Alert archive / North Dakota / Heat Advisories in 2011
Heat Advisory 3, NWS Bismarck, ND
NWS Bismarck, ND issued this heat advisory at Jul 31, 2011, 3:13 AM CDT for Emmons County, Grant County, North Dakota. It took effect at Jul 31, 2011, 3:00 PM CDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jul 31, 2011, 3:13 AM CDT (08:13 UTC)
- In effect from
- Jul 31, 2011, 3:00 PM CDT
- Expired
- Jul 31, 2011, 8:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS Bismarck, ND
Counties Emmons County, ND, Grant County, ND
The radar
The Bismarck radar (KBIS), 52 km from the middle of the area, began a volume at 08:10 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, 8.2 hours before the alert went out and 253 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
- 4943 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 2.7
- Supercell composite
- 12.6
What forecasters said that day
The local office's own words before this heat 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 heat advisory went out at Jul 31, 3:06 AM CDT, 7 minutes earlier.
Area forecast discussion, Jul 31, 3:06 AM CDT, 7 minutes before
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</html>Hazardous weather outlook, Jul 30, 11:54 PM CDT, 3 hours 19 minutes before
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</html>Nearby
Heat Advisories in North Dakota, 2011Every heat advisory in 2011
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.