Utah, 2008

High Wind in Utah, November 20, 2008

November 20, 2008 · NWS SLC · 2 events in 2 counties and zones

Gusty easterly canyon winds developed early in the morning along the Wasatch Front and in the Cache Valley in northern Utah.

The toll

Deaths
0
Injuries
0
Property damage
$7,000
Crop damage
None recorded
Events
2

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.

What happened

The episode as NWS SLC wrote it up.

Gusty easterly canyon winds developed early in the morning along the Wasatch Front and in the Cache Valley in northern Utah.

What forecasters said that day

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 Nov 20, 4:20 AM MST, 2 hours 40 minutes earlier.

Area forecast discussion, Nov 20, 4:20 AM MST, 2 hours 40 minutes before
AREA FORECAST DISCUSSION...UPDATED AVIATION SECTION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
420 AM MST THU NOV 20 2008

.SYNOPSIS...A WEAK AND GENERALLY DRY COLD FRONT WILL CROSS NORTHERN
UTAH TONIGHT. A SECOND WEAK FRONT WILL CLIP FAR NORTHERN UTAH LATE
SATURDAY NIGHT THROUGH EARLY SUNDAY.

&&

.DISCUSSION...THE UPPER LEVEL RIDGE ACROSS THE INTERIOR WEST WILL
FLATTEN AS A SERIES OF PACIFIC SHORTWAVES RACE EAST ACROSS THE NRN
ROCKIES/NRN GREAT BASIN TONIGHT THROUGH THE WEEKEND. THE FIRST
SHORTWAVE WILL ARRIVE TONIGHT...DRIVING A WEAK COLD FRONT THROUGH
NRN UTAH LATE TONIGHT/EARLY FRIDAY. SOLID LOW-LEVEL COOLING NOT VERY
SUPPORT BY DYNAMIC LIFT OR MID-LEVEL COLD AIR. AS SUCH WILL PLAN ON
COOLER TEMPS WITH A LOW-END THREAT FOR PRECIP OVER THE FAR NRN ZONES
LATE TONIGHT THROUGH EARLY FRIDAY.

A SECOND SYSTEM WILL REACH THE AREA SATURDAY NIGHT. THIS FEATURE
LIKE THE FIRST LOOKS POORLY ORGANIZED WITH THE BEST DYNAMICS AND
MID-LEVEL COLD AIR WELL NORTH OF THE STATE. ONCE AGAIN WILL LOOK FOR
A SHALLOW FRONT PUSHING THROUGH LATE SATURDAY NIGHT/EARLY SUNDAY
WITH ONLY A MINIMAL THREAT FOR PRECIP.

HEIGHTS BUILD SHARPLY EARLY NEXT WEEK AHEAD OF A SPLITTING TROUGH
WELL OF THE WEST COAST. THE SRN PORTION THE SPLIT SHOULD CLOSE OFF
WELL REMOVED FROM THE CA COAST MONDAY...AND REMAIN OFF SHORE THROUGH
AT LEAST EARLY WEDNESDAY. HARD TO SEE ANY SHORTWAVE ENERGY EJECTING
OUT AHEAD OF THIS CLOSED LOW HAVING MUCH AFFECT ON EVEN SW UTAH
UNTIL WEDNESDAY AT THE SOONEST. INCREASING MOISTURE OUT AHEAD OF THE
LOW WILL SPAWN A FEW SHOWERS OVER UTAH...BUT NOTHING ORGANIZED AS
THE BEST COLD AIR/DYNAMICS REMAIN OFF TO THE WEST.

BOTH THE GFS AND ECMWF ARE STRUGGLING WITH THE LOW AS IT MOVES
INLAND LATE IN THE WEEK. BOTH ARE LEANING TOWARDS A SRN GREAT
BASIN/DESERT SW STORM...BUT THE DETAILS ARE STILL SIGNIFICANTLY
DIFFERENT BETWEEN THE TWO MODELS. WHATEVER DOES TRANSPIRE WILL BE
BEYOND THE CURRENT DAY 7 FORECAST...AND WILL AFFECT THE COMING
HOLIDAY WEEKEND.

&&

.AVIATION...VFR CONDITIONS UNDER MOSTLY CLEAR SKIES ARE EXPECTED TO
CONTINUE AT THE SLC TERMINAL THROUGH THE DAY. WINDS SHOULD BE LIGHT
AND PREVAILING SOUTHEASTERLY BEFORE SWITCHING TO THE NORTHWEST
BETWEEN 20Z AND 22Z...LATER THAN USUAL. THERE IS A 30 PERCENT CHANCE
THAT WINDS WILL REMAIN SOUTHEASTERLY THROUGH THE AFTERNOON.

&&

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

&&

PUBLIC...CONGER
AVIATION...TRAPHAGAN

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

Event by event

2 high wind. Local standard time, as filed.

High Wind, Cache Valley/Utah

When
November 20, 7:00 AM MST to 10:00 AM MST
Where
Cache Valley/Utah forecast zone
Measured
50 kt (58 mph) estimated gust
Property damage
$7,000
Reported by
Public

Damage due to gusty winds was reported one mile east of Logan, where a 15 foot boat and a trailer were both flipped over into a yard. Also, a screen door was ripped off a house, and ten inch diameter tree branches were downed.

High Wind, Salt Lake and Tooele Valleys

When
November 20, 8:00 AM MST
Where
Salt Lake and Tooele Valleys forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet

The sensor at the Mouth of Parley's Canyon recorded a wind gust of 58 mph.

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Utah in 2008Every state in 2008This day in weather historyWarnings in Utah, November 2008

Sources

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: 142752, 142751.