Colorado, 2023

Tornadoes and Hail in Colorado, August 8, 2023

August 8, 2023 · NWS GLD · 27 events in 3 counties and zones

During the afternoon hours, a strong supercell developed over Logan and Washington Counties. As the storm moved southeast near the community of Hyde, Colorado, it produced a EF-3 tornado that continued into 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$1.2 million
Crop damage
None recorded
Events
27

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 afternoon hours, a strong supercell developed over Logan and Washington Counties. As the storm moved southeast near the community of Hyde, Colorado, it produced a EF-3 tornado that continued into Yuma County. The tornado reached it's peak intensity while just southwest of the city of Yuma with significant damage to a residence and two metal buildings. The supercell continued to move south then southeast across Yuma County to produce a total of seven tornadoes, with one EF-2 tornado moving into far north Kit Carson County. The other tornadoes were ranked EF-U with another north of Abarr ranked an EF-0. The storm also produced thunderstorm wind gusts up to 100 mph with damage to trees and power poles. Large hail was another hazard produced with 1 to 5.25 inch hail reported across Yuma County. The 5.25 inch hailstone fell near Kirk, Colorado, and set a new hail size record for the state of Colorado. After crossing into Kit Carson County the thunderstorm turned east, producing more severe weather in Sherman County Kansas.

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 8, 12:19 PM MST, 3 hours 38 minutes earlier.

Area forecast discussion, Aug 8, 12:19 PM MST, 3 hours 38 minutes before
Area Forecast Discussion
National Weather Service Goodland KS
119 PM MDT Tue Aug 8 2023

.SHORT TERM...(This evening through Friday)
Issued at 115 PM MDT Tue Aug 8 2023

Shortwave trough evident on water vapor is traversing the Northern
Rockies this afternoon and will move across the forecast area
tonight. Thunderstorms are expected to initiate in southeast
Wyoming and northeast Colorado by late this afternoon and move
through areas north of Interstate 70 this evening and into the
overnight hours. The environment will be characterized by
instability of up to 3000 j/kg and deep layer shear of 40-50 kts,
the former slightly better compared to yesterday but the latter a
bit lower. These parameters are more than sufficient for another
round of thunderstorms with embedded supercells capable of
producing large hail, damaging winds and perhaps a few tornadoes.
Storms should merge into a cluster as they move into eastern
portions of the area later tonight with more or less the same
hazards, finally exiting the area to the east late tonight. In
addition to the severe hazards, some flash flooding will be
possible, mainly in areas that saw heavy rain last night where
soils are likely still saturated. However, not seeing any signals
in the models of a more widespread flooding threat. Finally,
patchy fog may develop in the wake of the storms around sunrise
Wednesday morning. Low temperatures will be in the 50s and 60s.

For Wednesday, there is a slight chance that some showers will
linger in eastern areas in the morning. Otherwise, the upper ridge
will build over the area from the Rockies resulting in dry
conditions. Temperatures will be similar to today with highs in
the upper 70s to lower 80s. Low temperatures Wednesday night will
be in the mid 50s to around 60.

On Thursday and Friday, the upper ridge will flatten with a weak zonal
flow across the plains. However, the ridge appears that it will
be close enough so the the main storm track will remain well north
of the area. As a result, there will be only low chances of
isolated afternoon and evening showers and thunderstorms. SPC has
only a general outlook with no severe storms expected either day
at this time. Temperatures will be warming up under the ridge,
with highs in the lower 90s on Thursday and low to mid 90s on
Friday.

.LONG TERM...(Saturday through Tuesday)
Issued at 115 PM MDT Tue Aug 8 2023

The upper ridge is forecast to slowly migrate from the Southern
Plains early in the period to the Desert Southwest late in the
period. As a result, the upper flow over the Central Plains will
gradually transition from zonal to northwest. This should
translate to a return to daily storm chances associated with
shortwaves rotating around the ridge. However, there is some
question over available moisture/instability for Sunday and Monday
as some models show drier air moving in from the north. There is
better moisture available by Tuesday with return flow in the lower
levels. Deep layer shear values appear to be limited to 30 kts or
less each day of this period, probably due to the weak flow aloft
under the ridge. This would limit the potential for severe storms
during the long term period. Overall, precipitation chances look
to be near or slightly below normal for the period. Temperatures
change little from day to day, with highs ranging from the upper
80s to lower 90s, which is near normal for mid August.

