Alert archive / Minnesota / Areal Flood Warnings in 2014

Areal Flood Warning 6, NWS Sioux Falls, SD

June 19, 2014Lyon County, Minnesota

NWS Sioux Falls, SD issued this areal flood warning at Jun 19, 2014, 8:27 AM CDT for Lyon County, Minnesota. 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: Jun 19, 2014, 8:27 AM CDT (13:27 UTC)
Expired: Jun 19, 2014, 8:30 PM CDT
In force: 12 hr
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: None

County Lyon County, MN

The radar

The Sioux Falls radar (KFSD), 116 km from the middle of the area, began a volume at 13:29 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

Aberdeen, SD (KABR), launched 12:00Z, 1.5 hours before the alert went out and 210 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: 49 J/kg
Mixed-layer CIN: -189 J/kg
Mixed-layer LCL: 836 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 2 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 Sioux Falls, SD wrote its last area forecast discussion before this areal flood warning went out at Jun 19, 6:31 AM CDT, 1 hour 56 minutes earlier.

Area forecast discussion, Jun 19, 6:31 AM CDT, 1 hour 56 minutes before

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Hazardous weather outlook, Jun 19, 6:38 AM CDT, 1 hour 49 minutes before

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In the hours before

Local storm report, Jun 19, 5:11 AM CDT, 3 hours 16 minutes before

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Local storm report, Jun 19, 8:00 AM CDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
800 AM CDT THU JUN 19 2014

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

0745 AM     FLASH FLOOD      COTTONWOOD              44.61N 95.67W
06/19/2014                   LYON               MN   LAW ENFORCEMENT

            ONCOING WIDESPREAD STREET FLOODING IN COTTONWOOD WITH
            SANDBAGGING EFFORTS CONTINUING. NEARBY COUNTY ROADS ALSO
            FLOODED.

&&

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 7:25 PM CDT	Tornado Warning Tornado observed	FSD	Beadle, Jerauld	50 min
Jun 18, 7:42 PM CDT	Tornado Warning	FSD	Aurora, Beadle, Jerauld, Sanborn	48 min
Jun 18, 8:00 PM CDT	Tornado Warning Tornado observed	FSD	Beadle, Jerauld, Sanborn	45 min
Jun 18, 8:18 PM CDT	Tornado Warning	FSD	Beadle, Sanborn	42 min
Jun 18, 8:38 PM CDT	Tornado Warning	FSD	Beadle	37 min
Jun 18, 9:06 PM CDT	Tornado Warning	FSD	Beadle	24 min
Jun 19, 1:20 AM CDT	Severe Thunderstorm Warning	FSD	Clay	40 min
Jun 19, 3:28 AM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Miner, Sanborn	47 min
Jun 19, 9:49 AM CDT	River Flood Warning	FSD	Clay, Dickinson	6 days
Jun 19, 1:28 PM CDT	Tornado Warning	FSD	Clay, Dickinson	32 min
Jun 18, 9:49 PM CDT	Tornado Warning	FSD	Lyon	41 min
Jun 18, 10:28 PM CDT	Tornado Warning Tornado observed	FSD	Lyon	32 min
Jun 18, 10:30 PM CDT	Tornado Warning	FSD	Lyon	30 min
Jun 18, 10:33 PM CDT	Flash Flood Warning	FSD	Lyon	10 hr

Nearby

Areal Flood Warnings in Minnesota, 2014 Every areal flood warning in 2014

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.