Hail, Yuma
- When
- August 25, 5:55 PM MST
- Where
- Yuma County, 3.01 mi SE of Yuma Arpt
- Measured
- 0.75 in hail
- Reported by
- Trained Spotter
- Coordinates
- 40.075, -102.674
Hail in Colorado, August 25, 2018
A small line of thunderstorms moved southeast across East Central Colorado in the evening. Dime size hail was reported from these storms in Yuma County.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 2
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.
What happened
The episode as NWS GLD wrote it up.
A small line of thunderstorms moved southeast across East Central Colorado in the evening. Dime size hail was reported from these storms in Yuma County.
What forecasters said that day
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 Aug 25, 3:00 PM MST, 2 hours 55 minutes earlier.
Area forecast discussion, Aug 25, 3:00 PM MST, 2 hours 55 minutes before
Area Forecast Discussion National Weather Service Goodland KS 400 PM MDT Sat Aug 25 2018 .SHORT TERM...(This evening through Tuesday) Issued at 315 PM MDT Sat Aug 25 2018 Forecast concerns will be chance of thunderstorms into Sunday, how hot does it get through Monday, Fire Weather on Monday, and how much does it cool off Tuesday. Satellite showing an amplified flow over the Pacific. This flow flattens out and is more progressive over the country. Subtropical moisture is streaming into the area from the southwest. For Tonight/Sunday...Very unorganized/weak forcing expected through the night. Currently earlier storms have weakened and moved north of the area. These storms appear to be result of right rear quadrant of jet. Expect that activity to move north as that right rear quadrant moves north and then stays to the north and west of the area through the night. Little to no height falls also do not occur through the night with the largest happening late in the night. Still despite the loss of the jet, the main shortwave and height falls are near/over northwest corner with also a subtle surface convergence boundary. Earlier models were not developing much precipitation in the northwest portion. However they now appear to be missing this with the 18Z Nam and the most recent run of the Hrrr catching the persistent linear storms near/over Yuma county. So raised pops in the northwest corner. A second area of development looks to be in the southern third of the area. This is where the best mid level moisture resides plus this is where the least cap and most instability resides. So will also have chance pops in this area as well. With precipitable water values near 1.5 inches, locally heavy rainfall will be possible and Cams would support that as well. In addition to the locally heavy rainfall, damaging winds will be the other main threat due to steep low level lapse rates/high Dcape values. For Sunday, right rear quadrant stays near the northwest portion of the area through the afternoon. Also it looks like shortwave ridging will be in place during the day. So will keep the day dry. Models have not been too bad on maxes recently and see no reason to deviate significantly from any blend. That means temperatures in the 90s once again. For Sunday night/Monday...Right rear quadrant of jet is near the northern portion of the area through the evening. This moves across the forecast area during the overnight hours. Next shortwave trough moves through during the evening. Right now the blend only gives me a slight chance in the evening. Can see this activity needing to be extended into the overnight hours. At this time, I can live with what is in there. Main change for this period was to make the high temperatures warmer. On Monday, look to have plenty of sun with downslope winds through mid levels. Also should have prefrontal warming. So warmed maxes above what the blend gave me. For the fire weather concern please refer to that section below. For Monday night/Tuesday...Front moves through during the night. However it looks dry due to deep dry air mass with 700 mb temperatures of +15 or higher. So we stay capped. Models are cooler on Tuesday from previous run. Blend does look reasonable at this time, and see no reason to change it. .LONG TERM...