Alert archive / Nevada / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 20, NWS Elko, NV

July 9, 2017Elko County, Eureka County, Nevada

NWS Elko, NV issued this severe thunderstorm warning at Jul 9, 2017, 3:27 PM PDT for Elko County, Eureka County, Nevada. It was in force for 48 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 9, 2017, 3:27 PM PDT (22:27 UTC)
Expired: Jul 9, 2017, 4:15 PM PDT
In force: 48 min
Issued by: NWS Elko, NV
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Elko County, NV, Eureka County, NV

The radar

The Elko radar (KLRX), 86 km from the middle of the area, began a volume at 22:27 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

Elko, NV (KLKN), launched 12:00Z, 10.5 hours before the alert went out and 140 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 18 J/kg
Mixed-layer CIN: -392 J/kg
Mixed-layer LCL: 2831 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 56 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Elko, NV wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 9, 2:15 PM PDT, 1 hour 12 minutes earlier.

Area forecast discussion, Jul 9, 2:15 PM PDT, 1 hour 12 minutes before

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In the hours before

Special weather statement, Jul 9, 1:23 PM PDT, 2 hours 4 minutes before

Special Weather Statement
National Weather Service Elko NV
123 PM PDT SUN JUL 9 2017

NVZ031-092100-
Northern Elko County NV-
123 PM PDT SUN JUL 9 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN ELKO COUNTY UNTIL
200 PM PDT...

At 123 PM PDT, Doppler radar was tracking a moderate thunderstorm 11
miles west of Jackpot, moving northeast at 15 mph.

Wind gusts 40 to 50 mph will be possible with this storm along with
brief rain and occasional cloud to ground lightning.

This storm will remain over mainly rural areas of northeastern Elko
County.

LAT...LON 4190 11468 4186 11493 4196 11503 4200 11500
      4200 11479
TIME...MOT...LOC 2023Z 233DEG 11KT 4196 11490

86

The office that day

Everything else NWS Elko, NV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 8, 5:01 PM PDT	Special Weather Statement	LKN	Elko	29 min
Jul 8, 5:05 PM PDT	Special Weather Statement	LKN		40 min
Jul 8, 5:30 PM PDT	Special Weather Statement	LKN		45 min
Jul 8, 5:40 PM PDT	Special Weather Statement	LKN	Elko	50 min
Jul 8, 7:16 PM PDT	Special Weather Statement	LKN		44 min
Jul 8, 8:05 PM PDT	Special Weather Statement	LKN		40 min
Jul 9, 2:09 PM PDT	Red Flag Warning	LKN	Elko	33 hr
Jul 9, 4:24 PM PDT	Areal Flood Advisory	LKN	Elko	3 hr
Jul 9, 4:26 PM PDT	Special Weather Statement	LKN	Elko	49 min
Jul 9, 4:33 PM PDT	Areal Flood Advisory	LKN	White Pine	3 hr
Jul 9, 4:48 PM PDT	Areal Flood Advisory	LKN	Lander	3 hr

Nearby

Severe Thunderstorm Warnings in Nevada, 2017 Every 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.