Alert archive / California / River Flood Warnings in 2018
River Flood Warning 2, NWS Reno, NV
NWS Reno, NV issued this river flood warning at Apr 3, 2018, 9:49 AM PDT for Nevada County, Placer County, California. It took effect at Apr 6, 2018, 3:01 PM PDT. It was in force for 42 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 3, 2018, 9:49 AM PDT (16:49 UTC)
- In effect from
- Apr 6, 2018, 3:01 PM PDT
- Expired
- Apr 8, 2018, 9:19 AM PDT
- In force
- 42 hr
- Issued by
- NWS Reno, NV
- Area
- Storm-based polygon
- Flood severity
- Moderate
Counties Nevada County, CA, Placer County, CA
The radar
The Reno radar (KRGX), 81 km from the middle of the area, began a volume at 16:49 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Truckee River near Truckee (TRCC1). The gauge peaked at 5.32 ft at Apr 7, 2018, 10:00 AM PDT.
- Action stage
- 4.5 ft
- Minor stage
- 5.5 ft
- Moderate stage
- 6.5 ft
- Major stage
- 7.5 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 10338000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted.
482 WGUS45 KREV 031649 FLWREV Flood Warning National Weather Service Reno NV 949 AM PDT Tue Apr 3 2018 ...The National Weather Service in Reno has issued a Flood Warning for the following rivers in California... Truckee River Near Truckee affecting Nevada and Placer Counties For the Truckee River...including Truckee...Moderate to major flooding is forecast. A strong atmospheric river will impact the Truckee River Basin Friday evening and Saturday...with several inches of precipitation likely in the high Sierra. Snow levels are expected to rise to over 9,000 feet, and possibly to around 10,000 feet, during the period of heaviest precipitation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive rainfall may also generate rock and mud slides in steep terrain. Persons living near rivers, creeks, and streams in the Sierra, northeast California, and far western Nevada should monitor the latest weather information at weather.gov/reno and be prepared to take action. PREPARE NOW by clearing drainages and ditches of debris in preparation for increased water flows. The next forecast update for this location will be issued by Wednesday morning. && CAC057-061-042249- /O.NEW.KREV.FL.W.0002.180407T0630Z-000000T0000Z/ /TRCC1.2.RS.180407T0630Z.180407T1800Z.180408T1600Z.NO/ 949 AM PDT Tue Apr 3 2018 The National Weather Service in Reno has issued a * Flood Warning for The Truckee River Near Truckee. * from late Friday evening through early Sunday morning. * At 9:00 AM Tuesday the stage was 4.0 feet. * Flood stage is 4.5 feet. * Moderate to major flooding is forecast. * Forecast...Rise above flood stage by late Friday evening and continue to rise to near 6.5 feet by late Saturday morning. * Impact...At 6.5 feet...Moderate to major flooding along the Truckee River between Squaw Creek and Truckee. About 5000 cfs. Impacts are expected to be similar to January 9, 2017. && LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019 $$
9 follow-up statements
470 WGUS85 KREV 042147 FLSREV Flood Statement National Weather Service Reno NV 247 PM PDT Wed Apr 4 2018 ...The Flood Warning continues for the following rivers in California... Truckee River Near Truckee affecting Nevada and Placer Counties For the Truckee River...including Truckee...Moderate to major flooding is forecast. A strong atmospheric river will impact the Truckee River Basin Friday evening and Saturday...with several inches of precipitation likely in the high Sierra. Snow levels are expected to rise to over 10,000 feet during the period of heaviest precipitation. This rain and snowmelt will combine with high flows due to releases out of Lake Tahoe. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive rainfall may also generate rock and mud slides in steep terrain. Persons living near rivers, creeks, and streams in the Sierra, northeast California, and far western Nevada should monitor the latest weather information at weather.gov/reno and be prepared to take action. PREPARE NOW by clearing drainages and ditches of debris and move items near the river to higher ground. The next forecast update for this location will be issued Thursday. && CAC057-061-060347- /O.CON.KREV.FL.W.0002.180407T0630Z-180408T1600Z/ /TRCC1.3.RS.180407T0630Z.180407T1800Z.180408T1600Z.NO/ 247 PM PDT Wed Apr 4 2018 The Flood Warning continues for The Truckee River Near Truckee. * from Friday evening to Sunday morning. * At 2:00 PM Wednesday the stage was 4.0 feet. * Flood stage is 4.5 feet. * Moderate to major flooding is forecast. * Forecast...Rise above flood stage by late Friday evening and continue to rise to near 6.7 feet by late Saturday morning. The river will fall below flood stage by late Sunday morning. * Impact...At 6.5 feet...Major flooding along Truckee River between Squaw Creek and Truckee. Some private bridges and low-lying structures along the river may flood. Impacts are expected to be similar to January 9, 2017. && LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019 $$
