Alert archive / Illinois / Areal Flood Advisories in 2022
Areal Flood Advisory 21, NWS St. Louis, MO
NWS St. Louis, MO issued this areal flood advisory at Jul 2, 2022, 10:31 AM CDT for Monroe County, Randolph County, Saint Clair County, Illinois. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 2, 2022, 10:31 AM CDT (15:31 UTC)
- Expired
- Jul 2, 2022, 1:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Monroe County, IL, Randolph County, IL, Saint Clair County, IL
The radar
The St Louis radar (KLSX), 78 km from the middle of the area, began a volume at 15:35 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.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 3.5 hours before the alert went out and 375 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1717 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood 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 areal flood advisory went out at Jul 2, 6:31 AM CDT, 4 hours earlier.
Area forecast discussion, Jul 2, 6:31 AM CDT, 4 hours before
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</html>Hazardous weather outlook, Jul 2, 4:29 AM CDT, 6 hours 2 minutes before
Hazardous Weather Outlook National Weather Service Saint Louis MO 429 AM CDT Sat Jul 2 2022 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-030930- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 429 AM CDT Sat Jul 2 2022 This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Today and tonight. There is a chance of thunderstorms over the area tonight. Isolated severe thunderstorms are possible late this morning and this afternoon over parts of central and southeast Missouri as well as southwest Illinois. Damaging winds up to 60 mph are the primary threat. .DAYS TWO THROUGH SEVEN...Sunday through Friday. The chance for thunderstorms continues Sunday through Friday across parts of the area. Dangerous levels of heat will return early next week with widespread heat indices of 105 degrees or greater possible Tuesday into Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed late this morning and this afternoon over parts of central and southeast Missouri as well as southwest Illinois. Britt
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 11:26 AM CDT | Areal Flood Advisory | LSX | Jefferson | 3 hr |
| Jul 2, 12:49 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Francois | 28 min |
| Jul 2, 3:25 AM CDT | Areal Flood Advisory | LSX | Clinton, Fayette, Marion | 3 hr |
Nearby
Areal Flood Advisories in Illinois, 2022Every areal flood advisory in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.