Alert archive / Minnesota / Flash Flood Watches in 2012
Flash Flood Watch 3, NWS Duluth, MN
NWS Duluth, MN issued this flash flood watch at Jul 24, 2012, 3:41 PM CDT for Cook County, Lake County, Saint Louis County, Minnesota. It took effect at Jul 25, 2012, 4:00 AM CDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jul 24, 2012, 3:41 PM CDT (20:41 UTC)
- In effect from
- Jul 25, 2012, 4:00 AM CDT
- Expired
- Jul 25, 2012, 8:14 AM CDT
- In force
- 4 hr
- Issued by
- NWS Duluth, MN
- Flood severity
- None
Counties Cook County, MN, Lake County, MN, Saint Louis County, MN
The radar
The Duluth radar (KDLH), 106 km from the middle of the area, began a volume at 20:45 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.7 hours before the alert went out and 437 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
- 898 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Duluth, MN wrote its last area forecast discussion before this flash flood watch went out at Jul 24, 3:15 PM CDT, 26 minutes earlier.
Area forecast discussion, Jul 24, 3:15 PM CDT, 26 minutes before
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</html>Hazardous weather outlook, Jul 24, 3:29 PM CDT, 12 minutes before
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Flash Flood Watches in Minnesota, 2012Every flash flood watch in 2012
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.