Severe Thunderstorm Warning 61, NWS Salt Lake City, UT

432 
WWUS55 KSLC 180107
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
707 PM MDT FRI JUL 17 2015

WYC041-180215-
/O.CON.KSLC.SV.W.0061.000000T0000Z-150718T0215Z/
UINTA WY-
707 PM MDT FRI JUL 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM MDT
FOR EASTERN UINTA COUNTY...

AT 706 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED NEAR ROBERTSON...OR 23 MILES EAST OF
EVANSTON...MOVING NORTHEAST AT 45 MPH.

THIS SEVERE STORM WILL BE NEAR...
  ROBERTSON AROUND 715 PM MDT.
  LYMAN AROUND 730 PM MDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
MILLBURNE...FORT BRIDGER AND PIEDMONT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4104 11058 4104 11070 4117 11079 4155 11024
      4130 11005 4116 11005
TIME...MOT...LOC 0106Z 239DEG 42KT 4117 11054 

$$

ROGOWSKI

696 
WWUS55 KSLC 180121
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
721 PM MDT FRI JUL 17 2015

WYC041-180215-
/O.CON.KSLC.SV.W.0061.000000T0000Z-150718T0215Z/
UINTA WY-
721 PM MDT FRI JUL 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM MDT
FOR EASTERN UINTA COUNTY...

AT 721 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED NEAR ROBERTSON...OR 28 MILES EAST OF
EVANSTON...MOVING NORTHEAST AT 40 MPH.

THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
EASTERN UINTA COUNTY...INCLUDING THE FOLLOWING LOCATIONS...MILLBURNE
AND FORT BRIDGER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4132 11057 4155 11024 4130 11005 4116 11005
      4112 11047
TIME...MOT...LOC 0121Z 238DEG 35KT 4123 11041 

$$

ROGOWSKI

618 
WWUS55 KSLC 180136
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
736 PM MDT FRI JUL 17 2015

WYC041-180146-
/O.CAN.KSLC.SV.W.0061.000000T0000Z-150718T0215Z/
UINTA WY-
736 PM MDT FRI JUL 17 2015

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN UINTA COUNTY IS
CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4132 11057 4155 11024 4130 11005 4116 11005
      4112 11047
TIME...MOT...LOC 0134Z 236DEG 23KT 4128 11030 

$$

ROGOWSKI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
404 PM MDT FRI JUL 17 2015

.SYNOPSIS..AN UPPER LEVEL TROUGH CONTINUE SOUTH INTO THE
INTERMOUNTAIN REGION TONIGHT...THEN IMPACT THE REGION THROUGH THE
FIRST HALF OF THE WEEKEND. MOISTURE WILL SURGE NORTH AHEAD OF THIS
TROUGH AND CONCENTRATE OVER SOUTHERN AND EASTERN UTAH THIS
WEEKEND.

&&

.SHORT TERM (THROUGH 06Z TUESDAY)...SCATTERED SHOWERS AND
THUNDERSTORMS ARE CONTINUING ACROSS NORTHERN UTAH AND SOUTHWEST
WYOMING THIS AFTERNOON...AS A TROUGH CONTINUES TO PUSH INTO THE
AREA FROM THE NORTH. IN THE SOUTHERN HALF OF UTAH...CONDITIONS ARE
CONSIDERABLY DRIER...WITH GUSTY SOUTHWESTERLY WINDS OUT AHEAD OF
THE TROUGH.

THE TROUGH WILL CONTINUE TO DIG INTO THE GREAT BASIN
OVERNIGHT...THEN SWING ACROSS FAR NORTHERN UTAH THROUGH
SATURDAY...PRODUCING A COOL AND WET START TO THE WEEKEND. FURTHER
SOUTH...TROPICAL MOISTURE ASSOCIATED WITH TROPICAL STORM DOLORES
IS EXPECTED TO STREAM THROUGH ARIZONA TONIGHT AND TOMORROW...WITH
THE DEEPER MOISTURE POTENTIALLY PUSHING INTO UTAH LATE SATURDAY.
WITH SOME UNCERTAINTY ABOUT HOW QUICKLY THIS MOISTURE WILL MOVE
NORTHWARD...AS WELL AS MOST MODEL GUIDANCE STOPPING THE BEST
PRECIPITATION RIGHT NEAR THE UTAH/ARIZONA BORDER...HAVE NOT ISSUED
A FLASH FLOOD WATCH ON THIS SHIFT. HOWEVER...THERE IS STILL A
MODERATE FLASH FLOOD RISK ACROSS THE SOUTH LATE SATURDAY...AND
SUNDAY AS WELL WITH LINGERING MOISTURE ACROSS A LARGER AREA.

