Alert archive / Montana / Flash Flood Watches in 2010
Flash Flood Watch 2, NWS Missoula, MT
NWS Missoula, MT issued this flash flood watch at Jun 25, 2010, 9:39 AM MDT for Deer Lodge County, Granite County, Silver Bow County, Montana; Lemhi County, Idaho. It took effect at Jun 25, 2010, 2:00 PM MDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Jun 25, 2010, 9:39 AM MDT (15:39 UTC)
- In effect from
- Jun 25, 2010, 2:00 PM MDT
- Expired
- Jun 25, 2010, 8:51 PM MDT
- In force
- 7 hr
- Issued by
- NWS Missoula, MT
- Flood severity
- None
Counties Lemhi County, ID, Deer Lodge County, MT, Granite County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 146 km from the middle of the area, began a volume at 15:40 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
Spokane, WA (KOTX), launched 12:00Z, 3.7 hours before the alert went out and 316 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
- 2086 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 116 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 Missoula, MT wrote its last area forecast discussion before this flash flood watch went out at Jun 25, 3:40 AM MDT, 5 hours 59 minutes earlier.
Area forecast discussion, Jun 25, 3:40 AM MDT, 5 hours 59 minutes before
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</html>The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 2:27 PM MDT | Special Weather Statement | MSO | Lewis | 48 min |
| Jun 25, 2:32 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 23 min |
| Jun 25, 3:18 PM MDT | Special Weather Statement | MSO | Lewis | 42 min |
| Jun 25, 3:38 PM MDT | Areal Flood Advisory | MSO | Idaho | 84 min |
Nearby
Flash Flood Watches in Montana, 2010Flash Flood Watches in Idaho, 2010Every flash flood watch in 2010
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.