Alert archive / Missouri / Areal Flood Warnings in 2015

Areal Flood Warning 52, NWS St. Louis, MO

November 17, 201511 counties in Missouri

NWS St. Louis, MO issued this areal flood warning at Nov 17, 2015, 9:42 PM CST for 11 counties in Missouri. It was in force for 12 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: Nov 17, 2015, 9:42 PM CST (03:42 UTC)
Expired: Nov 18, 2015, 9:30 AM CST
In force: 12 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Boone County, MO, Callaway County, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Moniteau County, MO, Montgomery County, MO, Osage County, MO, Saint Charles County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 85 km from the middle of the area, began a volume at 03:44 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.7 hours before the alert went out and 313 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: 709 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 545 m²/s²
0-3 km storm-relative helicity: 576 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 Nov 17, 9:32 PM CST, 10 minutes earlier.

Area forecast discussion, Nov 17, 9:32 PM CST, 10 minutes before

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Hazardous weather outlook, Nov 17, 8:10 PM CST, 1 hour 32 minutes before

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In the hours before

Local storm report, Nov 17, 4:42 PM CST, 5 hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
442 PM CST TUE NOV 17 2015

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

0420 PM     HEAVY RAIN       BELLEVILLE              38.53N  90.00W
11/17/2015  M1.91 INCH       ST. CLAIR          IL   BROADCAST MEDIA

            ON EAST SIDE OF BELLEVILLE. REPORT FROM FOX 2.

0420 PM     HEAVY RAIN       NEW HAVEN               38.61N  91.22W
11/17/2015  M5.00 INCH       FRANKLIN           MO   BROADCAST MEDIA

            FROM FOX 2

0420 PM     HEAVY RAIN       MARISSA                 38.26N  89.75W
11/17/2015  E1.81 INCH       ST. CLAIR          IL   BROADCAST MEDIA

            FROM FOX 2

&&

TRUETT

Local storm report, Nov 17, 4:49 PM CST, 4 hours 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
449 PM CST TUE NOV 17 2015

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

0448 PM     HEAVY RAIN       JEFFERSON CITY          38.57N  92.19W
11/17/2015  M6.00 INCH       COLE               MO   TRAINED SPOTTER

            STORM TOTAL SO FAR SINCE YESTERDAY MORNING. STILL
            RAINING.

&&

DYE

Local storm report, Nov 17, 6:08 PM CST, 3 hours 34 minutes before

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Local storm report, Nov 17, 6:16 PM CST, 3 hours 26 minutes before

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Local storm report, Nov 17, 6:19 PM CST, 3 hours 23 minutes before

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Local storm report, Nov 17, 6:48 PM CST, 2 hours 54 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
Nov 17, 6:51 PM CST	Areal Flood Warning	LSX	Audrain, Callaway, Lincoln, Monroe, Montgomery, Pike and 2 more	12 hr
Nov 17, 7:59 PM CST	Areal Flood Warning	LSX	Franklin, Iron, Jefferson, Madison, Sainte Genevieve, Saint Francois and 1 more	12 hr
Nov 17, 10:57 PM CST	Areal Flood Warning	LSX	Audrain, Monroe	9 hr
Nov 17, 11:13 PM CST	Areal Flood Warning	LSX	Iron, Reynolds	9 hr
Nov 18, 5:36 AM CST	River Flood Warning	LSX	Osage	28 hr
Nov 18, 10:16 AM CST	River Flood Warning	LSX	Crawford	51 hr

Nearby

Areal Flood Warnings in Missouri, 2015 Every areal flood warning in 2015

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.