Alert archive / South Dakota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 29, NWS Aberdeen, SD

June 13, 2017Codington County, Hamlin County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 13, 2017, 7:07 AM CDT for Codington County, Hamlin County, South Dakota. It was in force for 25 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 13, 2017, 7:07 AM CDT (12:07 UTC)
Expired: Jun 13, 2017, 7:32 AM CDT
In force: 25 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Codington County, SD, Hamlin County, SD

The radar

The Sioux Falls radar (KFSD), 124 km from the middle of the area, began a volume at 12:06 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.

What was reported inside it

Time	Report	Where	Remark
Jun 13, 7:10 AM CDT	HAIL 0.88	1 Wnw Lake Norden, SD	RADAR ESTIMATED TIME.
Jun 13, 7:10 AM CDT	HAIL 0.88	3 W Lake Norden, SD	RADAR ESTIMATED TIME.
Jun 13, 7:29 AM CDT	HAIL 0.75	3 Se Thomas, SD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 0.1 hours before the alert went out and 99 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: 1118 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: -220 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

340 
WUUS53 KABR 131207
SVRABR
SDC029-057-131245-
/O.NEW.KABR.SV.W.0029.170613T1207Z-170613T1245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Aberdeen SD
707 AM CDT TUE JUN 13 2017

The National Weather Service in Aberdeen has issued a

* Severe Thunderstorm Warning for...
  Central Hamlin County in northeastern South Dakota...
  South central Codington County in northeastern South Dakota...

* Until 745 AM CDT

* At 707 AM CDT, a severe thunderstorm was located near Hamlin
  Education Center, or 18 miles west of Estelline, moving northeast
  at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Watertown, Castlewood, Lake Norden, Hayti, Thomas, Pelican Lake,
  Sandy Shore Rec Area, Goose Lake, Lake Albert, Hamlin Education
  Center, Memorial Park Camping Site and Lake Kampeska.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4454 9716 4454 9734 4455 9736 4494 9725
      4479 9689
TIME...MOT...LOC 1207Z 208DEG 25KT 4461 9727 

HAIL...1.00IN
WIND...60MPH
 
$$

Mohr

1 follow-up statement

882 
WWUS53 KABR 131232
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
732 AM CDT TUE JUN 13 2017

SDC029-057-131241-
/O.CAN.KABR.SV.W.0029.000000T0000Z-170613T1245Z/
Hamlin SD-Codington SD-
732 AM CDT TUE JUN 13 2017

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HAMLIN AND SOUTH
CENTRAL CODINGTON COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled.

LAT...LON 4454 9716 4454 9734 4455 9736 4494 9725
      4479 9689
TIME...MOT...LOC 1229Z 208DEG 25KT 4476 9716 

$$

Mohr

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 13, 6:00 AM CDT, 1 hour 7 minutes earlier.

Area forecast discussion, Jun 13, 6:00 AM CDT, 1 hour 7 minutes before

Area Forecast Discussion
National Weather Service Aberdeen SD
600 AM CDT Tue Jun 13 2017

.UPDATE...
Issued at 558 AM CDT Tue Jun 13 2017

Just a quick update as the watch has been cancelled. Looks like we
are still on for severe weather this afternoon. The aforementioned
stratus that could have played spoiler-maker to the forecast has
yet to materialize, giving greater confidence on the potential for
severe weather this afternoon.

&&

.SHORT TERM...(Today through Tonight)
Issued at 215 AM CDT Tue Jun 13 2017

Convection, which features a line along the Missouri valley, with
additional discrete cells, continues to be the main focus of the
short term. Generally, CAMs support this to continue east/northeast
and crossing the CWA over the course of the overnight/early morning
hours supported by 30-40kt low level jet.

It gets a little trickier for later today once this convection has
weakened and moved northeast. For one, NAM BUFKIT profiles and
blended aviation guidance support the notion that this convection
will generate a stratus layer. We will also see 700mb temperatures
warm to +14C, and NAM BUFKIT profiles are capped through most of the
day. Thus, morning convection will be followed by a lull for much of
the day. A shortwave pivoting around the broad upper circulation to
the west will provide the upper support, though its also interesting
to note that a 70kt jet streak sets up just to the west, which
places us under the right exit region. Otherwise, there will be a
surface boundary over the James valley by the afternoon, and NAM/GFS
agree that the cap will shift to the east with the potential for
explosive development late this afternoon.

Severe weather looks to run the gamut, with strong - mostly
unidirectional southerly flow through the profile. 0-6km shear is on
the order of 50-60kts, and 0-1km upwards of 30kts, and MLCAPE
topping out above 3000j/kg. CAMs all generally come to this
consensus and we will be looking at additional severe weather east
of the James valley.

