Alert archive / Illinois / Heat Advisories in 2008

Heat Advisory 1, NWS St. Louis, MO

July 19, 2008Saint Charles County, Saint Louis County, City of Saint Louis, Missouri; 7 counties in Illinois

NWS St. Louis, MO issued this heat advisory at Jul 19, 2008, 3:43 PM CDT for Saint Charles County, Saint Louis County, City of Saint Louis, Missouri; 7 counties in Illinois. It took effect at Jul 20, 2008, 12:00 PM CDT. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued: Jul 19, 2008, 3:43 PM CDT (20:43 UTC)
In effect from: Jul 20, 2008, 12:00 PM CDT
Expired: Jul 21, 2008, 6:00 PM CDT
In force: 30 hr
Issued by: NWS St. Louis, MO

Counties Clinton County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, City of Saint Louis, MO, Saint Charles County, MO, Saint Louis County, MO

The radar

The St Louis radar (KLSX), 71 km from the middle of the area, began a volume at 20:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS St. Louis, MO wrote its last area forecast discussion before this heat advisory went out at Jul 18, 6:25 PM CDT, 21 hours 18 minutes earlier.

Area forecast discussion, Jul 18, 6:25 PM CDT, 21 hours 18 minutes before

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Hazardous weather outlook, Jul 18, 3:50 PM CDT, 23 hours 53 minutes before

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Nearby

Heat Advisories in Illinois, 2008 Heat Advisories in Missouri, 2008 Every heat advisory in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.