A line of thunderstorms produced damaging wind as they marched north across central Fremont County from Lander to north of Riverton. The wind destroyed a pole barn and uprooted two trees at a Missouri Valley ranch.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS RIW wrote it up.
A line of thunderstorms produced damaging wind as they marched north across central Fremont County from Lander to north of Riverton. The wind destroyed a pole barn and uprooted two trees at a Missouri Valley ranch.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before the first event at Sep 7, 1:54 PM MST, 3 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 254 PM MDT SAT SEP 7 2013 .SHORT TERM...TONIGHT THROUGH SUNDAY SW THAT WAS PREVIOUSLY LOCATED IN NRN MEX A COUPLE OF DAYS AGO HAS BECOME SOMEWHAT REINVIGORATED AND IS NOW SCRAPING OUR WRN FA WITH SHOWERS AND A FEW ISOLATED THUNDERSTORMS ONGOING THIS MORNING. THIS SW IS RATHER ELONGATED...AND AS THE DAY PROGRESSES...IT WILL MOVE CLOSE TO THE ENTRANCE REGION OF THE UPR JET ROUNDING OUR WRN CONUS TROF THAT IS VERY SLOWLY PUSHING INTO THE NW CONUS. STRONG PVA ASSOCIATED WITH THIS NWRN CONUS UPR TROF AND JET SHOULD WILL HELP TO INCREASE THE STRENGTH OF THIS SW. THE BEST CONVECTIVE COVERAGE ACROSS THE CWA SHOULD HAPPEN TODAY WITH MORE PLACES GETTING SOMETHING MEASURABLE ON THE GROUND. GENERALLY...IT WILL BE CLOUDY AND COOL WEST FOR MOST OF THE DAY WITH MORE SHOWERY TYPE CONDITIONS AND THUNDER SECOND. AS WE MOVE EASTWARD HOWEVER...THE ORIENTATION OF THE LEE-SIDE LOW IN NERN CO AND SERN WY WILL ALLOW FOR A BETTER SOUTHEAST TO NE FEED INTO THE N AND NE FA...WITH BOTH INCREASED LL MOISTURE AND LOW WINDS FAVORABLE FOR INCREASING DEEP SHEAR VALUES...AND CREATING A BOUNDARY...ESPECIALLY OVER THE BIG HORN MOUNTAINS AND IN JOHNSON COUNTY...AND TO A LESSER EXTENT INTO NRN NATRONA. THIS WILL BE THE AREA OF MOST CONCERN...WITH CHANCES FOR HEAVY RAIN...THE POSSIBILITY OF LOTS OF SMALL HAIL...WITH SOME STORMS BECOMING STRONG TO MARGINALLY SEVERE...WITH THE OBLIGATORY STRONG WIND CHANCE...THIS TIME ASSOCIATED WITH WET MICROBURSTS RATHER THAN THE USUALLY DRY. SHOWERS AND THUNDERSTORM ACTIVITY WILL WANDER WELL IN THE EVENING PERIOD...AND PERHAPS MOST OF THE OVERNIGHT PERIOD. SUNDAY...WILL START OUT WITH SHOWERS AND ISOLATED THUNDER AROUND. IT WILL ALSO BE QUITE SIMILAR TO SATURDAY'S SET-UP. HOWEVER...WHILE THERE WILL BE SHOWERS AND ISOLATED THUNDER ACROSS THE WRN ZONES BY EARLY AFTERNOON...THERE WILL BE A SLIGHT SHIFT EAST AS UPR TROF FINALLY BEGINS TO MOVE EAST ACROSS MT AND SRN CANADA...AND EVENTUALLY INTO THE DAKOTAS BY MONDAY...SCRAPING OUR NRN BORDER AREA AS IT DOES. ADDITIONALLY...THE SFC LOW/TROF THAT HAS BEEN SET UP OVER NERN CO AND SERN WY...WILL BEGIN TO BUMP EWD WITH HIGH PRESSURE JUST BEGINNING TO BUILD INTO THE NW TERRITORY BY LATE IN THE DAY. THERE WILL BE PRECIP CHCS ACROSS THE ENTIRE CWA BY AFTERNOON...WITH LOWEST