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Storm Center: Weather Alerts: Warnings

My Location: San Francisco, CA

Current Time: 07:04:34 PM PST


	Other Alerts

Weather Alert

		Other Weather Alerts
Type	Air Quality Alert	Air Stagnation Advisory
Issued By	NWS Riverton (Western Wyoming)
Issuing Time	Fri, 21 Feb 2020 13:45:00 PST
Broadcast Time	Fri, 21 Feb 2020 13:45:00 PST
Valid Until	Sat, 22 Feb 2020 14:00:00 PST
Brief Description	Air Quality Alert
Detailed Description	Ozone Action Day in Effect for Saturday, February 22nd, 2020 for the Upper Green River Basin Ozone Nonattainment Area. The following message is transmitted at the request of the Air Quality Division of the Wyoming Department of Environmental Quality. The Air Quality Division has extended the Ozone Action Day through Saturday, February 22nd, 2020 for the Upper Green River Basin Ozone Nonattainment Area. An Ozone Action Day is issued when forecasted weather conditions are favorable for the formation of ozone. Ozone appears to be elevated in the basin when there is a presence of ozone-forming precursor emissions including oxides of nitrogen and volatile organic compounds coupled with meteorological conditions such as strong temperature inversions, low winds, snow cover, and sunlight. During the winter ozone season (January-March), everyone should take actions to reduce precursor emissions and ground-level ozone formation. Ozone is an air pollutant that can cause respiratory distress especially to children, the elderly, and people with existing respiratory conditions such as asthma. People in these sensitive groups should limit strenuous or extended outdoor activities, especially in the afternoon and evening. For more information on ozone and the health effects of ozone, please visit the websites for the Wyoming Department of Environmental Quality at deq.wyoming.gov and the Wyoming Department of Health at www.health.wyo.gov. Current information on ozone levels at the Air Quality Division`s monitoring stations at Daniel South, Pinedale, Boulder, Big Piney, and Juel Spring can be found at www.wyvisnet.com.

