Severe Thunderstorm Warning 27, NWS Riverton, WY

613 
WWUS55 KRIW 222244
SVSRIW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
444 PM MDT FRI JUL 22 2016

WYC013-222315-
/O.CON.KRIW.SV.W.0027.000000T0000Z-160722T2315Z/
FREMONT-
444 PM MDT FRI JUL 22 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM MDT
FOR SOUTH CENTRAL FREMONT COUNTY...

AT 442 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES SOUTHEAST
OF HUDSON...WHICH IS 11 MILES EAST OF LANDER...MOVING NORTHEAST AT
25 MPH.

HAZARD...70 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE 
         HOMES...ROOFS AND OUTBUILDINGS. 

THIS SEVERE WIND GUSTS WITH THIS STORM WILL BE NEAR...
  HUDSON UNTIL 500 PM MDT.
  ARAPAHOE AT 450 PM UNTIL 515 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4264 10856 4275 10875 4302 10852 4288 10824
TIME...MOT...LOC 2242Z 220DEG 14KT 4281 10851 

HAIL...<.75IN
WIND...70MPH
 
$$

AR

229 
WWUS55 KRIW 222300
SVSRIW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
500 PM MDT FRI JUL 22 2016

WYC013-222309-
/O.CAN.KRIW.SV.W.0027.000000T0000Z-160722T2315Z/
FREMONT-
500 PM MDT FRI JUL 22 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL FREMONT COUNTY
IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED. WIND GUSTS TO 50 MPH MAY
STILL OCCUR WITH THIS STORM IN CENTRAL FREMONT COUNTY. 

LAT...LON 4264 10856 4275 10875 4302 10852 4288 10824
TIME...MOT...LOC 2248Z 221DEG 22KT 4289 10842 

$$

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Area Forecast Discussion
National Weather Service Riverton WY
234 PM MDT FRI JUL 22 2016

.SHORT TERM...Tonight Through Saturday

A red flag warning is in effect until 9 pm mdt for zones 414 415
416 283 285 and 288 for low relative humidity strong wind gusts
with a cold frontal passage and widely scattered thunderstorms
with wind gusts to 50 mph. A rather strong pacific low pressure
trough for mid summer will pass through western and central
wyoming this evening. Ahead of the trough scattered showers with
embedded thunderstorms will move through the area. Strong wind
gusts to 50 mph will be possible with the thunderstorms. A surface
cold front will move through with the upper level trough with a
wind shift to the west northwest with clearing. strong wind gusts
for a few hours behind the cold front should be expected. Cooler
dry air will move in later tonight and Saturday.

.LONG TERM...Saturday night Through Friday

Cooler dry air is expected over the area Saturday night.  Gradual
warming will occur starting Sunday continuing through Monday.
Some showers and thunderstorms...mainly over the mountains will
return late Monday and Monday night. another cold front will come
south on tuesday with cooling through mid week. Another cold front
continues the trend on Thursday with a better chance of showers
and thunderstorms in the north and east. The cold air will be
entrenched up to the continental divide through Friday with
mainly afternoon and evening showers and thunderstorms.

&&

.AVIATION.../00Z ISSUANCE/

VFR conditions will prevail most of the time. A cold front will move
across the state through 06z. A wind shift from southwest to west
and northwest will occur with frontal passage. Isolated showers and
storms will occur through around 06z. Wind gusts to 40 knots will be
common with storms. Mainly VFR conditions will prevail after 06Z
tonight through 00z Sunday except in areas in the vicinity of
wildfires where areas of smoke may reduce visibility.

&&

.FIRE WEATHER...

