Hail, Dundy
- When
- July 18, 5:35 PM MST
- Where
- Dundy County, 7.59 mi N of Colfer
- Measured
- 1.75 in hail
- Reported by
- Public
- Coordinates
- 40.140, -101.862
Most of the hail stones were dime size, but some were golf ball size.
Hail in Nebraska, July 18, 2017
During the evening a couple severe thunderstorms produced large hail in Dundy County. The largest hail reported was golf ball size.
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.
During the evening a couple severe thunderstorms produced large hail in Dundy County. The largest hail reported was golf ball size.
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 Jul 18, 5:27 PM MST, 8 minutes earlier.
Area forecast discussion, Jul 18, 5:27 PM MST, 8 minutes before
Area Forecast Discussion
National Weather Service Goodland KS
627 PM MDT Tue Jul 18 2017
.UPDATE...
Issued at 624 PM MDT Tue Jul 18 2017
Cluster of thunderstorms currently over the northwest corner of
the area. High resolution guidance having some difficulty in
capturing latest trends although they do cluster around the best
chance of thunderstorms over northern Yuma county. As a result of
the latest trends and best performing high resolution guidance, am
adjusting pops accordingly.
&&
.SHORT TERM...(This afternoon through Wednesday)
Issued at 208 PM MDT Tue Jul 18 2017
Large scale ridge extents from the southwest US, across the Central
High Plains, and into the southern Mississippi River Valley. A plume
of monsoonal moisture is shown on WV imagery to be rotating through
the western extent of this ridge and into the Central Rockies.
This afternoon-tonight: A front stalled over the Nebraska Panhandle
may shift south slightly in response to a mid level shortwave
associated with monsoonal flow riding the northern part of the ridge.
This should remain north of our CWA, but the increased forcing may
combine with weak convergence along surface trough in our northwest
to kick off thunderstorm activity. CINh has already weakened in this
region and a shallow CU field has developed. RAP analysis support ML
CAPE in excess of 2000 J/KG and PWATs around 1-1.3" range. Shear is
less impressive, so once again localized heavy rain and pulse
thunderstorms are favored (hail/wind). Thunderstorm activity is
shown by high res guidance to drift to the southeast which takes it
away from better instability, but does raise the possibility for
showers/thunderstorms further south and east than originally
anticipated. I made adjustments to account for these trends.
Wednesday: Ridge shifts just a little further north and we should
see subsidence in place and a less favorable pattern for possible
afternoon thunderstorm development. Guidance is in line with this
shift in pattern, and keeps conditions dry over our CWA.
Regarding Temperatures/Heat Advisory: We have yet to reach
advisory criteria over most locations in advised area, but it is
getting close and a few locations are just now starting to reach.
There is an upward trend in temps in line with forecast, and Tds
are remaining high in our east. No changes planned as heat index
values 103-105 (a few higher) still appear likely across advised
area. Overnight lows remain mild, but heat indices should decrease
below 75 (may be close in our far east), so a decision was made
not to extend advisory overnight. Tds may be a little lower on
Wed, but temperatures will not be much different (upper 90s/lower
100s). Result should be 103-105 heat index values confined in our
north and east, and I issued another Heat Advisory for Wed
afternoon/early evening at favored locations. I am less confidence
further west and south.
.LONG TERM...(Wednesday night through Tuesday)
Issued at 134 PM MDT Tue Jul 18 2017
High pressure aloft is expected to move east over the plains while a
a short wave trough starts to move in behind the ridge. A few storms
are possible during the evening, mainly over the northwestern
sections of our area, due to a shift in the pattern. Thursday's
overnight low temperatures are expected to drop into middle to upper
60s over the western half and 70-75 over the eastern half of the
forecast area.
Over the weekend, the ridge will continue to flatten out and move
towards the east on Friday. This will produce slightly cooler
temperatures over the western half of our CWA while the eastern half
is still expected to climb into the upper 90s to just over 100
degrees. A prefrontal boundary looks to push through the region from
the northwest to southeast and serve as an axis for thunderstorm
development Friday afternoon. Then a cold front will follow on
Saturday producing another chance of thunderstorms across the
region. This cold front looks to stall and weaken over the central
Plains on Sunday. This will keep showers and thunderstorms in the
forecast until the front weakens and eventually give way to another
building high pressure from the west, decreasing rain chances Sunday
night and early into Monday morning.
