Alert archive / Missouri / Dense Fog Advisories in 2017
Dense Fog Advisory 13, NWS Springfield, MO
NWS Springfield, MO issued this dense fog advisory at Aug 15, 2017, 4:19 AM CDT for 5 counties in Missouri. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Aug 15, 2017, 4:19 AM CDT (09:19 UTC)
- Expired
- Aug 15, 2017, 8:52 AM CDT
- In force
- 5 hr
- Issued by
- NWS Springfield, MO
Counties Dent County, MO, Maries County, MO, Oregon County, MO, Phelps County, MO, Shannon County, MO
The radar
The St Louis radar (KLSX), 156 km from the middle of the area, began a volume at 09:16 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
Springfield, MO (KSGF), launched 00:00Z, 9.3 hours before the alert went out and 205 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
- 332 J/kg
- Mixed-layer CIN
- -100 J/kg
- Mixed-layer LCL
- 1045 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- -32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this dense fog advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Springfield, MO wrote its last area forecast discussion before this dense fog advisory went out at Aug 15, 3:00 AM CDT, 1 hour 19 minutes earlier.
Area forecast discussion, Aug 15, 3:00 AM CDT, 1 hour 19 minutes before
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</html>Hazardous weather outlook, Aug 14, 8:59 PM CDT, 7 hours 20 minutes before
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</html>Nearby
Dense Fog Advisories in Missouri, 2017Every dense fog advisory 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.