Arizona weather forecast: Hurricane Polo moisture could bring rain, flood risks

Rain chances and cooler temperatures arrive in Arizona

Phoenix faces potential heavy rain and dropping temperatures as a storm system moves across the state. FOX 10's Ashley Loaeza has more on when we can expect rain, and how much.

PHOENIX - It was a cloudy start to the weekend as tropical moisture moves into the state for the next few days.

This Weekend:

Mainly light rain moved into northwestern parts of the state, with tropical moisture from hurricanes Odalys and Polo becoming widespread across the state for the start of the workweek.

There is a slight chance for rain to move into the Valley on Sunday night, but the main event will still be on Monday and Tuesday.

Flood Watches:

Flood watches have now been extended for parts of the north and east Valley beginning late Monday into Tuesday evening. Flooding caused by excessive rainfall may be possible for parts of the Valley including Scottsdale, Mesa, Cave Creek and Fountain Hills.

Tropical moisture along with a Pacific low pressure will allow for storm coverage picking up late Monday into Tuesday. Some storms could also produce strong thunderstorms, with northern and eastern parts of the state still looking at the threat for numerous flash flooding possible. The highest rain totals will be along higher terrain and the foothills where up to 2 inches is possible.

Looking Ahead:

By Wednesday, it will be drier and warmer with clearing skies. Temperatures will drop into the 80s through Wednesday as moisture moves in along with cloudy skies. Overnight lows will also be cooler in the upper 60s.

Friday and Saturday Recap:

Phoenix hit a high of 100 degrees on Saturday, which is a few degrees above normal.

Tropical moisture brings widespread rain to Phoenix and high country

Tropical moisture from Hurricane Polo moves into Arizona, bringing widespread rain chances and cooler temperatures through midweek. FOX 10's Ashley Loaeza has more on when we can expect wetter weather.

Friday was a pleasant and dry day in the Valley, with clear skies and sunshine with Phoenix hitting a high of 95 degrees.

Arizona weather: Rain possible next week

Warm weekend temperatures precede incoming tropical moisture and lower early-week high temperatures.

You can always check the latest weather conditions by visiting the FOX 10 Phoenix weather page, or download the Free FOX 10 Weather app, which is available on Apple iOS and Android.

Scroll down this page for satellite and radar, day planner, records, current temperatures, 10-day forecast, forecast highs, and recent rainfall totals, plus live video feeds.

The following heat safety information was provided by the Scottsdale Fire Department.

What are Heat Emergencies?

Heat Cramps: Profuse sweating, fatigue, extreme thirst, muscle cramps

Heat Exhaustion: Headache, dizziness, weakness, nausea/vomit, Cool/moist skin

Heat Stroke: Elevated temp. +103degrees, confusion/irrational behavior, dry/hot skin, rapid shallow breathing, rapid weak pulse (shock), seizures, unconscious

What to do

Get person into shade or cool location.
Cool person with cool, wet cloths (neck, groin, armpits, head) and fan body.
Sip cool water if person is alert.
For muscle cramps, massage muscles gently, but firmly until relaxed.
*If symptoms worsen, call 911.

What not to do

Do not give anything by mouth if person is vomiting, unable to swallow or unconscious.
Do not underestimate the seriousness of a heat emergency.
Prevention/Preparation for hike/exercise in heat.

Know your limitations

Hydrate (begins day prior to hike/exercise, hour before hike, during and after).
Wear proper clothing, lightweight and light color, protect head, proper shoes.
Always carry a cell phone and best to hike with company.
Always tell someone where you are hiking and when to plan to return.

Preventing heat exhaustion/heat stroke

The Arizona Department of Health Services stated the following precautions can be taken to prevent heat exhaustion or heat stroke:

Stay in air-conditioned buildings.
Find a cooling center/hydration station.
Limit outdoor activity during the hottest part of the day (mid-day).
Check on at-risk friends, family, and neighbors at least twice a day.
Drink water before, during, and after working or exercising outside.
Check the UV Index.
Check the heat risk map.

Road Conditions

Call 511 anywhere in Arizona or 1-888-411-ROAD (7623)

Rain/flood safety tips

The American Red Cross' tips for heavy rain situations and flood safety:

Turn around don’t drown! If you must drive and you encounter a flooded roadway, turn around and go another way.
If you are caught on a flooded road and waters are rising rapidly around you, get out of the car quickly and move to higher ground.
Tune in to your local radio, NOAA radio, or news channels for the latest updates.
If your neighborhood is prone to flooding, be prepared to evacuate quickly.
Follow evacuation orders and do not attempt to return until officials say it is safe.
If power lines are down, do not step in puddles or standing water.
If power is out, use a flashlight. Do not use any open flame as alternate lighting.

Preparing for a severe thunderstorm

The American Red Cross' tips for preparing for a severe thunderstorm:

Put together an emergency kit.
Know your community’s evacuation plan.
Create a household disaster plan and practice it.
Purchase a battery-powered or hand-crank radio
Discuss thunderstorm safety with members of your household. Be aware that a thunderstorm could produce flooding.
Pick a safe place in your home for household members to gather during a thunderstorm. This should be a place where there are no windows, skylights, or glass doors, which could be broken by strong winds or hail and cause damage or injury.

Be prepared and stay safe during the monsoon

"Most Valley residents know how quickly and furiously storms can move in and out, bringing strong winds, dust, rain, and flash flooding. These storms can cause interruptions in services, such as water, power, and gas," stated Captain Ashley Losch of the Glendale Fire Department.

GFD reminds residents of ways they can be prepared and stay safe:

Have flashlights with extra batteries on hand.
Have food that can be prepared without the need for cooking or refrigeration.
Have at least one gallon of clean water for each person in the household.
Have backup power for anyone requiring power for a medical device.
Have backup power for cell phones that do not require charging.
Have a first aid kit ready and accessible.
Never drive into areas with flowing water; it takes less than 10 inches to wash a car away.
Avoid flooded areas, such as washes.
If waters are rising, seek higher ground.
Do not approach downed power lines, the ground can be energized for up to 200 feet.
Keep pets indoors during storms.