Alert archive / South Dakota / Freeze Warnings in 2010
Freeze Warning 1, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this freeze warning at May 7, 2010, 3:35 PM CDT for 14 counties in South Dakota. It took effect at May 8, 2010, 4:00 AM CDT. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 7, 2010, 3:35 PM CDT (20:35 UTC)
- In effect from
- May 8, 2010, 4:00 AM CDT
- Expired
- May 8, 2010, 7:41 AM CDT
- In force
- 4 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, Kingsbury County, SD, Miner County, SD, Sanborn County, SD
The radar
The Sioux Falls radar (KFSD), 123 km from the middle of the area, began a volume at 20:35 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
Omaha, NE (KOAX), launched 12:00Z, 8.6 hours before the alert went out and 306 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
- 606 m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze warning 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 freeze warning went out at May 7, 10:25 AM CDT, 5 hours 10 minutes earlier.
Area forecast discussion, May 7, 10:25 AM CDT, 5 hours 10 minutes before
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</html>Hazardous weather outlook, May 7, 5:11 AM CDT, 10 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 511 AM CDT FRI MAY 07 2010 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-081200- 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- 511 AM CDT FRI MAY 07 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT WIND AND FOG... BEHIND A COLD FRONT...NORTHWEST WINDS WILL INCREASE TODAY WITH GUSTINESS OVER 30 MPH LIKELY...MAINLY WEST OF A BROOKINGS SOUTH DAKOTA TO STORM LAKE IOWA LINE. THE STRONGEST OF THE WINDS WILL BE ALONG THE MISSOURI RIVER VALLEY AREA WHERE A WIND ADVISORY HAS BEEN POSTED FOR 25 TO 40 MPH WINDS. EXCESSIVE TEMPERATURES... FREEZING TEMPERATURES ARE QUITE POSSIBLE LATE TONIGHT AND VERY EARLY SATURDAY...GENERALLY ALONG AND WEST OF THE JAMES RIVER VALLEY. EAST OF THE JAMES RIVER...THE WIND SHOULD STAY STRONG ENOUGH TONIGHT AS TO NOT ALLOW ANY FROST OR FREEZING TEMPERATURES. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .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.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 3:38 AM CDT | Freeze Watch | FSD | Aurora, Beadle, Brule, Charles Mix, Davison, Douglas and 3 more | 12 hr |
| May 7, 3:38 AM CDT | Wind Advisory | FSD | Aurora, Bon Homme, Brule, Charles Mix, Clay, Davison and 10 more | 17 hr |
Nearby
Freeze Warnings in South Dakota, 2010Every freeze warning in 2010
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.