CHANCES OVER THE BASINS...BECOMING MORE SRN AND ERN CWA ORIENTED LATE IN THE AFTERNOON AND EVENING...WITH SOME WRAP AROUND BACK INTO THE NWRN FA IN THE EVENING. COOLING H5 TEMPS AND DECENT DYNAMICS WILL KEEP CHANCES FOR SMALL HAIL IN BOTH THE WRN CWA EARLY...ERN CWA BY LATE AFTERNOON INTO THE EVENING. THE NERN CWA WILL ALSO BE PRIVY TO THE STRONGEST STORMS OF THE DAY...CLOSE TO THE SAME AREA AS ON SATURDAY. .LONG TERM...SUNDAY NIGHT THROUGH SATURDAY MODELS IN FAIRLY GOOD AGREEMENT THROUGH WEDNESDAY NIGHT WITH CONSISTENT SOLUTIONS BEING OFFERED. UPPER LOW OVER THE PACIFIC NORTHWEST WILL BEGIN TO KICK EAST ALONG THE US/CANADA BORDER SUNDAY EVENING. COOLER...DRIER AIR WILL PUSH ACROSS THE FORECAST AREA BETWEEN 00Z-06Z/MON WITH SOME FAVORED LOCATIONS SEEING GUSTY NORTHWEST WIND. BEST CHANCE OF SHOWERS AND STORMS SUNDAY EVENING WILL BE AHEAD OF THE COLD FRONT ROUGHLY ALONG AND EAST OF A KRKS-KBYG LINE. RAIN CHANCES WILL WANE AS THE NIGHT WEARS ON AND DRIER AIR PUSHES THROUGH THE FORECAST AREA. MID-LEVEL COLD POOL SHOULD GENERATE SOME FAIR WEATHER CUMULUS ACROSS THE FAR NORTH ON MONDAY AND POSSIBLY GENERATE A WEAK SHOWER OVER THE BIGHORNS. OTHERWISE...GENERALLY DRY CONDITIONS ANTICIPATED ON MONDAY AND TUESDAY ALONG WITH MORE SEASONAL TEMPERATURES. ENOUGH MID-LEVEL MOISTURE LINGERS ACROSS THE SOUTH ON TUESDAY TO KEEP MORE CLOUD COVER ACROSS SWEETWATER COUNTY. HAVE ADJUSTED ACCORDINGLY AND LEFT LOW RAIN CHANCES IN THE FORECAST IN THAT REGION. HIGH PRESSURE OVER THE NORTHERN PLAINS WILL KEEP A LOW-LEVEL EASTERLY FLOW ACROSS THE REGION WEDNESDAY. SOUTHERLY MID-LEVEL FLOW TRANSPORTS MOISTURE INTO THE SOUTHWEST QUARTER OF THE STATE WEDNESDAY INCREASING THE CHANCE OF SHOWERS/STORMS. MOST OF THE REMAINDER OF THE REGION SHOULD REMAIN DRY. WEAK UPPER LOW WHICH WILL SPIN OVER THE SOUTHERN GREAT BASIN TO BEGIN THE WEEK WILL GRADUALLY BEGIN TO LIFT NORTH AND NORTHEAST ON THURSDAY. GFS AND ECMWF SLIGHTLY DIVERGENT THURSDAY WITH THE GFS A LITTLE FASTER IN LIFTING THIS LOW ALONG OUR WESTERN BORDER. EITHER WAY...THURSDAY/THURSDAY EVENING LOOK TO BE THE BEST BET FOR SHOWERS AND STORMS THIS UPCOMING WEEK. JET STREAK IN A FAVORABLE POSITION TO AID CONVECTION ON THURSDAY. MODELS CONTINUE TO OFFER DIFFERING SOLUTIONS TO END THE WEEK WITH THE GFS MORE AGGRESSIVE AND FARTHER SOUTH WITH UPSTREAM KICKER SYSTEM. GFS CONSISTENCY AT THIS FORECAST RANGE HAS BEEN BELOW AVERAGE...SO WILL TREND CLOSER TO THE ECMWF SOLUTION. GENERALLY WESTERLY ZONAL FLOW IN THE WAKE OF THE WEAK UPPER LOW. HAVE BUILT FORECAST TO MORE CLOSELY RESEMBLE CLIMATOLOGICAL PRECIP CHANCES FRIDAY AND SATURDAY WITH GRADUALLY WARMING TEMPERATURES. 