&&

.AVIATION...(For the 18Z TAFS through 18Z Wednesday afternoon)
Issued at 1123 AM MDT Tue Aug 8 2023

Satellite and observational trends show scattered MVFR ceilings
moving into the area from the southeast which may impact KGLD
through the afternoon. Scattered to numerous thunderstorms will
then develop by late afternoon and continue through this evening.
Both KGLD and KMCK will likely be impacted by these storms by a
brief period of gusty winds followed by a few hours of reduced
visibility in rain and lowered ceilings. Overnight, expecting a
chance for low ceilings and patchy fog to develop by sunrise and
persisting into Wednesday morning before dissipating.

&&

.GLD WATCHES/WARNINGS/ADVISORIES...
KS...Flood Watch from 5 PM MDT /6 PM CDT/ this afternoon through late
     tonight for KSZ001>004-013>016-027>029-041-042.

CO...NONE.
NE...Flood Watch from 5 PM MDT /6 PM CDT/ this afternoon through late
     tonight for NEZ079>081.

&&

SHORT TERM...024
LONG TERM...024
AVIATION...024
Hazardous weather outlook, Aug 8, 9:54 AM MST, 6 hours 3 minutes before
Hazardous Weather Outlook
National Weather Service Goodland KS
1054 AM MDT Tue Aug 8 2023

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-091700-
Yuma-Kit Carson-Cheyenne-Rawlins-Decatur-Norton-Sherman-Thomas-
Sheridan-Graham-Wallace-Logan-Gove-Greeley-Wichita-Dundy-Hitchcock-
Red Willow-
1054 AM MDT Tue Aug 8 2023 /1154 AM CDT Tue Aug 8 2023/

This hazardous weather outlook is for extreme southwest Nebraska...
northwest Kansas and east central Colorado.

.DAY ONE...TODAY AND TONIGHT...

Strong to severe storms are expected to impact the Tri State area
late this afternoon and especially this evening. Hazards will
include large hail, damaging wind gusts and isolated tornado
potential. Locally heavy rainfall will also occur with expected
convection.

A Flood Watch is in effect for southwest Nebraska and northwest
Kansas for potential flash flooding in storms. This is expected in
the evening into the overnight hours.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH TUESDAY...

For Friday on into next Tuesday, mainly afternoon and evening
thunderstorms are expected across the Tri State region.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

In the hours before

Local storm report, Aug 8, 10:23 AM MST, 5 hours 34 minutes before
Preliminary Local Storm Report
National Weather Service Goodland KS
1123 AM MDT Tue Aug 8 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0602 PM     Tstm Wnd Dmg     10 S Culbertson         40.09N 100.84W
08/07/2023                   Hitchcock          NE   Public

            Report and pictures of roof blown off home
            approximately 10 miles south of Culbertson.
            Received via Facebook.

&&

JRM
Local storm report, Aug 8, 12:35 PM MST, 3 hours 22 minutes before
Preliminary Local Storm Report
National Weather Service Goodland KS
135 PM MDT Tue Aug 8 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0449 PM     Hail             4 N Colby               39.45N 101.05W
08/07/2023  E2.75 inch       Thomas             KS   Public

            Corrects previous hail report from 4 N
            Colby. Corrects previous hail report from 4
            N Colby. Ping pong to golf ball size hail 4
            miles N of Colby at 4:49 pm MDT. Egg sized
            hail observed at 4:53 PM MDT and still
            ongoing at 4:58 PM. Hail then increased to
            baseball size or slightly larger.

&&

JTL
Local storm report, Aug 8, 12:37 PM MST, 3 hours 20 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Goodland KS
137 PM MDT Tue Aug 8 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 PM     Tstm Wnd Gst     8 WSW Mingo             39.23N 101.10W
08/07/2023  M68 MPH          Thomas             KS   Mesonet

            Mesonet station KKSCOLBY35.

0627 PM     Tstm Wnd Gst     16 S Ruleton            39.12N 101.87W
08/07/2023  M66 MPH          Wallace            KS   Mesonet

0657 PM     Tstm Wnd Gst     2 ENE Winona            39.08N 101.21W
08/07/2023  M65 MPH          Logan              KS   Mesonet

            Summers646 davis weather station reported 65
            mph gust.

0557 PM     Tstm Wnd Gst     9 N Page City           39.21N 101.13W
08/07/2023  M61 MPH          Thomas             KS   Mesonet

            Mesonet station KKSCOLBY28.

