Alert archive / South Dakota / Areal Flood Warnings in 2014

Areal Flood Warning 13, NWS Aberdeen, SD

August 24, 2014Edmunds County, Faulk County, McPherson County, South Dakota

NWS Aberdeen, SD issued this areal flood warning at Aug 24, 2014, 1:41 AM CDT for Edmunds County, Faulk County, McPherson County, South Dakota. It was in force for 27 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: Aug 24, 2014, 1:41 AM CDT (06:41 UTC)
Expired: Aug 25, 2014, 4:30 AM CDT
In force: 27 hr
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Flood severity: None

Counties Edmunds County, SD, Faulk County, SD, McPherson County, SD

The radar

The Aberdeen radar (KABR), 61 km from the middle of the area, began a volume at 06:45 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 00:00Z, 6.7 hours before the alert went out and 85 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: 525 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 717 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 196 m²/s²
0-3 km storm-relative helicity: 330 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.4

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 Aberdeen, SD wrote its last area forecast discussion before this areal flood warning went out at Aug 24, 12:49 AM CDT, 52 minutes earlier.

Area forecast discussion, Aug 24, 12:49 AM CDT, 52 minutes before

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Hazardous weather outlook, Aug 23, 4:40 AM CDT, 21 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
440 AM CDT SAT AUG 23 2014

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-240945-
TRAVERSE-BIG STONE-CORSON-CAMPBELL-MCPHERSON-BROWN-MARSHALL-
ROBERTS-WALWORTH-EDMUNDS-DAY-DEWEY-POTTER-FAULK-SPINK-CLARK-
CODINGTON-GRANT-HAMLIN-DEUEL-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES-
LYMAN-BUFFALO-
440 AM CDT SAT AUG 23 2014 /340 AM MDT SAT AUG 23 2014/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
MINNESOTA...CENTRAL SOUTH DAKOTA...NORTH CENTRAL SOUTH DAKOTA AND
NORTHEAST SOUTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

WIDESPREAD SHOWERS AND THUNDERSTORMS WILL OCCUR ACROSS THE AREA
TODAY. HEAVY RAINFALL IS POSSIBLE IN SOME AREAS...WITH LOCALIZED
FLOODING. STRONG TO SEVERE STORMS ARE POSSIBLE THIS AFTERNOON
TOO...MAINLY ACROSS EASTERN PORTIONS OF THE FORECAST AREA. LARGE
HAIL IS POSSIBLE...AS WELL AS A FEW TORNADOES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON AND EVENING.

TMT

In the hours before

Local storm report, Aug 23, 11:06 PM CDT, 2 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1106 PM CDT SAT AUG 23 2014

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

1106 PM     HEAVY RAIN       IPSWICH                 45.44N  99.03W
08/23/2014  M3.29 INCH       EDMUNDS            SD   CO-OP OBSERVER

&&

EVENT NUMBER ABR1400654

KG

Local storm report, Aug 23, 11:47 PM CDT, 1 hour 54 minutes before

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Local storm report, Aug 23, 11:51 PM CDT, 1 hour 50 minutes before

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Local storm report, Aug 24, 12:05 AM CDT, 1 hour 36 minutes before

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Local storm report, Aug 24, 12:22 AM CDT, 1 hour 19 minutes before

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Special weather statement, Aug 24, 12:41 AM CDT, 1 hour before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 7:24 PM CDT	Flash Flood Warning	ABR	Edmunds, Faulk, McPherson	6 hr
Aug 23, 10:43 PM CDT	Special Weather Statement	ABR	Clark	62 min
Aug 23, 11:38 PM CDT	Flash Flood Warning	ABR	Brown	6 hr
Aug 24, 12:41 AM CDT	Special Weather Statement	ABR	Deuel, Grant, Roberts	49 min
Aug 24, 5:20 AM CDT	Areal Flood Warning	ABR	Brown	27 hr
Aug 24, 1:10 PM CDT	River Flood Warning	ABR	Corson	42 hr
Aug 24, 1:59 AM CDT	Areal Flood Warning	ABR	Traverse	24 hr

Nearby

Areal Flood Warnings in South Dakota, 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.