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The warnings, which expired Tuesday afternoon, were issued as the storm hit San Diego County for a second day.
SAN DIEGO (FOX 5/KUSI) – The National Weather Service on Tuesday issued a flash flood warning for “life-threatening” conditions and a rare tornado warning for parts of San Diego County, as a strong atmospheric river continued to lash the region. with heavy rains.
The flash flood warning was issued just before 10 a.m. for communities spanning San Diego and Orange counties as the rainfall rate approached 0.75 to an inch per hour, with a possible a two additional inches, according to the NWS. He expired at 1 pm Tuesday.
Neighborhoods in far northern San Diego County, such as Oceanside and Fallbrook, were included in the advisory. A map of the notice can be found below.
While the warning was in effect, the NWS said “life-threatening” flash flooding could occur, particularly near creeks, creeks and other waterways. Low-lying urban areas, roads, streets and underpasses were also likely to experience flooding.
Several hours after the flash flood warning was issued, a rare tornado warning was issued for a stretch of the South Bay and East County shortly after 11:45 a.m. after the NWS detected a strong storm capable of producing swirls .
“Pea-sized hail” and winds of more than 40 miles per hour were also said to be possible in communities under warning, including Chula Vista, National City, Spring Valley, El Cajon, Santee and Lakeside.
The warning was canceled around 12:30 p.m. According to the NWS, the system began to weaken below severe limits before the warning expired, meaning it “no longer appears capable of producing a tornado.”
At this time, it is unknown if any spirals were reported while the warnings were in effect.
Maps of the areas affected by the tornado warning can be found below.
In response to the warning, San Diego State University placed all students under a “Cover Up” alert. All people on campus and in surrounding areas were encouraged to avoid windows and stay indoors, while protecting themselves from flying debris.
The rest of San Diego County remains under a flood watch through Wednesday as rain continues. Isolated thunderstorms are also possible through Tuesday afternoon in inland areas as well as off the coast.
Precipitation is expected to taper off to light rain Wednesday afternoon. However, as of Tuesday morning, most of the county had already received more than one inch to two incheswhile several parts of North County, such as Oceanside, saw rainfall that broke single-day records.
Authorities said the flooding also caused at least at least one death a migrant trying to cross the United States border by swimming through the swollen Tijuana River.
FOX 5/KUSI are following the storm. Please check back for updates.
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