Alert archive / Wyoming / High Wind Warnings in 2022

High Wind Warning 38, NWS Cheyenne, WY

May 18, 20225 counties in Wyoming

NWS Cheyenne, WY issued this high wind warning at May 18, 2022, 2:16 PM MDT for 5 counties in Wyoming. It took effect at May 19, 2022, 3:00 AM MDT. It was in force for 16 hr. 60 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 18, 2022, 2:16 PM MDT (20:16 UTC)
In effect from
May 19, 2022, 3:00 AM MDT
Expired
May 19, 2022, 7:00 PM MDT
In force
16 hr
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY, Converse County, WY, Laramie County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 109 km from the middle of the area, began a volume at 20:17 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
May 19, 5:16 AM MDTNON-TSTM WND GST 587 Nw Elk Mountain, WYMESONET STATION WY18 HALLECK RIDGE (WYDOT).
May 19, 5:28 AM MDTNON-TSTM WND GST 623 Nw Elk Mountain, WYMESONET STATION WY19 2.9 NW ELK MOUNTAIN (WYDOT).
May 19, 5:50 AM MDTNON-TSTM WND GST 583 Ese Elk Mountain, WYMESONET STATION WY20 2.5 SE ELK MOUNTAIN (WYDOT).
May 19, 6:42 AM MDTNON-TSTM WND GST 683 Ese Elk Mountain, WYMESONET STATION WY20 2.5 SE ELK MOUNTAIN (WYDOT).
May 19, 7:05 AM MDTNON-TSTM WND GST 604 W Laramie, WYASOS STATION KLAR LARAMIE AIRPORT - LAR.
May 19, 7:22 AM MDTNON-TSTM WND GST 621 Nnw Arlington, WYMESONET STATION KARL 0.6 NW ARLINGTON (WYDOT).
May 19, 7:32 AM MDTNON-TSTM WND GST 587 Ese Arlington, WYMESONET STATION WY24 6.9 E ARLINGTON (WYDOT).
May 19, 7:56 AM MDTNON-TSTM WND GST 593 Ese Elk Mountain, WYMESONET STATION WY20 2.5 SE ELK MOUNTAIN (WYDOT).
May 19, 7:56 AM MDTNON-TSTM WND GST 605 Nw Arlington, WYMESONET STATION WY21 5.5 NW ARLINGTON (WYDOT).
May 19, 8:06 AM MDTNON-TSTM WND GST 643 Ese Elk Mountain, WYMESONET STATION WY20 2.5 SE ELK MOUNTAIN (WYDOT).
May 19, 8:12 AM MDTNON-TSTM WND GST 6111 Se Arlington, WYMESONET STATION WY25 10.7 SE ARLINGTON (WYDOT).
May 19, 8:36 AM MDTNON-TSTM WND GST 581 Nnw Arlington, WYMESONET STATION KARL 0.6 NW ARLINGTON (WYDOT).
May 19, 8:42 AM MDTNON-TSTM WND GST 635 Nw Arlington, WYMESONET STATION WY21 5.5 NW ARLINGTON (WYDOT).
May 19, 8:44 AM MDTNON-TSTM WND GST 6311 Sse Garrett, WYMESONET STATION DODW4 11 SSE GARRETT - DODGE CREEK RAWS - DOD.
May 19, 8:56 AM MDTNON-TSTM WND GST 647 Ese Arlington, WYMESONET STATION WY24 6.9 E ARLINGTON (WYDOT).
May 19, 9:11 AM MDTNON-TSTM WND GST 73Rock River, WYMESONET STATION UR345 ROCK RIVER (UPR).
May 19, 9:24 AM MDTNON-TSTM WND GST 632 Wnw Buford, WYMESONET STATION UR535 SHERWS.
May 19, 9:29 AM MDTNON-TSTM WND GST 655 N Rock River, WYMESONET STATION UP263 4.8 N ROCK RIVER (UPR).
May 19, 9:32 AM MDTNON-TSTM WND GST 6213 Ne Centennial, WYMESONET STATION WY26 12.6 NE CENTENNIAL (WYDOT).
May 19, 9:36 AM MDTNON-TSTM WND GST 6210 Ssw Hanna, WYMESONET STATION WY16 10.5 SW HANNA (WYDOT).
May 19, 9:39 AM MDTNON-TSTM WND GST 622 Ne Rawlins, WYASOS STATION KRWL 1 ENE RAWLINS.
May 19, 9:42 AM MDTNON-TSTM WND GST 595 Nw Arlington, WYMESONET STATION WY21 5.5 NW ARLINGTON (WYDOT).
May 19, 9:42 AM MDTNON-TSTM WND GST 621 Nnw Arlington, WYMESONET STATION KARL 0.6 NW ARLINGTON (WYDOT).
May 19, 9:42 AM MDTNON-TSTM WND GST 627 Nw Elk Mountain, WYMESONET STATION WY18 HALLECK RIDGE (WYDOT).
May 19, 9:42 AM MDTNON-TSTM WND GST 633 Ese Elk Mountain, WYMESONET STATION WY20 2.5 SE ELK MOUNTAIN (WYDOT).
May 19, 9:42 AM MDTNON-TSTM WND GST 667 Ese Arlington, WYMESONET STATION WY24 6.9 E ARLINGTON (WYDOT).