MONDAY LOOKS TO BE A DAY BETWEEN STORM SYSTEMS...AS THE NORTHERN
TROUGH LEAVES THE REGION TO THE EAST...AND THE REMNANTS OF
TROPICAL STORM DOLORES BEGIN TO MOVE INTO SOUTHERN CALIFORNIA.
WHILE THE EXACT TRACK OF THE REMNANT LOW PRESSURE SYSTEM IS LOW
CONFIDENCE...HAVE GENERALLY INCREASED POPS FROM THE SOUTHWEST
THROUGH THE DAY...AS ADDITIONAL TROPICAL MOISTURE LOOKS TO PUSH
INTO THE AREA OUT AHEAD OF THE STORM.

.LONG TERM (AFTER 06Z TUESDAY)...THE EC AND GFS CONTINUE TO DISAGREE
ON THE TRACK TO BE TAKEN BY THE REMNANTS OF DOLORES. BY 12Z TUESDAY
THE EC PLACES IT OVER NORTHERN NEVADA...THE GFS OVER SOUTHERN
NEVADA...AND THE CANADIAN SOMEWHERE IN BETWEEN. THE GFS HAS BEEN
TRENDING TOWARD THE EC SOLUTION AND THE FORECAST WILL LEAN TOWARDS
THE EC. CONFIDENCE IN INCREASED ACTIVITY ON TUESDAY IS HIGH BUT
CONFIDENCE IN EXACT LOCATION IS LOW-MODERATE.

TUESDAY...CLOUD COVER AND POPS WILL INCREASE FROM SOUTHWEST TO
NORTHEAST AS THE REMNANTS OF DOLORES PASS EASTWARD OVER UTAH. THE
BEST CHANCES FOR PRECIPITATION WILL BE OVER THE HIGHER TERRAIN AND
LOCALIZED HEAVY PRECIPITATION SEEMS POSSIBLE GIVEN THE TROPICAL
ORIGIN. QUIESCENT WEATHER SHOULD REIGN BRIEFLY TUESDAY NIGHT INTO
WEDNESDAY MORNING.

WEDNESDAY THROUGH FRIDAY...GLOBAL MODELS ARE IN GOOD AGREEMENT THAT
A 500MB TROUGH WILL DEEPEN ALONG THE WEST COAST FROM WEDNESDAY INTO
THURSDAY. RIGHT NOW...THE NORTHWESTERN QUARTER OF THE CWA SEEMS MOST
LIKELY TO BE UNDER THE INFLUENCE OF SEVERAL WEAK VORTICITY MAXIMA
THAT WILL ROTATE THROUGH THE TROUGH. THIS IS LIKELY TO LEAD TO A FEW
ROUNDS OF AT LEAST LIGHT PRECIPITATION BUT PINNING DOWN TIMING OR
LOCATION IS DIFFICULT AT THIS TIME. CONDITIONS WILL LIKELY BE DRIER
FURTHER SOUTHEAST. AREAS WEST OF THE MOUNTAINS SHOULD SEE FAIRLY
STRONG SOUTHERLY WINDS ON WEDNESDAY AND THURSDAY WITH THE TROUGH
CREATING A STRONG PRESSURE GRADIENT ACROSS THE AREA. ON
FRIDAY...MODELS DIFFER ON HOW QUICKLY THE TROUGH WILL FILL AND LIFT
TO OUR NORTH. A COMPROMISE SUGGESTS LOW POPS ACROSS THE FAR NORTH
AND FAIRLY RAPID CLEARING FURTHER SOUTH.

&&

.AVIATION...VFR CONDITIONS ARE EXPECTED THROUGH THE EVENING AT THE
SLC TERMINAL. WINDS SHOULD BE PREDOMINATELY NORTHERLY...BUT IT IS
LIKELY THAT SHOWERS DEVELOPING AROUND THE TERMINAL WILL CAUSE
PERIODS OF GUSTY AND/OR ERRATIC WINDS THROUGH THE EVENING. THERE IS
A 30 PERCENT CHANCE OF BRIEF PERIODS OF CIGS AT OR BELOW 6000 FT AGL
WITH SHOWERS/STORMS MOVING OVER THE TERMINAL.

&&

.FIRE WEATHER...SOME LOCATIONS ACROSS SOUTHERN UTAH ARE REACHING
CRITICAL WIND AND RELATIVE HUMIDITY LEVELS THIS AFTERNOON...BUT
WINDS SHOULD GENERALLY DECREASE THROUGH THE EVENING HOURS.
MOISTURE WILL BEGIN TO INCREASE ON SATURDAY...WITH SHOWERS AND
THUNDERSTORMS POSSIBLE ACROSS MOST OF UTAH. WITH DEEP TROPICAL
MOISTURE MOVING INTO THE STATE FROM THE SOUTH...THE CHANCE OF
WETTING RAIN WILL INCREASE THROUGH THE WEEKEND.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...NONE.
WY...NONE.
&&

SCHOENING/RUTZ/CHENG/TRAPHAGAN

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)

FOR FREQUENTLY ASKED QUESTIONS ABOUT THE AREA FORECAST DISCUSSION
VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY/GENERAL/AFD_FAQS.PHP (ALL LOWER CASE)

