Alert archive / South Dakota / Special Weather Statements in 2015

Special Weather Statement, NWS Aberdeen, SD

August 5, 2015Brown County, South Dakota

NWS Aberdeen, SD issued this special weather statement at Aug 5, 2015, 11:42 PM CDT for Brown County, South Dakota. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 5, 2015, 11:42 PM CDT (04:42 UTC)
Expired: Aug 6, 2015, 12:30 AM CDT
In force: 48 min
Issued by: NWS Aberdeen, SD

County Brown County, SD

The radar

The Aberdeen radar (KABR), 35 km from the middle of the area, began a volume at 04:46 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, 4.7 hours before the alert went out and 96 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: 91 J/kg
Mixed-layer CIN: -169 J/kg
Mixed-layer LCL: 1609 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 204 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 5, 9:17 PM CDT, 2 hours 25 minutes earlier.

Area forecast discussion, Aug 5, 9:17 PM CDT, 2 hours 25 minutes before

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</head>
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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Aug 5, 4:13 AM CDT, 19 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
413 AM CDT WED AUG 5 2015

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-060915-
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-
413 AM CDT WED AUG 5 2015

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

ISOLATED THUNDERSTORMS ARE POSSIBLE TODAY ALONG THE NORTH
DAKOTA...SOUTH DAKOTA BORDER. SEVERE STORMS ARE NOT EXPECTED.

ADDITIONAL THUNDERSTORMS ARE POSSIBLE LATER TONIGHT FOR LOCATIONS
ALONG AND WEST OF THE JAMES RIVER VALLEY. WHILE WIDESPREAD SEVERE
STORMS ARE NOT EXPECTED...SOME THUNDERSTORMS COULD PRODUCE SMALL
HAIL AND GUSTY WINDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SEVERE THUNDERSTORMS ARE POSSIBLE THURSDAY AFTERNOON...ESPECIALLY
FOR LOCATIONS EAST OF THE JAMES RIVER VALLEY. HAIL...DAMAGING
WINDS...AND EVEN TORNADOES ARE POSSIBLE. AT THIS TIME...THE FAR
NORTHEAST PORTION OF SOUTH DAKOTA...OR THE SISSETON AREA WILL
HAVE THE BEST TORNADO THREAT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

SD

In the hours before

Local storm report, Aug 5, 8:16 PM CDT, 3 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
816 PM CDT WED AUG 05 2015

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

0421 PM     HAIL             4 NNW AKASKA            45.38N 100.15W
08/05/2015  E1.00 INCH       WALWORTH           SD   PUBLIC

            REPORT RELAYED VIA NSSL SHAVE

&&

EVENT NUMBER ABR1500733

LUECK

Special weather statement, Aug 5, 11:42 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
1142 PM CDT WED AUG 5 2015

SDZ006-060530-
BROWN SD-
1142 PM CDT WED AUG 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN BROWN COUNTY UNTIL 1230
AM CDT...

AT 1142 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR BARNARD...OR 15 MILES SOUTH OF ELLENDALE...MOVING EAST AT 30
MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
HECLA...FREDERICK...HOUGHTON...BARNARD AND SAND LAKE WILDLIFE REFUGE.

LAT...LON 4571 9861 4588 9859 4591 9805 4562 9804
TIME...MOT...LOC 0442Z 273DEG 25KT 4578 9849

PARKIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 12:02 AM CDT	Severe Thunderstorm Warning	ABR	Brown	26 min
Aug 6, 12:31 AM CDT	Special Weather Statement	ABR	Brown	59 min
Aug 6, 12:51 AM CDT	Severe Thunderstorm Warning	ABR	Brown	39 min
Aug 6, 1:30 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall	60 min
Aug 6, 2:28 AM CDT	Special Weather Statement	ABR	Day	62 min
Aug 6, 3:21 AM CDT	Flash Flood Warning	ABR	Brown	6 hr
Aug 6, 9:26 AM CDT	Areal Flood Warning	ABR	Brown	24 hr
Aug 6, 11:07 AM CDT	Flash Flood Watch	ABR	Brown, Day, Edmunds, McPherson, Marshall, Roberts	7 hr
Aug 6, 2:49 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Hamlin	56 min
Aug 6, 3:16 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Hamlin	43 min
Aug 6, 4:39 PM CDT	Special Weather Statement	ABR	Deuel	21 min
Aug 6, 5:10 PM CDT	Areal Flood Warning	ABR	Deuel	6 hr

Nearby

Special Weather Statements in South Dakota, 2015 Every special weather statement 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.