Flash Flood Warning 5, NWS Spokane, WA

934 
WGUS76 KOTX 300102
FFSOTX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
602 PM PDT SAT JUN 29 2013

WAC007-300109-
/O.CAN.KOTX.FF.W.0005.000000T0000Z-130630T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHELAN WA-
602 PM PDT SAT JUN 29 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTH CENTRAL 
CHELAN COUNTY WHICH INCLUDES THE CITY OF WENATCHEE...SUNNYSLOPE 
AND CASHMERE.

THE STORM WHICH PRODUCED THE FLASH FLOOD THREAT HAS MOVED OUT OF 
THE AREA. THUS FLOODING IS NO LONGER EXPECTED.

LAT...LON 4753 12056 4750 12031 4743 12031 4738 12027
      4735 12028 4742 12044 4739 12059

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
439 PM PDT Sat Jun 29 2013

.SYNOPSIS...

Scattered showers and thunderstorms will continue into this
evening. Hot and dry weather will return Sunday and continue
through much of this week. Monday and Tuesday will be exceedingly hot
with many locations reaching 100 degrees or more. A weak push of
slightly cooler air will arrive on Wednesday. The Fourth of July
will be seasonably hot and dry.

&&

.DISCUSSION...
Tonight through Monday...Latest models are in decent agreement in
promoting an end to the current round of showers and thunderstorms
overnight tonight...followed by an aggressive strengthening of the
overall ridge aloft Sunday and Monday. Thus the forecast will
reflect a return to the summer heat...back into the 90s on Sunday
and up to near or slightly above the century mark at most
basin/valley locations by Monday afternoon.

First...for this evening an unstable air mass continues to exist
over the region...particularly aloft where continued steep lapse
rates will be available to be exploited by a second weak upper
level wave transiting the region in the southwest flow...best
resolved on the water vapor loop. The first wave came through last
night and triggered the early morning thunderstorms...this second
wave will keep the thunder threat going through this evening but
with the threat of stronger/more widespread storms south of Interstate
90. Cloud cover and frequent precipitation north of I-90 will
likely prevent significant SB CAPE from having been established by early
this evening...and so further precipitation will be mainly
occasional showers with isolated embedded thunderstorms.

The potential for further scattered thunderstorms...some of them
strong...will exist through 10 pm or so over the Palouse and
points southward where less cloud cover today has allowed
temperatures to climb into the mid 80s with dew points in the
upper 50s and 60s. This has created a high SB CAPE environment
waiting for a trigger to break a cap of a hundred joules or so of
CIN. The upper forcing associated with the incoming wave may be
sufficient...or outflow boundaries from the northern complex of
showers may provide a trigger as well. Thus the potential exist
for further strong thunderstorms into the evening over this
region.

The other focus of evening storms will be over the
Cascades...largely spared until now from widespread rain
today...where scattered thunderstorms with locally heavy rain have
developed in the last hour. This area will be subject to Flash
Floods in this moisture rich environment from slow moving or
training storms this evening. A Flash Flood Watch has been
issued.

By late tonight the upper level disturbance will move out of the
region...and the ridge will build back with model soundings
suggesting an overall drying of the column and weak subsidence
developing aloft. This will stabilize the air mass Sunday through
Monday and allow strong solar heating both days with sparse cloud
cover. So...after today it is back into the oven for the forecast
area with no significant weather beyond the heat and unusually
high humidity. /Fugazzi

Monday night through Saturday...Subtle Changes to the ridge axis
starting slightly earlier could make Tuesday's high temperatures
equal to Mondays which is slightly different than earlier
forecasts which have had Tuesday stand out as the hottest day for
most locations...regardless it will still be a hot day Tuesday with
most lowland locations reaching daytime highs in the triple
digits. A moderate strength front runs over the top of this ridge
Tuesday and primarily allows for a cooling trend to begin on
either Tuesday and/or Wednesday but may also kick off isolated
thunderstorms with its passage. In addition to further cooling
for Wednesday one thing in particular to look out for is a compact
small mesoscale shortwave running up under the ridge via a path
through Eastern Oregon and up into Southeast Washington and then
North Idaho which could very well fire up thunderstorms as it
passes. Thursday weather is cluttered as not only does the ridge
continue to deflate but a vigorous cold front takes a significant
amount of energy out of it with most models not depicting much
precipitation with its passage which means it is highly likely to
be a gusty wind maker when it goes through. At same time yet
another mesoscale shortwave undercuts the ridge ahead of the
vigorous wind producing cold front which may yet again bring
thunderstorms to extreme Southeast Washington and Southern
Portions of the North Idaho Panhandle. What is left for Friday and
Saturday is a flat ridge/zonal flow which allows the cooling trend
to continue along with a bit more clouds and gusty winds at times
depending upon strength of minor disturbances passing through this
flow but little in the way of significant if any precipitation.
/Pelatti

