Alert archive / Nevada / Special Weather Statements in 2014

Special Weather Statement, NWS Reno, NV

July 18, 2014

NWS Reno, NV issued this special weather statement at Jul 18, 2014, 5:50 PM PDT. It was in force for 55 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: Jul 18, 2014, 5:50 PM PDT (00:50 UTC)
Expired: Jul 18, 2014, 6:45 PM PDT
In force: 55 min
Issued by: NWS Reno, NV

The radar

The Reno radar (KRGX), 99 km from the middle of the area, began a volume at 00:51 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 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 Reno, NV wrote its last area forecast discussion before this special weather statement went out at Jul 18, 2:08 PM PDT, 3 hours 42 minutes earlier.

Area forecast discussion, Jul 18, 2:08 PM PDT, 3 hours 42 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
208 PM PDT FRI JUL 18 2014

.SYNOPSIS...
ABUNDANT MOISTURE AND LIGHT WINDS ALOFT WILL LEAD TO SLOW MOVING
THUNDERSTORMS WITH HEAVY RAIN AND GUSTY OUTFLOW WINDS INTO SATURDAY.
A FLASH FLOOD WATCH IS IN EFFECT FOR PORTIONS OF THE SIERRA AND
WESTERN NEVADA THROUGH SATURDAY. DRIER AIR SHOULD BEGIN TO MOVE
INTO THE AREA MONDAY, WITH DECREASING CHANCES OF THUNDERSTORMS.
DRY AND BREEZY CONDITIONS ARE POSSIBLE TUESDAY THROUGH THURSDAY.

&&

.SHORT TERM...

OVERALL NO CHANGE TO THE FORECAST WITH THE FLASH FLOOD THREAT
ENDING SATURDAY AS WINDS ALOFT INCREASE SUNDAY. THE FLASH FLOOD
THREAT WILL CONTINUE INTO SATURDAY, ESPECIALLY ALPINE, MONO,
DOUGLAS, LYON AND WESTERN MINERAL COUNTY, WHERE HEAVY RAIN HAS
OCCURRED THE LAST FEW DAYS. GUSTY WINDS TO 45 MPH AND HAIL ARE
ALSO POSSIBLE WITH THE STRONGER STORMS THE REST OF TODAY AND
SATURDAY.

LACK OF CLOUDS TODAY ALLOWED THE INITIAL SHOWERS AND THUNDERSTORMS
TO DEVELOP OVER LASSEN/PLUMAS COUNTIES AROUND NOON. A LIGHT
ZEPHYR AND OUTFLOWS FROM THE STORMS OVER THE SIERRA, WILL COMBINE
WITH SURFACE HEATING TO HELP TOUCH OFF STORMS ACROSS FAR WESTERN
NEVADA THIS AFTERNOON THROUGH THIS EVENING. MOST OF THE ACTIVITY
FOR TODAY SHOULD END BY 8-9 PM. A 10 MPH WESTWARD MOVEMENT OF THE
THUNDERSTORMS OVER LASSEN, PLUMAS AND NORTHERN WASHOE SHOULD
PREVENT FLASH FLOODING, THOUGH HEAVY RAIN WILL OCCUR.

MODELS CONTINUE TO SHOW A WAVE LIFTING NORTH ACROSS THE AREA
SATURDAY NIGHT AND SUNDAY BETWEEN A LOW OFF THE CALIFORNIA COAST
AND THE HIGH OVER ARIZONA. THERE ARE SOME DIFFERENCES IN TIMING OF
THE WAVE, LIKELY DUE TO THE LIGHT SOUTH STEERING FLOW. THE NAM IS
THE QUICKEST WITH THE WAVE REACHING MONO-MINERAL COUNTIES LATE
SATURDAY AFTERNOON, WHILE THE GFS LIFTS THE WAVE INTO THE AREA
SATURDAY NIGHT. DID EXPAND THE SLIGHT CHANCE OF THUNDERSTORMS
SATURDAY NIGHT/SUNDAY MORNING NORTHWARD TO I-80, GIVEN THE TIMING
DIFFERENCES. ALSO THERE IS A DEFORMATION ZONE JUST AHEAD OF THE
WAVE, WHICH MAY ALSO HELP DEVELOP SHOWERS SATURDAY NIGHT.

BEHIND THE WAVE ON SUNDAY THE SOUTH-SOUTHWEST FLOW ALOFT
INCREASES, WHICH WILL PRODUCE 10-15 MPH STORM MOTION AND GREATLY
DIMINISH THE FLASH FLOOD THREAT. HOWEVER ABUNDANT MOISTURE WILL
REMAIN IN PLACE, SO HEAVY RAIN DOES REMAIN POSSIBLE WITH ANY
THUNDERSTORMS SUNDAY. THE INCREASING FLOW WILL ALSO HELP TO PUSH
STORMS OFF THE SIERRA CREST AND INTO WESTERN NEVADA TO HIGHWAY 95.
BRONG

.LONG TERM...MONDAY THROUGH FRIDAY...