A red flag warning is in effect until 9 pm mdt for zones 414 415
416 283 285 and 288 for low relative humidity strong wind gusts
with a cold frontal passage and widely scattered thunderstorms
with wind gusts to 50 mph. A rather strong pacific low pressure
trough for mid summer will pass through western and central
wyoming this evening. Ahead of the trough scattered showers with
embedded thunderstorms will move through the area. Strong wind
gusts to 50 mph will be possible with the thunderstorms. A surface
cold front will move through with the upper level trough with a
wind shift to the west northwest with clearing. strong wind gusts
for a few hours behind the cold front should be expected. Cooler
dry air will move in later tonight and Saturday with colder
temperatures through the weekend.

&&

.RIW Watches/Warnings/Advisories...
Red Flag Warning until 9 PM MDT this evening for WYZ283-285-288-
414>416.

&&

SHORT TERM...C.Baker
LONG TERM...C.Baker
AVIATION...Hattings
FIRE WEATHER...C.Baker

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
309 AM MDT FRI JUL 22 2016

WYZ001>020-022>030-230915-
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS-
NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN-
SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS-
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY-
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
UPPER WIND RIVER BASIN-WIND RIVER BASIN-LANDER FOOTHILLS-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-STAR VALLEY-
SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS-
UPPER GREEN RIVER BASIN-SOUTH LINCOLN COUNTY-
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
309 AM MDT FRI JUL 22 2016

...RED FLAG WARNING FOR PORTIONS OF WESTERN AND CENTRAL WYOMING
THIS AFTERNOON AND EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL
WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO WIDELY SCATTERED LATE DAY MOSTLY DRY
THUNDERSTORMS...SOME WITH GUSTS 35 TO 55 MPH. OTHERWISE...ELEVATED
TO EXTREME FIRE DANGER DUE TO BREEZY TO WINDY CONDITIONS...HOT
TEMPERATURES...AND VERY LOW RH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SUNDAY THROUGH WEDNESDAY...CHANCES FOR A FEW ISOLATED
THUNDERSTORMS ACROSS THE FAR SOUTHERN AND EASTERN PORTIONS OF THE
FORECAST AREA.

THURSDAY...INCREASING CHANCES FOR THUNDERSTORMS EAST OF THE
DIVIDE.

.SPOTTER INFORMATION STATEMENT...SPOTTERS ARE ENCOURAGED TO
REPORT WIND SPEEDS OF OVER 40 MPH. THANK YOU.

TEAM RIVERTON

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
213 PM MDT FRI JUL 22 2016

WYZ030-222100-
EAST SWEETWATER COUNTY-
213 PM MDT FRI JUL 22 2016

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SWEETWATER COUNTY UNTIL
300 PM MDT...

AT 212 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 12
MILES SOUTH OF BITTER CREEK WEST AREA...WHICH IS 34 MILES EAST OF
ROCK SPRINGS...MOVING NORTHEAST AT 30 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR...
  TABLE ROCK AROUND 240 PM MDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE PATRICK DRAW NATURAL
GAS PROCESSING PLANT...RED DESERT...BITTER CREEK AND TIPTON.

THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 141 AND 166.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 4119 10884 4157 10887 4178 10817 4145 10799
TIME...MOT...LOC 2012Z 242DEG 26KT 4147 10860

HATTINGS

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
249 PM MDT FRI JUL 22 2016

WYZ002>004-222130-
ABSAROKA MOUNTAINS-CODY FOOTHILLS-NORTH BIG HORN BASIN-
249 PM MDT FRI JUL 22 2016

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL PARK AND
NORTHWESTERN BIG HORN COUNTIES UNTIL 330 PM MDT...

