Alert archive / South Dakota / Special Weather Statements in 2017

Special Weather Statement, NWS Aberdeen, SD

May 28, 2017Codington County, Grant County, Roberts County, South Dakota; Big Stone County, Traverse County, Minnesota

NWS Aberdeen, SD issued this special weather statement at May 28, 2017, 4:16 PM CDT for Codington County, Grant County, Roberts County, South Dakota; Big Stone County, Traverse County, Minnesota. It was in force for 29 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
May 28, 2017, 4:16 PM CDT (21:16 UTC)
Expired
May 28, 2017, 4:45 PM CDT
In force
29 min
Issued by
NWS Aberdeen, SD

Counties Big Stone County, MN, Traverse County, MN, Codington County, SD, Grant County, SD, Roberts County, SD

The radar

The Aberdeen radar (KABR), 122 km from the middle of the area, began a volume at 21:19 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, 9.3 hours before the alert went out and 136 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-pSkew-T log-p diagram, Aberdeen, SD at 12:00Z on 2017-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2017-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2208 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 May 28, 2:50 PM CDT, 1 hour 26 minutes earlier.

Area forecast discussion, May 28, 2:50 PM CDT, 1 hour 26 minutes before
Area Forecast Discussion
National Weather Service Aberdeen SD
250 PM CDT Sun May 28 2017

.SHORT TERM...(This Evening through Monday Afternoon)
Issued at 249 PM CDT Sun May 28 2017

Shortwave activity on the back of an upper trough is generating some
showers and thunderstorms across the region this afternoon. Some of
these showers have been producing 50 mph wind gusts and small hail.
Showers and thunderstorms will taper off this evening after sunset.
Skies will clear by midnight and temps will fall off rapidly. Nudged
overnight lows a bit lower than guidance given the low dewpoints.

As the upper trough pushes further south tonight and Monday, low
clouds will move over the eastern Dakotas. Steadier light rain or
drizzle is possible east of the James River for Memorial Day. Temps
will cool across the area tomorrow, as well, with highs only in the
60s expected. Winds, however, will increase out of the northwest
again and remain gusty especially across the eastern cwa.

.LONG TERM...(Monday Evening through Sunday)
Issued at 249 PM CDT Sun May 28 2017

Will continue to advertise temperatures a tick below blended
guidance for Tuesday and Wednesday mornings as Canadian high pressure
settles overhead with 850mb temperatures bottoming out across the
forecast area between +1 and +4C, about a standard deviation below
climo.

Will maintain blended guidance as GFS BUFKIT soundings support
elevated instability and a low level jet early Thursday.
Temperatures remain cool in the mid levels, but will be warming as
there is upper ridging moves out of the Rockies and into the plains
states.

As the previous forecaster also alluded to, there is trough that will
attempt to push through the upper ridge across the center of the
nation. Guidance continues to generate some convection surrounding
this feature, though models diverge on how to best handle this
feature as it is expected to weaken as it moves overhead with the
possibility that the upper ridge re-strengthens in its wake as we see
an upper low deepen over the Pacific Northwest.

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday Afternoon)
Issued at 1225 PM CDT Sun May 28 2017

VFR conditions are expected through tonight. Scattered showers and
some isolated thunder are expected this afternoon and evening. MVFR
stratus will push south into eastern SD Monday morning and
potentially affect KATY and KABR.

&&

.ABR WATCHES/WARNINGS/ADVISORIES...
SD...None.
MN...None.
&&

SHORT TERM...Wise
LONG TERM...Connelly
AVIATION...Wise
Hazardous weather outlook, May 28, 4:28 AM CDT, 11 hours 48 minutes before
Hazardous Weather Outlook
National Weather Service Aberdeen SD
428 AM CDT Sun May 28 2017

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-290930-
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-
428 AM CDT Sun May 28 2017 /328 AM MDT Sun May 28 2017/

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

Widely scattered afternoon showers and thunderstorms are forecast
across the region today. The more organized showers and storms
that develop will be capable of producing gusty winds in excess of
40 or 50 mph.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

TMT

In the hours before

Local storm report, May 28, 3:16 PM CDT, 1 hour before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
316 PM CDT SUN MAY 28 2017

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

0240 PM     TSTM WND GST     11 S BULLHEAD           45.61N 101.06W
05/28/2017  M57 MPH          CORSON             SD   MESONET

            RADAR ESTIMATED TIME.