(Tuesday night through Saturday) Issued at 131 PM MDT Sat Aug 25 2018 After the cold front passes through Tuesday, a warm front moves through the Tri-State region Wednesday into Thursday raising temperatures back into the 90s through the end of the week. High pressure rebuilds over the southwest U.S. from the East coast by Thursday. A series of shortwaves will move through the Tri-State region Wednesday night through Saturday leading to precipitation chances, though chances remain low at this time. Temperatures cool off slightly Saturday as a trough extends south across the central Plains and moves eastward during the day. By Saturday night, a ridge begins shifting east over the southern Plains. && .AVIATION...(For the 00Z TAFS through 00Z Sunday evening) Issued at 400 PM MDT Sat Aug 25 2018 For KGLD and KMCK, vfr conditions expected through the period. Good agreement that a weather disturbance moves across the forecast area from the southwest from taf issuance through shortly after sunrise Sunday morning with drier air throughout the atmosphere moving in behind it. At this time shower and thunderstorm activity appears to miss both terminals, enough that it wont be mentioned in the terminal forecast. If either terminal were to get any thunder it would be in the KGLD area around 00z through perhaps 06z with gusty outflow winds the primary threat. Will monitor convective threat closely and its possible amendments will be needed. && .FIRE WEATHER... Issued at 315 PM MDT Sat Aug 25 2018 For Monday...For counties along the Colorado border, relative humidities will drop to near 15 percent. However, at this time winds look to stay below 25 mph. Will continue to watch this day closely. && .GLD WATCHES/WARNINGS/ADVISORIES... KS...NONE. CO...NONE. NE...NONE. && SHORT TERM...BULLER LONG TERM...NEWMAN AVIATION...99 FIRE WEATHER...BULLER
Hazardous weather outlook, Aug 25, 2:06 PM MST, 3 hours 49 minutes before
Hazardous Weather Outlook National Weather Service Goodland KS 306 PM MDT Sat Aug 25 2018 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-261200- Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins- Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove- Greeley-Wichita-Dundy-Hitchcock-Red Willow- 306 PM MDT Sat Aug 25 2018 /406 PM CDT Sat Aug 25 2018/ This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...THIS AFTERNOON AND TONIGHT... Isolated to scattered thunderstorms will be possible into the overnight hours. A few of these storms could become severe with damaging winds and locally heavy rainfall the main threats. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH SATURDAY... No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required.
In the hours before
Special weather statement, Aug 25, 3:51 PM MST, 2 hours 4 minutes before
Special Weather Statement National Weather Service Goodland KS 451 PM MDT SAT AUG 25 2018 COZ090-252300- Yuma County CO- 451 PM MDT SAT AUG 25 2018 At 449 PM MDT, Doppler radar was tracking a thunderstorm 16 miles south of Yuma, moving east at 15 mph. This thunderstorm was producing rainfall rates of 2.5-3 inches per hour. Zero visibility and standing water on roadways are expected with this storm. Locations impacted include... Abarr and Heartstrong. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3999 10249 3980 10249 3981 10280 3995 10280 TIME...MOT...LOC 2249Z 262DEG 14KT 3989 10268 Lundquist
Special weather statement, Aug 25, 4:00 PM MST, 1 hour 55 minutes before
Special Weather Statement National Weather Service Goodland KS 500 PM MDT SAT AUG 25 2018 COZ090-252315- Yuma County CO- 500 PM MDT SAT AUG 25 2018 At 500 PM MDT, Doppler radar was tracking a strong thunderstorm 16 miles south of Yuma, moving east at 15 mph. Zero visibility and shallow standing water on roadways is expected due to the torrential rainfall. Locations impacted include... Abarr and Heartstrong. LAT...LON 3979 10279 3997 10279 4000 10248 3978 10247 TIME...MOT...LOC 2300Z 262DEG 14KT 3990 10266 Lundquist
Special weather statement, Aug 25, 5:30 PM MST, 25 minutes before
Special Weather Statement
National Weather Service Goodland KS
630 PM MDT SAT AUG 25 2018
COZ090-260045-
Yuma County CO-
630 PM MDT SAT AUG 25 2018
...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL YUMA COUNTY UNTIL
645 PM MDT...
At 629 PM MDT, Doppler radar was tracking a strong thunderstorm 11
miles northeast of Arickaree School, or 20 miles south of Yuma,
moving northeast at 30 mph.
Dime size hail and winds up to 50 mph will be possible with this
storm.
