A non-thunderstorm wind gust of 62 mph was measured near Firstview, CO during the morning hours.
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The episode as NWS GLD wrote it up.
A non-thunderstorm wind gust of 62 mph was measured near Firstview, CO during the morning hours.
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 Goodland, KS wrote its last area forecast discussion before the first event at Jun 18, 4:25 AM MST, 1 hour earlier.
Area Forecast Discussion National Weather Service Goodland KS 525 AM MDT Thu Jun 18 2020 .SHORT TERM...(Today through Saturday) Issued at 215 AM MDT Thu Jun 18 2020 Cold front is moving through northwest part of the forecast area early this morning and will continue to push southeast, clearing the area by 15-18z. Have seen wind gusts of 40-45kts behind the front, which will continue through late morning. Expecting increasing clouds but no precipitation with the front. High temperatures today will be much cooler than they have been in quite some time, upper 70s to lower 80s, which is slightly below normal. Tonight and Friday, shortwave trough will slowly emerge out of the central Rockies bringing a chance of showers and isolated thunderstorms. Tonight, best chances will be after midnight south of Interstate 70. NAM and to a lesser extent the HRRRx break out convection late along a Hill City to Leoti line, with locally heavy rainfall possible. Appears to be some low level jet enhancement in this area. Light showers will linger through Friday morning, then pick up again Friday afternoon and especially Friday night as the main trough axis finally moves across the area. Friday night appears to be the best chances for precipitation across the entire area. QPF bullseyes in the global models Friday night range from 1 to 1.50 inches, so again might see locally heavy rainfall. Precipitation will end late Friday night from west to east. Clouds and precipitation will keep temperatures in the 70s for high temperatures on Friday. Saturday should be partly cloudy and mostly dry, with high temperatures warming into the lower 80s. NAM does show convection developing in the afternoon/evening, apparently in response to a weak shortwave in the northwest flow. NAM only model showing this at the present time, so confidence is low. Instability not particularly impressive either, even in the NAM, with best instability across south central Kansas Saturday afternoon. POPs may be overdone on Saturday, but for the sake of consistency will have some low chance. .LONG TERM...(Sunday through Thursday) Issued at 233 AM MDT Thu Jun 18 2020 The latest extended guidance has a building upper ridge over the western portion of the country, giving the CWA zonal flow to end off the upcoming weekend with a slow trend to NW flow by Wed/Thu of next week. There is a cutoff upper low over the Upper Plains/Great Lks Region that has its eastward movement blocked by a ridge over the eastern seaboard. As the week progresses, the low will move eastward in tandem with the building/amplification of the ridge over the west. The lessening of the downslope conditions aloft will allow for high temps to trend towards near to above normal thru the period. Aiding in the decrease in temps will be several shortwaves and their associated surface features that will move across the CWA, bringing the chance for rw/trw. Positioning of the aforementioned upper features does differ in latest GFS/ECMWF, so a general range for pops around 20 to almost 40 percent looks warranted, especially this far out in the forecast. PW values are around an inch could support locally heavy rainfall for any storms, especially next week. RH values in the afternoon/early evening hours only drop into the 16- 20 percent range for western locales Sun/Mon, so not thinking there will be fire wx concerns at this time. Any expected shift in timing/amounts/etc of precip could affect this and may need to be monitored going into the weekend. For winds, as of now the area will be looking at 20-25 mph at best but locally higher amounts possible in the vicinity of any convection. For temps, thanks to the shift in the upper flow from W to NW as ridge builds over the west, the combination of the slightly cooler air on NW flow and the clouds/precip forecasted, will be looking for highs to peak on Sunday in the upper 80s to lower 90s, and then to trend lower by next Wed/Thu with lower to mid 80s. Overnight lows will range around the mid 50s to around 60F, warmest east. && .AVIATION...(For the 12Z TAFS through 12Z Friday morning) Issued at 521 AM MDT Thu Jun 18 2020 Cold front currently makings its way through both KGLD and KMCK with surface winds becoming north and increasing to 15-20kts. MVFR cloud deck has developed immediately behind the front and may persist through about 18z before scattering out. North winds will continue to be breezy through the afternoon, diminishing around 00-01z tonight. Overnight, scattered showers and perhaps an isolated thunderstorm will develop after 06z, but confidence too low to mention in the TAF at this time. && .GLD WATCHES/WARNINGS/ADVISORIES... KS...NONE. CO...NONE. NE...NONE. && SHORT TERM...024 LONG TERM...JN AVIATION...024
Hazardous Weather Outlook National Weather Service Goodland KS 253 AM MDT Thu Jun 18 2020 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-190900- Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins- Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove- Greeley-Wichita-Dundy-Hitchcock-Red Willow- 253 AM MDT Thu Jun 18 2020 /353 AM CDT Thu Jun 18 2020/ This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...TODAY AND TONIGHT... North winds will gust up to 50 mph early this morning behind a cold front. Locally heavy rainfall will be possible after midnight tonight in portions of northwest Kansas, mainly south of Interstate 70. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... Locally heavy rainfall will be possible Friday night across the entire area. There is a marginal risk of severe thunderstorms on Saturday across portions of northeast Colorado and northwest Kansas. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
Mesonet station recorded a non-thunderstorm wind gust of 62 mph 3.7 miles east of Firstview, CO.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2020Every state in 2020This day in weather historyWarnings in Colorado, June 2020
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: 904278.