700MB TEMPERATURES HINT AT MAX TEMPERATURES CLIMBING TO ABOVE NORMAL READINGS BY THE END OF THE WEEK. && .AVIATION.../00Z ISSUANCE/ VFR CONDITIONS WILL PREVAIL THROUGH 00Z SUNDAY. SCATTERED SHOWERS AND THUNDERSTORMS WILL OCCUR TONIGHT THROUGH AT LEAST 03Z FOR MOST TERMINALS...LATER NEAR THE EASTERN TERMINALS. SHOWERS AND ISOLATED STORMS WILL LINGER OVERNIGHT FOR TERMINALS NEAR MOUNTAIN AREAS...ESPECIALLY THE BIG HORN MOUNTAINS. SOME STORMS WILL PRODUCE MVFR CONDITIONS DUE TO LOWER VISIBILITY IN HEAVY RAIN. ADDITIONALLY...SMALL HAIL AND WIND GUSTS TO 45 KNOTS MAY OCCUR WITH SOME STORMS...ESPECIALLY EAST OF A ROCK SPRINGS TO BUFFALO LINE. OVERNIGHT...KJAC AND KRKS MAY HAVE REDUCED VISIBILITY DUE TO BR AND LOW CEILINGS BETWEEN 10 AND 15Z. TOMORROW WILL BEHAVE MUCH AS TODAY...WITH AN EMPHASIS ON CONVECTION GRADUALLY SHIFTING TO THE EAST DURING THE DAY. && .FIRE WEATHER... HIGH TEMPERATURES COOLER TODAY ACROSS THE ENTIRE FORECAST AREA BY A DEGREE OR TWO...WITH MINIMUM RH VALUES RISING FROM AS LITTLE AS 5 PERCENT IN THE SOUTHEASTERN ZONES TO AS MUCH AS 20 PERCENT IN THE NORTHWEST. MOISTURE WILL INCREASE ACROSS THE STATE FROM WEST TO EAST AS ANOTHER BIT OF UPPER LEVEL SUB-TROPICAL MOISTURE STREAMS THROUGH FROM THE SOUTHWEST...SLOWLY PROPAGATING FROM WEST TO EAST. PRECIPITATION CHANCES WILL ALSO INCREASE THROUGHOUT THE DAY....ESPECIALLY OVER THE HIGHER TERRAIN WEST OF THE DIVIDE FIRST ...FOLLOWED JUST A LITTLE LATER OVER OUR EASTERN ZONES. WHILE STORMS SHOULD BE MOVING ALONG AT A DECENT CLIP TODAY...THERE WILL BE SOME POTENTIAL FOR LOCALIZED FLASH FLOODING...PARTICULARLY ABOVE 7500 FT IN THE BIG HORN MOUNTAINS. WINDS WILL PICK UP AND GUST TO 30 MPH FROM BETWEEN ZONE 279 IN THE SOUTH...TO THE NORTHEAST INTO ZONE 281 LATER THIS AFTERNOON AND EVENING. HIGHER OVERALL RH LEVELS ACROSS THE ENTIRE REGION WILL NULLIFY THE INCREASED WINDS RELATIVE TO FIRE WEATHER. SUNDAY...BOTH WINDS AND MINIMUM RH VALUES WILL REMAIN WELL ABOVE CRITICAL LEVELS...WITH CONTINUED GOOD CHANCES FOR SCATTERED SHOWERS AND THUNDER ACROSS MOST ZONES. && .RIW WATCHES/WARNINGS/ADVISORIES... NONE. && SHORT TERM...BRAUN LONG TERM...CNJ AVIATION...BRAUN FIRE WEATHER...BRAUN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 400 AM MDT SAT SEP 7 2013 WYZ001>020-022>030-081200- ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST- BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS- EAST SWEETWATER COUNTY-FLAMING GORGE- GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS- NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN- NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS- ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES- SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN- SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY- TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN- UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN- WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST- YELLOWSTONE NATIONAL PARK- 400 AM MDT SAT SEP 7 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS...SOME WITH SMALL HAIL AND GUSTY WINDS OF 45 MPH. A FEW STRONGER STORMS COULD OCCUR ACROSS JOHNSON COUNTY. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SUNDAY...SCATTERED MAINLY LATE DAY THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT...HAIL OF ANY SIZE...WINDS ABOVE 40 MPH...OR ANY OTHER SIGNIFICANT WEATHER. THANK YOU. TEAM RIVERTON
