Alert archive / Nevada / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 11, NWS Reno, NV

July 13, 2002Pershing County, Washoe County, Nevada

NWS Reno, NV issued this severe thunderstorm warning at Jul 13, 2002, 4:37 PM PDT for Pershing County, Washoe County, Nevada. It was in force for 38 min. 1 report 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 13, 2002, 4:37 PM PDT (23:37 UTC)
Expired: Jul 13, 2002, 5:15 PM PDT
In force: 38 min
Issued by: NWS Reno, NV
Area: Counties, with a storm outline in the text

Counties Pershing County, NV, Washoe County, NV

The radar

The Reno radar (KRGX), 103 km from the middle of the area, began a volume at 23:41 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 13, 4:52 PM PDT	Thunderstorm Wind 56 E	Gerlach, NV

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Reno, NV (KREV), launched 12:00Z, 11.6 hours before the alert went out and 156 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: 2722 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: 70 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.

932 
WUUS55 KREV 132337
SVRREV
NVC027-031-140015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RENO NV
434 PM PDT SAT JUL 13 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN PERSHING COUNTY IN WEST CENTRAL NEVADA
  EAST CENTRAL WASHOE COUNTY IN WESTERN NEVADA
  THIS INCLUDES THE CITY OF GERLACH

* UNTIL 515 PM PDT

* AT 430 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
AN AREA OF SEVERE THUNDERSTORMS ALONG SR 447 SOUTH OF GERLACH...TO 
GERLACH...EAST INTO WESTERN PERSHING COUNTY. 

HAIL...INTENSE RAIN...FREQUENT LIGHTNING AND AND STRONG DAMAGING 
WINDS ARE LIKELY WITH THESE STORMS. WHEN INDOORS...STAY AWAY FROM 
WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN 
EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE 
THUNDERSTORMS APPROACH.

REPORT DAMAGING WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

LAT...LON 4094 11961 4028 11957 4027 11888 4096 11895

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 Reno, NV wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 13, 2:45 PM PDT, 1 hour 52 minutes earlier.

Area forecast discussion, Jul 13, 2:45 PM PDT, 1 hour 52 minutes before

WESTERN NEVADA AND EASTERN CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
245 PM PDT SAT JUL 13 2002

HIGH PRES MOVING OFF TO THE EAST THIS AFTERNOON WITH THE WESTERN
EDGE OF CONVECTION ON THE EAST SLOPES OF THE SIERRA MAINLY SOUTH OF
LAKE TAHOE.  THIS ACTIVITY SHOULD CONTINUE INTO THE EVENING HOURS.
NEW MODELS THIS MORNING HAVE NOW BEEN CONSISTENT WITH THE LAST FEW
RUNS IN BRING PACIFIC TROF ALONG THE WEST COAST BY TUES.  THIS
SHOULD PUSH MOST OF THE TSTM ACTIVITY EAST OUT OF THE CWA.
CONVECTION OVER SUN AND MON SHOULD BE LESS OVR WESTERN NEVADA.  WILL
DRY THE AREA OUT BY TUES.

IN THE EXTENDED...WEDNESDAY THROUGH FRIDAY...HIGH PRES HAS SHIFTED
EAST OF GREAT BASIN AS BROAD UPPER LEVEL TROF MOVES ONSHORE FOR WED.
ALTHO AVN HINTS AT INCREASED MOISTURE WITH THIS FEATURE APPROACHING
FAR NW NV...WILL NOT INTRODUCE POPS THERE ATTM. MDT SW FLOW IN
ADVANCE OF TROF OFF CA COAST WILL KEEP DRIER AIR ACRS NRN SIERRA AND
WESTERN GRT BASIN WED ALG WITH COOLER TEMPS. AVN INDICATES SPLIT
FLOW FOR THUR WITH WEAK TROF ACROS AREA AND STRONGER SW FLOW BOTH TO
OUR NORTH AND SOUTH. WITH LITTLE CHANCE FOR MSTR TO RECOVER WILL
KEEP THUR DRY AS WELL.  FOR FRI AND SAT WILL RETAIN CURRENT MENTION
OF SLIGHT CHANCE THUNDERSTORMS ALL ZONES EXCEPT CHANCE FAR SOUTH AS
TROF MOVES INLAND ACROSS CA AND WRN GRT BASIN. WEAK FLOW ALOFT AND
AND DVLPG S-SE FLOW AT MID/UPR LEVELS WILL ALLOW MSTR TO BEGIN TO
RECOVER SOMEWHAT. MRF DEVELOPS CUTOFF UPR LOW SRN CA COAST FOR
WEEKEND WHICH WOULD FAVOR CHC PCPN ACROSS AREA AS WELL ESPECIALLY
SOUTH. LATEST DISCUSSIONS FROM TSPC AND LASTEST AVN INDICATE THAT TS
CHRISTINA MAY DRIFT W-NW AND NOT GET CAUGHT UP IN WESTERLIES SO
REMNANTS MAY NOT BE A FACTOR FOR END OF WEEK. TEMPS WILL RETURN TO
NEAR NORMAL FOR END OF WEEK AND THROUGH WEEKEND.

.REV...NONE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 1:54 PM PDT	Severe Thunderstorm Warning	REV	Lyon, Storey, Washoe	51 min
Jul 13, 3:03 PM PDT	Severe Thunderstorm Warning	REV	Washoe	27 min
Jul 13, 3:28 PM PDT	Flash Flood Warning	REV	Douglas, Lyon, Storey, Washoe	2 hr
Jul 13, 4:06 PM PDT	Severe Thunderstorm Warning	REV	Douglas	39 min
Jul 13, 4:45 PM PDT	Severe Thunderstorm Warning	REV	Douglas, Washoe	45 min

Nearby

Severe Thunderstorm Warnings in Nevada, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.