966 WGUS85 KREV 052202 FLSREV Flood Statement National Weather Service Reno NV 302 PM PDT Thu Apr 5 2018 ...The Flood Warning continues for the following rivers in California...Nevada... Truckee River Near Truckee affecting Nevada and Placer Counties Truckee River At Reno affecting Washoe County Truckee River At Vista affecting Storey and Washoe Counties For the Truckee River...Moderate to major flooding is forecast for Truckee. Minor flooding is forecast for Reno and Vista. A strong atmospheric river will impact the Truckee River Basin Friday evening and Saturday...with several inches of precipitation likely in the high Sierra. Snow levels are expected to rise to over 10,000 feet during the period of heaviest precipitation. This rain and snowmelt will combine with high flows due to releases out of Lake Tahoe. These river forecasts are based on forecast rainfall and temperature conditions at time of issuance. If actual conditions vary from these forecasts...river conditions will vary accordingly. River forecasts include current and planned reservoir releases. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive rainfall may also generate rock and mud slides in steep terrain. Persons living near rivers, creeks, and streams in far western Nevada should monitor the latest weather information at weather.gov/reno and be prepared to take action. PREPARE NOW by clearing drainages and ditches of debris and move items near the river to higher ground. The next forecast update for these locations will be issued Friday. && CAC057-061-070402- /O.EXT.KREV.FL.W.0002.180407T0630Z-180408T1800Z/ /TRCC1.3.RS.180407T0630Z.180407T1800Z.180408T1600Z.NO/ 302 PM PDT Thu Apr 5 2018 The Flood Warning continues for The Truckee River Near Truckee. * from Friday evening to Sunday morning. * At 2:00 PM Thursday the stage was 4.0 feet. * Flood stage is 4.5 feet. * Moderate to major flooding is forecast. * Forecast...Rise above flood stage by late Friday evening and continue to rise to near 6.6 feet by late Saturday morning. The river will fall below flood stage by late Sunday morning. * Impact...At 6.5 feet...Major flooding along Truckee River between Squaw Creek and Truckee. Some private bridges and low-lying structures along the river may flood. Impacts are expected to be similar to January 9, 2017. && LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019 $$ NVC031-070402- /O.EXT.KREV.FL.W.0003.180407T2100Z-180407T2300Z/ /TRRN2.1.RS.180407T2100Z.180407T2100Z.180407T2100Z.NO/ 302 PM PDT Thu Apr 5 2018 The Flood Warning continues for The Truckee River At Reno. * during Saturday afternoon. * At 2:15 PM Thursday the stage was 8.3 feet. * Flood stage is 11.0 feet. * Minor flooding is forecast. * Forecast...Rise to near flood stage of 11.0 feet by early Saturday afternoon. The river will then fall back below flood stage Saturday afternoon. * Impact...At 11.0 feet...Flood Stage...The river will be running near bankfull with minor impacts to parks, trails and low lying areas along the river from Mogul to Highway 395. Flows are expected to crest Saturday afternoon at levels similar to February 10, 2017 and significantly below January 9, 2017. && LAT...LON 3954 11996 3956 11977 3945 11976 3946 11983 3950 11996 $$ NVC029-031-070402- /O.EXT.KREV.FL.W.0004.180407T1730Z-180408T1200Z/ /VISN2.1.RS.180407T1730Z.180408T0200Z.180408T0920Z.NO/ 302 PM PDT Thu Apr 5 2018 The Flood Warning continues for The Truckee River At Vista. * from Saturday morning to late Saturday night. * At 2:20 PM Thursday the stage was 10.6 feet. * Flood stage is 15.0 feet. * Minor flooding is forecast. * Forecast...Rise above flood stage by late Saturday morning and continue to rise to near 17.7 feet by Saturday evening. The river will fall below flood stage by early Sunday morning. * Impact...At 17.5 feet...Minor flooding is expected impacting parks, trails, and agricultural areas near the river between Highway 395 and Nixon. Possible impacts to roads and buildings between Highway 395 and Vista Boulevard. Flows are expected to crest Saturday evening at levels similar to February 10, 2017 and significantly below January 9, 2017. && LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976 $$
