Several rare June high wind events occurred in the wind prone areas of southeast Wyoming during the second week of June. This was the first event which produced gusts as high as 67 MPH along Interstate 80.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 CYS wrote it up.
Several rare June high wind events occurred in the wind prone areas of southeast Wyoming during the second week of June. This was the first event which produced gusts as high as 67 MPH along Interstate 80.
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 Cheyenne, WY wrote its last area forecast discussion before the first event at Jun 9, 4:35 AM MST, 5 hours 31 minutes earlier. Its key messages:
Area Forecast Discussion
National Weather Service Cheyenne WY
535 AM MDT Tue Jun 9 2026
.KEY MESSAGES...
- Temperatures will warm back up on Tuesday with highs east of
the Laramie Range 10-15 degrees above normal, with
temperatures backing down through Thursday before another
warmup on Friday to end the week.
- Red Flag Warning in effect for eastern Wyoming and all of
western Nebraska Tuesday through late Wednesday, with critical
fire weather conditions likely extending through late in the
week.
&&
.SHORT TERM /THROUGH WEDNESDAY NIGHT/...
Issued at 153 AM MDT Tue Jun 9 2026
Some showers and thunderstorms this morning lifting up across
the Colorado border into the Nebraska Panhandle this morning on
radar. The environment is just weak enough that most of this
activity is losing it's intensity before it can reach our area,
but monitoring for strength as well as overall rainfall in case
any additional products are necessary. While thunderstorm
activity will relax moving into this afternoon, don't expect
our weather to quiet down in the least as we switch gears into
critical fire weather conditions and strong, gusty winds through
Wednesday.
For today, we'll see the upper level trough continuing to move
over our region, shifting flow from southwesterly to more
westerly over the course of the day, with this flow persisting
into Wednesday for most of the day until very late/overnight
when a shortwave will swing in from the northwest and bring a
cooler pattern just outside of the short term. This pattern will
promote warmer temperatures today thanks to dry and warm desert
southwest area overspreading the region. This will primarily
impact highs east of the Laramie Range, with temperatures 10-15
degrees above normal, while to the west we should see a a
pleasantly cooler day thanks to the incoming trough cutting off
the warmer flow in this region earlier on, with highs much
closer to normal. But the aforementioned dry air alongside a
tightened pressure from this system creating gusty winds will
create an critical fire weather environment, with Red Flag
Warnings in effect for eastern Wyoming and the Nebraska
Panhandle starting at noon today. And with relative humidity
recoveries poor with further gusty and dry conditions tomorrow,
this Warning is in effect through 9 PM on Wednesday. It must be
noted that the Nebraska Panhandle has received notable
precipitation recently, with greenup finally beginning to occur.
While fuels may finally be exiting a critical status, to limit
confusion due to expected critical weather conditions, have
elected to keep the Red Flag valid across the area. Finally,
this system should still be able to produce a few showers or
storms later today, but with dry boundary layer, we'll likely be
seeing them struggle to get precipitation to the surface after
daytime heating. With elevated instability present alongside
inverted V sounding profiles, expecting we'll see gusty virga
and the potential for some dry lightning, but locations in the
extreme western portion of our CWA may be able to see some
precipitation development before the strengthening storms exit
our CWA and continue eastwards.
Wednesday marks the cooler day as warm air intrusion begins to
wane, but it will still be a relatively warmer than normal day
east of the Laramie Range again as highs sit around 2 to 6
degrees above normal. Dry air will remain firmly in place
however, continuing the risk of critical fire conditions
alongside the strong winds which will be the strongest of the
week thanks to notably enhanced pressure gradients. But high
wind products are not currently anticipated, as surface pressure
gradients lie just outside of where we would like to see them
for gusts of 58+ mph, and in house guidance indicates only
around a 40% probability of high wind criteria. If anywhere were
to hit it though, look to the Chugwater to Wheatland corridor
alongside the Arlington/Elk Mountain region as the most likely
candidates.
&&
.LONG TERM /THURSDAY THROUGH MONDAY/...
