Alert archive / South Dakota / Winter Storm Watches in 2009
Winter Storm Watch 2, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this winter storm watch at Mar 8, 2009, 12:56 PM CDT for 8 counties in South Dakota; 5 counties in Minnesota. It took effect at Mar 10, 2009, 7:00 AM CDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Mar 8, 2009, 12:56 PM CDT (17:56 UTC)
- In effect from
- Mar 10, 2009, 7:00 AM CDT
- Expired
- Mar 9, 2009, 4:05 PM CDT
- In force
- Issued by
- NWS Sioux Falls, SD
Counties Cottonwood County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Pipestone County, MN, Beadle County, SD, Brookings County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Miner County, SD, Moody County, SD, Sanborn County, SD
The radar
The Sioux Falls radar (KFSD), 66 km from the middle of the area, began a volume at 17:55 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
Minneapolis, MN (KMPX), launched 12:00Z, 5.9 hours before the alert went out and 274 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
- 1189 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before this winter storm watch went out at Mar 8, 11:15 AM CDT, 1 hour 41 minutes earlier.
Area forecast discussion, Mar 8, 11:15 AM CDT, 1 hour 41 minutes before
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</html>Hazardous weather outlook, Mar 8, 5:09 AM CDT, 7 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 0409 AM CST SUN MAR 08 2009 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-091200- AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA- CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE- DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON- IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN- LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN- OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN- SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON- 0409 AM CST SUN MAR 08 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT WINTER WEATHER... SNOW WILL CONTINUE INTO THE EARLY AFTERNOON FOR AREAS EAST OF INTERSTATE 29...WHILE COMING TO AN END SHORTLY AFTER SUNRISE TO THE WEST OF INTERSTATE 29. A GENERAL 1 TO 2 INCHES WILL BE COMMON FOR MOST LOCATIONS SOUTH AND EAST OF A MITCHELL TO SLAYTON LINE. AN ENHANCED BAND OF SNOW MAY PRODUCE 2 TO 4 INCHES FROM AROUND HURLEY THROUGH LENNOX INTO SIOUX FALLS AND LUVERNE. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A MAJOR WINTER STORM WILL MOVE ONTO THE PLAINS LATE MONDAY NIGHT INTO TUESDAY...WITH THE MAJOR EFFECTS REMAINING JUST NORTH OF THE AREA. HOWEVER...SNOW WILL STILL REMAIN LIKELY ACROSS MOST OF THE AREA WITH THE HEAVIEST AMOUNTS NORTH AND WEST OF A CHAMBERLAIN TO BROOKINGS LINE. VERY STRONG NORTHWEST WINDS WILL ALSO DEVELOP BEHIND THIS SYSTEM AND COULD CREATE AREAS OF BLOWING AND DRIFTING SNOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
In the hours before
Local storm report, Mar 8, 8:06 AM CDT, 4 hours 50 minutes before
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</html>Local storm report, Mar 8, 8:24 AM CDT, 4 hours 32 minutes before
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</html>Local storm report, Mar 8, 8:31 AM CDT, 4 hours 25 minutes before
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</html>Local storm report, Mar 8, 9:36 AM CDT, 3 hours 20 minutes before
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</html>Local storm report, Mar 8, 9:57 AM CDT, 2 hours 59 minutes before
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</html>Local storm report, Mar 8, 12:49 PM CDT, 7 minutes before
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</html>Nearby
Winter Storm Watches in South Dakota, 2009Winter Storm Watches in Minnesota, 2009Every winter storm watch in 2009
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.