Alert archive / California / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 13, NWS Sacramento, CA
NWS Sacramento, CA issued this severe thunderstorm warning at Sep 5, 2017, 2:54 PM PDT for Alpine County, Amador County, El Dorado County, California. It was in force for 34 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 5, 2017, 2:54 PM PDT (21:54 UTC)
- Expired
- Sep 5, 2017, 3:28 PM PDT
- In force
- 34 min
- Issued by
- NWS Sacramento, CA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Alpine County, CA, Amador County, CA, El Dorado County, CA
The radar
The Reno radar (KRGX), 128 km from the middle of the area, began a volume at 21:56 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, 9.9 hours before the alert went out and 189 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
- 3366 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
480
WUUS56 KSTO 052154
SVRSTO
CAC003-005-017-052245-
/O.NEW.KSTO.SV.W.0013.170905T2154Z-170905T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sacramento CA
254 PM PDT TUE SEP 5 2017
The National Weather Service in Sacramento has issued a
* Severe Thunderstorm Warning for...
Northwestern Alpine County in northern California...
East central El Dorado County in northern California...
Northeastern Amador County in northern California...
* Until 345 PM PDT
* At 254 PM PDT, a severe thunderstorm was located over Kirkwood,
moving west at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Carson Pass, Kirkwood, Twin Bridges, Kirkwood Meadows, Kirkwood Ski
Area, Sierra At Tahoe and Kit Carson.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3863 12025 3881 12026 3883 12010 3877 12000
3869 11998 3867 11994 3866 11995
TIME...MOT...LOC 2154Z 072DEG 10KT 3871 12011
HAIL...1.00IN
WIND...60MPH
$$
cs1 follow-up statement
514
WWUS56 KSTO 052228
SVSSTO
Severe Weather Statement
National Weather Service Sacramento CA
328 PM PDT TUE SEP 5 2017
CAC003-005-017-052238-
/O.CAN.KSTO.SV.W.0013.000000T0000Z-170905T2245Z/
Alpine CA-El Dorado CA-Amador CA-
328 PM PDT TUE SEP 5 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ALPINE...EAST
CENTRAL EL DORADO AND NORTHEASTERN AMADOR COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.
LAT...LON 3863 12025 3881 12026 3883 12010 3877 12000
3869 11998 3867 11994 3866 11995
TIME...MOT...LOC 2224Z 072DEG 10KT 3868 12023
$$
csThe office that day
Everything else NWS Sacramento, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 2:39 PM PDT | Special Weather Statement | STO | Alpine | 51 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.