0705 PM     Tstm Wnd Gst     6 ESE Weskan            38.82N 101.85W
08/07/2023  M61 MPH          Wallace            KS   Mesonet

            Mesonet station KWLK1 Wallace. 2m wind gust.

0450 PM     Tstm Wnd Gst     2 WNW Vernon            39.95N 102.32W
08/07/2023  E60 MPH          Yuma               CO   Trained Spotter

0657 PM     Tstm Wnd Gst     Sharon Springs          38.89N 101.75W
08/07/2023  E60 MPH          Wallace            KS   Public

            4 inch diameter tree limbs downed from pear
            tree. Wind gusts estimated at 60 mph at 6:57
            pm MDT.

0715 PM     Tstm Wnd Gst     9 WSW Winona            39.00N 101.39W
08/07/2023  M60 MPH          Logan              KS   Mesonet

            Mesonet station UP840 9.0 W Winona (UPR).

0415 PM     Tstm Wnd Gst     10 S Mcdonald           39.65N 101.37W
08/07/2023  M58 MPH          Rawlins            KS   NWS Employee

            Off-Duty NWS Employee reported a measured 58
            mph with handheld Davis anemometer at 8 ft
            high.

0609 PM     Tstm Wnd Gst     1 NNE Goodland          39.37N 101.70W
08/07/2023  M58 MPH          Sherman            KS   ASOS

            ASOS station KGLD Goodland.

0423 PM     Tstm Wnd Gst     5 NW Wauneta            40.36N 102.31W
08/07/2023  M55 MPH          Yuma               CO   Mesonet

0618 PM     Tstm Wnd Gst     1 NW Monument           39.11N 101.01W
08/07/2023  E55 MPH          Logan              KS   Emergency Mngr

            Estimated 55 mph wind gusts with some small
            branches less than 1 inch in diameter
            breaking off trees.

0545 PM     Tstm Wnd Gst     Hale                    39.63N 102.12W
08/07/2023  M52 MPH          Yuma               CO   Mesonet

            Mesonet station TT563 South Republican.

0552 PM     Tstm Wnd Gst     9 SSE Bonny Reservoir   39.50N 102.07W
08/07/2023  E50 MPH          Kit Carson         CO   Public

            Caller estimated 45 to 50 mph winds with pea
            sized hail.

0625 PM     Tstm Wnd Gst     4 W Oakley              39.13N 100.92W
08/07/2023  E50 MPH          Logan              KS   Public

0428 PM     Hail             15 S Beardsley          39.60N 101.21W
08/07/2023  E4.00 inch       Rawlins            KS   Trained Spotter

            Spotter reported hail that busted out
            windshield of car. Did also observe a
            rapidly rotating wall cloud.

0315 PM     Hail             6 SE Palisade           40.30N 101.02W
08/07/2023  E2.75 inch       Hitchcock          NE   Public

            Delayed report of golf ball to baseball
            sized hail a the junction of Highways 6 and
            25.

0449 PM     Hail             4 N Colby               39.45N 101.05W
08/07/2023  E2.75 inch       Thomas             KS   Public

            Corrects previous hail report from 4 N
            Colby. Corrects previous hail report from 4
            N Colby. Ping pong to golf ball size hail 4
            miles N of Colby at 4:49 pm MDT. Egg sized
            hail observed at 4:53 PM MDT and still
            ongoing at 4:58 PM. Hail then increased to
            baseball size or slightly larger.

0551 PM     Hail             3 WSW Angelus           39.17N 100.74W
08/07/2023  M2.75 inch       Thomas             KS   Public

            Social media report with picture of hail up
            to baseball sized covering the ground. Time
            estimated from radar.

0555 PM     Hail             3 ENE Campus            39.15N 100.69W
08/07/2023  E2.50 inch       Sheridan           KS   Public

            Reported via social media. Ping pong to
            tennis ball sized hail observed. Damage to a
            pickup truck and the entire east side of the
            house. Time estimated via radar.

0345 PM     Hail             6 N Bird City           39.84N 101.53W
08/07/2023  M2.00 inch       Cheyenne           KS   Public

            Social media report with picture of near 2
            inch hail 6 miles north of Bird City.

0443 PM     Hail             4 N Indianola           40.30N 100.42W
08/07/2023  E2.00 inch       Red Willow         NE   Public

            Period of golfball to hen egg size hail
            reported. Hail lasted approx 20 minutes,
            reported via Facebook. Time estimated from
            radar.