AT 248 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
OVER BUFFALO BILL STATE PARK...WHICH IS NEAR CODY...MOVING NORTHEAST
AT 35 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR...
  CODY AROUND 300 PM MDT.
  RALSTON AROUND 320 PM MDT.
  POWELL AND GARLAND AROUND 330 PM MDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE CODY YELLOWSTONE
REGIONAL AIRPORT...PARK COUNTY FAIRGROUNDS...SUNSET ELEMENTARY
SCHOOL...HEART MOUNTAIN U S BUREAU OF RECLAMATION POWER PLANT...
NORTHWEST COLLEGE...FOSTER GULCH GOLF COURSE...LOVELL BRANCH
LIBRARY...WESTSIDE ELEMENTARY SCHOOL...PARK COUNTY LIBRARY POWELL
BRANCH AND OLIVE GLENN GOLF AND COUNTRY CLUB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 4434 10916 4460 10935 4497 10849 4464 10820
TIME...MOT...LOC 2048Z 240DEG 37KT 4450 10919

HATTINGS

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
348 PM MDT FRI JUL 22 2016

WYZ003>006-230000-
CODY FOOTHILLS-NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN-
SOUTHEAST BIG HORN BASIN-
INCLUDING THE CITIES OF...CODY...MEETEETSE...THERMOPOLIS...
WORLAND
348 PM MDT FRI JUL 22 2016

SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE THROUGH THE REGION
THROUGH 600 PM. MOST OF THE STORMS WILL BE MOVING EAST TO
NORTHEAST ACROSS THE AREA. WIND GUSTS TO 45 MPH WILL BE POSSIBLE
ALONG WITH BRIEF RAINFALL. A FEW STORMS WILL HAVE FREQUENT
LIGHTNING. SEEK SAFE SHELTER WHEN STORMS APPROACH YOUR LOCATION.

WYZ015>019-230000-
WIND RIVER MOUNTAINS EAST-UPPER WIND RIVER BASIN-WIND RIVER BASIN-
LANDER FOOTHILLS-GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITIES OF...DUBOIS...RIVERTON...SHOSHONI...LANDER...
JEFFREY CITY
348 PM MDT FRI JUL 22 2016

SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE THROUGH THE REGION
THROUGH 700 PM. MOST OF THE STORMS WILL BE MOVING EAST TO
NORTHEAST ACROSS THE AREA. WIND GUSTS TO 45 MPH WILL BE POSSIBLE
ALONG WITH BRIEF RAINFALL. A FEW STORMS WILL HAVE FREQUENT
LIGHTNING. SEEK SAFE SHELTER WHEN STORMS APPROACH YOUR LOCATION.

WYZ014-023>026-230000-
WIND RIVER MOUNTAINS WEST-STAR VALLEY-
SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS-
UPPER GREEN RIVER BASIN-
INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH...
THAYNE...PINEDALE...LA BARGE...BIG PINEY...FARSON
348 PM MDT FRI JUL 22 2016

SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE THROUGH THE REGION
THROUGH 600 PM. MOST OF THE STORMS WILL BE MOVING EAST TO
NORTHEAST ACROSS THE AREA. WIND GUSTS TO 45 MPH WILL BE POSSIBLE
ALONG WITH BRIEF RAINFALL. A FEW STORMS WILL HAVE FREQUENT
LIGHTNING. SEEK SAFE SHELTER WHEN STORMS APPROACH YOUR LOCATION.

AR

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
430 PM MDT FRI JUL 22 2016

WYZ017-018-222300-
LANDER FOOTHILLS-WIND RIVER BASIN-
430 PM MDT FRI JUL 22 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL FREMONT COUNTY
UNTIL 500 PM MDT...

AT 428 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES NORTH OF RED CANYON...WHICH IS 7 MILES SOUTHEAST OF LANDER...
MOVING NORTHEAST AT 25 MPH.

HALF INCH HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH
THIS STORM.  WIND GUSTS TO 55 MPH ARE LIKELY IN LANDER AND HUDSON
UNTIL 450 PM.

THIS STRONG THUNDERSTORM WILL BE NEAR...
  HUDSON AROUND 450 PM MDT.

LAT...LON 4268 10850 4270 10852 4269 10852 4267 10853
      4264 10859 4274 10873 4276 10872 4278 10873
      4278 10876 4277 10876 4281 10882 4297 10844
      4282 10822
TIME...MOT...LOC 2228Z 221DEG 23KT 4276 10862

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