Alert archive / Missouri / Areal Flood Warnings in 2013

Areal Flood Warning 2, NWS St. Louis, MO

January 12, 2013Iron County, Madison County, Reynolds County, Missouri

NWS St. Louis, MO issued this areal flood warning at Jan 12, 2013, 11:29 PM CST for Iron County, Madison County, Reynolds County, Missouri. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 12, 2013, 11:29 PM CST (05:29 UTC)
Expired: Jan 13, 2013, 9:30 AM CST
In force: 10 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Iron County, MO, Madison County, MO, Reynolds County, MO

The radar

The St Louis radar (KLSX), 139 km from the middle of the area, began a volume at 05:32 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

Springfield, MO (KSGF), launched 00:00Z, 5.5 hours before the alert went out and 284 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 19 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 403 m above ground
0-6 km bulk shear: 94 kt
0-1 km storm-relative helicity: 439 m²/s²
0-3 km storm-relative helicity: 524 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal 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 areal flood warning went out at Jan 12, 11:07 PM CST, 22 minutes earlier.

Area forecast discussion, Jan 12, 11:07 PM CST, 22 minutes before

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Hazardous weather outlook, Jan 12, 3:11 PM CST, 8 hours 18 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
311 PM CST SAT JAN 12 2013

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-131200-
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-ST. CLAIR IL-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-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
311 PM CST SAT JAN 12 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND
CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS.

.DAY ONE...TONIGHT

A MIX OF SNOW...SLEET...AND FREEZING RAIN IS EXPECTED ACROSS THE
AREA TONIGHT. MINOR SNOW...SLEET AND ICE ACCUMULATION IS EXPECTED
MAINLY FOR AREAS NORTH AND WEST OF INTERSTATE 44 IN MISSOURI AND
INTERSTATE 55 IN ILLINOIS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

PATCHY FREEZING DRIZZLE IS EXPECTED EARLY SUNDAY MORNING. A LIGHT
GLAZING OF ICE IS POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT WINTER PRECIPITATION TYPE AND
AMOUNTS.

CVKING

In the hours before

Local storm report, Jan 12, 9:56 PM CST, 1 hour 33 minutes before

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Local storm report, Jan 12, 10:03 PM CST, 1 hour 26 minutes before

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Local storm report, Jan 12, 10:13 PM CST, 1 hour 16 minutes before

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Local storm report, Jan 12, 10:25 PM CST, 1 hour 4 minutes before

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Local storm report, Jan 12, 10:41 PM CST, 48 minutes before

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Local storm report, Jan 12, 10:42 PM CST, 47 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
Jan 12, 7:12 PM CST	Areal Flood Warning	LSX	Iron, Madison, Reynolds	6 hr
Jan 12, 7:35 PM CST	River Flood Warning	LSX	Reynolds	35 hr
Jan 12, 8:06 PM CST	River Flood Warning	LSX	Jefferson	24 hr
Jan 12, 10:18 PM CST	Areal Flood Advisory	LSX	Audrain, Boone, Callaway, Crawford, Franklin, Gasconade and 16 more	175 days
Jan 12, 8:33 PM CST	River Flood Warning	LSX	Fayette	4 days
Jan 12, 11:00 PM CST	Areal Flood Advisory	LSX	Bond, Clinton, Fayette, Marion, Saint Clair, Washington	9 hr

Nearby

Areal Flood Warnings in Missouri, 2013 Every areal flood warning in 2013

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.