Alert archive / Montana / Areal Flood Warnings in 2008
Areal Flood Warning 2, NWS Missoula, MT
NWS Missoula, MT issued this areal flood warning at May 29, 2008, 1:15 PM MDT for Powell County, Montana. It was in force for 23 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 29, 2008, 1:15 PM MDT (19:15 UTC)
- Expired
- May 30, 2008, 12:37 PM MDT
- In force
- 23 hr
- Issued by
- NWS Missoula, MT
- Area
- Storm-based polygon
- Flood severity
- None
County Powell County, MT
The radar
The Missoula radar (KMSX), 82 km from the middle of the area, began a volume at 19:17 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
Great_falls, MT (KTFX), launched 12:00Z, 7.3 hours before the alert went out and 189 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
- 1397 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this areal flood warning went out at May 28, 2:25 PM MDT, 22 hours 50 minutes earlier.
Area forecast discussion, May 28, 2:25 PM MDT, 22 hours 50 minutes before
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</html>Hazardous weather outlook, May 28, 3:10 PM MDT, 22 hours 5 minutes before
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</html>Nearby
Areal Flood Warnings in Montana, 2008Every areal flood warning in 2008
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.