Locations impacted include...
Abarr.
LAT...LON 4000 10279 4004 10279 4007 10275 3986 10254
3975 10280 4000 10280
TIME...MOT...LOC 0029Z 232DEG 26KT 3985 10286
LundquistSpecial weather statement, Aug 25, 5:46 PM MST, 9 minutes before
Special Weather Statement
National Weather Service Goodland KS
646 PM MDT SAT AUG 25 2018
COZ092-260100-
Cheyenne County CO-
646 PM MDT SAT AUG 25 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN CHEYENNE COUNTY IN
EAST CENTRAL COLORADO UNTIL 700 PM MDT...
At 646 PM MDT, Doppler radar was tracking a strong thunderstorm 11
miles southeast of Cheyenne Wells, moving northeast at 30 mph.
Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.
This storm will remain over mainly rural areas of southeastern
Cheyenne County in east central Colorado.
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 3873 10233 3887 10222 3879 10204 3871 10205
3863 10215
TIME...MOT...LOC 0046Z 214DEG 24KT 3873 10217
LundquistSpecial weather statement, Aug 25, 5:52 PM MST, 3 minutes before
Special Weather Statement National Weather Service Goodland KS 652 PM MDT SAT AUG 25 2018 COZ090-260100- Yuma County CO- 652 PM MDT SAT AUG 25 2018 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN YUMA COUNTY UNTIL 700 PM MDT... At 651 PM MDT, trained weather spotters reported a strong thunderstorm 5 miles east of Yuma, moving east at 25 mph. Dime size hail and winds of 30 mph have been reported near Yuma with this storm. Locations impacted include... Eckley. LAT...LON 3995 10270 4021 10271 4031 10238 3998 10242 TIME...MOT...LOC 0051Z 256DEG 24KT 4012 10262 Lundquist
Special weather statement, Aug 25, 5:55 PM MST, 0 minutes before
Special Weather Statement National Weather Service Goodland KS 655 PM MDT SAT AUG 25 2018 COZ090-260115- Yuma County CO- 655 PM MDT SAT AUG 25 2018 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN YUMA COUNTY UNTIL 715 PM MDT... At 654 PM MDT, Doppler radar was tracking a strong thunderstorm 10 miles northeast of Arickaree School, or 22 miles south of Yuma, moving east at 15 mph. Nickel size hail and winds of 30 mph will be possible with this storm. Locations impacted include... Abarr. LAT...LON 3995 10280 3999 10265 3970 10262 3969 10280 TIME...MOT...LOC 0054Z 261DEG 12KT 3982 10286 Lundquist
The radar
The Goodland radar (KGLD), 115 km away, was scanning. The volume nearest the first event began at 00:55 UTC.
Event by event
2 hail. Local standard time, as filed.
Hail, Yuma
- When
- August 25, 6:40 PM MST
- Where
- Yuma County, 1.14 mi ESE of Abarr
- Measured
- 0.75 in hail
- Reported by
- Trained Spotter
- Coordinates
- 39.841, -102.702
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Hail and Damaging Winds in Indiana, August 25, 2018
- Damaging Wind and Lightning Strikes in Florida, August 25, 2018
- Heat in Missouri, August 25 to 26, 2018
- Damaging Winds in Texas, August 25, 2018
- Hail and Damaging Winds in Indiana, August 25, 2018
- Flash Flooding and Heavy Rain in Arizona, August 25, 2018
- Hail and Damaging Wind in North Dakota, August 25 to 26, 2018
- Flood and Damaging Winds in Florida, August 25, 2018
- Marine Thunderstorm Winds in Gulf of Mexico, August 25, 2018
- Damaging Winds in South Dakota, August 25, 2018
- Damaging Winds in South Dakota, August 25, 2018
- Hail in North Dakota, August 25, 2018
More
Every storm in Colorado in 2018Every state in 2018This day in weather historyWarnings in Colorado, August 2018
Sources
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: 779096, 779097.