Colorado, 2001

Damaging Wind in Colorado, September 17, 2001

September 17, 2001 · NWS GJT · 1 event in 1 county or zone

1 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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 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 Grand Junction, CO wrote its last area forecast discussion before the first event at Sep 17, 2:29 AM MST, 9 hours 41 minutes earlier.

Area forecast discussion, Sep 17, 2:29 AM MST, 9 hours 41 minutes before
WESTERN COLORADO & EASTERN UTAH AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
329 AM MDT MON SEP 17 2001

ACTIVE WEATHER DAY IN STORE FOR EASTERN UTAH AND WESTERN COLORADO.
KGJX WSR-88D ALREADY QUITE ACTIVE WITH SCATTERED TO NUMEROUS
SHOWERS AND THUNDERSTORMS.  ACTIVITY WEAKENS AS IT DROPS INTO THE
VALLEYS...BUT STILL SEEING SOME RAIN.

THIS WILL BE THE TREND FOR THE ENTIRE DAY AS UPPER LEVEL TROUGH/LOW
OVER NRN UT WILL BE MOVING EAST TODAY AND TONIGHT.  ENERGY EJECTING
OUT OF THE TROUGH WILL BE SENT ENE AND WILL BE AIDED BY THE LEFT EXIT
REGION OF H3 JET MAX WHICH BECOMES ORIENTED ALONG UTAH/ARIZONA AND
COLORADO/NEW MEXICO STATE LINES. PRECIPITABLE WATER VALUES FROM
UPSTREAM SOUNDINGS AND FCST MODEL SOUNDINGS NOT THAT IMPRESSIVE.
HOWEVER...RADAR RETURNS THIS MORNING INDICATE SOME MODERATE RAIN IS
LIKELY FALLING OVER THE HIGHER ELEVATIONS...SO WL CONTINUE MENTION OF
LOCALLY HEAVY RAIN FOR THE MOUNTAIN REGIONS TODAY. SMALL HAIL THREAT
ALSO LOOKS LEGIT WITH SIGNIFICANT COOLING ALOFT. SOME SNOW WILL
LIKELY OVER THE HIGHEST PEAKS TODAY...WITH SNOW LEVELS DROPPING TO AS
LOW AS 10K TONIGHT.  NOT EXPECTING WIDESPREAD ACCUMULATIONS AT PASS
LEVELS...ALTHOUGH CONVECTIVELY AIDED SNOW SHOWERS COULD DROP A FEW
INCHES OF WET SNOW. TROUGH AXIS TIMED TO SLIDE THROUGH AROUND
MIDNIGHT TONIGHT...WITH NWLY FLOW SETTING UP FOR TUE.  THIS WL PUT
THE EMPHASIS OF ANY ADDITIONAL PRECIP ON TUE OVER THE NRN MTNS...WITH
ONLY ISOLATED MORNING ACTIVITY ELSEWHERE.

FAIRLY FLAT...ZONAL PATTERN THEN BUILDS OVER THE AREA FROM WEDNESDAY
THROUGH THE END OF THE WEEK.  OVERALL...PATTERN APPEARS TO BE DRY...
BUT WEAK DISTURBANCES IN THE FLOW MAY BRING SOME MOUNTAIN SHOWERS
FROM TIME-TO-TIME.  NOT PLANNING ANY CHANGES TO EXTENDED PERIODS
THOUGH...AS THIS WILL BE TOUGH TO TIME AT THIS POINT...AND WL MAKE
ADJUSTMENTS AS THE WEEK WEARS ON.

WESTERN COLORADO AND EASTERN UTAH EMERGENCY MANAGERS SHOULD MAINTAIN
A HEIGHTENED LEVEL OF WEATHER AWARENESS THROUGH TONIGHT DUE TO
SCATTERED SHOWERS AND THUNDERSTORMS...SOME WHICH WILL PRODUCE
LOCALLY HEAVY RAIN AND SMALL HAIL. IN ADDITION...SNOW LEVELS WILL
LOWER TO AROUND 10K BY TONIGHT WITH THE POSSIBILITY OF SOME
ACCUMULATIONS NEAR CONVECTIVE SHOWERS.

COLTON

.GJT...NONE.

The radar

The Grand Junction radar (KGJX), 76 km away, was scanning. The volume nearest the first event began at 19:07 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Rio Blanco

When
September 17, 12:10 PM MST to 12:15 PM MST
Where
Rio Blanco County, Rio Blanco
Measured
52 kt (60 mph)
Reported by
GENERAL PUBLIC
Coordinates
39.717, -107.967

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

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

The same day elsewhere

More

Every storm in Colorado in 2001Every state in 2001This day in weather historyWarnings in Colorado, September 2001

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: 5264836.