&&

RL
Special weather statement, May 28, 3:31 PM CDT, 45 minutes before
Special Weather Statement
National Weather Service Aberdeen SD
331 PM CDT SUN MAY 28 2017

SDZ015-016-033>035-045-282115-
Hughes SD-Stanley SD-Dewey SD-Sully SD-Potter SD-Jones SD-
331 PM CDT SUN MAY 28 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN JONES...SULLY...
STANLEY...SOUTHWESTERN POTTER...SOUTHEASTERN DEWEY AND NORTHWESTERN
HUGHES COUNTIES UNTIL 415 PM CDT/315 PM MDT/...

At 331 PM CDT/231 PM MDT/, Doppler radar was tracking strong
thunderstorms along a line extending from Swiftbird Day School to 12
miles northwest of Sansarc. Movement was southeast at 50 mph.

Wind gusts up to 50 mph will be possible with these storms.

Locations impacted include...
Pierre, Fort Pierre, Onida, Blunt, Agar, Bush'S Landing, Swiftbird,
Spring Creek Rec Area, Little Bend Rec Area, Brown Church, Laplant,
Hayes, Ridgeview, Sansarc, Tiospaye Topa School, Swiftbird Day
School, Van Metre, West Shore Rec Area, southern Lake Oahe and Grey
Goose.

LAT...LON 4494 10114 4525 10057 4463 9972 4406 10096
      4439 10116
TIME...MOT...LOC 2031Z 319DEG 45KT 4509 10042 4468 10115

Lueck
Local storm report, May 28, 3:37 PM CDT, 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
337 PM CDT SUN MAY 28 2017

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

0330 PM     TSTM WND GST     PIERPONT                45.50N 97.83W
05/28/2017  E50 MPH          DAY                SD   LAW ENFORCEMENT

&&

RL
Special weather statement, May 28, 3:39 PM CDT, 37 minutes before
Special Weather Statement
National Weather Service Aberdeen SD
339 PM CDT SUN MAY 28 2017

SDZ007-008-011-018>021-282115-
Marshall SD-Clark SD-Spink SD-Grant SD-Day SD-Codington SD-
Roberts SD-
339 PM CDT SUN MAY 28 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN ROBERTS...DAY...
SOUTHEASTERN MARSHALL...WESTERN GRANT...NORTHERN CLARK...EASTERN
SPINK AND NORTHWESTERN CODINGTON COUNTIES UNTIL 415 PM CDT...

At 339 PM CDT, the public reported strong thunderstorms along a line
extending from 7 miles west of Opitz Lake to near Crandall. Movement
was east at 50 mph.

Wind gusts of 50 to 55 mph will be possible with these storms.

Locations impacted include...
Webster, Waubay, Florence, Bristol, Henry, Roslyn, Wallace, Bradley,
Ortley, Grenville, Garden City, Butler, Lily, Crandall, Crocker,
Finley Heights Housing, Grass Lake, Swan Lake, Rudebusch Corner and
Blue Dog Lake.

LAT...LON 4553 9700 4487 9747 4508 9806 4566 9766
TIME...MOT...LOC 2039Z 285DEG 51KT 4556 9764 4519 9794

Connelly
Special weather statement, May 28, 3:41 PM CDT, 35 minutes before
Special Weather Statement
National Weather Service Aberdeen SD
341 PM CDT SUN MAY 28 2017

SDZ005-006-010-282130-
Brown SD-McPherson SD-Edmunds SD-
341 PM CDT SUN MAY 28 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN EDMUNDS...
NORTHWESTERN BROWN AND EASTERN MCPHERSON COUNTIES UNTIL 430 PM CDT...