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 301 PM MDT SAT SEP 7 2013 WYZ009-011-072200- BIGHORN MOUNTAINS SOUTHEAST WY-SOUTHEAST JOHNSON COUNTY WY- 301 PM MDT SAT SEP 7 2013 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN JOHNSON COUNTY UNTIL 400 PM MDT... AT 300 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8 MILES NORTH OF HOLE IN THE WALL...OR 11 MILES WEST OF KAYCEE...MOVING NORTHEAST AT 10 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. THIS STORM WILL BE NEAR... STATE HWY 190 MILE MARKER 100...KAYCEE...I25 MILE MARKER 260...STATE HWY 191 MILE MARKER 10 AND STATE HWY 196 MILE MARKER 260 AROUND 400 PM MDT. THIS INCLUDES INTERSTATE 25 IN WYOMING BETWEEN MILE MARKERS 249 AND 276. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. BRIEF HEAVY RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. REPORT HAZARDOUS WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4401 10670 4364 10629 4353 10685 4366 10702 TIME...MOT...LOC 2101Z 227DEG 8KT 4366 10684 BRAUN
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 329 PM MDT SAT SEP 7 2013 WYZ024-027-072215- SALT RIVER AND WYOMING RANGES WY-SOUTH LINCOLN COUNTY WY- 329 PM MDT SAT SEP 7 2013 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN LINCOLN COUNTY UNTIL 415 PM MDT... AT 325 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM ABOUT 15 MILES SOUTHWEST OF KEMMERER...MOVING NORTH-NORTHEAST AT 15 MPH. BRIEF HEAVY RAIN...WIND GUSTS UP TO 35 MPH...AND FREQUENT DANGEROUS LIGHTNING ARE EXPECTED WITH THIS STORM. THIS STORM WILL BE NEAR... U.S. HWY 30 MILE POST 40 AROUND 400 PM MDT. FOSSIL BUTTE NATIONAL MONUMENT AROUND 410 PM MDT. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. REPORT HAZARDOUS WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4201 11084 4199 11055 4159 11061 4158 11092 TIME...MOT...LOC 2127Z 201DEG 14KT 4167 11078 JONES
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 332 PM MDT SAT SEP 7 2013 WYZ001-012-013-072300- JACKSON HOLE-TETON AND GROS VENTRE MOUNTAINS- YELLOWSTONE NATIONAL PARK- 332 PM MDT SAT SEP 7 2013 SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE FROM SOUTHWEST TO NORTHEAST ACROSS THE REGION UNTIL 5 PM. BRIEF HEAVY RAIN...SMALL HAIL AND FREQUENT LIGHTNING WILL OCCUR WITH SOME STORMS. WIND GUSTS TO 35 MPH MAY ALSO OCCUR NEAR AND IN THUNDERSTORMS. PLEASE TAKE COVER INDOORS WHEN THREATENING WEATHER APPROACHES. JFB
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
337 PM MDT SAT SEP 7 2013
WYZ009-020-072215-
BIGHORN MOUNTAINS SOUTHEAST WY-NATRONA COUNTY LOWER ELEVATIONS WY-
337 PM MDT SAT SEP 7 2013
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN NATRONA COUNTY UNTIL 415
PM MDT...