799 WGUS45 KREV 062238 FLWREV Flood Warning National Weather Service Reno NV 338 PM PDT Fri Apr 6 2018 Truckee River Near Truckee affecting Nevada and Placer Counties Truckee River At Vista affecting Storey and Washoe Counties For the Truckee River...including Truckee...Vista... Minor flooding is occurring in Truckee with moderate flooding forecast. For Vista, minor flooding is forecast. A strong atmospheric river will continue to bring copious amounts of rain through midday Saturday, with the heaviest rainfall rates still to come overnight into Saturday morning. The forecast for peak flows has lessened due to decreased releases out of Lake Tahoe during the peak of the heaviest rainfall. As releases change out of Lake Tahoe, the stage on the Truckee will also change. Just because the river goes down, does not mean it won't go back up again. These river forecasts are based on forecast rainfall and temperature conditions at time of issuance. If actual conditions vary from these forecasts...river conditions will vary accordingly. River forecasts include current and planned reservoir releases. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive rainfall may also generate rock and mud slides in steep terrain. Persons living near rivers, creeks, and streams in far western Nevada should monitor the latest weather information at weather.gov/reno and be prepared to take action. The next forecast update for these locations will be issued overnight tonight. && CAC057-061-080438- /O.EXT.KREV.FL.W.0002.180406T2201Z-180408T1200Z/ /TRCC1.2.RS.180406T2130Z.180407T1800Z.180408T1100Z.NO/ 338 PM PDT Fri Apr 6 2018 The Flood Warning continues for The Truckee River Near Truckee. * from this afternoon to late Saturday night. * At 2:30 PM Friday the stage was 4.5 feet. * Flood stage is 4.5 feet. * Minor flooding is occurring and Moderate flooding is forecast. * Forecast...The river will continue rising to near 5.9 feet by late Saturday morning. The river will fall below flood stage early Sunday morning. * Impact...At 6.0 feet...Moderate flooding from Bear Creek in the Alpine Meadows area to Truckee...about 4200 cfs. Flooding of yards and basements of low-lying property along river...some private bridges could be impacted. && LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019 $$ NVC029-031-080438- /O.EXT.KREV.FL.W.0004.180407T2000Z-180408T0530Z/ /VISN2.1.RS.180407T2000Z.180408T0100Z.180408T0445Z.NO/ 338 PM PDT Fri Apr 6 2018 The Flood Warning continues for The Truckee River At Vista. * from Saturday afternoon to Saturday evening. * At 2:50 PM Friday the stage was 10.9 feet. * Flood stage is 15.0 feet. * Minor flooding is forecast. * Forecast...Rise above flood stage by early Saturday afternoon and continue to rise to near 16.5 feet by Saturday evening. The river will fall below flood stage by late Saturday evening. * Impact...At 16.5 feet...Minor flooding US Highway 395 to Nixon, impacting parks, trails, and agricultural areas near the river. Possible impacts to roads and buildings between Highway 395 and Vista Boulevard. This is significantly lower than the flooding in January and February of 2017. && LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976 $$
911 WGUS85 KREV 071003 FLSREV Flood Statement National Weather Service Reno NV 303 AM PDT Sat Apr 7 2018 ...The Flood Warning continues for the following rivers in California...Nevada... Middle Fork Feather River Near Portola affecting Plumas County Truckee River Near Truckee affecting Nevada and Placer Counties Truckee River At Vista affecting Storey and Washoe Counties West Fork Carson River At Woodfords affecting Alpine and Douglas Counties A strong atmospheric river will bring moderate to heavy rain in much of the Sierra, northeast California, far western Nevada today. This rain will accelerate mid- and high-elevation snowmelt in many basins and contribute to runoff. The precipitation will end late Saturday and runoff will decrease, but impacts will still be felt on the main stem rivers into Sunday. These river forecasts are based on forecast rainfall and temperature conditions at time of issuance. If actual conditions vary from these forecasts...river conditions will vary accordingly. River forecasts include current and planned reservoir releases. