Alert archive / South Dakota / Tornado Warnings in 2015
Tornado Warning 8, NWS Aberdeen, SD
NWS Aberdeen, SD issued this tornado warning at Jul 17, 2015, 6:20 PM CDT for Marshall County, Roberts County, South Dakota. It was in force for 25 min. 1 report 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
- Jul 17, 2015, 6:20 PM CDT (23:20 UTC)
- Expired
- Jul 17, 2015, 6:45 PM CDT
- In force
- 25 min
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.25 in
Counties Marshall County, SD, Roberts County, SD
The radar
The Aberdeen radar (KABR), 92 km from the middle of the area, began a volume at 23:20 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 |
|---|---|---|---|
| Jul 17, 6:25 PM CDT | HAIL 1.25 | 6 E Lake City, SD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 17, 3:43 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 11.3 hours before the alert went out and 123 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.
- Mixed-layer CAPE
- 490 J/kg
- Mixed-layer CIN
- -181 J/kg
- Mixed-layer LCL
- 1592 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
591
WFUS53 KABR 172320
TORABR
SDC091-109-172345-
/O.NEW.KABR.TO.W.0008.150717T2320Z-150717T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
620 PM CDT FRI JUL 17 2015
THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A
* TORNADO WARNING FOR...
NORTHWESTERN ROBERTS COUNTY IN NORTHEASTERN SOUTH DAKOTA...
EAST CENTRAL MARSHALL COUNTY IN NORTHEASTERN SOUTH DAKOTA...
* UNTIL 645 PM CDT
* AT 620 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED OVER RED IRON HOUSING...OR 11 MILES WEST OF
SISSETON...MOVING EAST AT 15 MPH.
HAZARD...TORNADO AND HALF DOLLAR SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED.
DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE
DAMAGE IS LIKELY.
* THIS DANGEROUS STORM WILL BE NEAR...
LONG HOLLOW HOUSING AROUND 640 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4564 9735 4571 9738 4574 9719 4564 9711
TIME...MOT...LOC 2320Z 256DEG 14KT 4569 9728
TORNADO...RADAR INDICATED
HAIL...1.25IN
$$
SD1 follow-up statement
650
WWUS53 KABR 172332
SVSABR
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
632 PM CDT FRI JUL 17 2015
SDC091-109-172345-
/O.CON.KABR.TO.W.0008.000000T0000Z-150717T2345Z/
ROBERTS SD-MARSHALL SD-
632 PM CDT FRI JUL 17 2015
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHWESTERN ROBERTS AND EAST CENTRAL MARSHALL COUNTIES...
AT 632 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR LONG HOLLOW HOUSING...OR 9 MILES WEST OF SISSETON...
MOVING EAST AT 15 MPH.
HAZARD...TORNADO AND PING PONG BALL SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
THIS DANGEROUS STORM WILL BE NEAR...
LONG HOLLOW HOUSING AROUND 645 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4564 9730 4571 9731 4574 9719 4564 9711
TIME...MOT...LOC 2332Z 267DEG 12KT 4568 9724
TORNADO...RADAR INDICATED
HAIL...1.50IN
$$
SDThe office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 8:24 PM CDT | Special Weather Statement | ABR | Brown | 51 min |
| Jul 16, 8:25 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 30 min |
| Jul 17, 4:34 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 41 min |
| Jul 17, 4:38 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk | 52 min |
| Jul 17, 4:52 PM CDT | Severe Thunderstorm Warning | ABR | McPherson | 53 min |
| Jul 17, 5:07 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 38 min |
| Jul 17, 5:12 PM CDT | Tornado Warning | ABR | Marshall | 33 min |
| Jul 17, 5:21 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk, Spink | 39 min |
| Jul 17, 5:31 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 59 min |
| Jul 17, 5:41 PM CDT | Severe Thunderstorm Warning | ABR | Marshall, Roberts | 64 min |
| Jul 17, 6:02 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 43 min |
| Jul 17, 6:18 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day | 57 min |
| Jul 17, 6:24 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Marshall | 66 min |
| Jul 17, 6:44 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk, Spink | 47 min |
| Jul 17, 6:44 PM CDT | Tornado Warning | ABR | Roberts | 31 min |
| Jul 17, 6:46 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 44 min |
| Jul 17, 6:57 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Spink | 63 min |
Nearby
Tornado Warnings in South Dakota, 2015Every tornado warning in 2015Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.