May 19, 9:44 AM MDTNON-TSTM WND GST 6711 Sse Garrett, WYMESONET STATION DODW4 11 SSE GARRETT - DODGE CREEK RAWS - DOD.
May 19, 9:48 AM MDTNON-TSTM WND GST 692 Wnw Centennial, WYMESONET STATION FW6033 CENTENNIAL.
May 19, 9:55 AM MDTNON-TSTM WND GST 623 N Douglas, WYASOS STATION KDGW DOUGLAS AIRPORT - DGW.
May 19, 10:01 AM MDTNON-TSTM WND GST 74Rock River, WYMESONET STATION UR345 ROCK RIVER (UPR).
May 19, 10:08 AM MDTNON-TSTM WND GST 722 Wnw Centennial, WYMESONET STATION FW6033 CENTENNIAL.
May 19, 10:10 AM MDTNON-TSTM WND GST 584 Nw Elk Mountain, WYAWOS STATION KEHY 3 NW ELK MTN - EHY (AWOS).
May 19, 10:12 AM MDTNON-TSTM WND GST 642 Wnw Buford, WYMESONET STATION UR535 SHERWS.
May 19, 10:16 AM MDTNON-TSTM WND GST 661 Ese Sinclair, WYMESONET STATION WY14 1.5 E SINCLAIR (WYDOT).
May 19, 10:18 AM MDTNON-TSTM WND GST 642 Ne Rawlins, WYASOS STATION KRWL 1 ENE RAWLINS.
May 19, 10:19 AM MDTNON-TSTM WND GST 609 W Rawlins, WYMESONET STATION UP251 9.3 W RAWLINS (UPR).
May 19, 10:21 AM MDTNON-TSTM WND GST 602 Ese Medicine Bow, WYMESONET STATION UP087 2.2 E MEDICINE BOW (UPR).
May 19, 10:26 AM MDTNON-TSTM WND GST 607 Nw Elk Mountain, WYMESONET STATION WY18 HALLECK RIDGE (WYDOT).
May 19, 10:36 AM MDTNON-TSTM WND GST 6811 Se Arlington, WYMESONET STATION WY25 10.7 SE ARLINGTON (WYDOT).
May 19, 10:39 AM MDTNON-TSTM WND GST 655 N Rock River, WYMESONET STATION UP263 4.8 N ROCK RIVER (UPR).
May 19, 10:42 AM MDTNON-TSTM WND GST 603 Ese Elk Mountain, WYMESONET STATION WY20 2.5 SE ELK MOUNTAIN (WYDOT).
May 19, 10:42 AM MDTNON-TSTM WND GST 621 Nnw Arlington, WYMESONET STATION KARL 0.6 NW ARLINGTON (WYDOT).
May 19, 10:42 AM MDTNON-TSTM WND GST 767 Ese Arlington, WYMESONET STATION WY24 6.9 E ARLINGTON (WYDOT).
May 19, 10:44 AM MDTNON-TSTM WND GST 6611 Sse Garrett, WYMESONET STATION DODW4 11 SSE GARRETT - DODGE CREEK RAWS - DOD.
May 19, 10:50 AM MDTNON-TSTM WND GST 634 W Muddy Gap, WYCAMP CREEK RAWS.
May 19, 10:52 AM MDTNON-TSTM WND GST 6313 Ne Centennial, WYMESONET STATION WY26 12.6 NE CENTENNIAL (WYDOT).
May 19, 10:52 AM MDTNON-TSTM WND GST 653 Nw Elk Mountain, WYMESONET STATION WY19 2.9 NW ELK MOUNTAIN (WYDOT).
May 19, 11:02 AM MDTNON-TSTM WND GST 5813 Ne Centennial, WYMESONET STATION WY26 12.6 NE CENTENNIAL (WYDOT).
May 19, 11:02 AM MDTNON-TSTM WND GST 637 Nw Elk Mountain, WYMESONET STATION WY18 HALLECK RIDGE (WYDOT).
May 19, 11:09 AM MDTNON-TSTM WND GST 615 N Rock River, WYMESONET STATION UP263 4.8 N ROCK RIVER (UPR).
May 19, 11:12 AM MDTNON-TSTM WND GST 621 Ese Sinclair, WYMESONET STATION WY14 1.5 E SINCLAIR (WYDOT).
May 19, 11:13 AM MDTNON-TSTM WND GST 632 Ne Rawlins, WYASOS STATION KRWL 1 ENE RAWLINS.
May 19, 11:32 AM MDTNON-TSTM WND GST 641 Nnw Arlington, WYMESONET STATION KARL 0.6 NW ARLINGTON (WYDOT).
May 19, 11:32 AM MDTNON-TSTM WND GST 78Rock River, WYMESONET STATION UR345 ROCK RIVER (UPR).
May 19, 11:36 AM MDTNON-TSTM WND GST 747 Ese Arlington, WYMESONET STATION WY24 6.9 E ARLINGTON (WYDOT).
May 19, 11:46 AM MDTNON-TSTM WND GST 5810 Ssw Hanna, WYMESONET STATION WY16 10.5 SW HANNA (WYDOT).
May 19, 11:48 AM MDTNON-TSTM WND GST 672 Wnw Centennial, WYMESONET STATION FW6033 CENTENNIAL.
May 19, 11:49 AM MDTNON-TSTM WND GST 629 W Rawlins, WYMESONET STATION UP251 9.3 W RAWLINS (UPR).
May 19, 11:56 AM MDTNON-TSTM WND GST 592 E Arlington, WYMESONET STATION WY23 1.6 E ARLINGTON (WYDOT).
May 19, 11:56 AM MDTNON-TSTM WND GST 6011 Se Arlington, WYMESONET STATION WY25 10.7 SE ARLINGTON (WYDOT).

