Alert archive / California / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 13, NWS Reno, NV
NWS Reno, NV issued this severe thunderstorm warning at Aug 2, 2017, 3:37 PM PDT for Placer County, California. It was in force for 23 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
- Aug 2, 2017, 3:37 PM PDT (22:37 UTC)
- Expired
- Aug 2, 2017, 4:00 PM PDT
- In force
- 23 min
- Issued by
- NWS Reno, NV
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Placer County, CA
The radar
The Reno radar (KRGX), 87 km from the middle of the area, began a volume at 22:38 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, 10.6 hours before the alert went out and 177 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
- 39 J/kg
- Mixed-layer CIN
- -322 J/kg
- Mixed-layer LCL
- 3192 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- -9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
214
WUUS55 KREV 022237
SVRREV
CAC061-022300-
/O.NEW.KREV.SV.W.0013.170802T2237Z-170802T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Reno NV
337 PM PDT WED AUG 2 2017
The National Weather Service in Reno has issued a
* Severe Thunderstorm Warning for...
Placer County in central California...
* Until 400 PM PDT
* At 336 PM PDT, a severe thunderstorm was located near Northstar, or
near Squaw Valley, and is nearly stationary.
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, fencing, and trees. Dust storms
resulting in serious accidents.
* Locations impacted include...
Alpine Meadows, Squaw Valley, Tahoe City, Northstar, Granite Flat
Campground, Ca 89 At Placer-Nevada Co Line, Squaw Valley Ski Area,
Silver Creek Campground, Northstar Ski Area and Sunnyside-Tahoe
City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3931 12027 3931 12009 3915 12014 3917 12024
3919 12026 3922 12027
TIME...MOT...LOC 2236Z 359DEG 2KT 3925 12017
HAIL...1.00IN
WIND...60MPH
$$2 follow-up statements
150
WWUS55 KREV 022243
SVSREV
Severe Weather Statement
National Weather Service Reno NV
343 PM PDT WED AUG 2 2017
CAC061-022300-
/O.CON.KREV.SV.W.0013.000000T0000Z-170802T2300Z/
Placer CA-
343 PM PDT WED AUG 2 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM PDT
FOR PLACER COUNTY...
At 342 PM PDT, a severe thunderstorm was located near Northstar, or
near Squaw Valley, and is nearly stationary.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, fencing, and trees.
Locations impacted include...
Alpine Meadows, Squaw Valley, Tahoe City, Northstar, Granite Flat
Campground, Ca 89 At Placer-Nevada Co Line, Squaw Valley Ski Area,
Silver Creek Campground, Northstar Ski Area and Sunnyside-Tahoe City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3931 12027 3931 12009 3915 12014 3917 12024
3919 12026 3922 12027
TIME...MOT...LOC 2242Z 087DEG 1KT 3925 12018
HAIL...1.00IN
WIND...60MPH
$$639
WWUS55 KREV 022257
SVSREV
Severe Weather Statement
National Weather Service Reno NV
357 PM PDT WED AUG 2 2017
CAC061-022307-
/O.EXP.KREV.SV.W.0013.000000T0000Z-170802T2300Z/
Placer CA-
357 PM PDT WED AUG 2 2017
...THE SEVERE THUNDERSTORM WARNING FOR PLACER COUNTY WILL EXPIRE AT
400 PM PDT...
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 will be allowed to expire. However small hail
is still possible with this thunderstorm.
LAT...LON 3931 12027 3931 12009 3915 12014 3917 12024
3919 12026 3922 12027
TIME...MOT...LOC 2257Z 359DEG 2KT 3924 12018
$$The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 2:57 AM PDT | Excessive Heat Warning | REV | Lassen, Modoc, Plumas, Sierra | 38 hr |
| Aug 2, 2:45 PM PDT | Special Weather Statement | REV | Alpine, Lassen | 2 hr |
| Aug 2, 4:41 PM PDT | Severe Thunderstorm Warning | REV | El Dorado, Placer | 34 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.