At 341 PM CDT, Doppler radar was tracking a strong thunderstorm near
Spring Creek Colony, or 18 miles southeast of Ashley, moving
southeast at 50 mph.

Dime size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

Locations impacted include...
Leola, Frederick, Westport, Forbes, Long Lake, Wetonka, Barnard,
Plainview Colony, Mina, Grassland Colony, Mina Lake Rec Area, Elm
Lake, Spring Creek Colony, Long Lake Colony, Deerfield Colony, Sand
Lake Wildlife Refuge and Richmond Lake Rec Area.

LAT...LON 4576 9822 4538 9878 4594 9953 4594 9854
TIME...MOT...LOC 2041Z 319DEG 43KT 4591 9902

Lueck
Special weather statement, May 28, 4:16 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Aberdeen SD
416 PM CDT SUN MAY 28 2017

MNZ039-046-SDZ007-008-020>023-282145-
Traverse MN-Big Stone MN-Marshall SD-Hamlin SD-Deuel SD-Grant SD-
Codington SD-Roberts SD-
416 PM CDT SUN MAY 28 2017

...SIGNIFICANT WEATHER ADVISORY FOR TRAVERSE...WESTERN BIG STONE...
NORTHWESTERN DEUEL...ROBERTS...SOUTHEASTERN DAY...EASTERN MARSHALL...
NORTHEASTERN HAMLIN...GRANT AND CODINGTON COUNTIES UNTIL 445 PM
CDT...

At 416 PM CDT, the public reported strong thunderstorms along a line
extending from near New Effington to near Goose Lake. Movement was
southeast at 55 mph.

Wind gusts of 50 to 55 mph will be possible with these storms.

Locations impacted include...
Watertown, Milbank, Sisseton, Ortonville, Wheaton, Big Stone City,
Castlewood, Browns Valley, Graceville, Veblen, Wilmot, Clinton,
Rosholt, Florence, Summit, Rauville, Henry, New Effington, Beardsley
and South Shore.

LAT...LON 4602 9657 4573 9638 4526 9638 4527 9645
      4512 9645 4461 9689 4486 9749 4515 9729
      4516 9722 4555 9723 4593 9750 4594 9656
TIME...MOT...LOC 2116Z 295DEG 49KT 4578 9692 4478 9729

Connelly

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 7:56 PM CDTSpecial Weather StatementABRCampbell, Dewey, McPherson, Walworth49 min
May 28, 2:52 PM CDTSpecial Weather StatementABRDewey38 min
May 28, 2:56 PM CDTSpecial Weather StatementABRCorson49 min
May 28, 2:59 PM CDTSpecial Weather StatementABRBrown46 min
May 28, 3:31 PM CDTSpecial Weather StatementABRStanley, Sully44 min
May 28, 3:39 PM CDTSpecial Weather StatementABRDay36 min
May 28, 3:41 PM CDTSpecial Weather StatementABRMcPherson49 min
May 28, 4:26 PM CDTSevere Thunderstorm WarningABRBrown, Day, Edmunds, Spink34 min
May 28, 4:36 PM CDTSpecial Weather StatementABREdmunds39 min
May 28, 4:54 PM CDTSevere Thunderstorm WarningABRBrown, Clark, Codington, Day, Spink36 min
May 28, 5:20 PM CDTSpecial Weather StatementABRMarshall25 min
May 28, 5:25 PM CDTSevere Thunderstorm WarningABRClark, Codington, Deuel, Hamlin, Spink50 min
May 28, 6:24 PM CDTSpecial Weather StatementABRFaulk, Hand51 min
May 28, 6:58 PM CDTSpecial Weather StatementABRSpink32 min

Nearby

Special Weather Statements in South Dakota, 2017Special Weather Statements in Minnesota, 2017Every special weather statement in 2017

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.