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
615 AM MDT FRI JUL 17 2015

UTZ001>016-019>021-517-518-WYZ021-181200-
CACHE VALLEY/UTAH PORTION-NORTHERN WASATCH FRONT-
SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT-
GREAT SALT LAKE DESERT AND MOUNTAINS-WASATCH MOUNTAIN VALLEYS-
WASATCH MOUNTAINS I-80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80-
WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS-
WESTERN UINTA BASIN-CASTLE COUNTRY-SAN RAFAEL SWELL-
SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH-
UTAHS DIXIE AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-CENTRAL MOUNTAINS-
SOUTHERN MOUNTAINS-SOUTHWEST WYOMING-
615 AM MDT FRI JUL 17 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF
UTAH AND SOUTHWEST WYOMING.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS WILL EXIST ACROSS
NORTHERN UTAH AND SOUTHWEST WYOMING THROUGH THIS EVENING. THE
SHOWERS AND STORMS WILL INCREASE IN AREAL COVERAGE LATE TONIGHT.

ACROSS SOUTHERN AND CENTRAL UTAH GENERALLY DRY CONDITIONS WILL
EXIST TODAY. MOISTURE WORKING NORTH OUT OF ARIZONA COULD BRING A
FEW SHOWERS OR EVEN A THUNDERSTORM TO EXTREME SOUTHERN UTAH LATE
TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

AN UPPER LEVEL TROUGH OVER THE NORTHERN INTERMOUNTAIN REGION WILL
MAINTAIN SHOWERS AND THUNDERSTORMS ACROSS THE NORTHERN THIRD OF
THE OUTLOOK AREA SATURDAY. COOLER TEMPERATURES WILL ACCOMPANY THE
PRECIPITATION...WITH READINGS RUNNING AROUND 5 TO 15 DEGREES
BELOW MID-JULY NORMALS. SOMEWHAT DRIER AIR WILL SETTLE INTO THE
NORTHERN PORTION OF THE OUTLOOK AREA FOR LATE IN THE WEEKEND.

SHOWERS AND THUNDERSTORMS WILL BECOME MORE COMMON ACROSS SOUTHERN
AND CENTRAL UTAH THIS WEEKEND AS MOISTURE SPREADS NORTH OUT OF
ARIZONA. STRONG THUNDERSTORMS WILL BE POSSIBLE ACROSS CENTRAL UTAH
ALONG A STALLED FRONT. ISOLATED HEAVY RAINFALL IS POSSIBLE ON
SATURDAY AFTERNOON AND EVENING...WITH THE POSSIBILITY OF FLASH
FLOODING IN THE FLOOD PRONE AREAS OF SOUTHERN UTAH. THE THREAT FOR
HEAVY RAINFALL AND THE ASSOCIATED FLASH FLOODING WILL INCREASE
ACROSS THE SOUTHERN HALF OF THE STATE SUNDAY.

LINGERING MOISTURE WILL SERVE TO MAINTAIN SHOWERS AND THUNDERSTORMS
ACROSS MUCH OF SOUTHERN AND EASTERN UTAH EARLY IN THE WEEK. THE
REMNANT OF AN OLD EASTERN PACIFIC HURRICANE WILL TURN NORTHEAST IN
CALIFORNIA MONDAY...THEN THROUGH THE WESTERN GREAT BASIN TUESDAY.
THIS OLD TROPICAL SYSTEM COULD BRING A RENEWED THREAT FOR HEAVY
RAINFALL TO MAINLY THE NORTHERN AND WESTERN PORTION OF THE OUTLOOK
AREA MIDWEEK.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY/ (ALL LOWER CASE)

FOR INFORMATION ON POTENTIAL ROAD TRAVEL IMPACTS VISIT...
HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
428 PM MDT FRI JUL 17 2015

WYZ021-172330-
SOUTHWEST WYOMING WY-
428 PM MDT FRI JUL 17 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN UINTA COUNTY UNTIL
530 PM MDT...

AT 426 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 11 MILES
NORTHWEST OF ROBERTSON TO NEAR LYMAN TO 6 MILES NORTH OF LONETREE...
MOVING NORTHEAST AT 30 MPH.

WINDS OF 40 TO 55 MPH WILL BE POSSIBLE AS WELL AS COPIOUS LIGHTNING
AND A BRIEF HEAVY RAIN.

LOCATIONS IMPACTED INCLUDE...

INTERSTATE 80 EAST OF FIRST DIVIDE...LYMAN...BLACKS FORK NATURAL GAS
PROCESSING PLANT...CARTER...FORT BRIDGER...CHURCH
BUTTES...RAGEN...LEROY AND MILLBURNE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF THREATENING WEATHER APPROACHES...TAKE SHELTER IN A STURDY
BUILDING. THOSE TRAVELING ON INTERSTATE 80 SHOULD BE PREPARED FOR
STRONG CROSSWINDS.

&&

LAT...LON 4106 11006 4126 11038 4124 11071 4158 11049
      4158 11004 4108 11005
TIME...MOT...LOC 2226Z 211DEG 27KT 4128 11059 4130 11036 4115 11011

ROGOWSKI