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be alert for heavy rain upstream of your location which could cause additional rapid rises on rivers and streams. Valuables should be moved away from areas subject to flooding. Never drive through flooded areas. Follow the directions of emergency officials. && CAC057-061-081603- /O.EXT.KREV.FL.W.0002.000000T0000Z-180409T0500Z/ /TRCC1.2.RS.180406T2130Z.180407T1800Z.180408T1100Z.NO/ 303 AM PDT Sat Apr 7 2018 The Flood Warning continues for The Truckee River Near Truckee. * until Sunday evening. * At 2:00 AM Saturday the stage was 3.9 feet. * Flood stage is 4.5 feet. * Moderate flooding is forecast. * Forecast...Rise above flood stage by early Saturday morning and continue to rise to near 6.3 feet by late Saturday morning. The river will fall below flood stage by early Sunday morning. * Impact...At 6.0 feet, moderate flooding from Bear Creek in the Alpine Meadows area to Truckee is likely. Flooding of yards and basements of low-lying homes along river can be expected with some private bridges impacted. && LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019 $$ NVC029-031-081603- /O.EXT.KREV.FL.W.0004.180407T1712Z-180409T0000Z/ /VISN2.1.RS.180407T1712Z.180408T0100Z.180408T0600Z.NO/ 303 AM PDT Sat Apr 7 2018 The Flood Warning continues for The Truckee River At Vista. * from this morning to Sunday afternoon. * At 1:35 AM Saturday the stage was 12.2 feet. * Flood stage is 15.0 feet. * Minor flooding is forecast. * Forecast...Rise above flood stage by late Saturday morning and continue to rise to near 16.9 feet by Saturday evening. The river will fall below flood stage by late Saturday evening . * Impact...At 16.5 feet, minor flooding U.S. Highway 395 to Nixon, including parks, trails, and agricultural areas near the river is likely. Possible impacts to roads and buildings between Highway 395 and Vista Boulevard. This is significantly lower than the flooding in January and February of 2017. && LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976 $$ CAC003-NVC005-081603- /O.CON.KREV.FL.W.0006.000000T0000Z-180409T0400Z/ /WOOC1.2.ER.180407T1100Z.180407T1800Z.180408T1000Z.NR/ 303 AM PDT Sat Apr 7 2018 The Flood Warning continues for The West Fork Carson River At Woodfords. * until Sunday evening. * At 1:30 AM Saturday the stage was 13.5 feet. * Flood stage is 14.0 feet. * Moderate flooding is forecast. * Forecast...Rise above flood stage by early Saturday morning and continue to rise to near 14.6 feet by late Saturday morning.the river will fall below flood stage by early Sunday morning. * Impact...At 14.5 feet, minor to moderate flooding is likely in the southwest Carson Valley between Centerville and Genoa, Nevada. Many, local roads may be flooded in this area. Minor to moderate flooding is possible in Alpine County, California near Woodfords and Paynesville. && LAT...LON 3877 11985 3900 11983 3896 11978 3881 11974 3875 11983 $$ CAC063-081603- /O.EXT.KREV.FL.W.0005.180409T0000Z-180410T0500Z/ /MFTC1.1.ER.180409T0000Z.180409T0000Z.180409T1100Z.NO/ 303 AM PDT Sat Apr 7 2018 The Flood Warning continues for The Middle Fork Feather River Near Portola. * from Sunday afternoon to Monday evening. * At 1:30 AM Saturday the stage was 4.2 feet. * Flood stage is 8.5 feet. * Minor flooding is forecast. * Forecast...The river is expected to rise to flood stage Sunday afternoon then fall below flood stage Monday morning. * Impact...At 8.5 feet, some minor lowland flooding is possible between Beckwourth and Sloat, very low lying areas near the river in Portola. && LAT...LON 3988 12071 3983 12038 3981 12039 3972 12058 3985 12072 $$
988 WGUS85 KREV 071646 FLSREV Flood Statement National Weather Service Reno NV 946 AM PDT Sat Apr 7 2018 ...The Flood Warning is cancelled for the following rivers in Nevada... Truckee River At Vista affecting Storey and Washoe Counties ...The Flood Warning continues for the following rivers in California... Truckee River Near Truckee affecting Nevada and Placer Counties Rainfall has ended across the region and with less additional rain than expected and reduced releases from Lake Tahoe, flooding is no longer anticipated on the middle and lower reaches of the Truckee River. Minor to moderate flooding is expected to continue for the upper reaches of the Truckee River in Truckee through tonight. Despite the lessened flows, the river continues to run high and fast, so caution is advised. As releases change out of Lake Tahoe, the stage on the Truckee will also change. Just because the river