Alert archive / Nevada / Special Weather Statements in 2012

Special Weather Statement, NWS Elko, NV

August 21, 2012Lander County, White Pine County, Nevada

NWS Elko, NV issued this special weather statement at Aug 21, 2012, 4:18 PM PDT for Lander County, White Pine County, Nevada. It was in force for 57 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 21, 2012, 4:18 PM PDT (23:18 UTC)
Expired: Aug 21, 2012, 5:15 PM PDT
In force: 57 min
Issued by: NWS Elko, NV

Counties Lander County, NV, White Pine County, NV

The radar

The Elko radar (KLRX), 160 km from the middle of the area, began a volume at 23:22 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, 11.3 hours before the alert went out and 202 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3870 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 21, 2:50 PM PDT, 1 hour 28 minutes earlier.

Area forecast discussion, Aug 21, 2:50 PM PDT, 1 hour 28 minutes before

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Hazardous weather outlook, Aug 21, 1:33 AM PDT, 14 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ELKO NV
133 AM PDT TUE AUG 21 2012

NVZ031-033>041-220845-
NORTHERN ELKO COUNTY-SOUTHEASTERN ELKO COUNTY-
RUBY MOUNTAINS/EAST HUMBOLDT RANGE-WHITE PINE COUNTY-
NORTHERN LANDER COUNTY AND NORTHERN EUREKA COUNTY-
SOUTHERN LANDER COUNTY AND SOUTHERN EUREKA COUNTY-
SOUTHWESTERN ELKO COUNTY-SOUTH CENTRAL ELKO COUNTY-
NORTHWESTERN NYE COUNTY-NORTHEASTERN NYE COUNTY-
133 AM PDT TUE AUG 21 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
NEVADA...NORTH CENTRAL NEVADA...NORTHEAST NEVADA AND SOUTH
CENTRAL NEVADA.

.DAY ONE...THIS MORNING THROUGH TONIGHT.

DEEP MOISTURE WILL COMBINE WITH INSTABILITY AND LIFT TO PRODUCE
SHOWERS AND THUNDERSTORMS ACROSS THE MAJORITY OF NORTHERN NEVADA
THIS MORNING AND AFTERNOON. STORM MOTION WILL GENERALLY BE SOUTHWEST TO
NORTHEAST TO BEGIN THE DAY. THE THREATS FROM TODAY'S STORMS WILL
BE HEAVY RAIN...STRONG WIND GUSTS TO 45 TO 55 MPH...AND CLOUD TO
GROUND LIGHTNING. SOME OF THE STORMS MAY BE STRONG...AND COULD
PRODUCE SMALL HAIL AND WIND GUSTS IN EXCESS OF 58 MPH.

ALTHOUGH LOCALIZED FLOODING IS A CONCERN FOR MUCH OF NORTHERN
NEVADA TODAY...A HEIGHTENED RISK FOR FLASH FLOODING EXISTS IN
WHITE PINE COUNTY. SIGNIFICANT MOISTURE AND THE POSSIBILITY FOR
STORMS TO MOVE OVER OR DEVELOP OVER THE SAME AREAS HAS LEAD TO THE
ISSUANCE OF A FLASH FLOOD WATCH TODAY FROM 11 AM TO 11 PM FOR THIS AREA.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH SUNDAY.

LOOK FOR SHOWERS AND THUNDERSTORMS TO CONTINUE MAINLY OVER THE
SOUTHEASTERN HALF OF THE FORECAST AREA WEDNESDAY...WITH ACTIVITY
DIMINISHING IN AREAL COVERAGE THURSDAY AS MUCH DRIER AIR MOVES IN
FROM THE WEST.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ASKED TO REPORT WEATHER PHENOMENA ACCORDING TO
STANDARD OPERATING PROCEDURE.

In the hours before

Special weather statement, Aug 21, 1:32 PM PDT, 2 hours 46 minutes before

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Special weather statement, Aug 21, 1:41 PM PDT, 2 hours 37 minutes before

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Special weather statement, Aug 21, 2:26 PM PDT, 1 hour 52 minutes before

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Special weather statement, Aug 21, 3:34 PM PDT, 44 minutes before

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Special weather statement, Aug 21, 4:18 PM PDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 21, 2:26 AM PDT	Flash Flood Watch	LKN	Elko, Nye, White Pine	41 hr
Aug 21, 11:59 AM PDT	Severe Thunderstorm Warning	LKN	Eureka, White Pine	46 min
Aug 21, 12:40 PM PDT	Tornado Warning	LKN	Eureka, White Pine	35 min
Aug 21, 1:06 PM PDT	Flash Flood Warning	LKN	Eureka, White Pine	114 min
Aug 21, 1:07 PM PDT	Severe Thunderstorm Warning	LKN	Eureka, White Pine	23 min
Aug 21, 1:18 PM PDT	Severe Thunderstorm Warning	LKN	Lander, Nye	42 min
Aug 21, 1:32 PM PDT	Special Weather Statement	LKN	White Pine	43 min
Aug 21, 1:41 PM PDT	Special Weather Statement	LKN		49 min
Aug 21, 2:26 PM PDT	Special Weather Statement	LKN	White Pine	34 min
Aug 21, 2:38 PM PDT	Flash Flood Warning	LKN	Lander, Nye	3 hr
Aug 21, 3:34 PM PDT	Special Weather Statement	LKN		41 min
Aug 21, 3:36 PM PDT	Areal Flood Advisory	LKN	Eureka, White Pine	3 hr
Aug 21, 4:38 PM PDT	Areal Flood Advisory	LKN	Eureka, Nye, White Pine	3 hr
Aug 21, 4:53 PM PDT	Areal Flood Advisory	LKN	Eureka, Lander, Nye	3 hr

Nearby

Special Weather Statements in Nevada, 2012 Every special weather statement in 2012

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.