Alert archive / Nevada / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 13, NWS Reno, NV
NWS Reno, NV issued this severe thunderstorm warning at Jul 21, 2020, 3:52 PM PDT for Douglas County, Nevada; Alpine County, California. It was in force for 38 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 21, 2020, 3:52 PM PDT (22:52 UTC)
- Expired
- Jul 21, 2020, 4:30 PM PDT
- In force
- 38 min
- Issued by
- NWS Reno, NV
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Alpine County, CA, Douglas County, NV
The radar
The Reno radar (KRGX), 105 km from the middle of the area, began a volume at 22:52 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 21, 4:21 PM PDT | HAIL 0.7 | Gardnerville Ranch, NV | TRAINED WEATHER SPOTTER REPORTED PEA TO DIME SIZED HAIL AND VERY HEAVY RAINFALL. 0.95 INCHES WAS REPORTED IN 23 MINUTES. |
| Jul 21, 4:34 PM PDT | HAIL 0.25 | Gardnerville Ranchos, NV | TRAINED WEATHER SPOTTER REPORTED 0.56 INCHES OF VERY HEAVY RAINFALL AND PEA-SIZED HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Reno, NV (KREV), launched 12:00Z, 10.9 hours before the alert went out and 151 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
- 3100 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
388
WUUS55 KREV 212252
SVRREV
CAC003-NVC005-212330-
/O.NEW.KREV.SV.W.0013.200721T2252Z-200721T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Reno NV
352 PM PDT Tue Jul 21 2020
The National Weather Service in Reno has issued a
* Severe Thunderstorm Warning for...
Alpine County in northern California...
Douglas County in western Nevada...
* Until 430 PM PDT.
* At 352 PM PDT, a severe thunderstorm was located near Gardnerville
Ranchos, or 9 miles south of Gardnerville, moving northwest at 5
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, fencing and trees.
* Locations impacted include...
Gardnerville, Gardnerville Ranchos, Alpine Village, Mesa Vista,
Junction U.S 395 And NV 756, Paynesville, Junction Nv 88 And Nv
756, Junction Nv 88 And Nv 206, Gardnerville Ranch and Junction CA
88 And NV 88.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3879 11954 3870 11967 3886 11987 3896 11971
TIME...MOT...LOC 2252Z 129DEG 6KT 3881 11969
HAIL...1.00IN
WIND...60MPH
$$
Brong1 follow-up statement
080
WWUS55 KREV 212313
SVSREV
Severe Weather Statement
National Weather Service Reno NV
413 PM PDT Tue Jul 21 2020
CAC003-NVC005-212330-
/O.CON.KREV.SV.W.0013.000000T0000Z-200721T2330Z/
Alpine CA-Douglas NV-
413 PM PDT Tue Jul 21 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM PDT
FOR ALPINE AND DOUGLAS COUNTIES...
At 412 PM PDT, a severe thunderstorm was located near Gardnerville
Ranchos, or 7 miles south of Gardnerville, moving northwest at 5 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, fencing and trees.
Locations impacted include...
Gardnerville, Gardnerville Ranchos, Alpine Village, Mesa Vista,
Junction U.S 395 And NV 756, Paynesville, Junction Nv 88 And Nv 756,
Junction Nv 88 And Nv 206, Gardnerville Ranch and Junction CA 88 And
NV 88.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of
a building.
&&
LAT...LON 3879 11954 3870 11967 3886 11987 3896 11971
TIME...MOT...LOC 2312Z 129DEG 6KT 3883 11972
HAIL...1.00IN
WIND...60MPH
$$
BBThe office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 5:15 PM PDT | Severe Thunderstorm Warning | REV | Washoe | 30 min |
| Jul 20, 5:45 PM PDT | Special Weather Statement | REV | 60 min | |
| Jul 20, 6:08 PM PDT | Special Weather Statement | REV | 52 min | |
| Jul 21, 2:06 PM PDT | Special Weather Statement | REV | Douglas, Lyon, Mineral, Storey, Washoe | 99 min |
| Jul 21, 3:50 PM PDT | Special Weather Statement | REV | Douglas, Lyon, Mineral, Storey, Washoe | 115 min |
| Jul 21, 4:28 PM PDT | Flash Flood Warning | REV | Douglas, Lyon | 2 hr |
| Jul 20, 7:20 PM PDT | Severe Thunderstorm Warning | REV | Plumas | 25 min |
| Jul 20, 7:41 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Plumas | 34 min |
| Jul 20, 7:56 PM PDT | Flash Flood Warning | REV | Plumas | 2 hr |
| Jul 21, 3:33 PM PDT | Severe Thunderstorm Warning | REV | Plumas | 42 min |
| Jul 21, 4:07 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Plumas | 53 min |
| Jul 21, 4:22 PM PDT | Flash Flood Warning | REV | Plumas | 3 hr |
| Jul 21, 4:39 PM PDT | Severe Thunderstorm Warning | REV | Lassen | 51 min |
Nearby
Severe Thunderstorm Warnings in Nevada, 2020Severe Thunderstorm Warnings in California, 2020Every severe thunderstorm warning in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.