goes down, does not mean it won't go back up again. High flows will continue the next several days along the Truckee River. PRECAUTIONARY/PREPAREDNESS ACTIONS... These river forecasts are based on forecast rainfall and temperature conditions at time of issuance. If actual conditions vary from these forecasts...river conditions will vary accordingly. River forecasts include current and planned reservoir releases. The next forecast update for these locations will be issued at about 3 pm this afternoon. && CAC057-061-082246- /O.EXT.KREV.FL.W.0002.000000T0000Z-000000T0000Z/ /TRCC1.2.RS.180406T2130Z.180407T1800Z.000000T0000Z.NO/ 946 AM PDT Sat Apr 7 2018 The Flood Warning continues for The Truckee River Near Truckee. * until further notice. * At 9:00 AM Saturday the stage was 5.1 feet. * Flood stage is 4.5 feet. * Minor flooding is occurring and Moderate flooding is forecast. * Forecast...The river will continue rising to near 5.7 feet by late Saturday morning then begin falling. * Impact...At 5.5 feet...Moderate flooding from Bear Creek in the Alpine Meadows area to Truckee...about 3500 cfs. Flooding of yards and basements of low-lying property along river...some private bridges may be impacted. && LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019 $$ NVC029-031-071716- /O.CAN.KREV.FL.W.0004.000000T0000Z-180409T0000Z/ /VISN2.N.RS.000000T0000Z.000000T0000Z.000000T0000Z.NO/ 946 AM PDT Sat Apr 7 2018 The Flood Warning is cancelled for The Truckee River At Vista. * At 9:05 AM Saturday the stage was 11.9 feet. * Flood stage is 15.0 feet. * Forecast...The river will crest below flood stage with a value of 14.2 feet Saturday afternoon. * Impact...At 14.0 feet...Maximum safe flow from US Highway 395 in Reno to Nixon, including Truckee Meadows. Very minor flooding of meadows below East McCarran Boulevard in Sparks. Some minor backwater effects of high Truckee stages may extend south along Steamboat Creek. && LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976 $$
578 WGUS85 KREV 072215 FLSREV Flood Statement National Weather Service Reno NV 315 PM PDT Sat Apr 7 2018 ...The Flood Warning continues for the following rivers in California... Truckee River Near Truckee affecting Nevada and Placer Counties The river has crested and is beginning to recede. Additional high flows are likely as water is released from Lake Tahoe with secondary, lesser crests. The river will be above flood stage at times the next several days. PRECAUTIONARY/PREPAREDNESS ACTIONS... These river forecasts are based on forecast rainfall and temperature conditions at time of issuance. If actual conditions vary from these forecasts...river conditions will vary accordingly. River forecasts include current and planned reservoir releases. The next forecast update for these locations will be issued at about 9 pm this evening. && CAC057-061-090415- /O.CON.KREV.FL.W.0002.000000T0000Z-000000T0000Z/ /TRCC1.1.RS.180406T2130Z.180407T1700Z.000000T0000Z.NO/ 315 PM PDT Sat Apr 7 2018 The Flood Warning continues for The Truckee River Near Truckee. * until further notice. * At 2:00 PM Saturday the stage was 4.8 feet. * Flood stage is 4.5 feet. * Minor flooding is occurring and Minor flooding is forecast. * Forecast...The river will continue to fall, with lesser secondary rises likely due to releases from Lake Tahoe. * Impact...At 5.0 feet...Minor flooding from Bear Creek in the Alpine Meadows area to Truckee. Truckee River bike path between River Ranch at Alpine Meadows Road to Tahoe City flooded up to a foot deep. Minor flooding of property in low lying areas along the river. && LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019 $$
194 WGUS85 KREV 080458 FLSREV Flood Statement National Weather Service Reno NV 958 PM PDT Sat Apr 7 2018 ...The Flood Warning continues for the following rivers in California... Truckee River Near Truckee affecting Nevada and Placer Counties The river has crested and is beginning to recede. Additional high flows are likely as water is released from Lake Tahoe with secondary, lesser crests. The river will be above flood stage at times the next several days. PRECAUTIONARY/PREPAREDNESS ACTIONS... These river forecasts are based on forecast rainfall and temperature conditions at time of issuance. If actual conditions vary from these forecasts...river conditions will vary accordingly. River forecasts include current and planned reservoir releases. && CAC057-061-091058- /O.CON.KREV.FL.W.0002.000000T0000Z-000000T0000Z/ /TRCC1.1.RS.180406T2130Z.180407T1715Z.000000T0000Z.NO/ 