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 8.3 hours before the alert went out and 264 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Riverton, WY at 12:00Z on 2022-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2022-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
5263 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

380 
WWUS75 KCYS 182016
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
216 PM MDT Wed May 18 2022

WYZ106-110-191215-
/O.UPG.KCYS.HW.A.0037.220519T0900Z-220519T2100Z/
/O.NEW.KCYS.HW.W.0038.220519T0900Z-220519T2100Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-
Including the cities of Bordeaux, Arlington, and Elk Mountain
216 PM MDT Wed May 18 2022

...HIGH WIND WARNING IN EFFECT FROM 3 AM TO 3 PM MDT THURSDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 60 mph 
  possible. 

* WHERE...Central Laramie Range and Southwest Platte County and 
  North Snowy Range Foothills. 

* WHEN...From late tonight through Thursday afternoon.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight and high profile vehicles, including
  campers and tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. A High Wind Warning means a hazardous high wind event 
is expected or occurring. Sustained wind speeds of at least 40 mph
or gusts of 58 mph or more can lead to property damage.

&&

$$

WYZ116-117-191215-
/O.UPG.KCYS.HW.A.0037.220519T0900Z-220519T2100Z/
/O.NEW.KCYS.HW.W.0038.220519T0900Z-220519T2100Z/
South Laramie Range-South Laramie Range Foothills-
Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker,
Federal, and Horse Creek
216 PM MDT Wed May 18 2022

...HIGH WIND WARNING IN EFFECT FROM 3 AM TO 3 PM MDT THURSDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 60 mph 
  possible. 

* WHERE...South Laramie Range and South Laramie Range Foothills.

* WHEN...From late tonight through Thursday afternoon.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight and high profile vehicles, including
  campers and tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. A High Wind Warning means a hazardous high wind event 
is expected or occurring. Sustained wind speeds of at least 40 mph
or gusts of 58 mph or more can lead to property damage.