.LONG TERM...(Wednesday through Monday)
Issued at 215 AM CDT Tue Jun 13 2017

Upper low to the west slowly begins to lift northeast over the course
of Tuesday night into Wednesday/Wednesday night. There will be at
least one weak wave that pivots around this feature, with NAM BUFKIT
soundings showing some mid level ascent/moisture, but a dry subcloud
layer below 10kft. Cant rule out a sprinkle but generally this looks
like a dry scenario. Temperatures stay mild due to deep mixing in
westerly flow despite CAA.

Mostly zonal flow aloft is expected Thursday - Saturday with a shift
to more northwesterly flow. Blended guidance does generate some POPs
Saturday with a shortwave zipping across the northern tier CONUS.
Otherwise, this flow will result in more seasonal temperatures over
the course of the next few days, along with low humidity.

&&

.AVIATION...(For the 06Z TAFS through 06Z Tuesday Night)
Issued at 1230 AM CDT Tue Jun 13 2017

The potential remains for storms to impact the KPIR/KMBG terminals
shortly, before eventually moving towards KABR/KATY. Models also
show MVFR stratus may develop in the wake of these storms, and
linger for a portion of the morning in KPIR/KMBG and potentially
into the afternoon hours for KABR/KATY. If we clear, storms will
re-develop this afternoon/evening near KABR/KATY terminals as
well. Otherwise, VFR conditions will develop in the wake of this
system from west to east during the late morning/early afternoon
hours-and continue through the end of this TAF period.

&&

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

UPDATE...Connelly
SHORT TERM...Connelly
LONG TERM...Connelly
AVIATION...Connelly

Hazardous weather outlook, Jun 13, 5:25 AM CDT, 1 hour 42 minutes before

Hazardous Weather Outlook
National Weather Service Aberdeen SD
525 AM CDT Tue Jun 13 2017

MNZ039-046-SDZ007-008-011-019>023-141030-
Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant-
Hamlin-Deuel-
525 AM CDT Tue Jun 13 2017

This Hazardous Weather Outlook is for portions of west central
Minnesota and northeast South Dakota.

.DAY ONE...Today and Tonight

Thunderstorms will remain in the forecast this morning, and an
isolated severe storm or two could produce hail to quarter size.
Storms will redevelop this afternoon ahead of a cold front. The
threat storms pose this afternoon include large hail, strong
winds, and tornadoes.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested this afternoon.

SDZ005-006-010-017-018-036-037-051-141030-
McPherson-Brown-Edmunds-Faulk-Spink-Hyde-Hand-Buffalo-
525 AM CDT Tue Jun 13 2017

This Hazardous Weather Outlook is for portions of central South
Dakota, north central South Dakota, and northeast South Dakota.

.DAY ONE...Today and Tonight

Thunderstorms will remain in the forecast early today, however
severe weather is not expected for the rest of the morning hours.
Storms will redevelop this afternoon ahead of a cold front. Storms
that form this afternoon could generate large hail and strong
winds. An isolated tornado or two is also possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested this afternoon.

SDZ003-004-009-015-016-033>035-045-048-141030-
Corson-Campbell-Walworth-Dewey-Potter-Stanley-Sully-Hughes-Jones-
Lyman-
525 AM CDT Tue Jun 13 2017 /425 AM MDT Tue Jun 13 2017/

This Hazardous Weather Outlook is for portions of central South
Dakota and north central South Dakota.

.DAY ONE...Today and Tonight

Thunderstorms will remain in the forecast through the early
morning hours, however no severe weather is expected. Thunderstorm
chances will rapidly diminish through the mid to late morning
hours with dry conditions this afternoon.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

Connelly

In the hours before

Local storm report, Jun 13, 3:59 AM CDT, 3 hours 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
359 AM CDT TUE JUN 13 2017

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

0329 AM     TSTM WND GST     RICHMOND LAKE REC AREA  45.55N 98.61W
06/13/2017  M71 MPH          BROWN              SD   MESONET

&&

DM

Local storm report, Jun 13, 4:02 AM CDT, 3 hours 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
402 AM CDT TUE JUN 13 2017

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

0350 AM     HAIL             ABERDEEN                45.47N 98.48W
06/13/2017  E1.00 INCH       BROWN              SD   NWS EMPLOYEE

&&

DM

Local storm report, Jun 13, 4:04 AM CDT, 3 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
404 AM CDT TUE JUN 13 2017

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

0350 AM     HAIL             ABERDEEN                45.47N 98.48W
06/13/2017  E0.75 INCH       BROWN              SD   TRAINED SPOTTER

&&

DM

Local storm report, Jun 13, 4:09 AM CDT, 2 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
409 AM CDT TUE JUN 13 2017

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

0345 AM     TSTM WND DMG     ABERDEEN                45.47N 98.48W
06/13/2017                   BROWN              SD   PUBLIC

            SOME TREE LIMBS DOWN IN ABERDEEN.