958 PM PDT Sat Apr 7 2018 The Flood Warning continues for The Truckee River Near Truckee. * until further notice. * At 9:30 PM Saturday the stage was 4.1 feet. * Flood stage is 4.5 feet. * Minor flooding is forecast. * Forecast...The river will continue to fall into early Sunday then rise above flood stage late Sunday afternoon. The river will crest near 4.7 feet Sunday evening. * Impact...At 4.5 feet, minor flooding from Bear Creek in the Alpine Meadows area to Truckee. Truckee River bike path between the River Ranch at Alpine Meadows Road to Tahoe City begins to flood. Basements and yards of some low-lying homes along the river begin to flood. Deep Creek Campground begins to flood. && LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019 $$
733 WGUS85 KREV 080856 FLSREV Flood Statement National Weather Service Reno NV 156 AM PDT Sun Apr 8 2018 ...The Flood Warning continues for the following rivers in California... Truckee River Near Truckee affecting Nevada and Placer Counties The Truckee River above Truckee is slowly falling early this morning, but as reservoir releases are increased from Lake Tahoe, the river should rise above flood stage by late Sunday afternoon or Sunday evening. After the river rises above flood stage, it is likely to remain just above minor flood stage for several days. This is likely to create minimal flood impacts, except to the bike path and a few campgrounds in the area, and to some yards and basements very near the river. PRECAUTIONARY/PREPAREDNESS ACTIONS... These river forecasts are based on forecast rainfall and temperature conditions at time of issuance. If actual conditions vary from these forecasts...river conditions will vary accordingly. River forecasts include current and planned reservoir releases. && CAC057-061-091456- /O.CON.KREV.FL.W.0002.000000T0000Z-000000T0000Z/ /TRCC1.1.RS.180406T2130Z.180407T1715Z.000000T0000Z.NO/ 156 AM PDT Sun Apr 8 2018 The Flood Warning continues for The Truckee River Near Truckee. * until further notice. * At 1:30 AM Sunday the stage was 4.2 feet. * Flood stage is 4.5 feet. * Minor flooding is forecast. * Forecast...The river will continue to fall into early Sunday then rise above flood stage late Sunday afternoon. The river will crest near 4.7 feet Sunday evening and remain above flood stage through much of the week. * Impact...At 4.5 feet, minor flooding from Bear Creek in the Alpine Meadows area to Truckee is likely. The Truckee River bike path between the River Ranch at Alpine Meadows Road to Tahoe City begins to flood. A few basements and yards of some low-lying homes along the river may begin to flood. Deep Creek Campground begins to flood. && LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019 $$
419 WGUS85 KREV 081619 FLSREV Flood Statement National Weather Service Reno NV 919 AM PDT Sun Apr 8 2018 ...The Flood Warning is cancelled for the following rivers in California... Truckee River Near Truckee affecting Nevada and Placer Counties The currently planned reservoir releases out of Lake Tahoe are expected to keep the Truckee River near Truckee just below flood stage. Keep in mind that the river is still running very high and portions of the bike path may be impacted between River Ranch at Alpine Meadows Road to Tahoe City. If releases change, the river may exceed flood stage once again. PRECAUTIONARY/PREPAREDNESS ACTIONS... These river forecasts are based on forecast rainfall and temperature conditions at time of issuance. If actual conditions vary from these forecasts...river conditions will vary accordingly. River forecasts include current and planned reservoir releases. && CAC057-061-081649- /O.CAN.KREV.FL.W.0002.000000T0000Z-180408T1619Z/ /TRCC1.1.RS.180406T2130Z.180407T1715Z.180407T2307Z.NO/ 919 AM PDT Sun Apr 8 2018 The Flood Warning is cancelled for The Truckee River Near Truckee. * At 8:30 AM Sunday the stage was 3.9 feet. * Flood stage is 4.5 feet. * Fell below flood stage at 4:07 PM Saturday. * Forecast...The river will continue to fall to 4.2 feet by early Monday morning. * Impact...Portions of the bike path may have minor amounts of water on it between River Ranch at Alpine Meadows Road to Tahoe City. && LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019 $$
What forecasters said that day
The local office's own words before this river flood warning went out, 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 this river flood warning went out at Apr 3, 3:21 AM PDT, 6 hours 28 minutes earlier.