&&

.AVIATION...
00Z TAFS...Majority of showers and thunderstorms on the decrease
this evening, the exception being those stronger ones near KEAT
and vicinity west of a line from Moses Lake to Omak which look
to linger longer into the evening until 03Z or so and produce
heavy rain and associated MVFR ceilings rather than decreased
visibility as they are rather high based. Otherwise trend for
tonight is decreasing clouds and drying allowing for VFR
conditions to prevail with perhaps some very spotty late night and
early morning valley fog and stratus from perhaps the usual 10Z-17Z
time interval. /Pelatti

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        65  91  68 100  71 100 /  20   0   0   0  10  10
Coeur d'Alene  63  90  64  99  68  98 /  30   0   0   0  10  10
Pullman        61  90  64  99  67  98 /  40   0   0   0  10  10
Lewiston       68  98  69 105  73 105 /  30   0   0  10  10  10
Colville       59  95  62 103  66 102 /  30  10   0  10  10  10
Sandpoint      58  89  59  97  62  97 /  30  10   0   0  10  10
Kellogg        62  89  64  97  66  97 /  40  10   0   0  10  10
Moses Lake     64  96  68 103  71 103 /  10   0  10  10  10  10
Wenatchee      68  95  72 101  73 101 /  40   0  10  10  10  10
Omak           63  96  66 102  69 102 /  40   0  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Heat Advisory from Noon Monday to 10 PM PDT Tuesday for Central
     Panhandle Mountains-Coeur d'Alene Area-Idaho Palouse-Lewis
     and Southern Nez Perce Counties-Lewiston Area-Northern
     Panhandle.

WA...Heat Advisory from Noon Monday to 10 PM PDT Tuesday for East
     Slopes Northern Cascades-Lower Garfield and Asotin Counties-
     Moses Lake Area-Northeast Mountains-Okanogan Highlands-
     Okanogan Valley-Spokane Area-Upper Columbia Basin-
     Washington Palouse-Waterville Plateau-Wenatchee Area.

     Flash Flood Watch until 8 PM PDT this evening for East Slopes
     Northern Cascades-Wenatchee Area.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
446 AM PDT SAT JUN 29 2013

IDZ004-026-027-WAZ031-032-301200-
CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA-
LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS-
LOWER GARFIELD AND ASOTIN COUNTIES-
446 AM PDT SAT JUN 29 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO...
NORTH CENTRAL IDAHO AND SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP TODAY. A FEW
STORMS THIS AFTERNOON MAY BECOME STRONG TO SEVERE WITH HEAVY
RAIN...LARGE HAIL...AND DAMAGING WIND GUSTS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

VERY HOT TEMPERATURES ARE EXPECTED MONDAY AND TUESDAY WITH HIGH
TEMPERATURES FOR MOST VALLEY LOCATIONS BETWEEN 98 AND 105. THE
HOTTEST TEMPERATURES WILL OCCUR ALONG THE SNAKE RIVER. GRADUAL
COOLING IS EXPECTED WEDNESDAY THROUGH FRIDAY.

