Strong post-frontal downslope winds were observed in Castle Country, primarily impacting the town of Ferron.
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 SLC wrote it up.
Strong post-frontal downslope winds were observed in Castle Country, primarily impacting the town of Ferron.
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 Salt Lake City, UT wrote its last area forecast discussion before the first event at Jan 17, 3:15 PM MST, 4 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 315 PM MST MON JAN 17 2011 .SYNOPSIS...WEAK HIGH PRESSURE WILL BUILD OVER THE AREA THROUGH TUESDAY. A COLD FRONT WILL MOVE THROUGH THE STATE TUESDAY NIGHT AND WEDNESDAY. NORTHWEST FLOW IS EXPECTED TO RETURN FOR THE END OF THE WORK WEEK. && .DISCUSSION...TRAILING SHORTWAVE PUSHING ACROSS FAR NORTHEASTERN UTAH AND SOUTHWEST WYOMING THIS AFTERNOON...ALLOWING FOR ONE LAST BURST OF LIGHT PRECIP OVER THE NORTHERN MOUNTAINS. UNSEASONABLY WARM TEMPERATURES ACROSS THE AREA ARE RESULTING IN HIGH SNOW LEVELS...SO THREAT OF ADDITIONAL SNOW/ICE ACCUMULATION IS LIMITED. THEREFORE...HAVE ENDED THE GOING WINTER WEATHER ADVISORY. DRIER AIR WILL CONTINUE TO MOVE INTO THE AREA AS HIGH PRESSURE BUILDS OVER THE AREA TONIGHT. THOUGH AIRMASS OVER THE AREA WILL BE SLIGHTLY WARMER TOMORROW...VALLEY TEMPERATURE INVERSIONS SHOULD LIMIT MIXING...RESULTING IN SOMEWHAT COOLER VALLEY MAXES THAN TODAY...THOUGH STILL SEVERAL DEGREES ABOVE CLIMO. MOUNTAIN TEMPS SHOULD REMAIN QUITE MILD. GLOBAL MODELS ARE IN GOOD AGREEMENT WITH RESPECT TO THE TUESDAY NIGHT/WEDNESDAY STORM SYSTEM. ALL INDICATE A SIGNIFICANT COLD FRONT PUSHING THROUGH NORTHERN UTAH TUESDAY NIGHT/EARLY WEDNESDAY AND THROUGH THE REST OF THE STATE DURING THE DAY MONDAY. DECENT FGEN FORCING EXISTS...WHICH WOULD RESULT IN A BAND OF PRECIP WITH THE FRONT...AT LEAST OVER NORTHERN UTAH. HOWEVER...MOISTURE DOES NOT LOOK ESPECIALLY IMPRESSIVE...WHICH COULD BE A LIMITING FACTOR...ESPECIALLY WITH ANY SHOWER ACTIVITY BEHIND THE FRONT. STILL...SIGNIFICANT TEMPERATURE DROP EXPECT BEHIND THE FRONT WITH 700 MB TEMPS EXPECTED TO DROP FROM -4C OR SO TUESDAY AFTERNOON TO -12C BY WEDNESDAY AFTERNOON. 12Z MODELS INDICATED A BIT SLOWER FRONTAL TIMING THAN INDICATED BY THE PREVIOUS FORECAST PACKAGE...SO ADJUSTED POPS ACCORDINGLY. MIDWEEK STORM SYSTEM LOOKS TO BE A QUICK HITTER...ALLOWING HIGH PRESSURE AND ASSOCIATED VALLEY TEMPERATURE INVERSIONS TO RETURN BY THURSDAY. AIRMASS WARMS RAPIDLY ALOFT...BUT THIS WILL LIKELY NOT BE REALIZED AT LOWER ELEVATIONS. EC/GFS INDICATING THAT MOISTURE WILL SLOWLY INCREASE OVER NORTHERN UTAH THURSDAY NIGHT/FRIDAY AHEAD OF AN APPROACHING TROUGH...THOUGH THEY DISAGREE ON THE TRACK OF THE TROUGH AS IT DIVES DOWN. IN THE 12Z EC...THIS SYSTEM MOVES DIRECTLY ACROSS THE CWA...BRINGING ANOTHER COLD FRONT WITH IT. THE GFS...HOWEVER...KEEPS THE SYSTEM WEST OF THE AREA. THOUGH CONFIDENCE IS LOW IN THE TRACK OF THE SYSTEM...FELT ABOVE CLIMO POPS WERE WELL WARRANTED REGARDLESS. ALL MODELS INDICATE HIGH PRESSURE RETURNING AGAIN FOR EARLY NEXT WEEK. && .AVIATION...VFR CONDITIONS WILL PREVAIL AT THE SLC TERMINAL THROUGH THE FORECAST PERIOD. CIGS WILL MOSTLY BE ABOVE 7000FT AGL...BUT MAY OCCASIONALLY LOWER TO 6000-7000FT AGL THROUGH 08Z. OTHERWISE...WIND SHIFT TO THE SOUTH EXPECTED 01-03Z. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...NONE. WY...NONE. && PUBLIC...TRAPHAGAN AVIATION...CHENG 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 319 PM MST MON JAN 17 2011 UTZ001>016-019>021-517-518-WYZ021-182230- 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- 319 PM MST MON JAN 17 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF UTAH AND SOUTHWEST WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT RAIN AND SNOW SHOWERS OVER THE HIGHER TERRAIN WILL TAPER OFF THIS EVENING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A STRONG COLD FRONT IS FORECAST TO CROSS THE OUTLOOK AREA FROM NORTH TO SOUTH TUESDAY NIGHT THROUGH WEDNESDAY. THIS FRONT WILL BRING ACCUMULATING SNOWFALL TO THE MOUNTAINS AND VALLEYS...ALONG WITH COLDER TEMPERATURES AND BREEZY NORTH WINDS. THIS SNOWFALL MAY LINGER INTO THE WEDNESDAY MORNING COMMUTE ALONG THE WASATCH FRONT. .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)
1 high wind. Local standard time, as filed.
Strong downslope winds damaged a manufactured home in Ferron, blowing off the roof of the trailer. In addition, winds were strong many miles to the south of Ferron, with a maximum wind gust of 72 mph recorded at the Fremont Junction sensor.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2011Every state in 2011This day in weather historyWarnings in Utah, January 2011
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: 280847.