Alert archive / Illinois / Areal Flood Warnings in 2020

Areal Flood Warning 2, NWS St. Louis, MO

January 10, 2020Fayette County, Marion County, Illinois

NWS St. Louis, MO issued this areal flood warning at Jan 10, 2020, 4:56 PM CST for Fayette County, Marion County, Illinois. It was in force for 6 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 10, 2020, 4:56 PM CST (22:56 UTC)
Expired: Jan 10, 2020, 11:00 PM CST
In force: 6 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Fayette County, IL, Marion County, IL

The radar

The Evansville,IN radar (KVWX), 125 km from the middle of the area, began a volume at 23:00 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

Nashville Metro, TN (KBNA), launched 12:00Z, 10.9 hours before the alert went out and 365 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1116 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 470 m²/s²
0-3 km storm-relative helicity: 644 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 10, 3:05 PM CST, 1 hour 51 minutes earlier.

Area forecast discussion, Jan 10, 3:05 PM CST, 1 hour 51 minutes before

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Hazardous weather outlook, Jan 10, 3:29 PM CST, 1 hour 27 minutes before

Hazardous Weather Outlook
National Weather Service Saint Louis MO
329 PM CST Fri Jan 10 2020

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-112130-
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-
329 PM CST Fri Jan 10 2020

This Hazardous Weather Outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.

.DAY ONE...Tonight.

Multiple rounds of rainfall are expected with total additional
rainfall amounts of 2 to 4 inches forecast. Locally higher amounts
are possible. A Flash Flood Watch is in effect for a large portion
of the area. See the Watch product for additional details.

Scattered thunderstorms are forecast across much of the area. Some
of these storms may be severe tonight across parts of southern into
central Missouri and southwest Illinois. A hail threat will exist
this evening but the primary severe threats will be damaging winds
and isolated tornadoes for much of tonight.

Accumulating snow, sleet, and ice is expected mainly late tonight
across parts of northeast and central Missouri and west central
Illinois. The highest impacts are expected in northeast Missouri and
a portion of west-central Illinois where a Warning has been issued.
Please see the Warning product for additional details.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

The heavy rainfall threat is expected to shift east of our region by
Saturday afternoon. A Flash Flood Watch remains in effect for many
areas until this time. See the Watch product for additional details.

Accumulating snow, sleet, and ice is expected across northeast and
central Missouri and west central Illinois. The highest impacts are
expected in northeast Missouri and a portion of west-central
Illinois where a Warning has been issued. For central Missouri and
parts of west central Illinois an Advisory has been issued. Please
see the Warning and Advisory products for additional details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed for tonight. Spotters are
encouraged to report any severe weather, if observed, to the National
Weather Service and also to report rainfall amounts in excess of an
inch or any flooding.

GKS

In the hours before

Local storm report, Jan 10, 1:05 PM CST, 3 hours 51 minutes before

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Local storm report, Jan 10, 1:07 PM CST, 3 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
107 PM CST FRI JAN 10 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0930 AM     HEAVY RAIN       PACIFIC                 38.48N 90.75W
01/10/2020  M2.90 INCH       FRANKLIN           MO   PUBLIC

            PUBLIC SUBMITTED A PHOTO OF THEIR RAIN GAUGE
            THIS MORNING AND STATED IT WAS THE EVENT
            TOTAL SO FAR.

&&

MAPLES

Local storm report, Jan 10, 1:12 PM CST, 3 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
112 PM CST FRI JAN 10 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1230 PM     HEAVY RAIN       AFFTON                  38.55N 90.33W
01/10/2020  M3.30 INCH       ST. LOUIS          MO   PUBLIC

            EVENT TOTAL SO FAR. SUBMITTED VIA SOCIAL
            MEDIA.

&&

MAPLES

Local storm report, Jan 10, 1:13 PM CST, 3 hours 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
113 PM CST FRI JAN 10 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1106 AM     HEAVY RAIN       2 SE TRENTON            38.59N 89.66W
01/10/2020  M1.56 INCH       CLINTON            IL   PUBLIC

            EVENT TOTAL SO FAR. REPORT SUBMITTED VIA WEB
            FORM.

&&

MAPLES

Local storm report, Jan 10, 1:16 PM CST, 3 hours 40 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE ST LOUIS MO
116 PM CST FRI JAN 10 2020

LSR INFORMATION RECEIVED THROUGH EARLY AFTERNOON 1/10/20

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0844 AM     HEAVY RAIN       WASHINGTON              38.55N 91.01W
01/10/2020  M1.00 INCH       FRANKLIN           MO   PUBLIC

            REPORT RELAYED BY BROADCAST MEDIA.