Issued at 1234 PM MDT Mon Jun 8 2026
The long term forecast appears dry with a switch in the flow regime
from southerly flow to a more westerly. This is due to a persistent
upper level trough pattern to our north into Canada. A cold front
Wednesday will effectively cut us off from the more moist air that
has been advecting in from the Gulf. During this period we are
watching for conditions favorable for fire weather and high winds.
The high wind conditions spill over from Tuesday as flow at the 700
mb level stays elevated. The GFS is projecting winds at this level
at around 50 knots. As daytime mixing commences the risk of these
winds being mixed to the surface increases. Additionally enhancement
by mountain wave breaking is likely to occur. Taking a horizontal
cross section across our west to east ranges depict downsloping
winds approaching 55 knots during the late morning to early
afternoon hours collocated in areas of negative omega. Higher gusts
are certainly possible given the low resolution of global models.
This is not a great combination with the expected low relative
humidities values. Across most of the area values are expected to
plummet below 15 percent and temperatures in the 70s to high 80s.
This is following previous poor nighttime recoveries of about 40-50
percent.
Going into Thursday and beyond, winds start to calm down after the
departure of the mid level shortwave and ridging builds in. As
mentioned our source of moisture has been cut off by the prevailing
synoptic pattern, so humidity values remain very low. Winds are
likely to remain high enough to warrant continued fire weather
products through just about the entirety of the long term. Saturday
and Sunday may see enough moisture and a source of lift from a
clipper type system to support a few storms. Both GFS and Euro are
on board with this solution with the usual caveat being that at
this range solutions will change. If you are looking for any bit of
good news past the long term, the latest CPC outlook has our area in
below average temperatures and increased precipitation chances.
&&
.AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/...
Issued at 532 AM MDT Tue Jun 9 2026
A few low clouds noted over KCYS this morning bringing MVFR
conditions to the terminal. Once these depart in a few hours,
VFR conditions expected widespread for all terminals through the
end of the forecast period. Winds increasing today from the
south to southwest and then becoming westerly overnight, with
gusts 25 to 40 knots, strongest at WY terminals. CIGs mid to
high level, becoming around 10K feet later this afternoon and
evening with a chance of nearby showers or storms.
&&
.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Red Flag Warning from noon today to 9 PM MDT Wednesday for
WYZ417-418-430>433.
NE...Red Flag Warning from noon today to 9 PM MDT Wednesday for
NEZ434>437.
&&
SHORT TERM...CG
LONG TERM...RV
AVIATION...CGPreliminary Local Storm Report
National Weather Service Cheyenne WY
921 AM MDT Tue Jun 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 AM Rain 4 NNE Wheatland 42.10N 104.93W
06/09/2026 M0.02 Inch Platte WY Cocorahs
Cocorahs station WY-PT-50 Wheatland 4.0 NNE.
0700 AM Rain 6 SSE Bordeaux 41.87N 104.88W
06/09/2026 M0.44 Inch Platte WY Cocorahs
Cocorahs station WY-PT-53 Wheatland 13.0
SSE.
0700 AM Rain 10 ESE Chugwater 41.68N 104.66W
06/09/2026 M0.82 Inch Platte WY Cocorahs
Cocorahs station WY-PT-46 Chugwater 9.6 ESE.
0700 AM Rain Wheatland 42.05N 104.96W
06/09/2026 M0.08 Inch Platte WY Cocorahs
Cocorahs station WY-PT-43 Wheatland 0.4 S.
0700 AM Rain 16 WSW Bordeaux 41.83N 105.21W
06/09/2026 M0.27 Inch Platte WY Cocorahs
Cocorahs station WY-PT-14 Wheatland 20.0 SW.
0757 AM Rain 6 W Bordeaux 41.96N 105.06W
06/09/2026 M0.27 Inch Platte WY Cocorahs
Cocorahs station WY-PT-40 Wheatland 8.4 SW.
0800 AM Rain 9 WSW Bordeaux 41.91N 105.13W
06/09/2026 M0.06 Inch Platte WY Mesonet
Mesonet station SMCW4 9.5 W Bordeaux.
0850 AM Rain 2 ENE Wheatland 42.06N 104.93W
06/09/2026 M0.05 Inch Platte WY AWOS
AWOS station KEAN 1 ENE Wheatland.