0523 PM     Hail             5 W Bonny Reservoir     39.60N 102.25W
08/07/2023  E2.00 inch       Yuma               CO   Storm Chaser

            Estimated 2 inch hail reported at location.

0600 PM     Hail             Grinnell                39.12N 100.63W
08/07/2023  M2.00 inch       Gove               KS   Public

            Reported via social media. Golf ball to
            tennis ball sized hail observed.

0603 PM     Hail             Grinnell                39.12N 100.63W
08/07/2023  E2.00 inch       Gove               KS   Public

            Report from mPING: Hen Egg (2.00 in.).

0355 PM     Hail             15 N Saint Francis      39.98N 101.75W
08/07/2023  E1.75 inch       Cheyenne           KS   Trained Spotter

            Spotter reported golf ball size hail on Road
            17 around 1 mile south of the KS/NE border
            at 355 pm MDT.

0500 PM     Hail             9 S Mcdonald            39.65N 101.38W
08/07/2023  E1.75 inch       Rawlins            KS   Public

            Hail lasted about 5 minutes.

0508 PM     Hail             6 N Colby               39.47N 101.05W
08/07/2023  M1.75 inch       Thomas             KS   Public

            Social media report with picture of golf
            ball sized hail. Time estimated from radar.

0508 PM     Hail             3 NNW Colby             39.43N 101.07W
08/07/2023  M1.75 inch       Thomas             KS   Public

            Social media report of golf ball sized hail
            3 miles north of Colby. Time estimated from
            radar.

0519 PM     Hail             3 NNE Mingo             39.32N 100.93W
08/07/2023  E1.75 inch       Thomas             KS   Public

            time estimated from radar. Reported via
            Facebook.

0553 PM     Hail             1 WNW Angelus           39.20N 100.70W
08/07/2023  E1.75 inch       Sheridan           KS   Public

0559 PM     Hail             1 SSE Grinnell          39.12N 100.63W
08/07/2023  M1.75 inch       Gove               KS   Public

            Social media report with picture of hail to
            the size of golf balls. Time estimated from
            radar.

0600 PM     Hail             Grinnell                39.12N 100.63W
08/07/2023  E1.75 inch       Gove               KS   Emergency Mngr

            Emergency Manager reported damage to nearly
            all buildings in town on the north-facing
            side. Windows on the north-facing side are
            all busted out.

0600 PM     Hail             Grinnell                39.12N 100.63W
08/07/2023  E1.75 inch       Gove               KS   Public

            Report from mPING: Golf Ball (1.75 in.).

0630 PM     Hail             2 SW Angelus            39.17N 100.72W
08/07/2023  E1.75 inch       Sheridan           KS   Public

            Delayed report via social media of golf
            ball, and slightly larger, hail that fell
            around 7:30 PM CDT. Around 3 inches of rain
            were also reported from the storms. Trees
            lost most of their leaves according to this
            report.

0634 PM     Hail             Gove                    38.96N 100.50W
08/07/2023  M1.75 inch       Gove               KS   Trained Spotter

            Spotter reported lots of golf ball sized
            hail. Time estimated from radar.

0634 PM     Hail             Gove                    38.96N 100.49W
08/07/2023  E1.75 inch       Gove               KS   Emergency Mngr

            Emergency Manager reported damage to nearly
            all buildings in town on the north-facing
            side. Windows on the north-facing side are
            all busted out.

0635 PM     Hail             Gove                    38.96N 100.50W
08/07/2023  E1.75 inch       Gove               KS   Trained Spotter

            Accumulating golf ball sized hail reported.
            Time estimated.

0635 PM     Hail             Gove                    38.96N 100.50W
08/07/2023  E1.75 inch       Gove               KS   Trained Spotter

            Delayed report. Accumulating hail observed.

0640 PM     Hail             11 S Campus             38.96N 100.78W
08/07/2023  E1.75 inch       Gove               KS   Public

            Delayed Report of golf ball sized that broke
            out all of the north facing windows. Due to
            a broken window, the basement flooded.
            Potentially wind driven hail event. Multiple
            neighbors also reporting broken northern
            windows.

0642 PM     Hail             Grinnell                39.12N 100.63W
08/07/2023  E1.75 inch       Gove               KS   Public

            Delayed report of golf ball sized hail in
            Grinnell.

0700 PM     Hail             2 S Wallace             38.89N 101.59W
08/07/2023  E1.75 inch       Wallace            KS   Public

            Caller reported golf ball sized hail with
            broken windows. Hail lasted 10-12 minutes
            from the start time.

