Alert archive / Minnesota / Winter Storm Watches in 2019

Winter Storm Watch 2, NWS Sioux Falls, SD

January 26, 2019Brookings County, Kingsbury County, South Dakota; 5 counties in Minnesota

NWS Sioux Falls, SD issued this winter storm watch at Jan 26, 2019, 2:29 PM CST for Brookings County, Kingsbury County, South Dakota; 5 counties in Minnesota. It took effect at Jan 27, 2019, 6:00 PM CST. It was in force for .

The area

The counties it named.

The facts

Issued
Jan 26, 2019, 2:29 PM CST (20:29 UTC)
In effect from
Jan 27, 2019, 6:00 PM CST
Expired
Jan 27, 2019, 3:34 AM CST
In force
Issued by
NWS Sioux Falls, SD

Counties Cottonwood County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Pipestone County, MN, Brookings County, SD, Kingsbury County, SD

The radar

The Sioux Falls radar (KFSD), 82 km from the middle of the area, began a volume at 20:27 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, 8.5 hours before the alert went out and 219 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2019-01-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2019-01-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 218 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
956 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
218 m²/s²
0-3 km storm-relative helicity
365 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jan 26, 11:20 AM CST, 3 hours 9 minutes earlier.

Area forecast discussion, Jan 26, 11:20 AM CST, 3 hours 9 minutes before
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Hazardous weather outlook, Jan 26, 4:18 AM CST, 10 hours 11 minutes before
Hazardous Weather Outlook
National Weather Service Sioux Falls SD
418 AM CST Sat Jan 26 2019

IAZ003-MNZ071-072-080-081-089-090-097-098-SDZ039-040-055-056-271030-
Dickinson-Lincoln MN-Lyon MN-Murray-Cottonwood-Nobles-Jackson-
Pipestone-Rock-Kingsbury-Brookings-Lake-Moody-
418 AM CST Sat Jan 26 2019

This Hazardous Weather Outlook is for northwest Iowa, southwest
Minnesota and east central South Dakota.

.DAY ONE...Today and tonight.

A period of light snow will be possible this morning and again late
tonight. Only a dusting of accumulation is expected.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Moderate accumulations of snow are expected for Sunday afternoon
through early Monday. In addition, increasing winds will result in
areas of blowing snow.

Bitterly cold air will move into the region for Tuesday through
Thursday of next week. Dangerous night time wind chills of 40 to 50
below zero will possible on Tuesday night and Wednesday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ001-002-012>014-020>022-031-032-NEZ013-014-SDZ038-050-052>054-
057>071-271030-
Lyon IA-Osceola-Sioux-O'Brien-Clay IA-Plymouth-Cherokee-Buena Vista-
Woodbury-Ida-Dixon-Dakota-Beadle-Gregory-Jerauld-Sanborn-Miner-Brule-
Aurora-Davison-Hanson-McCook-Minnehaha-Charles Mix-Douglas-
Hutchinson-Turner-Lincoln SD-Bon Homme-Yankton-Clay SD-Union-
418 AM CST Sat Jan 26 2019

This Hazardous Weather Outlook is for northwest Iowa, west central
Iowa, northeast Nebraska, central South Dakota, east central South
Dakota, south central South Dakota and southeast South Dakota.

.DAY ONE...Today and tonight.

A period of light snow will be possible this morning and again tonight.
Only a dusting of accumulation is expected.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Light accumulations of snow are possible for Sunday afternoon
through early Monday.

Bitterly cold air will move into the region for Tuesday through
Thursday of next week. Dangerous night time wind chills of 30 to 40
below zero will possible on Tuesday night and Wednesday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 26, 2:21 PM CSTHigh Wind WatchFSDAurora, Bon Homme, Brule, Charles Mix, Clay, Douglas and 5 more13 hr
Jan 26, 2:29 PM CSTWinter Weather AdvisoryFSDBeadle, Brookings, Davison, Hanson, Kingsbury, Lake and 7 more46 hr

Nearby

Winter Storm Watches in Minnesota, 2019Winter Storm Watches in South Dakota, 2019Every winter storm watch 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.