AT 334 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR WALTMAN REST AREA...BETWEEN SHOSHONI AND
CASPER...MOVING NORTHEAST AT 30 MPH.
BRIEF HEAVY RAIN...WIND GUSTS UP TO 35 MPH...AND FREQUENT DANGEROUS
LIGHTNING ARE EXPECTED WITH THIS STORM.
THIS STORM WILL BE NEAR...
ARMINTO AROUND 345 PM MDT.
RED WALL BETWEEN 415 AND 430 PM MDT.
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
REPORT HAZARDOUS WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN
RIVERTON AT 1-800-211-1448.
LAT...LON 4324 10728 4344 10723 4344 10679 4298 10713
4305 10745
TIME...MOT...LOC 2135Z 207DEG 24KT 4309 10728
JONESSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 554 PM MDT SAT SEP 7 2013 WYZ017>019-080030- GREEN MOUNTAINS AND RATTLESNAKE RANGE WY-LANDER FOOTHILLS WY-WIND RIVER BASIN WY- 554 PM MDT SAT SEP 7 2013 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL FREMONT COUNTY UNTIL 630 PM MDT... AT 550 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR U.S. HWY 287 MILE MARKER 60...OR 19 MILES SOUTHEAST OF LANDER...MOVING NORTH AT 20 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. THIS STORM WILL BE NEAR... STATE HWY 135 MILE MARKER 10 AROUND 625 PM MDT. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. BRIEF HEAVY RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. REPORT HAZARDOUS WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4297 10854 4297 10823 4262 10828 4262 10852 TIME...MOT...LOC 2354Z 182DEG 18KT 4271 10840 AR
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 602 PM MDT SAT SEP 7 2013 WYZ015-017>019-080030- GREEN MOUNTAINS AND RATTLESNAKE RANGE WY-LANDER FOOTHILLS WY-WIND RIVER BASIN WY-WIND RIVER MOUNTAINS EAST WY- 602 PM MDT SAT SEP 7 2013 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL FREMONT COUNTY UNTIL 630 PM MDT... AT 559 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR HWY JCT 287 AND 28...OR 8 MILES SOUTH OF LANDER...MOVING NORTH AT 15 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. THIS STORM WILL BE NEAR... HWY JCT 287 AND 28 AROUND 610 PM MDT. STATE HWY 131 AROUND 615 PM MDT. U.S. HWY 287 MILE MARKER 80 AND LANDER AROUND 625 PM MDT. MILFORD AROUND 630 PM MDT. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. BRIEF HEAVY RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. REPORT HAZARDOUS WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4297 10882 4294 10856 4262 10860 4265 10884 TIME...MOT...LOC 0002Z 187DEG 14KT 4273 10870 AR
The Riverton/Lander radar (KRIW), 34 km away, was scanning. The volume nearest the first event began at 00:08 UTC.
3 thunderstorm wind. Local standard time, as filed.
A severe thunderstorm produced a 66 mph wind gust at Lander Hunt Field.
Wind gusts of 60 mph were estimated at a subdivision between Riverton and Kinnear.
A 40x50 foot pole barn was ripped from its foundation and destroyed at a Missouri Valley ranch north of Riverton. Two nearby trees were toppled and blocked one lane of Paradise Valley Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2013Every state in 2013This day in weather historyWarnings in Wyoming, September 2013
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 469172, 474603, 469338.