Alert archive / South Dakota / Tornado Warnings in 2019
Tornado Warning 9, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Jun 30, 2019, 5:27 PM CDT for Gregory County, South Dakota. It was in force for 33 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
- Jun 30, 2019, 5:27 PM CDT (22:27 UTC)
- Expired
- Jun 30, 2019, 6:00 PM CDT
- In force
- 33 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Gregory County, SD
The radar
The North Platte radar (KLNX), 170 km from the middle of the area, began a volume at 22:30 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 30, 5:19 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 10.5 hours before the alert went out and 202 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
- 1889 J/kg
- Mixed-layer CIN
- -336 J/kg
- Mixed-layer LCL
- 1008 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -169 m²/s²
- 0-3 km storm-relative helicity
- -67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.1
The text
As transmitted.
066
WFUS53 KFSD 302227
TORFSD
SDC053-302300-
/O.NEW.KFSD.TO.W.0009.190630T2227Z-190630T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Sioux Falls SD
527 PM CDT Sun Jun 30 2019
The National Weather Service in Sioux Falls has issued a
* Tornado Warning for...
West central Gregory County in south central South Dakota...
* Until 600 PM CDT.
* At 527 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Dallas, or 21 miles southeast of Winner, moving
east at 5 mph.
HAZARD...Tornado.
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...
Gregory around 550 PM CDT.
Burke around 600 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 4320 9953 4333 9953 4337 9928 4318 9927
4318 9954
TIME...MOT...LOC 2227Z 252DEG 6KT 4324 9948
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Hanko2 follow-up statements
627
WWUS53 KFSD 302250
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
550 PM CDT Sun Jun 30 2019
SDC053-302300-
/O.CON.KFSD.TO.W.0009.000000T0000Z-190630T2300Z/
Gregory SD-
550 PM CDT Sun Jun 30 2019
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR WEST
CENTRAL GREGORY COUNTY...
At 549 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Dallas, or 19 miles southeast of Winner, and is
nearly stationary.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
west central Gregory County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4320 9953 4333 9953 4337 9928 4318 9927
4318 9954
TIME...MOT...LOC 2249Z 023DEG 0KT 4321 9953
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
Hanko465
WWUS53 KFSD 302300
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
600 PM CDT Sun Jun 30 2019
SDC053-302309-
/O.EXP.KFSD.TO.W.0009.000000T0000Z-190630T2300Z/
Gregory SD-
600 PM CDT Sun Jun 30 2019
...THE TORNADO WARNING FOR WEST CENTRAL GREGORY COUNTY WILL EXPIRE AT
600 PM CDT...
The storm which prompted the warning no longer appears capable of
producing a tornado. Therefore, the warning will be allowed to
expire.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
south central South Dakota.
LAT...LON 4320 9953 4333 9953 4337 9928 4318 9927
4318 9954
TIME...MOT...LOC 2259Z 252DEG 6KT 4321 9951
$$
HankoThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 4:23 PM CDT | Tornado Warning | FSD | Gregory | 37 min |
| Jun 30, 4:25 PM CDT | Tornado Warning | FSD | Charles Mix, Douglas | 35 min |
| Jun 30, 4:28 PM CDT | Tornado Warning | FSD | Charles Mix | 32 min |
| Jun 30, 5:02 PM CDT | Tornado Warning | FSD | Gregory | 28 min |
| Jun 30, 5:17 PM CDT | Severe Thunderstorm Warning | FSD | Brule, Charles Mix, Gregory | 43 min |
| Jun 30, 5:58 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 47 min |
| Jun 30, 6:10 PM CDT | Tornado Warning | FSD | Gregory | 35 min |
Nearby
Tornado Warnings in South Dakota, 2019Every tornado warning in 2019Tornadoes in 2019
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.