Alert archive / North Dakota / Winter Storm Watches in 2017
Winter Storm Watch 1, NWS Grand Forks, ND
NWS Grand Forks, ND issued this winter storm watch at Mar 5, 2017, 5:54 PM CST for 4 counties in North Dakota. It took effect at Mar 6, 2017, 6:00 PM CST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Mar 5, 2017, 5:54 PM CST (23:54 UTC)
- In effect from
- Mar 6, 2017, 6:00 PM CST
- Expired
- Mar 6, 2017, 3:28 PM CST
- In force
- Issued by
- NWS Grand Forks, ND
Counties Benson County, ND, Cavalier County, ND, Ramsey County, ND, Towner County, ND
The radar
The Minot AFB radar (KMBX), 141 km from the middle of the area, began a volume at 23:57 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 12:00Z, 11.9 hours before the alert went out and 397 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
- 2446 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 82 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 Grand Forks, ND wrote its last area forecast discussion before this winter storm watch went out at Mar 5, 3:42 PM CST, 2 hours 12 minutes earlier.
Area forecast discussion, Mar 5, 3:42 PM CST, 2 hours 12 minutes before
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</html>Hazardous weather outlook, Mar 5, 6:55 AM CST, 10 hours 59 minutes before
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Special weather statement, Mar 5, 3:51 PM CST, 2 hours 3 minutes before
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</html>Nearby
Winter Storm Watches in North Dakota, 2017Every winter storm watch in 2017
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.