Alert archive / North Dakota / High Wind Watches in 2015

High Wind Watch 1, NWS Bismarck, ND

July 27, 201532 counties in North Dakota

NWS Bismarck, ND issued this high wind watch at Jul 27, 2015, 2:40 AM MDT for 32 counties in North Dakota. It took effect at Jul 28, 2015, 9:00 AM MDT. It was in force for .

The area

The counties it named.

The facts

Issued: Jul 27, 2015, 2:40 AM MDT (08:40 UTC)
In effect from: Jul 28, 2015, 9:00 AM MDT
Expired: Jul 28, 2015, 1:33 AM MDT
In force
Issued by: NWS Bismarck, ND

All 32 counties

Adams County, ND, Billings County, ND, Bottineau County, ND, Bowman County, ND, Burke County, ND, Burleigh County, ND, Dickey County, ND, Divide County, ND, Dunn County, ND, Emmons County, ND, Foster County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McHenry County, ND, McIntosh County, ND, McKenzie County, ND, Mercer County, ND, Mountrail County, ND, Oliver County, ND, Pierce County, ND, Renville County, ND, Rolette County, ND, Sheridan County, ND, Slope County, ND, Stark County, ND, Stutsman County, ND, Wells County, ND, Williams County, ND

The radar

The Bismarck radar (KBIS), 72 km from the middle of the area, began a volume at 08:42 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, 8.7 hours before the alert went out and 348 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 590 J/kg
Mixed-layer CIN: -192 J/kg
Mixed-layer LCL: 1536 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: -31 m²/s²
0-3 km storm-relative helicity: -2 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high wind watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Bismarck, ND wrote its last area forecast discussion before this high wind watch went out at Jul 27, 2:32 AM MDT, 8 minutes earlier.

Area forecast discussion, Jul 27, 2:32 AM MDT, 8 minutes before

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Hazardous weather outlook, Jul 26, 11:54 PM MDT, 2 hours 46 minutes before

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In the hours before

Special weather statement, Jul 26, 8:53 PM MDT, 5 hours 47 minutes before

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Local storm report, Jul 26, 9:03 PM MDT, 5 hours 37 minutes before

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Local storm report, Jul 26, 9:39 PM MDT, 5 hours 1 minute before

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Local storm report, Jul 26, 9:41 PM MDT, 4 hours 59 minutes before

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Local storm report, Jul 26, 9:50 PM MDT, 4 hours 50 minutes before

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The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 26, 6:59 PM MDT	Special Weather Statement	BIS	Adams, Grant, Hettinger, McLean, Morton, Oliver	61 min
Jul 26, 8:53 PM MDT	Special Weather Statement	BIS	Grant, Sioux	37 min
Jul 27, 4:55 PM MDT	Special Weather Statement	BIS	Bowman	35 min
Jul 27, 5:31 PM MDT	Special Weather Statement	BIS	Slope	29 min
Jul 27, 5:38 PM MDT	Severe Thunderstorm Warning	BIS	Golden Valley, Slope	27 min

Nearby

High Wind Watches in North Dakota, 2015 Every high wind watch in 2015

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.