&&

$$
5 follow-up statements
280 
WWUS75 KCYS 190904
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
304 AM MDT Thu May 19 2022

WYZ106-110-200000-
/O.NEW.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
/O.CON.KCYS.HW.W.0038.000000T0000Z-220519T2100Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-
Including the cities of Bordeaux, Arlington, and Elk Mountain
304 AM MDT Thu May 19 2022

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
...HARD FREEZE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY MORNING...

* WHAT...For the High Wind Warning, west winds 30 to 40 mph with 
  gusts up to 60 mph expected. For the Hard Freeze Watch, sub- 
  freezing temperatures as low as 24 possible.

* WHERE...Central Laramie Range and Southwest Platte County and 
  North Snowy Range Foothills.

* WHEN...For the High Wind Warning, until 3 PM MDT this 
  afternoon. For the Hard Freeze Watch, from Friday evening 
  through Saturday morning.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles. Frost and 
  freeze conditions could kill crops, other sensitive vegetation 
  and possibly damage unprotected outdoor plumbing.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

WYZ116-117-200000-
/O.NEW.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
/O.CON.KCYS.HW.W.0038.000000T0000Z-220519T2100Z/
South Laramie Range-South Laramie Range Foothills-
Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker,
Federal, and Horse Creek
304 AM MDT Thu May 19 2022

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
...HARD FREEZE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY MORNING...

* WHAT...For the High Wind Warning, west winds 30 to 40 mph with 
  gusts up to 55 mph expected. For the Hard Freeze Watch, sub- 
  freezing temperatures as low as 22 possible.

* WHERE...South Laramie Range and South Laramie Range Foothills.

* WHEN...For the High Wind Warning, until 3 PM MDT this 
  afternoon. For the Hard Freeze Watch, from Friday evening 
  through Saturday morning.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles. Frost and 
  freeze conditions could kill crops, other sensitive vegetation 
  and possibly damage unprotected outdoor plumbing.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NEZ002-054-095-WYZ101-102-104-105-107>109-111-113-115-118-119-
200000-
/O.NEW.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Dawes County-Kimball County-Northern Sioux County-
Converse County Lower Elevations-Niobrara County-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-East Platte County-
Goshen County-Central Carbon County-Southwest Carbon County-
Upper North Platte River Basin-Laramie Valley-
Central Laramie County-East Laramie County-
Including the cities of Chadron, Chadron St Park, Kimball, 
Harrison, Douglas, Glenrock, Bill, Deer Creek, Lusk, Redbird, 
Seminoe Dam, Medicine Bow, Shirley Basin, Wheatland, Guernsey, 
Torrington, Rawlins, Baggs, Saratoga, Encampment, Laramie, 
Bosler, Cheyenne, and Pine Bluffs
304 AM MDT Thu May 19 2022

...HARD FREEZE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY MORNING...

* WHAT...Sub-freezing temperatures as low as 25 possible.

* WHERE...Portions of east central, south central and southeast 
  Wyoming and panhandle Nebraska.

* WHEN...From Friday evening through Saturday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

LK
177 
WWUS75 KCYS 191524
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
924 AM MDT Thu May 19 2022

WYZ101-104-105-107-109-111-113-115-118-200300-
/O.EXB.KCYS.HW.W.0038.000000T0000Z-220520T0300Z/
/O.CON.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Converse County Lower Elevations-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-East Platte County-Central Carbon County-
Southwest Carbon County-Upper North Platte River Basin-
Laramie Valley-Central Laramie County-
Including the cities of Douglas, Glenrock, Bill, Deer Creek, 
Seminoe Dam, Medicine Bow, Shirley Basin, Wheatland, Guernsey, 
Rawlins, Baggs, Saratoga, Encampment, Laramie, Bosler, 
and Cheyenne
924 AM MDT Thu May 19 2022

...HIGH WIND WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...
...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY MORNING...

* WHAT...For the High Wind Warning, west winds 35 to 45 MPH with
  gusts up to 65 MPH expected. For the Hard Freeze Watch, sub-
  freezing temperatures as low as 20 degrees possible. 

* WHERE...Much of southeast Wyoming along and west of Interstate
  25. This includes but is not limited Cheyenne, Wheatland,
  Douglas, Laramie, Rawlins, and Saratoga. 