As high pressure returns to the region during the first part of the
week, weak troughs are expected to move through the region as well.
with that said going to keep the chance of showers and
thunderstorms that the builder is given for the end of. As for the
period. As for temperatures, expect the highs to reach into the
upper 80s.
&&
.AVIATION...(For the 00Z TAFS through 00Z Wednesday evening)
Issued at 534 PM MDT Tue Jul 18 2017
Vfr conditions are expected through the period. For Kgld, a
prefrontal trough that is currently near the site will move north
later on this evening into the overnight hours. Late tomorrow
morning the south winds will increase to near 17 knots with gusts
to near 25 knots.
For Kmck, thunderstorms will be in the area during the mid and
late evening hours. However, current trends are not matching up
well with high resolution/Cam output so have low confidence in
what will happen. This is usually happens in weak flow aloft
situations. So at this time chose to do vcts beginning at 03z and
ending at 06z. For the first half of the period the winds will be
less than 10 knots from the east or light and variable due to
thunderstorm outflow winds. By late tomorrow morning/early
tomorrow afternoon southerly winds will increase to near 15 knots
with gusts to near 23 knots.
&&
.GLD WATCHES/WARNINGS/ADVISORIES...
KS...Heat Advisory until 8 PM CDT this evening for KSZ002>004-014>016-
028-029.
Heat Advisory from 1 PM to 8 PM CDT Wednesday for KSZ002>004-015-
016.
CO...NONE.
NE...Heat Advisory until 7 PM MDT /8 PM CDT/ this evening for
NEZ079>081.
Heat Advisory from noon MDT /1 PM CDT/ to 7 PM MDT /8 PM CDT/
Wednesday for NEZ079>081.
&&
UPDATE...BULLER
SHORT TERM...DR
LONG TERM...BW
AVIATION...BULLERHazardous weather outlook, Jul 18, 9:40 AM MST, 7 hours 55 minutes before
Hazardous Weather Outlook National Weather Service Goodland KS 1040 AM MDT Tue Jul 18 2017 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-191645- Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins- Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove- Greeley-Wichita-Dundy-Hitchcock-Red Willow- 1040 AM MDT Tue Jul 18 2017 /1140 AM CDT Tue Jul 18 2017/ This hazardous weather outlook is for east central Colorado... extreme southwest Nebraska and northwest Kansas. .DAY ONE...THIS AFTERNOON AND TONIGHT... A few severe thunderstorms may develop late this afternoon through the early evening across northeast Colorado and southwest Nebraska. Threats include large hail and damaging wind. Heat index values around 105 degrees are possible across portions of the central high plains east of a line from Benkelman, Nebraska to Oakley, Kansas this afternoon. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH TUESDAY... High Temperatures and Heat Index values in the lower 100s are possible each afternoon from Wednesday through Friday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required after 2 PM MDT (3 PM CDT) through 8 PM MDT (9 PM CDT).
In the hours before
Special weather statement, Jul 18, 4:21 PM MST, 1 hour 14 minutes before
Special Weather Statement
National Weather Service Goodland KS
521 PM MDT TUE JUL 18 2017
COZ090-KSZ001-182330-
Yuma County CO-Cheyenne KS-
521 PM MDT TUE JUL 18 2017
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL YUMA COUNTY IN
NORTHEASTERN COLORADO AND NORTHWESTERN CHEYENNE COUNTIES IN
NORTHWESTERN KANSAS UNTIL 530 PM MDT/630 PM CDT/...
At 521 PM MDT/621 PM CDT/, Doppler radar was tracking a strong
thunderstorm 8 miles southwest of Haigler, or 14 miles northwest of
St. Francis, moving southeast at 5 mph.
Dime size hail and wind gusts up to 50 mph will be possible with this
storm.
Locations impacted include...
Beecher Island.
This includes Highway 385 between mile markers 232 and 236.
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.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4001 10205 4000 10205 4000 10203 3989 10173
3974 10191 3995 10232 4003 10210
TIME...MOT...LOC 2321Z 310DEG 6KT 3990 10201
Husted/HillLocal storm report, Jul 18, 4:22 PM MST, 1 hour 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
522 PM MDT TUE JUL 18 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0505 PM HAIL YUMA 40.12N 102.72W
07/18/2017 M1.00 INCH YUMA CO EMERGENCY MNGR
&&
RHUSTEDSpecial weather statement, Jul 18, 4:28 PM MST, 1 hour 7 minutes before
Special Weather Statement
National Weather Service Goodland KS
528 PM MDT TUE JUL 18 2017
COZ090-182345-
Yuma County CO-
528 PM MDT TUE JUL 18 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN YUMA COUNTY UNTIL
545 PM MDT...
At 527 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 5 miles northeast of Lone Star to 6 miles
northwest of Eckley. Movement was east at 15 mph.
