Alert archive / North Dakota / Frost Advisories in 2013

Frost Advisory 3, NWS Bismarck, ND

October 1, 201327 counties in North Dakota

NWS Bismarck, ND issued this frost advisory at Oct 1, 2013, 8:08 PM MDT for 27 counties in North Dakota. It took effect at Oct 2, 2013, 12:00 AM MDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Oct 1, 2013, 8:08 PM MDT (02:08 UTC)
In effect from: Oct 2, 2013, 12:00 AM MDT
Expired: Oct 2, 2013, 5:34 AM MDT
In force: 6 hr
Issued by: NWS Bismarck, ND

All 27 counties

Billings County, ND, Bottineau 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, 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, Stark County, ND, Stutsman County, ND, Wells County, ND, Williams County, ND

The radar

The Bismarck radar (KBIS), 83 km from the middle of the area, began a volume at 02:12 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

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.1 hours before the alert went out and 84 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2526 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 143 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 frost 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 frost advisory went out at Oct 1, 6:15 PM MDT, 1 hour 53 minutes earlier.

Area forecast discussion, Oct 1, 6:15 PM MDT, 1 hour 53 minutes before

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Nearby

Frost Advisories in North Dakota, 2013 Every frost advisory in 2013

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.