* WHEN...High Wind Warning until 9 PM MDT this evening. Hard
  Freeze Watch from Friday evening through Saturday morning.

* IMPACTS...Wind impacts mainly to transportation. Strong cross
  winds will be hazardous to light weight and high profile
  vehicles, including campers and tractor trailers. Frost and
  freeze conditions could kill sensitive vegetation and possibly
  damage unprotected outdoor plumbing. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts of
58 mph or more can lead to property damage.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

WYZ106-110-116-117-200300-
/O.EXT.KCYS.HW.W.0038.000000T0000Z-220520T0300Z/
/O.CON.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
South Laramie Range Foothills-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
and Horse Creek
924 AM MDT Thu May 19 2022

...HIGH WIND WARNING NOW IN EFFECT UNTIL 9 PM MDT THIS EVENING...
...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY MORNING...

* WHAT...For the High Wind Warning, west winds 35 to 45 MPH with
  gusts up to 65 MPH expected. For the Hard Freeze Watch, sub-
  freezing temperatures as low as 20 degrees possible. 

* WHERE...Much of southeast Wyoming along and west of Interstate
  25. This includes but is not limited Cheyenne, Wheatland,
  Douglas, Laramie, Rawlins, and Saratoga. 

* WHEN...High Wind Warning until 9 PM MDT this evening. Hard
  Freeze Watch from Friday evening through Saturday morning.

* IMPACTS...Wind impacts mainly to transportation. Strong cross
  winds will be hazardous to light weight and high profile
  vehicles, including campers and tractor trailers. Frost and
  freeze conditions could kill sensitive vegetation and possibly
  damage unprotected outdoor plumbing. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts of
58 mph or more can lead to property damage.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NEZ002-054-095-WYZ102-108-119-200300-
/O.CON.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Dawes County-Kimball County-Northern Sioux County-Niobrara County-
Goshen County-East Laramie County-
Including the cities of Chadron, Chadron St Park, Kimball, 
Harrison, Lusk, Redbird, Torrington, and Pine Bluffs
924 AM MDT Thu May 19 2022

...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY MORNING...

* WHAT...Sub-freezing temperatures as low as 25 possible.

* WHERE...Portions of east central, south central and southeast 
  Wyoming and panhandle Nebraska.

* WHEN...From Friday evening through Saturday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CLH
367 
WWUS75 KCYS 191804
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
1204 PM MDT Thu May 19 2022

WYZ101-200300-
/O.CAN.KCYS.HW.W.0038.000000T0000Z-220520T0300Z/
/O.CON.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Converse County Lower Elevations-
Including the cities of Douglas, Glenrock, Bill, and Deer Creek
1204 PM MDT Thu May 19 2022

...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY MORNING...
...HIGH WIND WARNING IS CANCELLED...

* WHAT...Sub-freezing temperatures as low as 20 degrees possible.

* WHERE...Converse County Lower Elevations.

* WHEN...From Friday evening through Saturday morning.

* IMPACTS...Frost and freeze conditions could kill sensitive 
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

WYZ104>107-109>111-113-115>118-200300-
/O.CON.KCYS.HW.W.0038.000000T0000Z-220520T0300Z/
/O.CON.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Laramie Range and Southwest Platte County-
East Platte County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Upper North Platte River Basin-Laramie Valley-South Laramie Range-
South Laramie Range Foothills-Central Laramie County-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Bordeaux, Wheatland, Guernsey, Rawlins, Arlington, Elk Mountain, 
Baggs, Saratoga, Encampment, Laramie, Bosler, Buford, 
Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, 
and Cheyenne
1204 PM MDT Thu May 19 2022

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...
...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY MORNING...

* WHAT...For the High Wind Warning, west winds 35 to 45 MPH with 
  gusts up to 65 MPH expected. For the Hard Freeze Watch, sub- 
  freezing temperatures as low as 20 degrees possible.

* WHERE...Much of southeast Wyoming along and west of Interstate 
  25. This includes but is not limited Cheyenne, Wheatland, 
  Douglas, Laramie, Rawlins, and Saratoga.

* WHEN...High Wind Warning until 9 PM MDT this evening. Hard 
  Freeze Watch from Friday evening through Saturday morning.