IDZ001>003-WAZ033>038-041-043-044-301200-
NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE-
WASHINGTON PALOUSE-MOSES LAKE AREA-UPPER COLUMBIA BASIN-
SPOKANE AREA-NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-
WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU-
446 AM PDT SAT JUN 29 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO...
CENTRAL WASHINGTON...EAST CENTRAL WASHINGTON...NORTH CENTRAL
WASHINGTON...NORTHEAST WASHINGTON AND SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED FOR TODAY. SOME
STORMS WILL PRODUCE GUSTY WINDS...HEAVY RAIN...AND FREQUENT
LIGHTNING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

VERY HOT TEMPERATURES ARE EXPECTED MONDAY AND TUESDAY WITH HIGH
TEMPERATURES FOR MOST VALLEY LOCATIONS BETWEEN 98 AND 105. THE
HOTTEST TEMPERATURES WILL OCCUR IN THE MOSES LAKE AREA. GRADUAL
COOLING IS EXPECTED WEDNESDAY THROUGH FRIDAY.

WAZ042-301200-
EAST SLOPES NORTHERN CASCADES-
446 AM PDT SAT JUN 29 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE EXPECTED TO DEVELOP TODAY. STORMS THIS AFTERNOON
WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL RATES...INCREASING THE
THREAT FOR FLASH FLOODING OVER RECENT BURN SCARS ALONG THE EAST
SLOPES OF THE NORTHERN CASCADES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

VERY HOT TEMPERATURES ARE EXPECTED MONDAY AND TUESDAY WITH HIGH
TEMPERATURES FOR MOST VALLEY LOCATIONS BETWEEN 96 AND 103. GRADUAL
COOLING IS EXPECTED WEDNESDAY THROUGH FRIDAY.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
230 PM PDT SAT JUN 29 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0228 PM     FLASH FLOOD      1 NNE WENATCHEE         47.44N 120.32W
06/29/2013                   CHELAN             WA   DEPT OF HIGHWAYS

            MUDFLOW ON THE US 2/97 JCT. SR 28

&&

JCLEV

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
252 PM PDT SAT JUN 29 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0151 PM     FLASH FLOOD      2 ESE WENATCHEE         47.42N 120.29W
06/29/2013                   DOUGLAS            WA   TRAINED SPOTTER

            REPORTS OF MANHOLE COVERS BEING BLOWN OFF FROM WATER AND
            MUD DEBRIS IN STREETS

&&

JCLEV

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
300 PM PDT SAT JUN 29 2013

WAZ038-292245-
FERRY WA-OKANOGAN WA-
300 PM PDT SAT JUN 29 2013

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHEASTERN OKANOGAN COUNTY IN NORTH CENTRAL WASHINGTON
  NORTHWESTERN FERRY COUNTY IN NORTHEAST WASHINGTON

UNTIL 345 PM PDT

AT 258 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 20 MILES NORTHWEST OF REPUBLIC..MOVING NORTHEAST
AT 20 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

LOCATIONS IMPACTED INCLUDE...
   TORODA...
   FERRY...

LAT...LON 4901 11867 4900 11859 4882 11901 4886 11907
      4901 11895 4901 11879 4900 11878 4901 11868
TIME...MOT...LOC 2200Z 223DEG 16KT 4888 11899

SB

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SPOKANE WA
313 PM PDT SAT JUN 29 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0151 PM     FLASH FLOOD      1 WNW WENATCHEE         47.43N 120.34W
06/29/2013                   CHELAN             WA   LAW ENFORCEMENT

            REPORTS OF MANHOLE COVERS BEING BLOWN OFF FROM WATER IN
            THE MILLERDALE AVE TO SPRINGWATER AVE ALONG MILLER ST

&&

JCLEV

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
356 PM PDT SAT JUN 29 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 PM     FLASH FLOOD      1 WSW WENATCHEE         47.42N 120.35W
06/29/2013                   CHELAN             WA   TRAINED SPOTTER

            1 TO 2 INCES OF WATER FLOWING DOWN THE STREETS CURB TO
            CURB ON ROADS LEADING OUT OF NUMBER 1 CANYON AND NUMBER 2
            CANYON. ROADS ARE NOW CLEAR AS OF 3 PM.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
401 PM PDT SAT JUN 29 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 PM     FLASH FLOOD      1 WSW WENATCHEE         47.42N 120.34W
06/29/2013                   CHELAN             WA   PUBLIC

            COCORAHS WA-CH-13 REPORTED 1.03 INCHES OF RAIN. STREETS
            BEGAN FLOODING AROUND 125 PM HALTING TRAFFIC AT
            INTERSECTIONS. LOWER LEVEL OF OUTBUILDING FLOODED.

&&