rainfall in a 24 hour period from 6 April 0900PST to 7 April 0900PST.
Mesonet station LVTC1, Leavitt Meadows (elevation 7197 feet) reported 1.60 inches of rainfall during a 24 hour time period from 6 April 0900PST to 7 April 0900PST.
Mesonet station JMWC1, June Mountain (elevation 9148 feet) measured 1.18 inches of rainfall during a 24 hour period from 6 April 1000PST to 7 April 1000PST.
Mesonet station KRKC1, 6 miles west-southwest of Antelope Lake (elevation 7297 feet) reported 1.84 inches of rainfall in a 24 hour period from 6 April 1000PST to 7 April 1000PST.
Mesonet station D5868, 1 mile southwest of Mammoth Lakes (elevation 8012 feet) reported 2.04 inches of rainfall in a 24 hour period from 6 April 1019PST to 7 April 1019PST.
Trained weather spotter 2 miles northwest of Meyers measured 2.25 inches of rainfall over a 24 hour period from 6 April 1037PST to 7 April 1037PST.
Trained weather spotter 6 miles south-southeast of Susanville measured 1.61 inches of rainfall in a 24 hour period from 6 April 1043PST to 7 April 1043PST.
Trained weather spotter 1 mile north of Spaulding reported 1.01 inches of rainfall in a 24 hour period from 6 April 1044PST to 7 April 1044PST.
Trained weather spotter 1 mile north-northwest of Homewood measured 2.93 inches of rainfall in a 24 hour period from 6 April 1046PST to 7 April 1046PST.
COOP observer 1 mile south-southwest of Boca Reservoir (elevation 5589 feet) measured 0.94 inches of rainfall in a 24 hour period from 6 April 1049PST to 7 April 1049PST.
COOP observer in Tahoe City measured 1.71 inches of rainfall in a 24 hour period from 6 April 1052PST to 7 April 1052PST.
ASOS TVL, South Lake Tahoe Airport (elevation 6257 feet) reported 1.34 inches of rainfall in a 24 hour period from 6 April 0953PST to 7 April 0953PST.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2018Every state in 2018This day in weather historyWarnings in California, April 2018
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 2026-10-01. Each event’s entry at NCEI: 754031, 754002, 754092, 753959, 754001, 754004, 754089, 754090, 754094, 754000, 754093, 753998, 754036, 753952, 753994, 753996, 753938, 754005, 754007, 754008, 754091, 754006, 753995, 753999, 754003, 753954, 754032, 754060, 753997.