0905 AM Rain 1 SE Wheatland 42.05N 104.95W
06/09/2026 M0.07 Inch Platte WY Mesonet
Mesonet station 6773D Wheatland.
0700 AM Rain 10 SSE Chugwater 41.63N 104.73W
06/09/2026 M0.04 Inch Laramie WY Cocorahs
Cocorahs station WY-LM-278 Chugwater 9.7
SSE.
0700 AM Rain 13 WSW Chugwater 41.65N 105.03W
06/09/2026 M0.02 Inch Laramie WY Cocorahs
Cocorahs station WY-LM-258 Chugwater 13.1
WSW.
0600 AM Rain 1 E Torrington 42.07N 104.17W
06/09/2026 M0.03 Inch Goshen WY Cocorahs
Cocorahs station WY-GS-57 Torrington 0.8 E.
0700 AM Rain 4 WNW Veteran 41.98N 104.42W
06/09/2026 M0.57 Inch Goshen WY Cocorahs
Cocorahs station WY-GS-70 Veteran 2.3 NW.
0700 AM Rain 1 E Torrington 42.07N 104.17W
06/09/2026 M0.03 Inch Goshen WY Cocorahs
Cocorahs station WY-GS-69 Torrington.
0700 AM Rain 7 NE Fort Laramie 42.28N 104.42W
06/09/2026 M0.02 Inch Goshen WY Cocorahs
Cocorahs station WY-GS-66 Fort Laramie 6.8
NE.
0700 AM Rain 5 W Torrington 42.08N 104.28W
06/09/2026 M0.12 Inch Goshen WY Cocorahs
Cocorahs station WY-GS-58 Torrington 5.2 W.
0700 AM Rain 10 WSW Veteran 41.91N 104.53W
06/09/2026 M0.40 Inch Goshen WY Cocorahs
Cocorahs station WY-GS-50 Yoder 12.2 W.
0700 AM Rain 4 SW Fort Laramie 42.18N 104.57W
06/09/2026 M0.11 Inch Goshen WY Cocorahs
Cocorahs station WY-GS-27 Fort Laramie 3.5
SW.
0730 AM Rain Lingle 42.14N 104.34W
06/09/2026 M0.08 Inch Goshen WY Cocorahs
Cocorahs station WY-GS-61 Lingle 0.2 SSE.
0800 AM Rain 1 SE Torrington 42.06N 104.17W
06/09/2026 M0.02 Inch Goshen WY Cocorahs
Cocorahs station WY-GS-9 Torrington.
0800 AM Rain 10 SSE Torrington 41.94N 104.10W
06/09/2026 M0.04 Inch Goshen WY Cocorahs
Cocorahs station WY-GS-20 Torrington 9.6
SSE.
0830 AM Rain 5 SSE Hawk Springs 41.72N 104.21W
06/09/2026 M0.27 Inch Goshen WY Mesonet
Mesonet station HWKW4 5.4 SE Hawk Springs.
0853 AM Rain 2 E Torrington 42.07N 104.15W
06/09/2026 M0.03 Inch Goshen WY ASOS
ASOS station KTOR Torrington Airport - Tor.
0908 AM Rain 8 SSE Torrington 41.96N 104.11W
06/09/2026 M0.33 Inch Goshen WY Mesonet
Mesonet station FW3961 Turner.
0844 AM Rain 11 SSE Garrett 41.97N 105.52W
06/09/2026 M0.06 Inch Albany WY Mesonet
Mesonet station DODW4 11 SSE Garrett - Dodge
Creek Raws - Dod.
0635 AM Rain 1 N Scottsbluff 41.88N 103.66W
06/09/2026 M1.03 Inch Scotts Bluff NE Cocorahs
Cocorahs station NE-SB-21 1 N Scottsbluff.
0700 AM Rain 1 NNE Scottsbluff 41.88N 103.65W
06/09/2026 M0.42 Inch Scotts Bluff NE Cocorahs
Cocorahs station SCOT039 Scottsbluff 1.5 NE.
0700 AM Rain 15 NW Harrisburg 41.71N 103.94W
06/09/2026 M0.06 Inch Scotts Bluff NE Cocorahs
Cocorahs station NE-SB-24 Lyman 15.2 SSE.