Nickel size hail and wind gusts up to 50 mph will be possible with
these storms.
Locations impacted include...
Yuma, Eckley and Clarkville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4044 10259 4009 10239 4003 10279 4035 10279
4035 10278 4044 10278
TIME...MOT...LOC 2327Z 255DEG 14KT 4040 10275 4016 10259
Husted/HillSpecial weather statement, Jul 18, 4:32 PM MST, 1 hour 3 minutes before
Special Weather Statement National Weather Service Goodland KS 532 PM MDT TUE JUL 18 2017 COZ090-KSZ001-NEZ079-190000- Yuma County CO-Cheyenne KS-Dundy NE- 532 PM MDT TUE JUL 18 2017 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL YUMA COUNTY IN NORTHEASTERN COLORADO...NORTHWESTERN CHEYENNE COUNTY IN NORTHWESTERN KANSAS AND SOUTHWESTERN DUNDY COUNTIES IN SOUTHWESTERN NEBRASKA UNTIL 600 PM MDT/700 PM CDT/... At 532 PM MDT/632 PM CDT/, Doppler radar was tracking strong thunderstorms along a line extending from 3 miles south of Wray to 4 miles northwest of St. Francis. These storms were nearly stationary. Dime size hail and wind gusts up to 50 mph will be possible with these storms. Locations impacted include... Wray, St. Francis, Laird and Beecher Island. This includes Highway 385 between mile markers 234 and 244. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with these storms, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with these storms. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 4014 10218 3985 10167 3971 10184 3999 10233 TIME...MOT...LOC 2332Z 226DEG 3KT 4003 10222 3983 10185 Husted/Hill
Special weather statement, Jul 18, 5:09 PM MST, 26 minutes before
Special Weather Statement
National Weather Service Goodland KS
609 PM MDT TUE JUL 18 2017
COZ090-190045-
Yuma County CO-
609 PM MDT TUE JUL 18 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN YUMA COUNTY UNTIL
645 PM MDT...
At 609 PM MDT, Doppler radar was tracking a strong thunderstorm 6
miles southeast of Lone Star, or 13 miles north of Yuma, moving
southeast at 10 mph.
Nickel size hail and wind gusts of 50 to 55 mph will be possible with
this storm.
Locations impacted include...
Clarkville.
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.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4044 10252 4027 10239 4015 10265 4026 10280
4035 10279 4035 10278 4044 10278
TIME...MOT...LOC 0009Z 315DEG 8KT 4032 10273
Husted/HillLocal storm report, Jul 18, 5:23 PM MST, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
623 PM MDT TUE JUL 18 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0618 PM HAIL 10 S HAIGLER 39.87N 101.94W
07/18/2017 E1.00 INCH CHEYENNE KS PUBLIC
PEA TO QUARTER SIZE HAIL.
&&
HILLThe radar
The Goodland radar (KGLD), 87 km away, was scanning. The volume nearest the first event began at 00:32 UTC.
Event by event
2 hail. Local standard time, as filed.
Hail, Dundy
- When
- July 18, 6:05 PM MST
- Where
- Dundy County, 11.38 mi NNW of Parks
- Measured
- 1.25 in hail
- Reported by
- Public
- Coordinates
- 40.206, -101.788
The hailstones ranged from quarter to half dollar in size. There was not much hail on the ground either.
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
- Excessive Heat in Missouri, July 18 to 23, 2017
- Flash Flood and Hail in North Carolina, July 18, 2017
- Hail and Damaging Winds in North Carolina, July 18, 2017
- Hail and Damaging Winds in Virginia, July 18, 2017
- Flash Flooding and Dust Storm in Arizona, July 18 to 19, 2017
- Damaging Wind in Florida, July 18, 2017
- Hail and Damaging Winds in South Dakota, July 18, 2017
- Flooding and Lightning Strike in Massachusetts, July 18 to 19, 2017
- Damaging Wind in North Dakota, July 18, 2017
- Drought in Oklahoma, July 18 to 31, 2017
- Damaging Winds in South Dakota, July 18, 2017
- Hail and Damaging Winds in South Carolina, July 18, 2017
More
Every storm in Nebraska in 2017Every state in 2017This day in weather historyWarnings in Nebraska, July 2017
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: 715876, 715877.