Alert archive / Missouri / River Flood Warnings in 2018

River Flood Warning 136, NWS St. Louis, MO

December 4, 2018Pike County, Missouri; Calhoun County, Illinois

NWS St. Louis, MO issued this river flood warning at Dec 4, 2018, 10:49 AM CST for Pike County, Missouri; Calhoun County, Illinois. It took effect at Dec 4, 2018, 6:00 PM CST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Dec 4, 2018, 10:49 AM CST (16:49 UTC)
In effect from: Dec 4, 2018, 6:00 PM CST
Expired: Dec 5, 2018, 8:45 AM CST
In force: 15 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: Minor

Counties Calhoun County, IL, Pike County, MO

The radar

The St Louis radar (KLSX), 65 km from the middle of the area, began a volume at 16:51 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 river

Written for the forecast point Mississippi River at Clarksville Lock and Dam 24 (CLKM7).

Action stage: 23 ft
Minor stage: 25 ft
Moderate stage: 31 ft
Major stage: 33 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning 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 river flood warning went out at Dec 4, 6:37 AM CST, 4 hours 12 minutes earlier.

Area forecast discussion, Dec 4, 6:37 AM CST, 4 hours 12 minutes before

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Hazardous weather outlook, Dec 4, 7:46 AM CST, 3 hours 3 minutes before

Hazardous Weather Outlook
National Weather Service Saint Louis MO
746 AM CST Tue Dec 4 2018

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-051400-
Adams IL-Audrain MO-Bond IL-Boone MO-Brown IL-Calhoun IL-Callaway MO-
Clinton IL-Cole MO-Crawford MO-Fayette IL-Franklin MO-Gasconade MO-
Greene IL-Iron MO-Jefferson MO-Jersey IL-Knox MO-Lewis MO-Lincoln MO-
Macoupin IL-Madison IL-Madison MO-Marion IL-Marion MO-Moniteau MO-
Monroe IL-Monroe MO-Montgomery IL-Montgomery MO-Osage MO-Pike IL-
Pike MO-Ralls MO-Randolph IL-Reynolds MO-Saint Charles MO-
Saint Clair IL-Saint Francois MO-Saint Louis City MO-Saint Louis MO-
Sainte Genevieve MO-Shelby MO-Warren MO-Washington IL-Washington MO-
746 AM CST Tue Dec 4 2018

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.

Snow showers are expected across the area today. Accumulations will
be quite variable and less than an inch.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Light snow is likely late Wednesday night and Thursday across parts
of the area with snow accumulations of less than one half inch.
Snow is also likely across southeast Missouri Saturday and Saturday
night with minor accumulations possible.

.SPOTTER INFORMATION STATEMENT...

Spotters are asked to relay snow amounts.

Glass

In the hours before

Local storm report, Dec 4, 8:14 AM CST, 2 hours 35 minutes before

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Local storm report, Dec 4, 9:31 AM CST, 1 hour 18 minutes before

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Local storm report, Dec 4, 9:48 AM CST, 1 hour 1 minute before

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Local storm report, Dec 4, 9:54 AM CST, 55 minutes before

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Local storm report, Dec 4, 10:02 AM CST, 47 minutes before

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Local storm report, Dec 4, 10:16 AM CST, 33 minutes before

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The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 4, 3:36 PM CST	River Flood Warning	LSX	Gasconade, Montgomery	28 hr

Nearby

River Flood Warnings in Missouri, 2018 River Flood Warnings in Illinois, 2018 Every river flood warning in 2018

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; the gauge from the NWS water service and the USGS.