Mexico
Prior to the storm approaching, a tropical storm watch was issued for Michoacan. [16] However, it was discontinued when Mario weakened to a tropical depression. [17] Forecasters warned that the storm could produce 1-3 inches of rain in some areas. [18] A flash flood warning was additionally in effect through 14 September. [19] A green alert was issued for Jalisco. [20] A blue alert was issued for Guerrero and Oaxaca. [21] The port of Lazaro Cardenas was closed. [22] Classes in Michoacan were suspended prior to the arrival of the storm. [23] The port of Cabo San Lucas was closed to small boat traffic. [24]
In Guerrero, flooding, fallen trees, and power outages were reported. [25] A total of 9.06 in (230 mm) of rain fell in Coyuca de Benítez. [26] Landslides caused damage along roadways, isolating several communities. [27] In Bahía de Banderas, Nayarit, 8.58 in (218 mm) of rain fell, flooding streets and causing traffic congestion. [28] [26] Two pickup trucks were swept away by floodwaters. [29] In Michoacán, 4.56 in (116 mm) of rain fell, causing minor flood damage to several homes and vehicles. [26] [30] In Jalisco, a maximum total of 5.79 in (147 mm) of rain fell, causing flooding up to 1.5 m (4.9 ft) in some areas. [26] The Lerma River overflowed, flooding at least 300 homes across seven different municipalities, affecting over 1,200 people. [31] [32] One person was rescued after being swept away by floodwaters. [33] An overflowing river swept away two men, one of them was rescued, however, the other was later found dead. [34] In Puerto Vallarta, 150 people were evacuated after their condominium was flooded. [35] In Colima, up to 7.06 in (179 mm) of rain fell, resulting in urban flooding. [26] [32] Rip currents were also reported along beaches. [32] Strong winds caused two trees to fall and two people were rescued after their vehicles were swept away by floodwaters. In Cuauhtémoc, an overflowing stream caused a wall to collapse. [36]
The outer rain bands from the system also triggered heavy flash flooding in Baja California Sur. Several homes, vehicles, and roads were damaged by floodwaters. [37] At least 64 homes were inundated. [38] Damage from the storm forced the closure of ten schools. [39] A portion of a highway in In San Ignacio collapsed, cutting off several local communities and causing a gas truck to fall in. [40] [41] Over 250 families were left homeless following the storm. [42] Flooding caused the cancellation of an Independence Day celebration in Mulegé. [43] In Cabo San Lucas and San José del Cabo, sinkholes and flooding on roadways caused widespread traffic disruption. Drainpipes were damaged, causing wastewater to flood several neighborhoods and shopping centers. [44] [45] At least two people were injured after two pickup trucks collided due to slippery roads. [46] A 37-year-old man was struck and killed by lightning during the passage of the storm. [47]
United States
Before the storm, parts of the Southwestern United States were placed under a slight risk of excessive rainfall. [48] The remnants of Mario prompted flood and flash flood warnings throughout Central and Southern California. [49] [50] Officials warned that lightning could spark potential fires. [51] Thunderstorms were also reported, with over nine thousand lightning strikes recorded. Heavy rainfall was also recorded in the state, with precipitation peaking at 4.14 in (105 mm) at Running Springs. [49] [50] Near Forest Falls, 1.77 in (45 mm) of rain fell in a single hour. [52] At San Diego, the rainfall total was 0.45 in (11 mm), well above the monthly average and pushing September to its seventh highest rainfall total. [53] In Imperial County, winds gusted up to 64 miles per hour (103 km/h). On California State Route 111, a semi-truck flipped over. [54] In Barstow, floodwaters swept away a vehicle, killing a toddler and injuring his father. [55] [56] Two others were injured in a seven vehicle pileup on Interstate 10. [57] Across California, heavy rain triggered numerous landslides, leaving several vehicles stranded. [58] This was particularly severe in areas such as Oak Glen, which was still recovering from the El Dorado Fire. [59] Ten people required rescue after becoming stranded on California State Route 38 in the San Bernardino Mountains. [53] Mudslides and flooding damaged fourteen homes, four outbuildings, one commercial building and destroyed three homes. [60] At Death Valley National Park, several roads were closed and there was severe flooding in the park, with a quarter of the park's annual precipitation falling during the storm. [61] [62] Over 7,000 customers lost power in Imperial County alone. [63] However, the rains were noted to have slightly reduced the fire risk in the region. [64] Further north in the Central Valley, 0.81 in (21 mm) of rain poured down in Fresno. [65] Damage in California totaled to US$168,000. [56]
Rainfall at Harry Reid International Airport in Las Vegas reached 0.24 inches (6.1 mm), the wettest day at the airport since May 6. [66] [67] Locally heavy rainfall was recorded in the northern part of the state, but was not universal across the area. [68] In Clark County, strong winds downed a tree, killing a horse. Damage totaled to US$5,000. [69] Rainfall was also recorded in Arizona, peaking at 0.3 in (7.6 mm) in Tempe. [70] Street flooding forced several road closures. [71] Five children and a dog were rescued from rising floodwaters. [72] Slippery roads caused an SUV to veer off a road. [73] In Phoenix, three people were injured after slippery roads caused a traffic collision. One person was rescued after their car was swept away by floodwaters. [74] At least 1,800 households lost power during the storm. [75]
A local emergency was declared in Imperial County in the aftermath of the storm. [76] A shelter was also opened in Calexico. [63] Congressmen Raul Ruiz visited the Imperial Valley to look at the damage the storm caused in the aftermath. [77] In addition, Caltrans launched a $9.7 million project to restore California State Route 38 through the San Bernardino National Forest. [78]