0705 PM     Hail             Wallace                 38.91N 101.59W
08/07/2023  E1.75 inch       Wallace            KS   Public

0715 PM     Hail             5 N Weskan              38.93N 101.96W
08/07/2023  M1.75 inch       Wallace            KS   Public

            Social media report of golf ball sized hail
            5 north of Weskan. Time estimated by radar.

0719 PM     Hail             7 S Wallace             38.81N 101.59W
08/07/2023  M1.75 inch       Wallace            KS   Public

            Time estimated by radar, reported via
            Facebook.

0745 PM     Hail             10 NNW Leoti            38.61N 101.46W
08/07/2023  E1.75 inch       Wichita            KS   Trained Spotter

            Corrects previous hail report from 10 NNW
            Leoti. Spotter estimated quarter to golf
            ball sized hail. Time estimated.

0825 PM     Hail             6 S Leoti               38.39N 101.35W
08/07/2023  E1.75 inch       Wichita            KS   Emergency Mngr

            Hail covering the road to a depth of one
            inch at the intersection of Road V and
            Highway 25 south of Leoti. Hail was
            predominately dime to nickel sized, with a
            few larger hail stones ranging from quarter
            to golf ball.

0250 PM     Hail             5 NW Stratton           40.20N 101.28W
08/07/2023  M1.50 inch       Hitchcock          NE   Trained Spotter

            Spotter measured up to ping pong ball sized
            hail. Most of the hail was quarter in size.

0332 PM     Hail             4 N Bird City           39.81N 101.53W
08/07/2023  M1.50 inch       Cheyenne           KS   Broadcast Media

            Delayed report.

0340 PM     Rain             Benkelman               40.05N 101.53W
08/07/2023  M1.50 inch       Dundy              NE   Public

            Reported via social media. Rain so far.

0410 PM     Hail             2 WSW Mcdonald          39.78N 101.41W
08/07/2023  E1.50 inch       Rawlins            KS   Public

            Social media report with picture of ping
            pong ball sized hail stones.

0453 PM     Hail             Indianola               40.23N 100.42W
08/07/2023  E1.50 inch       Red Willow         NE   Trained Spotter

            Ping pong ball size hail in Indianola at
            4:53 pm MDT.

0515 PM     Hail             5 WSW Bonny Reservoir   39.59N 102.25W
08/07/2023  M1.50 inch       Yuma               CO   Public

            Reported via social media. Location and time
            estimated.

0545 PM     Hail             1 N Goodland            39.36N 101.71W
08/07/2023  M1.50 inch       Sherman            KS   Public

            Social media report with picture of hail to
            ping pong ball in size.

0609 PM     Hail             1 NNE Goodland          39.37N 101.70W
08/07/2023  M1.50 inch       Sherman            KS   NWS Employee

            Corrects previous hail report from 1 NNE
            Goodland.

0658 PM     Hail             5 WNW Wallace           38.96N 101.67W
08/07/2023  E1.50 inch       Wallace            KS   Public

            Social media report of ping pong ball sized
            hail. Time estimated from radar.

0725 PM     Hail             6 S Wallace             38.83N 101.57W
08/07/2023  E1.50 inch       Wallace            KS   Public

            Time estimated via radar.

0737 PM     Hail             4 SSE Sharon Springs    38.84N 101.71W
08/07/2023  M1.50 inch       Wallace            KS   Public

            Social media report with picture of hail
            stones varying from quarter to ping pong
            ball in size. Time estimated from radar.

0400 PM     Hail             6 S Yuma                40.04N 102.72W
08/07/2023  E1.25 inch       Yuma               CO   Public

            Delayed report via social media. Hail
            stripped the corn in a field. Location
            estimated.

0422 PM     Hail             11 S Beardsley          39.66N 101.21W
08/07/2023  E1.25 inch       Rawlins            KS   Public

            Broken windshields on vehicle.

0422 PM     Hail             12 S Beardsley          39.63N 101.21W
08/07/2023  E1.25 inch       Rawlins            KS   Public

            Delayed report via social media. Hail
            ranging in size from pea to slightly larger
            than quarter sized. Most of the hail was
            dime to nickel in size.

0440 PM     Hail             8 N Levant              39.50N 101.19W
08/07/2023  E1.25 inch       Thomas             KS   Public

            reported via Facebook.

0622 PM     Hail             3 SW Goodland           39.31N 101.74W
08/07/2023  E1.25 inch       Sherman            KS   Public

            Dime to half dollar sized hail observed.

