Alert archive / California / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 21, NWS Reno, NV
NWS Reno, NV issued this severe thunderstorm warning at Sep 6, 2017, 4:43 PM PDT for Lassen County, Plumas County, California. It was in force for 26 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
- Sep 6, 2017, 4:43 PM PDT (23:43 UTC)
- Expired
- Sep 6, 2017, 5:09 PM PDT
- In force
- 26 min
- Issued by
- NWS Reno, NV
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Lassen County, CA, Plumas County, CA
The radar
The Beale AFB radar (KBBX), 103 km from the middle of the area, began a volume at 23:46 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, 11.7 hours before the alert went out and 244 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
- 56 J/kg
- Mixed-layer CIN
- -355 J/kg
- Mixed-layer LCL
- 2308 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
155
WUUS55 KREV 062343
SVRREV
CAC035-063-070030-
/O.NEW.KREV.SV.W.0021.170906T2343Z-170907T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Reno NV
443 PM PDT WED SEP 6 2017
The National Weather Service in Reno has issued a
* Severe Thunderstorm Warning for...
Plumas County in northern California...
West central Lassen County in northern California...
* Until 530 PM PDT
* At 438 PM PDT, a severe thunderstorm was located near Genesee, or
16 miles northeast of Quincy, moving northwest at 20 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, fencing, and trees. Dust
storms resulting in serious accidents.
* Locations impacted include...
Westwood, Ca 36 At Plumas-Lassen Co Line and Fredonyer Pass.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4044 12085 4011 12060 4003 12081 4019 12088
4019 12093 4022 12095 4022 12100 4023 12101
4023 12104 4026 12106 4033 12106
TIME...MOT...LOC 2338Z 148DEG 16KT 4013 12079
HAIL...0.88IN
WIND...60MPH
$$2 follow-up statements
265
WWUS55 KREV 062359
SVSREV
Severe Weather Statement
National Weather Service Reno NV
459 PM PDT WED SEP 6 2017
CAC035-063-070030-
/O.CON.KREV.SV.W.0021.000000T0000Z-170907T0030Z/
Plumas CA-Lassen CA-
459 PM PDT WED SEP 6 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM PDT
FOR PLUMAS AND WEST CENTRAL LASSEN COUNTIES...
At 459 PM PDT, a severe thunderstorm was located 8 miles northeast of
Crescent Mills, or 19 miles north of Quincy, moving northwest at 15
mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, fencing, and trees. Dust
storms resulting in serious accidents.
Locations impacted include...
Westwood, Ca 36 At Plumas-Lassen Co Line and Fredonyer Pass.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4044 12085 4011 12060 4003 12081 4019 12088
4019 12093 4022 12095 4022 12100 4023 12101
4023 12104 4026 12106 4033 12106
TIME...MOT...LOC 2359Z 151DEG 14KT 4020 12083
HAIL...0.88IN
WIND...60MPH
$$640
WWUS55 KREV 070009
SVSREV
Severe Weather Statement
National Weather Service Reno NV
509 PM PDT WED SEP 6 2017
CAC035-063-070019-
/O.CAN.KREV.SV.W.0021.000000T0000Z-170907T0030Z/
Plumas CA-Lassen CA-
509 PM PDT WED SEP 6 2017
...THE SEVERE THUNDERSTORM WARNING FOR PLUMAS AND WEST CENTRAL LASSEN
COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled.
LAT...LON 4044 12085 4011 12060 4003 12081 4019 12088
4019 12093 4022 12095 4022 12100 4023 12101
4023 12104 4026 12106 4033 12106
TIME...MOT...LOC 0007Z 148DEG 16KT 4024 12086
$$The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 5:50 PM PDT | Special Weather Statement | REV | Lassen | 55 min |
| Sep 5, 6:29 PM PDT | Special Weather Statement | REV | Alpine | 61 min |
| Sep 6, 3:26 AM PDT | Fire Weather Watch | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 5 hr |
| Sep 6, 8:48 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 23 hr |
| Sep 6, 3:35 PM PDT | Special Weather Statement | REV | Plumas | 85 min |
Nearby
Severe Thunderstorm Warnings in California, 2017Every severe thunderstorm 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.