Alert archive / California / Flash Flood Warnings in 2017
Flash Flood Warning 5, NWS Reno, NV
NWS Reno, NV issued this flash flood warning at Jul 29, 2017, 1:48 PM PDT for Alpine County, California. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2017, 1:48 PM PDT (20:48 UTC)
- Expired
- Jul 29, 2017, 3:45 PM PDT
- In force
- 117 min
- Issued by
- NWS Reno, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Alpine County, CA
The radar
The Reno radar (KRGX), 111 km from the middle of the area, began a volume at 20:49 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
Reno, NV (KREV), launched 12:00Z, 8.8 hours before the alert went out and 163 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
- 57 J/kg
- Mixed-layer CIN
- -290 J/kg
- Mixed-layer LCL
- 2590 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
384 WGUS55 KREV 292048 FFWREV CAC003-292245- /O.NEW.KREV.FF.W.0005.170729T2048Z-170729T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Reno NV 148 PM PDT SAT JUL 29 2017 The National Weather Service in Reno has issued a * Flash Flood Warning for... Alpine County in northern California... * Until 345 PM PDT * At 147 PM PDT, Doppler radar indicated thunderstorms producing very heavy rain across the warned area. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Mesa Vista, Woodfords, Alpine Village, Indian Creek Campground, Indian Creek Reservoir and Paynesville. LAT...LON 3874 11975 3876 11990 3887 11987 3884 11977 $$ JW
1 follow-up statement
434 WGUS75 KREV 292129 FFSREV Flash Flood Statement National Weather Service Reno NV 229 PM PDT SAT JUL 29 2017 CAC003-292245- /O.CON.KREV.FF.W.0005.000000T0000Z-170729T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Alpine CA- 229 PM PDT SAT JUL 29 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM PDT FOR ALPINE COUNTY... At 229 PM PDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is expected to begin shortly. Some locations that will experience flooding include... Mesa Vista, Woodfords, Alpine Village, Indian Creek Campground, Indian Creek Reservoir and Paynesville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 3874 11975 3876 11990 3887 11987 3884 11977 $$ JW
The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 1:32 PM PDT | Special Weather Statement | REV | Alpine | 43 min |
Nearby
Flash Flood Warnings in California, 2017Every flash flood warning in 2017
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.