Alert archive / Idaho / Flash Flood Warnings in 2010
Flash Flood Warning 2, NWS Boise, ID
NWS Boise, ID issued this flash flood warning at Jun 4, 2010, 1:17 PM MDT for 4 counties in Idaho; Malheur County, Oregon. It was in force for 104 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 4, 2010, 1:17 PM MDT (19:17 UTC)
- Expired
- Jun 4, 2010, 3:01 PM MDT
- In force
- 104 min
- Issued by
- NWS Boise, ID
- Area
- Storm-based polygon
- Flood severity
- None
Counties Adams County, ID, Gem County, ID, Valley County, ID, Washington County, ID, Malheur County, OR
The radar
The Boise radar (KCBX), 91 km from the middle of the area, began a volume at 19:19 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
Boise Airport, ID (KBOI), launched 12:00Z, 7.3 hours before the alert went out and 83 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
- 18 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 937 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 244 m²/s²
- 0-3 km storm-relative helicity
- 332 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 warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Boise, ID wrote its last area forecast discussion before this flash flood warning went out at Jun 3, 2:50 PM MDT, 22 hours 27 minutes earlier.
Area forecast discussion, Jun 3, 2:50 PM MDT, 22 hours 27 minutes before
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</html>The office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 9:40 AM MDT | Areal Flood Warning | BOI | Adams, Boise, Elmore, Gem, Valley | 12 hr |
| Jun 4, 11:26 AM MDT | River Flood Warning | BOI | Gem | 7 days |
| Jun 4, 11:26 AM MDT | River Flood Warning | BOI | Payette | 6 days |
| Jun 4, 11:31 AM MDT | River Flood Warning | BOI | Washington | 47 hr |
| Jun 4, 11:42 AM MDT | Flash Flood Warning | BOI | Adams, Washington | 108 min |
| Jun 4, 1:37 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Adams, Boise, Canyon, Gem, Payette and 2 more | 53 min |
| Jun 4, 1:57 PM MDT | Flash Flood Warning | BOI | Gem, Payette, Washington | 67 min |
| Jun 4, 2:21 PM MDT | Flash Flood Warning | BOI | Boise, Gem, Valley | 60 min |
| Jun 4, 2:55 PM MDT | Tornado Warning | BOI | Ada, Boise, Elmore | 50 min |
| Jun 4, 3:38 PM MDT | River Flood Warning | BOI | Adams, Washington | 19 hr |
Nearby
Flash Flood Warnings in Idaho, 2010Flash Flood Warnings in Oregon, 2010Every flash flood warning 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.