Summary:
Heavy rainfall and gusty winds are expected in southern Oregon to central California into early Thursday morning, and then push south into southern California through the day. Heavy snowfall is expected over the Sierra into the Intermountain West. Above average temperatures will continue across the Plains and Mississippi Valley. Impacted Lanes: I-5, I-80, I-15, I-10, I-215, I-84, I-94, I-29, I-35, I-90, I-39
California
Flood Watch remains in effect until 9 AM PST Friday morning
- Flooding caused by excessive rainfall continues to be possible. A fast-moving low pressure system moving inland through southwestern California today will bring widespread moderate to locally heavy rainfall with showers continuing into tonight.
- Impacts: Excessive runoff may result in flooding of rivers, creeks, streams, roadways, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.
Winter Storm Warning remains in effect until 4 PM PST this afternoon
- Heavy snow possible. Total snow accumulations up to 18 inches possible above 7000 feet, up to 6 inches between 6000 and 7000 feet and a dusting to 3 inches between 4500 and 6000 feet. Winds could gust as high as 55 mph.
- Impacts: Travel could be very difficult. Strong winds could cause tree damage.
Winter Weather Advisory remains in effect until 10 PM PST this evening
- Light to moderate snow expected, mainly above 6000 feet. A dusting up to 2 inches possible between 4500 and 6000 feet. Winds gusting as high as 55 mph.
- Impacts: Travel could be difficult, especially for high profile vehicles. Gusty winds could bring down tree branches.
Flood Advisory remains in effect until 9 AM PST this morning
- Urban and small stream flooding caused by excessive rainfall is expected.
- Impacts: Minor flooding in low-lying and poor drainage areas. Water over roadways.
Flood Warning remains in effect until 8 AM PST this morning
- Small stream flooding caused by excessive rainfall continues.
- Impacts: Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. It will take several hours for all the water from these storms to work through local drainage systems in urban areas. Water over roadways.
Wind Advisory remains in effect until 2 PM PST this afternoon
- South winds 25 to 35 mph with gusts to 55 mph expected.
- Impacts: Gusty winds could blow around unsecured objects. Tree limbs and palm fronds could be blown down. Travel could be difficult, especially for high profile vehicles.
Iowa
Dense Fog Advisory remains in effect until 11 AM CST this morning
- Visibility one quarter to one half mile in dense fog.
- Impacts: Low visibility could make driving conditions hazardous.
Additional Winter Storm Warnings include but are not limited to: Nevada, Utah, Colorado, and Arizona
Additional Winter Weather Advisories include but are not limited to: Idaho, Nevada, Utah, Arizona, New Mexico, and Maine
Additional Flood Advisories include but are not limited to: Arkansas, and Tennessee
Additional Flood Warnings include but are not limited to: Illinois, Michigan, Indiana, Ohio, Arkansas, Texas, Louisiana, Mississippi, and Alabama
Additional Flood Watches include but are not limited to: Nevada
Additional Wind Advisories include but are not limited to: Nevada
Additional Dense Fog Advisories include but are not limited to: Wyoming, North Dakota, South Dakota, Nebraska, Minnesota, and Montana
