Hurricane Rosa could soak the dry Southwest

Category 1 Hurricane Rosa is expected to make landfall in Mexico as a tropical storm, then continue moving northeast into the Southwestern US. CNN's Allison Chinchar explains how the rainfall could lead to life-threatening flash flooding in the deserts.

Posted: Oct 1, 2018 12:01 PM
Updated: Oct 1, 2018 12:01 PM

Hurricane Rosa was spinning toward the Baja Peninsula on Sunday as a Category 1 storm with sustained winds of 85 mph, the National Hurricane Center said.

Rosa is expected to make landfall Monday as a tropical storm, then continue moving northeast, soaking the southwestern United States.

High surf up to 10 feet and rip currents will begin along southern California coast Sunday, the hurricane center said. The potentially dangerous conditions are expected to last through Monday. Some 12- to 15-foot waves are possible on south-facing shores.

More than 10 million people are under flash flood watches at the US-Mexico border along California and Arizona, and north through Utah.

Rain is expected to begin Sunday afternoon in southeastern California and Arizona, where 2-4 inches is likely to fall, forecasters said. Some areas could get up to 6 inches.

All that rain can lead to life-threatening flash flooding in the deserts, forecasters said.

Firefighters in the Phoenix area are reminding residents they can fill up sandbags for free at some area fire stations, CNN affiliate KPHO/KTVK reports.

"What we're worried about is all the flooding that we potentially could have," Queen Creek Fire Department Capt. Kris Gale told the station. "It won't keep all of the water out. They're good for about 2 feet of water."

Southwest seeing increase in tropical rainfall

It's rare for a hurricane or tropical storm to impact the southwestern US, but CNN meteorologist Gene Norman says, "These events have begun to increase in recent years."

In Arizona, remnants of tropical cyclones account for about 25% of the annual rainfall along the Colorado River, Norman said.

The region bracing for Rosa's rain was already soaked by remnants of Hurricane Bud in June.

Arizona was also pummeled by a one-two punch of flooding from back-to-back remnants of Norbert and Odile, on September 8 and 18 respectively, in 2014.

Mississippi Coronavirus Cases

Data is updated nightly.

Cases: 266598

Reported Deaths: 5852
CountyCasesDeaths
DeSoto17807191
Hinds16967332
Harrison14298204
Rankin11280221
Jackson10976190
Lee9088145
Madison8619169
Jones6782118
Forrest6236124
Lauderdale6128192
Lowndes5564120
Lafayette5229101
Lamar507465
Washington4951125
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Panola388281
Pontotoc378560
Warren3698103
Monroe3693110
Marshall358570
Union357764
Pearl River3508106
Neshoba3499154
Leflore3122109
Lincoln307688
Hancock296362
Sunflower293075
Tate281162
Alcorn273554
Pike271081
Itawamba270063
Scott260849
Yazoo257156
Prentiss254554
Coahoma251555
Copiah250749
Tippah250150
Simpson243872
Leake238467
Marion225973
Grenada224272
Covington222473
Adams215371
Wayne215034
Winston207771
George204839
Newton200046
Attala197464
Tishomingo195661
Chickasaw189644
Jasper182538
Holmes172268
Clay167537
Tallahatchie157535
Stone152925
Clarke148662
Calhoun141822
Smith130726
Yalobusha123835
Walthall115037
Greene114529
Noxubee114126
Montgomery112736
Lawrence107617
Carroll106922
Perry105331
Amite102426
Webster97424
Claiborne89725
Tunica89321
Jefferson Davis88930
Benton86523
Humphreys84824
Kemper81020
Quitman7149
Franklin70717
Choctaw63813
Wilkinson59925
Jefferson57121
Sharkey45717
Issaquena1606
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Alabama Coronavirus Cases

Cases: 443009

Reported Deaths: 6662
CountyCasesDeaths
Jefferson649101007
Mobile31746574
Madison28413217
Tuscaloosa21566275
Montgomery20088332
Shelby19452132
Baldwin17333189
Lee13261107
Morgan12678142
Etowah12141181
Calhoun11555206
Marshall10487123
Houston9031164
Limestone838181
Cullman8296124
Elmore8243110
Lauderdale7946107
DeKalb7900107
St. Clair7876130
Talladega6523112
Walker6050183
Jackson603245
Colbert558194
Blount548586
Autauga540762
Coffee466964
Dale412785
Franklin377550
Russell358415
Chilton346873
Covington340880
Escambia339244
Tallapoosa3163109
Dallas313696
Chambers305470
Clarke303336
Pike265231
Lawrence255855
Marion254661
Winston234742
Bibb222948
Geneva213047
Marengo210531
Pickens200431
Hale186144
Barbour183438
Fayette178829
Butler174860
Cherokee166031
Henry160025
Monroe152621
Randolph146636
Washington142727
Clay130746
Crenshaw124845
Macon122837
Cleburne122125
Lamar120622
Lowndes116836
Wilcox108322
Bullock104628
Perry100518
Conecuh98022
Sumter90627
Greene77923
Coosa64018
Choctaw52124
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