Alert archive / South Dakota / Tornado Warnings in 2014
Tornado Warning 50, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Sep 9, 2014, 6:30 PM CDT for McCook County, South Dakota. It was in force for 30 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
- Sep 9, 2014, 6:30 PM CDT (23:30 UTC)
- Expired
- Sep 9, 2014, 7:00 PM CDT
- In force
- 30 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
County McCook County, SD
The radar
The Sioux Falls radar (KFSD), 64 km from the middle of the area, began a volume at 23:31 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 |
|---|---|---|---|
| Sep 9, 6:37 PM CDT | FUNNEL CLOUD | 5 Nnw Bridgewater, SD | PUBLIC REPORT OF FUNNEL LOWERING TOWARD GROUND |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 11.5 hours before the alert went out and 158 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
- 13 J/kg
- Mixed-layer CIN
- -736 J/kg
- Mixed-layer LCL
- 937 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 318 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
176
WFUS53 KFSD 092330
TORFSD
SDC087-100000-
/O.NEW.KFSD.TO.W.0050.140909T2330Z-140910T0000Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
630 PM CDT TUE SEP 9 2014
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* TORNADO WARNING FOR...
WESTERN MCCOOK COUNTY IN SOUTHEASTERN SOUTH DAKOTA...
* UNTIL 700 PM CDT
* AT 630 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR EMERY...OR 18 MILES WEST OF LAKE
VERMILLION STATE RECREATION AREA...MOVING EAST AT 15 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 TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTHWESTERN MCCOOK 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 IN A MOBILE HOME...A
VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4360 9760 4368 9760 4371 9741 4356 9740
TIME...MOT...LOC 2330Z 263DEG 11KT 4363 9754
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
CHAPMAN2 follow-up statements
483
WWUS53 KFSD 092351
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
651 PM CDT TUE SEP 9 2014
SDC087-100000-
/O.CON.KFSD.TO.W.0050.000000T0000Z-140910T0000Z/
MCCOOK SD-
651 PM CDT TUE SEP 9 2014
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
WESTERN MCCOOK COUNTY...
AT 649 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 5 MILES NORTH OF BRIDGEWATER...OR 14 MILES WEST OF LAKE
VERMILLION STATE RECREATION AREA...MOVING EAST AT 10 MPH.
HAZARD...TORNADO.
SOURCE...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 5 MILES NORTH
NORTHEAST OF BRIDGEWATER AT 637 PM CDT.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTHWESTERN MCCOOK COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A
VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4359 9755 4365 9756 4368 9743 4356 9742
4359 9753
TIME...MOT...LOC 2349Z 264DEG 8KT 4363 9747
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CHAPMAN769
WWUS53 KFSD 092358
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
658 PM CDT TUE SEP 9 2014
SDC087-100008-
/O.EXP.KFSD.TO.W.0050.000000T0000Z-140910T0000Z/
MCCOOK SD-
658 PM CDT TUE SEP 9 2014
...THE TORNADO WARNING FOR WESTERN MCCOOK COUNTY WILL EXPIRE AT
700 PM CDT...
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
SIOUX FALLS.
LAT...LON 4359 9755 4365 9756 4368 9743 4356 9742
4359 9753
TIME...MOT...LOC 2357Z 263DEG 11KT 4363 9747
$$
CHAPMANThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 4:13 AM CDT | Dense Fog Advisory | FSD | Beadle, Bon Homme, Brookings, Clay, Davison, Hanson and 12 more | 7 hr |
Nearby
Tornado Warnings in South Dakota, 2014Every tornado warning in 2014Tornadoes in 2014
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.