All Alerts

Region	Alert
Wisconsin	Flood Warning (4)
Texas	Flood Warning (38)
Tennessee	Flood Warning (120)
South Dakota	Flood Warning (11)
South Carolina	Flood Warning (33)
North Carolina	Flood Warning (16)
Mississippi	Flood Warning (260)
Missouri	Flood Warning (65)
Michigan	Flood Warning
Louisiana	Flood Warning (163)
Kentucky	Flood Warning (104)
Indiana	Flood Warning (96)
Illinois	Flood Warning (103)
Georgia	Flood Warning (128)
Florida	Flood Warning (8)
Arkansas	Flood Warning (114)
Alabama	Flood Warning (93)
Nebraska	Flood Warning (6)
Tennessee	Urban and Small Stream Flood Advisory (9)
South Carolina	Urban and Small Stream Flood Advisory (4)
Mississippi	Urban and Small Stream Flood Advisory (17)
Arkansas	Urban and Small Stream Flood Advisory (12)
Alabama	Urban and Small Stream Flood Advisory (4)
Nebraska	Urban and Small Stream Flood Advisory (5)
Missouri	Urban and Small Stream Flood Advisory (7)
Kentucky	Urban and Small Stream Flood Advisory (4)
American Samoa	Hurricane Local Statement (4)
Utah	Winter Weather Warning, Watch, or Advisory
Nevada	Winter Weather Warning, Watch, or Advisory (2)
North Carolina	Winter Weather Warning, Watch, or Advisory
Colorado	Winter Weather Warning, Watch, or Advisory (4)
California	Winter Weather Warning, Watch, or Advisory
Alaska	Winter Weather Warning, Watch, or Advisory (4)
Wyoming	Air Stagnation Advisory
Michigan	Lakeshore Warning or Statement (6)
Florida	Coastal Flood Warning, Watch, or Statement
Wisconsin	Special Weather Statement (2)
Minnesota	Special Weather Statement
Iowa,Minnesota,Wisconsin	Special Weather Statement
Alaska	Special Weather Statement
American Samoa coastal waters,American Samoa coastal waters	Tropical Cyclone Advisory (3)
Nebraska	Flash Flood Watch
Arizona	Flash Flood Watch
American Samoa	Flash Flood Watch
Mississippi	Severe Weather Statement (5)
Louisiana	Severe Weather Statement (3)
Mississippi	Flood Statement
Alabama	Flood Statement (6)
Oregon	Marine Weather Statement (2)
North Carolina	Marine Weather Statement (10)
Guam	Marine Weather Statement (11)
Georgia	Marine Weather Statement (3)
Florida	Marine Weather Statement (7)
American Samoa	Marine Weather Statement (2)
Kosrae Coastal Waters	Marine Weather Statement
Pohnpei Coastal Waters	Marine Weather Statement
Chuuk Coastal Waters	Marine Weather Statement
Koror Palau Coastal Waters,Yap Coastal Waters	Marine Weather Statement
Saipan Coastal Waters,Rota Coastal Waters,Tinian Coastal Waters,Guam Coastal Waters	Marine Weather Statement
Coastal California-Oregon,Coastal Oregon-California	Marine Weather Statement (8)
Coastal Florida	Marine Weather Statement (2)
Coastal Florida	Marine Weather Statement
Coastal Texas	Marine Weather Statement
Lake Ontario	Marine Weather Statement (6)
Lake Ontario	Marine Weather Statement
Lake Erie	Marine Weather Statement
Buffalo Harbor and the Upper Niagara River	Marine Weather Statement (3)
Lake Erie	Marine Weather Statement
Coastal Florida	Marine Weather Statement
Biscayne Bay	Marine Weather Statement (2)
Lake Okeechobee (Florida)	Marine Weather Statement (2)
Coastal North Carolina	Marine Weather Statement (5)
Pamlico Sound - North Carolina	Marine Weather Statement
Coastal Georgia	Marine Weather Statement (4)
Coastal South Carolina-Georgia	Marine Weather Statement (5)
Lake Erie	Marine Weather Statement
Hawaii	Marine Weather Statement (4)
Lake Ontario	Marine Weather Statement
Lake Erie	Marine Weather Statement
Lake Ontario	Marine Weather Statement
Lake Erie	Marine Weather Statement
Lake Ontario	Marine Weather Statement
Coastal South Carolina-Georgia,Coastal Georgia	Marine Weather Statement
Coastal South Carolina-Georgia,Coastal Georgia	Marine Weather Statement
Coastal South Carolina-Georgia,Coastal Georgia	Marine Weather Statement
Coastal South Carolina-Georgia,Coastal Georgia	Marine Weather Statement
Coastal North Carolina	Marine Weather Statement
Coastal North Carolina	Marine Weather Statement
Coastal North Carolina-South Carolina,Coastal South Carolina	Marine Weather Statement
Coastal North Carolina	Marine Weather Statement
Coastal North Carolina-South Carolina,Coastal South Carolina	Marine Weather Statement
Coastal North Carolina	Marine Weather Statement
Coastal North Carolina	Marine Weather Statement
Coastal North Carolina	Marine Weather Statement
New Mexico	Non Precipitation Warning, Watch, or Statement
Mississippi	Non Precipitation Warning, Watch, or Statement
Louisiana,Mississippi	Non Precipitation Warning, Watch, or Statement
Georgia	Non Precipitation Warning, Watch, or Statement (9)
Florida	Non Precipitation Warning, Watch, or Statement (6)
Lake Michigan - Michigan,Lake Michigan,Lake Huron,Lake Michigan - Michigan	Non Precipitation Warning, Watch, or Statement (20)
Coastal Florida	Non Precipitation Warning, Watch, or Statement (4)
Coastal Florida,Southeast Coast (Atlantic) from NC south; Puerto Rican Waters; Caribbean Sea; Southwest North Atlantic	Non Precipitation Warning, Watch, or Statement (14)

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