Intellicast - Weather Alerts

To view the watches and warnings information that we have available you will need to select your city, county, or state first.

Enter City, State or Zip Code to Select a Location from the List

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The National Weather Service's Watches, Warnings and Advisories by state counties include: Thunderstorm, Tornado, Flood, Flash Flood, Winter Storm, High Wind, Gale, Small Aircraft, High Surf, Marine, Heat, Air Quality, Ashfall, Hazardous, and Special Statements.

Weather Alerts: SAN MATEO County, California

» View a list of states with weather alerts

Stay ahead of oncoming storm systems with our Severe Weather Tracking maps.

Severe weather is any destructive weather phenomenon. The term is usually used to refer to severe thunderstorms and related phenomena, such as tornados, hail, and downbursts. Severe weather can also refer to snowstorms, ice storms, blizzards, flooding, hurricanes, and high winds.

Severe Outlook Today
WSI's Severe Outlook Map displays current Watches, Warnings and Advisories via County Fill colors.

Severe Outlook Tomorrow
WSI's Severe Outlook Forecast Map displaying projected Watches, Warnings and Advisories.

Watches & Warnings »
1Km Storm Watch »
Metro Storm Watch »

Lightning Strikes»
THUNDERcast »

Providing "weather, water cycle, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy."

Weather Alerts by Type

Air Quality Alert

Blizzard Warning

Fire Weather Watch

Flood Advisory

MT WA

Flood Warning

AR LA MI MS

Freeze Warning

AL FL GA

Freezing Rain Advisory

AZ OR

High Surf Advisory

High Wind Watch

MT NM TX

Lake Effect Snow Advisory

MI NY

Lake Effect Snow Warning

Special Weather Statement

AK AR KY ND NY OK OR

Wind Advisory

Wind Chill Advisory

MD ME MN ND NY VA WV

Winter Storm Watch

AK CT IA IL KS MA MD ME MO NH NJ NY PA VA VT WV

Winter Weather Advisory

AK IL IN KY MI MO NY OH OR PA

Additional Severe Weather Maps

Severe Outlook Today
WSI's Severe Outlook Map displays current Watches, Warnings and Advisories via County Fill colors.

Severe Outlook Tomorrow
WSI's Severe Outlook Forecast Map displaying projected Watches, Warnings and Advisories.

THUNDERcast
The THUNDERcast map shows areas of probability for regional or national thunderstorms for the current day.

1Km Storm Watch
The 1Km map allows you to view 1 kilometer (km) resolution radar imagery both nationally and regionally.

Metro Storm Watch
The Metro map allows you to view 1 kilometer (km) resolution radar imagery.

	Weather Alerts Current National Weather Service Watches and Warnings by type and state throughout the United States.

	Ski & Snow The Ski & Snow Section is where you can get the latest ski resort conditions and snow forecasts.