Alert archive / Colorado / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 236, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Jun 30, 2018, 5:11 PM MDT for Yuma County, Colorado. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 30, 2018, 5:11 PM MDT (23:11 UTC)
- Expired
- Jun 30, 2018, 6:00 PM MDT
- In force
- 49 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Yuma County, CO
The radar
The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 23:13 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 30, 5:09 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 11.2 hours before the alert went out and 70 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
- 189 J/kg
- Mixed-layer CIN
- -224 J/kg
- Mixed-layer LCL
- 806 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- -44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jun 30, 1:08 PM MDT, 4 hours 3 minutes earlier.
Area forecast discussion, Jun 30, 1:08 PM MDT, 4 hours 3 minutes before
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</html>Hazardous weather outlook, Jun 30, 3:37 PM MDT, 1 hour 34 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Goodland KS 337 PM MDT Sat Jun 30 2018 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-012145- Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins- Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove- Greeley-Wichita-Dundy-Hitchcock-Red Willow- 337 PM MDT Sat Jun 30 2018 /437 PM CDT Sat Jun 30 2018/ This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...THIS AFTERNOON AND TONIGHT... ...Enhanced Risk for Severe Thunderstorms this Evening... A line of thunderstorms will develop in eastern Colorado late this afternoon and track east across the Tri-State area this evening. The primary threat with these storms will be damaging wind gusts up to 80 mph and golf ball to tennis ball size hail. The threat for severe weather will be greatest between 6 pm and Midnight MDT. Areas along and north of Interstate 70 are most likely to be affected. Locally heavy rainfall and isolated flash flooding will also be possible. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH SATURDAY... Large hail and damaging winds may occur with thunderstorms Monday evening. .SPOTTER INFORMATION STATEMENT... Spotter activation is expected this evening. Vincent
In the hours before
Special weather statement, Jun 30, 4:46 PM MDT, 25 minutes before
Special Weather Statement National Weather Service Goodland KS 546 PM CDT SAT JUN 30 2018 KSZ003-015-302300- Sheridan KS-Decatur KS- 546 PM CDT SAT JUN 30 2018 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN SHERIDAN AND SOUTH CENTRAL DECATUR COUNTIES UNTIL 600 PM CDT... At 545 PM CDT, Doppler radar was tracking a strong thunderstorm 7 miles north of Hoxie, moving northeast at 15 mph. Dime size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Dresden and Leoville. PRECAUTIONARY/PREPAREDNESS ACTIONS... This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 3935 10039 3943 10060 3966 10051 3954 10020 TIME...MOT...LOC 2245Z 207DEG 12KT 3946 10046 024
Special weather statement, Jun 30, 5:02 PM MDT, 9 minutes before
Special Weather Statement National Weather Service Goodland KS 502 PM MDT SAT JUN 30 2018 COZ090-302315- Yuma County CO- 502 PM MDT SAT JUN 30 2018 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN YUMA COUNTY UNTIL 515 PM MDT... At 502 PM MDT, Doppler radar was tracking a strong thunderstorm 9 miles north of Cope, or 22 miles south of Yuma, moving east at 30 mph. Dime size hail will be possible with this storm. Locations impacted include... Abarr and Heartstrong. PRECAUTIONARY/PREPAREDNESS ACTIONS... This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 3991 10280 3995 10257 3968 10255 3970 10280 TIME...MOT...LOC 2302Z 266DEG 25KT 3981 10282 024
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 6:28 PM MDT | Severe Thunderstorm Warning | GLD | Sherman, Wallace | 62 min |
| Jun 29, 6:33 PM MDT | Special Weather Statement | GLD | Wichita | 27 min |
| Jun 29, 6:54 PM MDT | Special Weather Statement | GLD | Rawlins | 21 min |
| Jun 29, 7:15 PM MDT | Special Weather Statement | GLD | Rawlins | 30 min |
| Jun 29, 7:26 PM MDT | Severe Thunderstorm Warning | GLD | Rawlins, Sherman, Thomas | 64 min |
| Jun 29, 7:38 PM MDT | Severe Thunderstorm Warning | GLD | Rawlins | 52 min |
| Jun 29, 8:26 PM MDT | Severe Thunderstorm Warning | GLD | Rawlins, Thomas | 38 min |
| Jun 29, 8:31 PM MDT | Severe Thunderstorm Warning | GLD | Gove, Logan, Sheridan, Thomas | 20 min |
| Jun 29, 8:48 PM MDT | Severe Thunderstorm Warning | GLD | Decatur, Rawlins, Sheridan, Thomas | 42 min |
| Jun 29, 8:53 PM MDT | Special Weather Statement | GLD | Gove | 22 min |
| Jun 29, 9:29 PM MDT | Special Weather Statement | GLD | Decatur | 31 min |
| Jun 29, 9:38 PM MDT | Severe Thunderstorm Warning | GLD | Decatur, Norton | 52 min |
| Jun 29, 10:19 PM MDT | Special Weather Statement | GLD | Norton | 26 min |
| Jun 30, 4:46 PM MDT | Special Weather Statement | GLD | Sheridan | 14 min |
| Jun 30, 5:14 PM MDT | Special Weather Statement | GLD | Sheridan | 16 min |
| Jun 30, 5:31 PM MDT | Special Weather Statement | GLD | Graham | 14 min |
| Jun 30, 5:44 PM MDT | Severe Thunderstorm Warning | GLD | Decatur, Graham, Norton, Sheridan | 46 min |
| Jun 29, 6:00 PM MDT | Special Weather Statement | GLD | Cheyenne | 15 min |
| Jun 30, 5:02 PM MDT | Special Weather Statement | GLD | Yuma | 13 min |
| Jun 30, 5:57 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 48 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2018Every severe thunderstorm warning 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.