0800 AM Rain 6 NNE Minatare 41.89N 103.44W
06/09/2026 M0.79 Inch Scotts Bluff NE Cocorahs
Cocorahs station NE-SB-17 Minatare 6.3 NNE.
0800 AM Rain 1 ENE Scottsbluff 41.88N 103.64W
06/09/2026 M0.54 Inch Scotts Bluff NE Cocorahs
Cocorahs station NE-SB-13 Scottsbluff 1.3
ENE.
0800 AM Rain 2 W Terrytown 41.85N 103.72W
06/09/2026 M0.58 Inch Scotts Bluff NE Mesonet
Mesonet station GRCN1 2.4 W Terrytown.
0834 AM Rain 2 W Gering 41.83N 103.71W
06/09/2026 M0.65 Inch Scotts Bluff NE Mesonet
Mesonet station SBFN1 2 W Gering - Scotts
Bluff.
0845 AM Rain Terrytown 41.85N 103.67W
06/09/2026 M0.61 Inch Scotts Bluff NE Mesonet
Mesonet station GW2986 Scottsbluff.
0853 AM Rain 4 E Scottsbluff 41.87N 103.58W
06/09/2026 M0.58 Inch Scotts Bluff NE ASOS
ASOS station KBFF Scottsbluff Airport - Bff.
0855 AM Rain 6 E Mitchell 41.95N 103.70W
06/09/2026 M0.01 Inch Scotts Bluff NE Mesonet
Mesonet station NB056 Scottsbluff 6NW.
0855 AM Rain 2 NNW Scottsbluff 41.89N 103.68W
06/09/2026 M0.17 Inch Scotts Bluff NE Mesonet
Mesonet station NB055 Scottsbluff 2NW.
0900 AM Rain 1 SSW Gering 41.81N 103.67W
06/09/2026 M0.23 Inch Scotts Bluff NE Mesonet
Mesonet station FW9572 Gering.
0600 AM Rain Bayard 41.76N 103.33W
06/09/2026 M0.30 Inch Morrill NE Cocorahs
Cocorahs station NE-ML-8 Bayard 0.3 NNW.
0855 AM Rain 6 N Broadwater 41.69N 102.86W
06/09/2026 M0.10 Inch Morrill NE Mesonet
Mesonet station NB072 Broadwater 7N.
0600 AM Rain 8 N Lodgepole 41.27N 102.66W
06/09/2026 M0.53 Inch Cheyenne NE CO-OP Observer
CO-OP Observer station LGPN1 8.2 N
Lodgepole.
0700 AM Rain 2 NNW Sidney 41.16N 102.98W
06/09/2026 M0.83 Inch Cheyenne NE Cocorahs
Cocorahs station NE-CN-5 Sidney 1.7 NNW.
0700 AM Rain 7 NNE Sidney 41.22N 102.91W
06/09/2026 M0.76 Inch Cheyenne NE Cocorahs
Cocorahs station NE-CN-12 6 NE Sidney.
0700 AM Rain 4 NNW Sidney 41.19N 102.99W
06/09/2026 M0.64 Inch Cheyenne NE Cocorahs
Cocorahs station CHEY065 Sidney 3.6 NNW.
0700 AM Rain Sidney 41.13N 102.98W
06/09/2026 M1.17 Inch Cheyenne NE Cocorahs
Cocorahs station CHEY060 Sidney 0.6 S.
0700 AM Rain 8 W Lorenzo 41.05N 103.20W
06/09/2026 M1.08 Inch Cheyenne NE Cocorahs
Cocorahs station CHEY049 Sidney 13.1 WSW.
0700 AM Rain 9 WNW Lorenzo 41.06N 103.22W
06/09/2026 M1.02 Inch Cheyenne NE Cocorahs
Cocorahs station CHEY037 Sidney 14.1 WSW.
0700 AM Rain 8 SE Potter 41.13N 103.23W
06/09/2026 M0.71 Inch Cheyenne NE Cocorahs
Cocorahs station CHEY036 Sidney 12.9 W.
0700 AM Rain 6 E Lorenzo 41.03N 102.93W
06/09/2026 M0.05 Inch Cheyenne NE Cocorahs
Cocorahs station CHEY028 Sidney 8.1 SSE.