A SOUTH-TO-SOUTHWEST FLOW ALOFT WILL HELP PUSH MOISTURE TOWARDS THE
OREGON BORDER MONDAY. A WEAK TROUGH ALONG THE WEST COAST WILL ALSO
BRING SLIGHT COOLING ALOFT WHICH COULD MAKE THE AIR MASS WEAKLY
UNSTABLE MONDAY AFTERNOON. THIS WARRANTS A SLIGHT CHANCE FOR
THUNDERSTORMS NORTH OF A SUSANVILLE-GERLACH LINE, BUT AN ISOLATED
STRIKE OR TWO CAN'T BE RULED OUT ELSEWHERE OVER THE SIERRA. THE
DRYING TREND CONTINUES TUESDAY WHICH SHOULD MAKE THE AIR MASS TOO
STABLE FOR SHOWERS OR THUNDERSTORMS. THE AFOREMENTIONED TROUGH IS
EXPECTED TO MOVE ACROSS THE PACIFIC NORTHWEST WEDNESDAY, WHICH COULD
CAUSE STRONGER ZEPHYR WINDS ACROSS WESTERN NV. A RIDGE OF HIGH
PRESSURE IS THEN EXPECTED TO BUILD OVER THE GREAT BASIN THROUGH THE
REST OF THE WEEK. THIS PATTERN SHOULD BRING DRY CONDITIONS TO THE
SIERRA AND WESTERN NV THROUGH FRIDAY, ALONG WITH A SLOW WARMING
TREND. TEMPERATURES ARE FORECAST TO BE IN THE UPPER 90S TO
AROUND 100 IN THE NEVADA DESERT THU-FRI AFTERNOONS. JCM

&&

.AVIATION...
THE THUNDERSTORMS CURRENTLY DEVELOPING OVER THE SIERRA COULD SPREAD
OVER THE BASIN THIS EVENING. THUNDERSTORMS WILL CONTINUE TO DEVELOP
EACH AFTERNOON AND EVENING THROUGH SUNDAY. THE MAIN THREATS ARE
TURBULENCE NEAR STORMS...SMALL HAIL AND LOCALLY HEAVY RAINS...AND
OUTFLOW WIND GUSTS TO 40 KTS. JCM

&&

.REV WATCHES/WARNINGS/ADVISORIES...
NV...FLASH FLOOD WATCH THROUGH SATURDAY EVENING NVZ001>003.

CA...FLASH FLOOD WATCH THROUGH SATURDAY EVENING CAZ072-073.

&&

FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/RENO (ALL LOWER CASE)

In the hours before

Special weather statement, Jul 18, 4:19 PM PDT, 1 hour 31 minutes before

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Local storm report, Jul 18, 4:26 PM PDT, 1 hour 24 minutes before

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Special weather statement, Jul 18, 4:28 PM PDT, 1 hour 22 minutes before

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Local storm report, Jul 18, 5:00 PM PDT, 50 minutes before

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Special weather statement, Jul 18, 5:17 PM PDT, 33 minutes before

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Special weather statement, Jul 18, 5:50 PM PDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 5:17 PM PDT	Special Weather Statement	REV		58 min
Jul 18, 6:19 PM PDT	Special Weather Statement	REV	Lyon	41 min
Jul 18, 6:34 PM PDT	Special Weather Statement	REV	Mineral	56 min
Jul 18, 7:30 PM PDT	Special Weather Statement	REV	Mineral	60 min
Jul 18, 7:40 PM PDT	Special Weather Statement	REV	Washoe	50 min
Jul 19, 3:37 PM PDT	Special Weather Statement	REV		53 min
Jul 19, 3:49 PM PDT	Special Weather Statement	REV		56 min
Jul 19, 4:27 PM PDT	Special Weather Statement	REV		63 min
Jul 19, 4:57 PM PDT	Severe Thunderstorm Warning	REV	Douglas, Lyon, Washoe	31 min
Jul 18, 5:59 PM PDT	Severe Thunderstorm Warning	REV	Lassen, Plumas	61 min
Jul 18, 7:10 PM PDT	Areal Flood Advisory	REV	Lassen, Plumas	3 hr
Jul 19, 2:14 PM PDT	Special Weather Statement	REV	Sierra	46 min
Jul 19, 2:45 PM PDT	Severe Thunderstorm Warning	REV	Plumas, Sierra	45 min
Jul 19, 2:56 PM PDT	Special Weather Statement	REV	Sierra	34 min
Jul 19, 2:59 PM PDT	Special Weather Statement	REV	Plumas	61 min
Jul 19, 3:06 PM PDT	Severe Thunderstorm Warning	REV	Plumas	39 min
Jul 19, 3:49 PM PDT	Flash Flood Warning	REV	Nevada, Sierra	3 hr
Jul 19, 4:13 PM PDT	Special Weather Statement	REV	Alpine	62 min
Jul 19, 4:31 PM PDT	Special Weather Statement	REV	Sierra	59 min
Jul 19, 4:39 PM PDT	Special Weather Statement	REV	Plumas	96 min

Nearby

Special Weather Statements in Nevada, 2014 Every special weather statement in 2014

Sources

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