Alert archive / California / Flash Flood Warnings in 2007
Flash Flood Warning 4, NWS Reno, NV
NWS Reno, NV issued this flash flood warning at Jul 6, 2007, 5:02 PM PDT for Lassen County, California. It was in force for 118 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
- Jul 6, 2007, 5:02 PM PDT (00:02 UTC)
- Expired
- Jul 6, 2007, 7:00 PM PDT
- In force
- 118 min
- Issued by
- NWS Reno, NV
- Area
- Whole counties
County Lassen County, CA
The radar
The Reno radar (KRGX), 140 km from the middle of the area, began a volume at 00:04 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 00:00Z, 0.0 hours before the alert went out and 238 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
- 23 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 4379 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -47 m²/s²
- 0-3 km storm-relative helicity
- -30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KREV 070004 FFWREV CAC035-070200- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE RENO NV 502 PM PDT FRI JUL 6 2007 THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL LASSEN COUNTY IN NORTHERN CALIFORNIA... * UNTIL 700 PM PDT * AT 500 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. * THE STORM PRODUCING FLASH FLOODING WILL REMAIN BETWEEN SUSANVILLE AND JANESVILLE NEAR HIGHWAY 395. SPOTTERS IN THE AREA HAVE REPORTED VERY HEAVY RAIN. THE CREEKS MOST AFFECTED INCLUDE ELYSIAN CREEK AND BAXTER CREEK. NEAR AND SOUTH OF HIGHWAY 395. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. LAT...LON 4028 12063 4025 12051 4037 12049 4039 12061 $$ JHW
1 follow-up statement
000 WGUS75 KREV 070138 FFSREV FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE RENO NV 633 PM PDT FRI JUL 6 2007 CAC035-070143- LASSEN CA- 633 PM PDT FRI JUL 6 2007 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTH CENTRAL LASSEN COUNTY... SPOTTERS HAVE INDICATED THAT HEAVY RAIN HAS TAPERED OFF ACROSS THE AREA BETWEEN SUSANVILLE AND JANESVILLE. CREEKS AND STREAMS HAVE BEGUN TO RECEED. DRIVERS SHOULD STILL BE AWARE FOR STANDING WATER IN ROADWAYS. LAT...LON 4028 12063 4025 12051 4037 12049 4039 12061 $$ HOON
The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 10:00 PM PDT | Dense Smoke Advisory | REV | Lassen, Plumas, Sierra | 11 hr |
| Jul 7, 2:26 PM PDT | Dense Smoke Advisory | REV | Lassen, Plumas, Sierra | 19 hr |
Nearby
Flash Flood Warnings in California, 2007Every flash flood warning in 2007
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.