* IMPACTS...Wind impacts mainly to transportation. Strong cross 
  winds will be hazardous to light weight and high profile 
  vehicles, including campers and tractor trailers. Frost and 
  freeze conditions could kill sensitive vegetation and possibly 
  damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts of
58 mph or more can lead to property damage.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NEZ002-054-095-WYZ102-108-119-200300-
/O.CON.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Dawes County-Kimball County-Northern Sioux County-Niobrara County-
Goshen County-East Laramie County-
Including the cities of Chadron, Chadron St Park, Kimball, 
Harrison, Lusk, Redbird, Torrington, and Pine Bluffs
1204 PM MDT Thu May 19 2022

...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY MORNING...

* WHAT...Sub-freezing temperatures as low as 25 possible.

* WHERE...Portions of east central, south central and southeast 
  Wyoming and panhandle Nebraska.

* WHEN...From Friday evening through Saturday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CLH
580 
WWUS75 KCYS 192058
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
258 PM MDT Thu May 19 2022

WYZ104>107-109>111-113-115>118-201200-
/O.CON.KCYS.HW.W.0038.000000T0000Z-220520T0300Z/
/O.CON.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Laramie Range and Southwest Platte County-
East Platte County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Upper North Platte River Basin-Laramie Valley-South Laramie Range-
South Laramie Range Foothills-Central Laramie County-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Bordeaux, Wheatland, Guernsey, Rawlins, Arlington, Elk Mountain, 
Baggs, Saratoga, Encampment, Laramie, Bosler, Buford, 
Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, 
and Cheyenne
258 PM MDT Thu May 19 2022

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...
...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY MORNING...

* WHAT...For the High Wind Warning, west winds 35 to 45 MPH with
  gusts up to 70 MPH expected. For the Hard Freeze Watch, sub- 
  freezing temperatures as low as 20 degrees possible.

* WHERE...Much of southeast Wyoming along and west of Interstate
  25. This includes Cheyenne, Laramie, Rawlins, and Saratoga. 

* WHEN...High Wind Warning until 9 PM MDT this evening. Hard 
  Freeze Watch from Friday evening through Saturday morning.

* IMPACTS...Wind impacts mainly to transportation. Strong cross 
  winds will be hazardous to light weight and high profile 
  vehicles, including campers and tractor trailers. Frost and 
  freeze conditions could kill sensitive vegetation and possibly 
  damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts of
58 mph or more can lead to property damage.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NEZ002-054-095-WYZ101-102-108-119-201200-
/O.CON.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Dawes County-Kimball County-Northern Sioux County-
Converse County Lower Elevations-Niobrara County-Goshen County-
East Laramie County-
Including the cities of Chadron, Chadron St Park, Kimball, 
Harrison, Douglas, Glenrock, Bill, Deer Creek, Lusk, Redbird, 
Torrington, and Pine Bluffs
258 PM MDT Thu May 19 2022

...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY MORNING...

* WHAT...Sub-freezing temperatures as low as 25 possible.

* WHERE...Portions of southeast Wyoming and the western Nebraska
  Panhandle. 

* WHEN...Friday evening through Saturday morning. 

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CLH
862 
WWUS75 KCYS 200100
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
700 PM MDT Thu May 19 2022

WYZ104>107-109>111-113-115>118-201200-
/O.CAN.KCYS.HW.W.0038.000000T0000Z-220520T0300Z/
/O.CON.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Laramie Range and Southwest Platte County-
East Platte County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Upper North Platte River Basin-Laramie Valley-South Laramie Range-
South Laramie Range Foothills-Central Laramie County-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Bordeaux, Wheatland, Guernsey, Rawlins, Arlington, Elk Mountain, 
Baggs, Saratoga, Encampment, Laramie, Bosler, Buford, 
Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, 
and Cheyenne
700 PM MDT Thu May 19 2022

...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY MORNING...
...HIGH WIND WARNING IS CANCELLED...

* WHAT...Sub-freezing temperatures as low as 20 degrees possible.

* WHERE...Portions of South Central and Southeast Wyoming. This 
  includes Cheyenne, Laramie, Rawlins and Saratoga.

* WHEN...Friday evening through Saturday morning.