Area forecast discussion, Apr 3, 3:21 AM PDT, 6 hours 28 minutes before
Area Forecast Discussion National Weather Service Reno NV 321 AM PDT Tue Apr 3 2018 .SYNOPSIS... Expect dry and mild weather through mid week. A few light showers are possible north of Interstate 80 early Wednesday and again Thursday. A more vigorous Atmospheric River induced system is taking shape for late week. This system will bring a period of moderate to heavy precipitation, gusty winds, and some concerns for flooding along rivers and streams. && .SHORT TERM... Warm temperatures continue as north flow from yesterday gives way to weak ridging over the area. Expect temperatures to remain around the 70 mark for the valleys today and Wednesday before a cooling trend begins as the pattern begins to change. Sunny weather today will become more cloudy going through the week as initial moisture moves into the west coast. Normal afternoon breeziness the next few days until Thursday night when upper level winds begin to pick up. Wednesday night into Thursday there are slight chances for rain, mainly north of I-80, but likely not enough to measure until late in the week when the main event arrives. -Zach .LONG TERM...Friday and beyond... Storm is still on track to impact the region Friday-Saturday with a period of warm advection and light to moderate precipitation developing Friday, especially along the Sierra. This will be followed by increased forcing and precipitation intensity Friday night-Saturday ahead of incoming upper trough. Snow levels are still expected to remain very high for most of the precipitation event with model soundings much warmer than our last event. So hydrologic concerns remain and updates will be forthcoming later today based on the latest adjustments. Those adjustments include an increase in QPF along the Sierra from Alpine County southward into Mono County as models have shifted the moisture plume a little south from previous runs. The GFS is most pronounced with this shift, pushing a dry slot into the northern Sierra and cutting precipitation off sooner there. This scenario would lessen hydrologic impacts for the Middle Fork Feather and Truckee River while increasing them for the Carson and Walker River basins. There are still some model solutions that show impressive QPF totals across the northern areas so we are keeping QPF values across the Tahoe Basin close to where they were at yesterday (3" at the crest, 1.5-2" in the Basin and around 1" in the foothills west of Highway 395. Farther south into Alpine and Mono Counties we increased QPF rather substantially as AR will likely have a longer duration. QPF was adjusted from around 2" up to 3". For western NV, we lowered QPF a bit with amounts closer to 1/4-1/3" most areas. The cold front will push into the northern Sierra by early afternoon (sooner in some solutions) with tapering to showers of a lighter intensity. Snow levels do come down enough such that some snow accumulation is possible by late in the day especially over passes. Snowfall amounts would only be a few inches at most but could result in some chain or snow tire requirements Saturday night. This colder air will continue to push through the region Saturday afternoon with heavier precipitation tapering from north to south through Alpine and Mono Counties by late in the day. Strong gusty winds are still expected across the ridges and western NV for Saturday afternoon with guidance continuing to show impressive gradient and possible sustained winds 30+ mph. Things quiet down for Sunday and Monday with generally dry and mild conditions. Temperatures will be close to normal Sunday before warming to around 10 degrees above normal for Monday. Hohmann && .AVIATION... Aside from some low chances of rain towards the Oregon border on Wednesday, aviation conditions will remain VFR under generally light wind flow through Thursday. Winds and chances of precipitation increase Friday as a strong, wet storm system approaches the Sierra. Expect another round of strong ridge winds resulting in moderate-severe turbulence and LLWS for area terminals Friday and Saturday. Moderate to heavy rain can also be expected for Sierra terminals with lighter rain along the Sierra Front Friday into Saturday. Boyd/Hohmann && .HYDROLOGY... Recent warm temperatures combined with high sun angles have already initiated snowmelt in lower elevations. Moderate rains late Thursday through Friday will further ripen the mid-elevation snowpack as well as increase soil moisture. This will prime conditions for a highly efficient period of runoff during