0846 AM     HEAVY RAIN       SAINT PETERS            38.78N 90.61W
01/10/2020  M1.00 INCH       ST. CHARLES        MO   PUBLIC

            REPORT RELAYED BY BROADCAST MEDIA.

1143 PM     HEAVY RAIN       1 NW MURPHY             38.51N 90.50W
01/09/2020  M1.05 INCH       ST. LOUIS          MO   PUBLIC

0730 AM     HEAVY RAIN       UNION                   38.45N 91.01W
01/10/2020  M1.20 INCH       FRANKLIN           MO   PUBLIC

            REPORT RELAYED BY BROADCAST MEDIA.

1215 AM     HEAVY RAIN       GREENVILLE              38.89N 89.41W
01/10/2020  M1.25 INCH       BOND               IL   PUBLIC

0847 AM     HEAVY RAIN       2 NW WOOD RIVER         38.88N 90.11W
01/10/2020  M1.30 INCH       MADISON            IL   PUBLIC

            REPORT RELAYED BY BROADCAST MEDIA.

0610 AM     HEAVY RAIN       MASCOUTAH               38.51N 89.81W
01/10/2020  M1.50 INCH       ST. CLAIR          IL   BROADCAST MEDIA

0600 AM     HEAVY RAIN       2 E RICHMOND HEIGHTS    38.63N 90.29W
01/10/2020  M1.50 INCH       ST. LOUIS CITY     MO   PUBLIC

            12-HOUR TOTAL.

0922 AM     HEAVY RAIN       1 S MARYLAND HEIGHTS    38.71N 90.48W
01/10/2020  M1.50 INCH       ST. LOUIS          MO   TRAINED SPOTTER

            SPOTTER REPORTS 1.5 INCHES OF RAIN JUST EAST
            OF CREVE COEUR LAKE IN MARYLAND HEIGHTS.
            RAIN HAS ENDED AT THIS TIME.

1106 AM     HEAVY RAIN       2 SE TRENTON            38.59N 89.66W
01/10/2020  M1.56 INCH       CLINTON            IL   PUBLIC

            EVENT TOTAL SO FAR. REPORT SUBMITTED VIA WEB
            FORM.

0845 AM     HEAVY RAIN       MAPLEWOOD               38.61N 90.32W
01/10/2020  M1.60 INCH       ST. LOUIS          MO   PUBLIC

            REPORT RELAYED BY BROADCAST MEDIA.

1008 AM     HEAVY RAIN       2 NW SWANSEA            38.55N 90.02W
01/10/2020  M1.75 INCH       ST. CLAIR          IL   PUBLIC

0946 AM     HEAVY RAIN       2 NE GRANITE CITY       38.73N 90.10W
01/10/2020  M1.80 INCH       MADISON            IL   PUBLIC

0600 AM     HEAVY RAIN       3 NNW ARNOLD            38.48N 90.39W
01/10/2020  M1.88 INCH       ST. LOUIS          MO   BROADCAST MEDIA

0725 AM     HEAVY RAIN       FENTON                  38.54N 90.45W
01/10/2020  M1.94 INCH       ST. LOUIS          MO   PUBLIC

            REPORT RELAYED BY BROADCAST MEDIA.

1100 AM     HEAVY RAIN       VANDALIA                38.98N 89.10W
01/10/2020  M2.00 INCH       FAYETTE            IL   PUBLIC

            EVENT TOTAL THROUGH 11 A.M. SUBMITTED VIA
            SOCIAL MEDIA.

0845 AM     HEAVY RAIN       SAINT CLAIR             38.35N 90.98W
01/10/2020  M2.00 INCH       FRANKLIN           MO   PUBLIC

            REPORT RELAYED BY BROADCAST MEDIA.

0906 AM     HEAVY RAIN       CEDAR HILL              38.36N 90.64W
01/10/2020  M2.00 INCH       JEFFERSON          MO   TRAINED SPOTTER

            SPOTTER REPORTS 2 INCHES OF RAIN FELL
            OVERNIGHT.

0804 AM     HEAVY RAIN       1 SW FENTON             38.53N 90.47W
01/10/2020  M2.04 INCH       ST. LOUIS          MO   PUBLIC

1030 AM     HEAVY RAIN       WARSON WOODS            38.61N 90.39W
01/10/2020  M2.05 INCH       ST. LOUIS          MO   PUBLIC

            EVENT TOTAL THROUGH 1030 AM. REPORT RELAYED
            VIA SOCIAL MEDIA.