* IMPACTS...Frost and freeze conditions could kill sensitive 
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NEZ002-054-095-WYZ101-102-108-119-201200-
/O.CON.KCYS.HZ.A.0001.220521T0300Z-220521T1500Z/
Dawes County-Kimball County-Northern Sioux County-
Converse County Lower Elevations-Niobrara County-Goshen County-
East Laramie County-
Including the cities of Chadron, Chadron St Park, Kimball, 
Harrison, Douglas, Glenrock, Bill, Deer Creek, Lusk, Redbird, 
Torrington, and Pine Bluffs
700 PM MDT Thu May 19 2022

...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY MORNING...

* WHAT...Sub-freezing temperatures as low as 25 degrees possible.

* WHERE...Portions of Southeast Wyoming and the Western Nebraska
  Panhandle. This includes Chadron, Douglas, Kimball, Pine Bluffs,
  and Torrington.

* WHEN...Friday evening through Saturday morning.

* IMPACTS...Frost and freeze conditions could kill sensitive 
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

What forecasters said that day

The local office's own words before this high wind warning went out, 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 this high wind warning went out at May 18, 12:18 PM MDT, 1 hour 58 minutes earlier.

Area forecast discussion, May 18, 12:18 PM MDT, 1 hour 58 minutes before
Area Forecast Discussion
National Weather Service Cheyenne WY
1218 PM MDT Wed May 18 2022

.UPDATE...
Issued at 1211 PM MDT Wed May 18 2022

Please see updated 18Z aviation discussion below.

&&

.SHORT TERM...(Today through Friday)
Issued at 419 AM MDT Wed May 18 2022

KEY MESSAGES:

1) High Wind Watches in effect Thursday morning for possible high
winds ahead of the strong frontal passage. Wind gusts 50 to 60
mph possible in areas along and west of the Laramie Range.

2) Strong cold front moving through Thursday afternoon and evening
bringing much colder temperatures, as well as rain/snow chances to
the majority of southeast Wyoming and portions of the Nebraska
panhandle. Snow accumulations T to 3 inches possible at lower
elevations in southeast Wyoming. A Winter Weather Advisory in
effect for the Sierra Madre Range for 5 to 7 inches likely from
early Friday morning through Saturday morning. Winter Storm
Watches in effect for 5 to 11 inches possible in the Snowy Range
and 4 to 9 inches possible in the South Laramie Range.

Discussion: There is not much to say for the forecast today, it
will be hot, dry, and breezy across southeast Wyoming and the
Nebraska panhandle. Enjoy it while you can though because coming
Thursday is a drastic pattern change beginning with a strong
mountain wave signal, as well as a strong pressure gradient that
will likely result in wind gusts 50 to 60 mph in wind prone areas
and northern portions of Carbon and Albany counties if it holds.

Following these high winds is a drastic temperature drop and
widespread precipitation. The precipitation is going to be the
hardest part to nail down on this event due to it being a late
season snowfall event. Models right now are showing the cold front
quickly pushing to near the Wyoming/Colorado border, then stalling
through Friday. Where areas on the warm side of the front will
receive rain, and the cold side of the front will receive snow.
The trickiest part is that boundary seems to currently be almost
directly over Cheyenne, Wyoming. If the boundary stays south of
the WY/CO border, then southeast Wyoming will be in the cold side
of the front and we will likely receive the high end of the
currently forecasted amounts. However, if that boundary wavers
north of the WY/CO border, putting areas like Interstate 80 on the
warm side of the front, then those areas will receive more rain
and less snowfall. The Nebraska panhandle will primarily receive
rain through this event with areas near the Wyoming/Nebraska
border receiving a little snow, but it will likely not accumulate.
Due to this being such a late snowfall event, areas where the
snowfall will likely accumulated will be on raised and grassy
surfaces. Potential for travel impacts as well, due to falling and
melting snow. All impacts will be highly variable on the timing
and placement of the cold frontal passage.

.LONG TERM...(Saturday through Tuesday)
Issued at 419 AM MDT Wed May 18 2022

Weather Highlights:

1) Snow chances remain across Wyoming with a wintry mix possible
across the Nebraska Panhandle on Saturday.

2) Unseasonably cold overnight lows Saturday night may create some
widespread frost across much of central and eastern Wyoming.

3) Gradually warming up next week with precipitation chances on
Monday.

