Alert archive / Iowa / Heat Advisories in 2016
Heat Advisory 1, NWS Des Moines, IA
NWS Des Moines, IA issued this heat advisory at Jun 9, 2016, 3:56 PM CDT for Dallas County, Polk County, Story County, Iowa. It took effect at Jun 10, 2016, 12:00 PM CDT. It was in force for 55 hr.
The area
The counties it named.
The facts
- Issued
- Jun 9, 2016, 3:56 PM CDT (20:56 UTC)
- In effect from
- Jun 10, 2016, 12:00 PM CDT
- Expired
- Jun 12, 2016, 7:00 PM CDT
- In force
- 55 hr
- Issued by
- NWS Des Moines, IA
Counties Dallas County, IA, Polk County, IA, Story County, IA
The radar
The Des Moines radar (KDMX), 8 km from the middle of the area, began a volume at 20:58 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
Davenport, (KDVN), launched 12:00Z, 8.9 hours before the alert went out and 266 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1668 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Des Moines, IA wrote its last area forecast discussion before this heat advisory went out at Jun 9, 12:25 PM CDT, 3 hours 31 minutes earlier.
Area forecast discussion, Jun 9, 12:25 PM CDT, 3 hours 31 minutes before
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</html>Hazardous weather outlook, Jun 9, 3:47 AM CDT, 12 hours 9 minutes before
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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.