0730 AM     HEAVY RAIN       3 NNW ARNOLD            38.47N 90.39W
01/10/2020  M2.20 INCH       ST. LOUIS          MO   PUBLIC

            REPORT RELAYED BY BROADCAST MEDIA.

0900 AM     HEAVY RAIN       COLLINSVILLE            38.68N 90.00W
01/10/2020  M2.25 INCH       MADISON            IL   PUBLIC

            EVENT TOTAL SO FAR. PUBLIC REPORT SUBMITTED
            VIA SOCIAL MEDIA.

0813 AM     HEAVY RAIN       CATAWISSA               38.43N 90.78W
01/10/2020  M2.50 INCH       FRANKLIN           MO   TRAINED SPOTTER

0850 AM     HEAVY RAIN       CASEYVILLE              38.63N 90.03W
01/10/2020  M2.75 INCH       ST. CLAIR          IL   TRAINED SPOTTER

            24 HOUR TOTAL. STILL RAINING.

0930 AM     HEAVY RAIN       PACIFIC                 38.48N 90.75W
01/10/2020  M2.90 INCH       FRANKLIN           MO   PUBLIC

            PUBLIC SUBMITTED A PHOTO OF THEIR RAIN GAUGE
            THIS MORNING AND STATED IT WAS THE EVENT
            TOTAL SO FAR.

0735 AM     HEAVY RAIN       SCOTSDALE               38.40N 90.59W
01/10/2020  M2.90 INCH       JEFFERSON          MO   PUBLIC

            REPORT RELAYED BY BROADCAST MEDIA.

1145 AM     HEAVY RAIN       UNION                   38.45N 91.01W
01/10/2020  M3.20 INCH       FRANKLIN           MO   PUBLIC

            EVENT TOTAL SO FAR. SUBMITTED VIA SOCIAL
            MEDIA.

1230 PM     HEAVY RAIN       AFFTON                  38.55N 90.33W
01/10/2020  M3.30 INCH       ST. LOUIS          MO   PUBLIC

            EVENT TOTAL SO FAR. SUBMITTED VIA SOCIAL
            MEDIA.

&&

Local storm report, Jan 10, 2:40 PM CST, 2 hours 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
240 PM CST FRI JAN 10 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 PM     HEAVY RAIN       2 SW MINERAL POINT      37.92N 90.75W
01/10/2020  M1.38 INCH       WASHINGTON         MO   TRAINED SPOTTER

            STORM TOTAL THROUGH 230 PM.

&&

MAPLES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 10, 3:58 AM CST	Winter Storm Warning	LSX	Knox, Lewis, Marion, Monroe, Shelby	40 hr
Jan 10, 3:58 AM CST	Winter Weather Advisory	LSX	Audrain, Boone, Callaway, Cole, Crawford, Franklin and 13 more	41 hr
Jan 10, 9:11 AM CST	River Flood Warning	LSX	Osage	59 hr
Jan 10, 9:40 AM CST	River Flood Warning	LSX	Cole, Osage	3 days
Jan 10, 9:40 AM CST	River Flood Warning	LSX	Callaway, Osage	4 days
Jan 10, 9:40 AM CST	River Flood Warning	LSX	Gasconade, Montgomery	5 days
Jan 10, 9:40 AM CST	River Flood Warning	LSX	Gasconade, Montgomery	4 days
Jan 10, 10:11 AM CST	River Flood Warning	LSX	Jefferson	4 days
Jan 10, 10:11 AM CST	River Flood Warning	LSX	Franklin	5 days
Jan 10, 10:11 AM CST	River Flood Warning	LSX	Crawford, Washington	3 days
Jan 10, 10:11 AM CST	River Flood Warning	LSX	Franklin, Jefferson	5 days
Jan 10, 10:11 AM CST	River Flood Warning	LSX	Jefferson, Saint Louis	5 days
Jan 10, 10:11 AM CST	River Flood Warning	LSX	Jefferson, Saint Louis	7 days
Jan 10, 10:11 AM CST	River Flood Warning	LSX	Jefferson, Saint Louis	6 days
Jan 10, 10:17 AM CST	River Flood Warning	LSX	Reynolds	71 hr
Jan 10, 10:38 AM CST	River Flood Warning	LSX	Saint Charles	47 hr
Jan 10, 10:38 AM CST	River Flood Warning	LSX	Marion	27 hr
Jan 10, 5:58 PM CST	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Lincoln, Montgomery, Osage, Warren	47 min
Jan 10, 4:51 PM CST	Areal Flood Warning	LSX	Bond, Clinton, Madison, Saint Clair, Washington	21 hr

Nearby

Areal Flood Warnings in Illinois, 2020 Every areal flood warning in 2020

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.