the higher intensity rainfall with very high snow levels expected late Friday through Saturday morning. The ability of the snowpack at different elevations and aspects to retain rain versus passing the rain through with additional snowmelt is an area of forecast uncertainty. There is high confidence in rivers and streams rising rapidly Friday evening into Saturday leading to minor to moderate flooding. While flooding is most likely along small streams, poor drainage areas, recent burn areas, mountain communities, and closed basins, flooding is also possible along main-stem rivers. Moderate flooding is likely on the Truckee River near Truckee due to a combination of heavy rain and high flows below Lake Tahoe. Minor flooding is also possible on the Truckee through Reno, the Susan, Middle Fork of the Feather and the Carson rivers. In general, flows and impacts are expected to exceed the March 22nd and Nov 18th, 2017 events, but stay significantly below the January and February 2017 events. Current river forecasts only extend 5 days, and do not cover the entire event, so check back for more details. Bardsley && .REV Watches/Warnings/Advisories... NV...None. CA...None. && For more information from the National Weather Service visit... http://weather.gov/reno
In the hours before
Special weather statement, Apr 3, 5:46 AM PDT, 4 hours 3 minutes before
Special Weather Statement National Weather Service RENO NV 546 AM PDT Tue Apr 3 2018 CAZ070>073-NVZ001>005-040100- Surprise Valley California-Lassen-Eastern Plumas- Eastern Sierra Counties-Greater Lake Tahoe Area-Mono County- Mineral and Southern Lyon Counties-Greater Reno-Carson City- Minden Area-Western Nevada Basin and Range including Pyramid Lake- Northern Washoe County- Including the cities of Cedarville, Eagleville, Fort Bidwell, Portola, Susanville, Westwood, Sierraville, Loyalton, South Lake Tahoe, Tahoe City, Truckee, Markleeville, Bridgeport, Coleville, Lee Vining, Mammoth Lakes, Hawthorne, Yerington, Smith Valley, Mina, Schurz, Stateline, Glenbrook, Incline Village, Sparks, Verdi, Gardnerville, Virginia City, Fernley, Fallon, Lovelock, Silver Springs, Nixon, Imlay, Empire, and Gerlach 546 AM PDT Tue Apr 3 2018 ...SIGNIFICANT STORM WITH GUSTY WINDS AND HEAVY RAINS FRIDAY THROUGH SUNDAY... A very warm, wet storm will bring gusty winds and heavy rains to the Sierra and western Nevada beginning on Friday and continuing through Sunday. The main concern will be the potential for flooding along creeks, streams, and rivers. What can you do now? Prepare for heavy rainfall by clearing drainages, ditches, and gutters of debris and snow the next few days. This will help to mitigate some of the flooding and runoff potential. Prepare for strong winds by securing outdoor furniture, temporary construction structures, and canopies. RAINS - Areas of moderate to heavy rain will develop Friday night and continue through late Saturday night. Snow levels will start around 10000 feet keeping the bulk of the precipitation in the form of rain. Rainfall totals between 2 to 4 inches along the crest, 1 to 2 inches in the Tahoe Basin, and up to 1.5 inches will be possible in the foothills. Although less than an inch is generally expected in lower western Nevada valleys, plan on impacts. Rises on small creeks and streams are expected Friday night as well as ponding in low lying areas and street intersections. Areas that experienced enhanced runoff or flooding during the last storm a couple of weeks ago should plan on similar or greater impacts due to the heavy rain and the expected contribution of the melting snow pack. Mainstem rivers will also experience increased flows by Saturday, especially the middle fork of the Feather, Carson, Susan, and the Truckee. For more details on mainstem river forecasts check www.cnrfc.noaa.gov or read the hydrology section of the area forecast discussion. WINDS - Significant impacts are likely for high profile vehicles, boaters, and aviation due to the strong winds on Saturday. Widespread wind gusts of 40 to 50 mph are possible with stronger wind gusts in wind prone locations and along ridgelines. SNOW - Very heavy, wet snow is possible late Saturday night into early Sunday morning as snow levels slowly fall below 7000 feet. Chain restrictions may occur on the Sierra passes. http://weather.gov/reno
The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 9:12 AM PDT | Flood Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 4 days |
Nearby
River Flood Warnings in California, 2018Every river flood warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.