Alert archive / California / Flash Flood Watches in 2015
Flash Flood Watch 1, NWS Reno, NV
NWS Reno, NV issued this flash flood watch at Jun 9, 2015, 1:29 PM PDT for 7 counties in Nevada; 9 counties in California. It took effect at Jun 10, 2015, 11:00 AM PDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Jun 9, 2015, 1:29 PM PDT (20:29 UTC)
- In effect from
- Jun 10, 2015, 11:00 AM PDT
- Expired
- Jun 10, 2015, 10:33 PM PDT
- In force
- 12 hr
- Issued by
- NWS Reno, NV
- Flood severity
- None
Counties Alpine County, CA, El Dorado County, CA, Lassen County, CA, Modoc County, CA, Mono County, CA, Nevada County, CA, Placer County, CA, Plumas County, CA, Sierra County, CA, Churchill County, NV, Douglas County, NV, Lyon County, NV, Mineral County, NV, Pershing County, NV, Storey County, NV, Washoe County, NV
The radar
The Reno radar (KRGX), 39 km from the middle of the area, began a volume at 20:32 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
Medford/Jackson, OR (KMFR), launched 12:00Z, 8.5 hours before the alert went out and 407 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
- 2350 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- -48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 Reno, NV wrote its last area forecast discussion before this flash flood watch went out at Jun 9, 8:32 AM PDT, 4 hours 57 minutes earlier.
Area forecast discussion, Jun 9, 8:32 AM PDT, 4 hours 57 minutes before
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</html>In the hours before
Special weather statement, Jun 9, 12:27 PM PDT, 1 hour 2 minutes before
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</html>Nearby
Flash Flood Watches in California, 2015Flash Flood Watches in Nevada, 2015Every flash flood watch in 2015
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.