Overview: The most impactful weather day in the long term will be
Saturday as a slow moving, potent low pressure system will bring
accumulating snowfall to the Sierra Madre and Snowy Mountain ranges
and across most central and eastern Wyoming valleys. The main trough
axis by Saturday will be pushing through western Nebraska with the
bulk of the higher QPF superimposed with the upper level jet.
Precipitation chances will decrease west to east and transition from
all snow to a rain/snow mix across eastern Wyoming. By the time the
center of the trough moves overhead, most of the precipitation will
be ending just as the coldest air beings to advect into the region.
This may pose a frost threat for some locations Saturday night into
Sunday morning. Temperatures will slowly begin to rebound next week.

Discussion: Models are in good agreement with the slow trajectory of
the upper level trough passing through the region. Leading up to the
beginning of the long term, a few winter weather highlights have
been issued beginning Thursday night and continuing into Saturday
morning. Widespread precipitation chances will be ongoing Saturday
morning in the from all snow for much of Wyoming and a wintry mix
across the Nebraska Panhandle. The transition zone between frozen
and mix will be the main forecast challenge, especially across the
I25 corridor. Models show frontal zone and draped right along the I-
25 corridor. Snow totals were adjusted to account for the potential
of a sooner transition to more of a mix. Even with the slightest
downward trend in snow total accumulations. Laramie county and
southern Platte county could see snow totals in the 2-3" range. With
the departure of the leading edge of the trough axis precipitation
chances come to end and a surge of -10C 700mb temperatures advect
into north and eastern Wyoming. This cold air intrusion will allow
minimum temperatures to drop into the upper 20s across eastern
Wyoming with temperatures just below freezing across the Nebraska
Panhandle. Some localized frost concerns may materialize in some
locations Sunday morning.

After a cold morning, increasing heights slowly begin to build from
the west with moderating temperatures both at the surface and at the
700mb level. This overall trend in slow moderating temperatures
will continue into next week as temperatures rebound to seasonal
normals by Monday. The next chance for precipitation looks to be
Monday morning as a quick moving shortwave trough passes through
but, models are beginning to hint at a more potent storm system and
widespread precipitation chances impacting the area on Tuesday.

&&

.AVIATION...(For the 18Z TAFS through 18Z Thursday afternoon)
Issued at 1211 PM MDT Wed May 18 2022

VFR and limited aviation impacts over the next 24 hours with high
passing clouds. Only caveat would be the gusty surface winds this
afternoon and even higher surface winds Thursday at all sites.
This afternoon, sustained winds of 15 knots are likely with gusts
of 25 to 30 knots at times. Winds will remain elevated through the
overnight and increase further after 15Z Thursday. Winds will
increase to at least 35 to 45 knots at times for KRWL/KLAR/KCYS
and about 10 knots lower at all other TAF sites ahead of a strong
cold front that will move through Thursday evening. Low-lvl
turbulence will be possible Thursday. Greater aviation impacts
will occur late Thursday night and through all of Friday into
early Saturday with snow, lower ceilings, and reduced visibility
for at least Wyoming sites.

&&

.FIRE WEATHER...
Issued at 419 AM MDT Wed May 18 2022

Very dry conditions today with minimum RHs near 10 percent and wind
gusts up to 25 mph possible across southeast Wyoming, however due
to recent and upcoming moisture, fire weather concerns are low.
Strong winds expected Thursday ahead of the strong cold front,
especially along and west of the Laramie Range. Precipitation and
much cooler temperatures expected Thursday night through Friday.

Refer to the short term forecast discussion for more details on
upcoming moisture.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...High Wind Watch from late tonight through Thursday afternoon for
     WYZ106-110-116-117.

     Winter Storm Watch from late Thursday night through Saturday
     morning for WYZ114-116-117.

     Winter Weather Advisory from midnight Thursday night to noon MDT
     Saturday for WYZ112.

NE...None.
&&

UPDATE...JSA
SHORT TERM...LK
LONG TERM...AW
AVIATION...JSA
FIRE WEATHER...LK

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 17, 6:44 PM MDTSpecial Weather StatementCYSNiobrara46 min
May 18, 3:46 AM MDTHigh Wind WatchCYSAlbany, Carbon, Laramie, Platte11 hr
May 18, 3:52 AM MDTWinter Storm WatchCYSAlbany, Carbon, Laramie23 hr
May 18, 3:52 AM MDTWinter Weather AdvisoryCYSAlbany, Carbon65 hr

Nearby

High Wind Warnings in Wyoming, 2022Every high wind warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.