Alert archive / North Dakota / Areal Flood Advisories in 2015

Areal Flood Advisory 21, NWS Bismarck, ND

July 16, 2015Grant County, Morton County, Sioux County, North Dakota

NWS Bismarck, ND issued this areal flood advisory at Jul 16, 2015, 1:03 AM MDT for Grant County, Morton County, Sioux County, North Dakota. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jul 16, 2015, 1:03 AM MDT (07:03 UTC)
Expired: Jul 16, 2015, 8:39 AM MDT
In force: 8 hr
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

Counties Grant County, ND, Morton County, ND, Sioux County, ND

The radar

The Bismarck radar (KBIS), 60 km from the middle of the area, began a volume at 07:04 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

Rapid City, SD (KRAP), launched 00:00Z, 7.1 hours before the alert went out and 286 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: 7 J/kg
Mixed-layer CIN: -282 J/kg
Mixed-layer LCL: 1871 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -67 m²/s²
0-3 km storm-relative helicity: 61 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 areal flood advisory 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 areal flood advisory went out at Jul 15, 11:33 PM MDT, 1 hour 30 minutes earlier.

Area forecast discussion, Jul 15, 11:33 PM MDT, 1 hour 30 minutes before

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Hazardous weather outlook, Jul 15, 8:26 PM MDT, 4 hours 37 minutes before

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In the hours before

Special weather statement, Jul 15, 8:36 PM MDT, 4 hours 27 minutes before

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Special weather statement, Jul 15, 8:59 PM MDT, 4 hours 4 minutes before

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Special weather statement, Jul 15, 9:02 PM MDT, 4 hours 1 minute before

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Special weather statement, Jul 15, 9:32 PM MDT, 3 hours 31 minutes before

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Special weather statement, Jul 15, 9:32 PM MDT, 3 hours 31 minutes before

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Special weather statement, Jul 15, 9:58 PM MDT, 3 hours 5 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 15, 6:17 PM MDT	Severe Thunderstorm Warning	BIS	McLean, Mountrail, Ward	58 min
Jul 15, 6:18 PM MDT	Severe Thunderstorm Warning	BIS	Divide	21 min
Jul 15, 6:23 PM MDT	Severe Thunderstorm Warning	BIS	McLean, Ward	67 min
Jul 15, 6:27 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie	63 min
Jul 15, 6:42 PM MDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Ward	63 min
Jul 15, 6:46 PM MDT	Areal Flood Advisory	BIS	Adams, Grant, Hettinger	3 hr
Jul 15, 6:47 PM MDT	Special Weather Statement	BIS	Grant	28 min
Jul 15, 7:00 PM MDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	60 min
Jul 15, 7:10 PM MDT	Special Weather Statement	BIS	Burke	35 min
Jul 15, 7:14 PM MDT	Special Weather Statement	BIS	Grant	31 min
Jul 15, 7:22 PM MDT	Special Weather Statement	BIS	Dickey	23 min
Jul 15, 7:25 PM MDT	Areal Flood Advisory	BIS	McLean, Mercer	6 hr
Jul 15, 7:39 PM MDT	Severe Thunderstorm Warning	BIS	McHenry	66 min
Jul 15, 7:43 PM MDT	Special Weather Statement	BIS	McKenzie	32 min
Jul 15, 7:58 PM MDT	Special Weather Statement	BIS	Sioux	32 min
Jul 15, 8:00 PM MDT	Special Weather Statement	BIS	McKenzie	30 min
Jul 15, 8:01 PM MDT	Special Weather Statement	BIS	Mountrail	29 min
Jul 15, 8:09 PM MDT	Special Weather Statement	BIS	McLean, Mercer	36 min
Jul 15, 8:28 PM MDT	Special Weather Statement	BIS	McHenry	32 min
Jul 15, 8:31 PM MDT	Special Weather Statement	BIS	Sioux	29 min
Jul 15, 8:36 PM MDT	Special Weather Statement	BIS	Dunn, Mountrail	24 min
Jul 15, 8:59 PM MDT	Special Weather Statement	BIS	Sioux	31 min
Jul 15, 9:02 PM MDT	Special Weather Statement	BIS	Dunn, Mountrail	28 min
Jul 15, 9:32 PM MDT	Special Weather Statement	BIS	Emmons	43 min
Jul 15, 9:58 PM MDT	Special Weather Statement	BIS	McLean, Mercer, Renville, Ward	32 min
Jul 16, 1:44 AM MDT	Special Weather Statement	BIS	Emmons	46 min
Jul 16, 4:52 AM MDT	Areal Flood Advisory	BIS	Emmons, Morton, Sioux	6 hr
Jul 16, 7:00 AM MDT	Special Weather Statement	BIS	LaMoure	30 min
Jul 16, 11:24 AM MDT	Severe Thunderstorm Warning	BIS	Logan, McIntosh	66 min
Jul 16, 12:19 PM MDT	Severe Thunderstorm Warning	BIS	Dickey, McIntosh	56 min
Jul 16, 1:39 PM MDT	Special Weather Statement	BIS	Wells	36 min
Jul 16, 1:51 PM MDT	Special Weather Statement	BIS	Dickey	24 min
Jul 16, 2:29 PM MDT	Special Weather Statement	BIS	Wells	31 min
Jul 16, 2:34 PM MDT	Special Weather Statement	BIS	Dickey	26 min
Jul 16, 3:00 PM MDT	Special Weather Statement	BIS	Foster	30 min
Jul 16, 3:34 PM MDT	Areal Flood Advisory	BIS	Stutsman	3 hr
Jul 16, 4:35 PM MDT	Special Weather Statement	BIS	Stutsman	40 min
Jul 16, 5:08 PM MDT	Special Weather Statement	BIS	Stutsman	37 min
Jul 16, 5:53 PM MDT	Special Weather Statement	BIS	Stutsman	37 min

Nearby

Areal Flood Advisories in North Dakota, 2015 Every areal flood advisory 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.