
A cold front will cross the Great Lakes and Northeast U.S. through Monday with gusty winds and areas of rain showers. A strong atmospheric river is expected to move into the Pacific Northwest by midweek bringing a threat for moderate to heavy rainfall, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >
Overview
Thunderstorms developed across northeast Colorado Saturday afternoon, September 17, 2016. As the storms moved east, they produced reports of hail, severe winds to 66 mph, and a few tornadoes. At least 3 landspout tornadoes were observed near the Colorado border. The first two occurred around Cheyenne Wells, Colorado in Cheyenne County Colorado. The third tornado occurred south of Weskan in Wallace County, Kansas.
Tornadoes:
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Tornado #1 - 3 miles WNW Cheyenne Wells, CO to 1 mile SE of Cheyenne Wells, CO
Track Map
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Tornado #2 - 4 miles NW of Cheyenne Wells, CO to 2 miles N of Cheyenne Wells, CO
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Tornado #3 - 4 miles S of Weskan, KS to 4 miles SE of Weskan, KS
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The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
| EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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Additional Information: SPC Outlooks
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| SPC Day 3 Categorical Outlook | SPC Day 3 Probabilistic Outlook | SPC Day 2 Categorical Outlook | SPC Day 2 Probabilistic Outlook |
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| SPC Day 1 Categorical Outlook | SPC Day 1 Tornado Outlook | SPC Day 1 Hail Outlook | SPC Day 1 Wind Outlook |
Photos & Video:
Tornado Images:
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| Two landspout tornadoes near Cheyenne Wells, Colorado Courtesy: Phill Knudsen |
Two landspout tornadoes near Cheyenne Wells, Colorado Courtesy Andrew Heyl |
Landspout Tornado near Cheyenne Wells, Colorado Courtesy: Phil Knudsen |
Two landspout tornadoes near Cheyenne Wells, Colorado Courtesy: Clarence Heckens |
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GOODLAND KS
857 PM MDT SAT SEP 17 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0200 PM HAIL 1 W YUMA 40.12N 102.74W
09/17/2016 E0.88 INCH YUMA CO PUBLIC
HAIL RANGED FROM PEA TO NICKEL SIZE. LASTED 10 MINUTES.
0206 PM HAIL YUMA 40.12N 102.72W
09/17/2016 E0.50 INCH YUMA CO PUBLIC
DIME SIZE HAIL.
0310 PM HAIL 6 NW RULETON 39.40N 101.96W
09/17/2016 E1.50 INCH SHERMAN KS TRAINED SPOTTER
LASTED 10 MINUTES.
0320 PM HAIL 4 N GOODLAND 39.41N 101.71W
09/17/2016 E1.75 INCH SHERMAN KS EMERGENCY MNGR
DIME SIZE HAIL WITH SOME GOLF BALL MIXED IN.
0320 PM HAIL 4 N GOODLAND 39.41N 101.71W
09/17/2016 E0.50 INCH SHERMAN KS NWS EMPLOYEE
DIME SIZE HAIL. LASTED 5 MINUTES.
0328 PM TSTM WND GST 8 N GOODLAND 39.47N 101.71W
09/17/2016 E60.00 MPH SHERMAN KS EMERGENCY MNGR
LARGE DARK WALL OF DIRT BLEW AT VEHICLE. ABOUT BLEW
VEHICLE OFF HIGHWAY 27.
0338 PM HAIL 14 NNE GOODLAND 39.53N 101.59W
09/17/2016 E1.00 INCH SHERMAN KS PUBLIC
BETWEEN NICKEL AND QUARTER SIZE HAIL. JUST STOPPING AT
TIME OF EVENT.
0350 PM TORNADO CHEYENNE WELLS 38.82N 102.35W
09/17/2016 CHEYENNE CO EMERGENCY MNGR
LANDSPOUT TORNADO DAMAGE REPORTED. 6 CAR GARAGE LEVELED.
PROPERTY DAMAGE TO 4 OR 5 HOUSES INCLUDING SHINGLES OFF
ROOF AND DOWNED FENCES. TIME APPROXIMATED BASED ON
PREVIOUS LSRS.
0350 PM TORNADO 2 N CHEYENNE WELLS 38.85N 102.35W
09/17/2016 CHEYENNE CO TRAINED SPOTTER
TWO LANDSPOUTS SEEN. THIS IS THE NORTHERN ONE. LASTED 10
MINUTES.
0350 PM TORNADO 1 W CHEYENNE WELLS 38.82N 102.37W
09/17/2016 CHEYENNE CO TRAINED SPOTTER
TWO LANDSPOUTS SEEN. THIS ONE IS THE SOUTHERN LANDSPOUT.
LASTED 10 MINUTES.
0400 PM TORNADO 4 S WESKAN 38.80N 101.96W
09/17/2016 WALLACE KS TRAINED SPOTTER
LANDSPOUT ROUGHLY 3-5 MILES SOUTH OF WESKAN. LASTED 15
MINUTES AND SLOWLY MOVED NORTH-NORTHEAST.
0407 PM TORNADO 4 E CHEYENNE WELLS 38.82N 102.28W
09/17/2016 CHEYENNE CO LAW ENFORCEMENT
LANDSPOUT 4-5 MILES EAST OF CHEYENNE WELLS ON HIGHWAY 40.
LASTED 10 MINUTES.
0417 PM TSTM WND GST 2 N ATWOOD 39.84N 101.05W
09/17/2016 M66.00 MPH RAWLINS KS MESONET
0430 PM HAIL ATWOOD 39.81N 101.04W
09/17/2016 E0.88 INCH RAWLINS KS PUBLIC
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