&&

DM

Special weather statement, Jun 13, 4:15 AM CDT, 2 hours 52 minutes before

Special Weather Statement
National Weather Service Aberdeen SD
415 AM CDT TUE JUN 13 2017

SDZ006-007-011-131000-
Marshall SD-Brown SD-Day SD-
415 AM CDT TUE JUN 13 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN DAY...MARSHALL AND
NORTHEASTERN BROWN COUNTIES UNTIL 500 AM CDT...

At 415 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Ludden to near Claremont to 7 miles south
of Andover. Movement was northeast at 40 mph.

Half inch hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Britton, Veblen, Bristol, Langford, Hecla, Roslyn, Pierpont,
Claremont, Andover, Eden, Kidder, Grenville, Lake City, Buffalo
Lakes, Clear Lake Rec Area, Piyas Lake, Fort Sisseton State Park, Red
Iron Housing, Pickerel Lake Rec Area and Opitz Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

A severe thunderstorm watch remains in effect until 700 AM CDT for
northeastern South Dakota.

LAT...LON 4548 9725 4518 9797 4560 9802 4594 9825
      4593 9725
TIME...MOT...LOC 0915Z 234DEG 36KT 4595 9814 4565 9794 4530 9792

SRF

Local storm report, Jun 13, 6:47 AM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
647 AM CDT TUE JUN 13 2017

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

0625 AM     TSTM WND GST     3 WSW GRACEVILLE        45.56N 96.49W
06/13/2017  M59 MPH          BIG STONE          MN   MESONET

&&

MC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 11:41 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Stanley	49 min
Jun 13, 12:21 AM CDT	Severe Thunderstorm Warning	ABR	Hughes, Jones, Stanley	39 min
Jun 13, 1:00 AM CDT	Special Weather Statement	ABR	Hughes	45 min
Jun 13, 1:14 AM CDT	Special Weather Statement	ABR	Sully	46 min
Jun 13, 1:22 AM CDT	Severe Thunderstorm Warning	ABR	Hughes, Stanley, Sully	38 min
Jun 13, 2:02 AM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Hughes, Hyde, Potter, Sully	43 min
Jun 13, 2:39 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, Hand, Hyde, Spink	51 min
Jun 13, 3:19 AM CDT	Special Weather Statement	ABR	Brown	41 min
Jun 13, 3:36 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Marshall	39 min
Jun 13, 4:15 AM CDT	Special Weather Statement	ABR	Day, Marshall	45 min
Jun 13, 5:04 AM CDT	Severe Thunderstorm Warning	ABR	Day, Grant, Marshall, Roberts	24 min
Jun 13, 3:28 PM CDT	Severe Thunderstorm Warning	ABR	Hand	47 min
Jun 13, 3:49 PM CDT	Special Weather Statement	ABR	Jones	41 min
Jun 13, 3:59 PM CDT	Tornado Warning	ABR	Hand	31 min
Jun 13, 4:08 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Spink	52 min
Jun 13, 4:21 PM CDT	Tornado Warning	ABR	Faulk, Hand, Spink	39 min
Jun 13, 4:29 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Stanley, Sully	46 min
Jun 13, 4:46 PM CDT	Severe Thunderstorm Warning	ABR	Potter, Walworth	44 min
Jun 13, 4:51 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Spink	39 min
Jun 13, 5:06 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hughes, Hyde, Potter, Sully	39 min
Jun 13, 5:13 PM CDT	Special Weather Statement	ABR	Buffalo	47 min
Jun 13, 5:17 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Spink	43 min
Jun 13, 5:28 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Edmunds, McPherson, Potter, Walworth	47 min
Jun 13, 5:43 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk, Hand, Hyde	47 min
Jun 13, 5:44 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Spink	46 min
Jun 13, 5:48 PM CDT	Special Weather Statement	ABR	Brule	42 min
Jun 13, 6:06 PM CDT	Tornado Warning	ABR	Hand	24 min
Jun 13, 6:08 PM CDT	Tornado Warning Tornado observed	ABR	Brown	37 min
Jun 13, 6:13 PM CDT	Tornado Warning	ABR	Brown, Day	32 min
Jun 13, 6:34 PM CDT	Tornado Warning	ABR	Brown, Day, Marshall	26 min
Jun 13, 6:43 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Spink	47 min
Jun 13, 6:57 PM CDT	Tornado Warning	ABR	Marshall	33 min
Jun 13, 6:59 PM CDT	Severe Thunderstorm Warning	ABR	Brown	46 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2017 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.