0700 AM Rain Sidney 41.13N 102.97W
06/09/2026 M1.19 Inch Cheyenne NE Cocorahs
Cocorahs station CHEY025 Sidney 0.7 S.
0700 AM Rain 1 WNW Gurley 41.33N 102.99W
06/09/2026 M0.07 Inch Cheyenne NE Cocorahs
Cocorahs station CHEY019 Gurley 1.3 W.
0700 AM Rain Sidney 41.13N 102.97W
06/09/2026 M1.17 Inch Cheyenne NE Cocorahs
Cocorahs station CHEY007 Sidney 1.2 SSE.
0715 AM Rain Lodgepole 41.15N 102.64W
06/09/2026 M0.55 Inch Cheyenne NE Cocorahs
Cocorahs station CHEY5550 Lodgepole 0.16
ENE.
0853 AM Rain 2 SSW Sidney 41.10N 102.98W
06/09/2026 M0.97 Inch Cheyenne NE ASOS
ASOS station KSNY Sidney Airport.
0855 AM Rain 5 NE Brownson 41.23N 103.02W
06/09/2026 M0.12 Inch Cheyenne NE Mesonet
Mesonet station NB058 Sidney 2NW.
0855 AM Rain 8 SE Sidney 41.05N 102.87W
06/09/2026 M0.06 Inch Cheyenne NE AWOS
AWOS station K1IW 7 SE Sidney.
0855 AM Rain 7 E Gurley 41.32N 102.83W
06/09/2026 M0.10 Inch Cheyenne NE AWOS
AWOS station K1HW 7 E Gurley.
0905 AM Rain 13 ENE Gurley 41.36N 102.74W
06/09/2026 M0.16 Inch Cheyenne NE Mesonet
Mesonet station GW1811 GURLEY.
0908 AM Rain 2 SE Brownson 41.15N 103.06W
06/09/2026 M0.58 Inch Cheyenne NE Mesonet
Mesonet station FW8560 Sidney.
0909 AM Rain 6 W Lorenzo 41.02N 103.17W
06/09/2026 M0.78 Inch Cheyenne NE Mesonet
Mesonet station FW8226 Sidney.
0909 AM Rain 7 WNW Lorenzo 41.07N 103.16W
06/09/2026 M0.98 Inch Cheyenne NE Mesonet
Mesonet station FW8225 Sidney.
0909 AM Rain 1 NW Lorenzo 41.05N 103.07W
06/09/2026 M0.38 Inch Cheyenne NE Mesonet
Mesonet station FW8155 Sidney.
0630 AM Rain 10 SW Alliance 42.02N 103.03W
06/09/2026 M2.77 Inch Box Butte NE Cocorahs
Cocorahs station NE-BX-7 Alliance 10.1 SW.
0700 AM Rain 5 E Alliance 42.09N 102.77W
06/09/2026 M0.33 Inch Box Butte NE Cocorahs
Cocorahs station BOX 4405 Alliance 5.51 E.
0700 AM Rain 7 E Berea 42.20N 102.86W
06/09/2026 M0.22 Inch Box Butte NE Cocorahs
Cocorahs station BOX 4352 Alliance 7.12 N.
0800 AM Rain 5 E Alliance 42.09N 102.77W
06/09/2026 M0.33 Inch Box Butte NE Cocorahs
Cocorahs station NE-BX-5 Alliance 5.4 E.
0853 AM Rain 5 SE Alliance 42.06N 102.80W
06/09/2026 M0.15 Inch Box Butte NE AWOS
AWOS station KAIA 4 ESE Alliance.
0855 AM Rain 4 ESE Berea 42.18N 102.92W
06/09/2026 M0.13 Inch Box Butte NE Mesonet
Mesonet station NB003 Alliance 6NW.
0909 AM Rain Alliance 42.11N 102.87W
06/09/2026 M0.46 Inch Box Butte NE Mesonet
Mesonet station ALLNC Alliance.
&&The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
Four WYDOT sites reported wind gusts over 58 MPH for multiple hours. Peak gust of 67 MPH observed at Halleck Ridge.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2026Every state in 2026This day in weather historyWarnings in Wyoming, June 2026
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: 1338577.