Alert archive / South Dakota / Wind Advisories in 2011
Wind Advisory 7, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this wind advisory at Apr 21, 2011, 3:24 AM CDT for 12 counties in South Dakota. It took effect at Apr 21, 2011, 12:00 PM CDT. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Apr 21, 2011, 3:24 AM CDT (08:24 UTC)
- In effect from
- Apr 21, 2011, 12:00 PM CDT
- Expired
- Apr 21, 2011, 3:07 PM CDT
- In force
- 3 hr
- Issued by
- NWS Sioux Falls, SD
Counties Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brule County, SD, Charles Mix County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Sanborn County, SD
The radar
The Sioux Falls radar (KFSD), 132 km from the middle of the area, began a volume at 08:30 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 nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 8.4 hours before the alert went out and 143 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1264 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
257 WWUS73 KFSD 210824 NPWFSD URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 324 AM CDT THU APR 21 2011 ...STRONG SOUTH TO SOUTHEAST WINDS DEVELOPING TODAY ALONG AND WEST OF THE JAMES RIVER VALLEY... .A SWATH OF STRONG SOUTH TO SOUTHEAST WINDS WILL DEVELOP IN THE LATE MORNING AND AFTERNOON ALONG AND WEST OF THE JAMES RIVER VALLEY. THIS IS DUE TO HIGH PRESSURE DRIFTING OFF TO THE EAST... AND LOW PRESSURE DEVELOPING ACROSS THE ROCKY MOUNTAIN FRONT RANGE. THEREFORE IN BETWEEN THESE SYSTEMS...THE WINDS WILL BECOME QUITE STRONG THROUGHOUT THE CENTRAL CORRIDOR OF SOUTH DAKOTA. SDZ038-050-052-053-057>060-063>065-068-211630- /O.NEW.KFSD.WI.Y.0007.110421T1700Z-110421T2300Z/ BEADLE-GREGORY-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON- CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME- INCLUDING THE CITIES OF...HURON...GREGORY...BURKE... WESSINGTON SPRINGS...ALPENA...WOONSOCKET...CHAMBERLAIN... KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL... ALEXANDRIA...EMERY...WAGNER...PLATTE...LAKE ANDES...MARTY... ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR 324 AM CDT THU APR 21 2011 ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM CDT THIS EVENING. * TIMING...THE STRONGEST WINDS WILL OCCUR IN THE LATE MORNING AND AFTERNOON. * WEATHER CONDITIONS...SOUTH TO SOUTHEAST WINDS OF 25 TO 35 MPH ARE LIKELY. SOME GUSTS UP TO 40 MPH ARE CERTAINLY POSSIBLE APPROACHING CENTRAL SOUTH DAKOTA IN THE AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$
2 follow-up statements
593 WWUS73 KFSD 211738 NPWFSD URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 1238 PM CDT THU APR 21 2011 .A SWATH OF STRONG SOUTH TO SOUTHEAST WINDS IS EXPECTED THIS AFTERNOON ALONG AND WEST OF THE JAMES RIVER VALLEY. THIS IS DUE TO HIGH PRESSURE DRIFTING OFF TO THE EAST... AND LOW PRESSURE DEVELOPING ACROSS THE ROCKY MOUNTAIN FRONT RANGE. THEREFORE IN BETWEEN THESE SYSTEMS...THE WINDS WILL BECOME QUITE STRONG THROUGHOUT THE CENTRAL CORRIDOR OF SOUTH DAKOTA. SDZ038-050-052-053-057>060-063>065-068-212300- /O.CON.KFSD.WI.Y.0007.000000T0000Z-110421T2300Z/ BEADLE-GREGORY-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON- CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME- INCLUDING THE CITIES OF...HURON...GREGORY...BURKE... WESSINGTON SPRINGS...ALPENA...WOONSOCKET...CHAMBERLAIN... KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL... ALEXANDRIA...EMERY...WAGNER...PLATTE...LAKE ANDES...MARTY... ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR 1238 PM CDT THU APR 21 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING... A WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING. * TIMING...THE STRONGEST WINDS WILL OCCUR THIS AFTERNOON. * WEATHER CONDITIONS...SOUTH TO SOUTHEAST WINDS OF 25 TO 35 MPH ARE LIKELY. SOME GUSTS UP TO 40 MPH ARE CERTAINLY POSSIBLE APPROACHING CENTRAL SOUTH DAKOTA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$
384 WWUS73 KFSD 212007 NPWFSD URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 307 PM CDT THU APR 21 2011 SDZ038-050-052-053-057>060-063>065-068-212115- /O.CAN.KFSD.WI.Y.0007.000000T0000Z-110421T2300Z/ BEADLE-GREGORY-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON- CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME- INCLUDING THE CITIES OF...HURON...GREGORY...BURKE... WESSINGTON SPRINGS...ALPENA...WOONSOCKET...CHAMBERLAIN... KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL... ALEXANDRIA...EMERY...WAGNER...PLATTE...LAKE ANDES...MARTY... ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR 307 PM CDT THU APR 21 2011 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE WIND ADVISORY. SOUTHEAST WINDS WILL REMAIN BELOW WIND ADVISORY LEVELS THE REST OF THE AFTERNOON AVERAGING 15 TO 30 MPH. $$
Nearby
Wind Advisories in South Dakota, 2011Every wind advisory in 2011
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.