Alert archive / Wyoming / High Wind Watches in 2018
High Wind Watch 27, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind watch at Apr 11, 2018, 2:52 PM MDT for 4 counties in Wyoming. It took effect at Apr 12, 2018, 10:00 AM MDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Apr 11, 2018, 2:52 PM MDT (20:52 UTC)
- In effect from
- Apr 12, 2018, 10:00 AM MDT
- Expired
- Apr 12, 2018, 4:10 AM MDT
- In force
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 88 km from the middle of the area, began a volume at 20:51 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.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 8.9 hours before the alert went out and 278 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2239 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 142 m²/s²
- 0-3 km storm-relative helicity
- 304 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this high wind watch 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 watch went out at Apr 11, 2:48 PM MDT, 4 minutes earlier.
Area forecast discussion, Apr 11, 2:48 PM MDT, 4 minutes before
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</html>Hazardous weather outlook, Apr 11, 3:05 AM MDT, 11 hours 47 minutes before
Hazardous Weather Outlook National Weather Service Cheyenne WY 305 AM MDT Wed Apr 11 2018 WYZ101>119-120915- Converse County Lower Elevations-Niobrara County- North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- East Platte County-Goshen County-Central Carbon County- North Snowy Range Foothills-Southwest Carbon County- Sierra Madre Range-Upper North Platte River Basin-Snowy Range- Laramie Valley-South Laramie Range-South Laramie Range Foothills- Central Laramie County-East Laramie County- 305 AM MDT Wed Apr 11 2018 This hazardous weather outlook is for portions of east central Wyoming...south central Wyoming and southeast Wyoming. .DAY ONE...TODAY AND TONIGHT A High Wind Warning is in effect from 6 am to 1 pm today for Arlington, Bordeaux, the Southern Laramie Range and foothills for west winds of 30 to 40 mph with gusts over 60 mph. A Red Flag Warning is in effect from 11 am to 7 pm today for eastern Platte, Goshen, Central and Eastern Laramie Counties. Winds will gust 40 to 50 mph with sustained west winds of 20 to 35 mph. Humidities will range from 10 to 15 percent. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A strong Pacific low pressure system and cold front will bring gusty winds, much colder temperatures and accumulating snow late Thursday night through Friday evening. Significant accumulations are possible for Niobrara County where a Winter Storm Watch is in effect. .Spotter information statement... Spotter activation will not be needed. NEZ002-003-019>021-054-055-095-096-120915- Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne- North Sioux-South Sioux- 305 AM MDT Wed Apr 11 2018 This hazardous weather outlook is for portions of western Nebraska. .DAY ONE...TODAY AND TONIGHT A Red Flag Warning is in effect from 11 am to 7 pm today for the southern half of the Nebraska Panhandle. Winds will gust 40 to 45 mph with sustained west winds of 20 to 35 mph. Humidities will range from 10 to 15 percent. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A strong Pacific low pressure system and cold front will bring gusty winds, much colder temperatures and accumulating snow late Thursday night through Friday evening. Significant accumulations are possible for the northern Nebraska Panhandle where a Winter Storm Watch is in effect. .Spotter information statement... Spotter activation will not be needed. Rubin
In the hours before
Local storm report, Apr 11, 10:06 AM MDT, 4 hours 46 minutes before
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</html>Local storm report, Apr 11, 10:30 AM MDT, 4 hours 22 minutes before
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</html>Special weather statement, Apr 11, 11:24 AM MDT, 3 hours 28 minutes before
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</html>Local storm report, Apr 11, 11:26 AM MDT, 3 hours 26 minutes before
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</html>Local storm report, Apr 11, 11:57 AM MDT, 2 hours 55 minutes before
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</html>Local storm report, Apr 11, 2:47 PM MDT, 5 minutes before
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</html>The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 7:35 PM MDT | High Wind Warning | CYS | Albany, Carbon, Laramie, Platte | 19 hr |
| Apr 11, 2:39 AM MDT | Red Flag Warning | CYS | 16 hr |
Nearby
High Wind Watches in Wyoming, 2018Every high wind watch in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.