0813 PM     Hail             1 WSW Leoti             38.48N 101.37W
08/07/2023  M1.25 inch       Wichita            KS   Public

            Social media report with pictures of hail
            ranging from an inch to 1.25 inches.

0650 PM     Rain             Oakley                  39.13N 100.86W
08/07/2023  M1.15 inch       Logan              KS   Emergency Mngr

            Storm total so far.

0230 PM     Hail             7 N Benkelman           40.15N 101.53W
08/07/2023  M1.00 inch       Dundy              NE   Public

            Reported via social media.

0250 PM     Hail             6 NW Stratton           40.21N 101.31W
08/07/2023  E1.00 inch       Hitchcock          NE   Public

            Quarter sized hail observed in a field.

0319 PM     Hail             2 NNW Bird City         39.78N 101.54W
08/07/2023  E1.00 inch       Cheyenne           KS   Trained Spotter

            Sporadic quarter sized hail observed on
            Highway 161.

0330 PM     Hail             9 N Bird City           39.89N 101.53W
08/07/2023  E1.00 inch       Cheyenne           KS   Public

            Delayed report of 1 inch hail 9.5 miles
            north of Bird City by Big Timber Creek. 1.86
            inches of rain reported from the storms.

0335 PM     Hail             8 N Culbertson          40.34N 100.84W
08/07/2023  E1.00 inch       Hitchcock          NE   Public

            Reported via social media. Dime to quarter
            sized hail. Time estimated via radar.

0347 PM     Hail             5 SE Mcdonald           39.74N 101.30W
08/07/2023  E1.00 inch       Rawlins            KS   Trained Spotter

            Spotter reported ongoing dime to quarter
            sized hail that has been falling for 10
            minutes as of 3:57 PM MT.

0501 PM     Hail             Gem                     39.43N 100.89W
08/07/2023  E1.00 inch       Thomas             KS   Public

            Social media report of mostly pea sized
            hail, but with a picture of a few quarter
            sized hail. Time estimated from radar.

0504 PM     Hail             Colby                   39.39N 101.05W
08/07/2023  E1.00 inch       Thomas             KS   Trained Spotter

            Quarter size hail reported in Colby at 5:04
            pm MDT.

0508 PM     Hail             1 ENE Colby             39.39N 101.04W
08/07/2023  E1.00 inch       Thomas             KS   Public

            Social media report of quarter sized hail on
            Cherokee Drive in Colby. Time estimated from
            radar.

0534 PM     Hail             Bird City               39.75N 101.53W
08/07/2023  M1.00 inch       Cheyenne           KS   Public

            Reported via social media. Dime to quarter
            sized hail. Ended at 5:39 PM MDT.

0545 PM     Hail             1 N Goodland            39.36N 101.71W
08/07/2023  M1.00 inch       Sherman            KS   Trained Spotter

0546 PM     Hail             1 NNE Goodland          39.37N 101.70W
08/07/2023  E1.00 inch       Sherman            KS   NWS Employee

            Quarter sized hail reports at NWS Goodland
            office.

0548 PM     Hail             Goodland                39.35N 101.72W
08/07/2023  E1.00 inch       Sherman            KS   NWS Employee

            Off-duty employee reported quarters in town.

0549 PM     Hail             9 SSW Bonny Reservoir   39.50N 102.26W
08/07/2023  E1.00 inch       Kit Carson         CO   Public

            Report from mPING: Quarter (1.00 in.).

0618 PM     Hail             Oakley                  39.13N 100.86W
08/07/2023  E1.00 inch       Logan              KS   Public

            Report from mPING: Quarter (1.00 in.).

0620 PM     Hail             1 SSW Caruso            39.33N 101.82W
08/07/2023  E1.00 inch       Sherman            KS   Public

            Social media report of pea to quarter sized
            hail. Time estimated from radar.

0622 PM     Hail             Oakley                  39.13N 100.85W
08/07/2023  M1.00 inch       Logan              KS   Public

            Reported via social media.

0624 PM     Hail             Oakley                  39.13N 100.86W
08/07/2023  M1.00 inch       Logan              KS   Emergency Mngr

0624 PM     Hail             4 W Oakley              39.13N 100.92W
08/07/2023  E1.00 inch       Logan              KS   Public

            Ongoing quarter sized hail.

0624 PM     Hail             Oakley                  39.13N 100.86W
08/07/2023  E1.00 inch       Logan              KS   Public

            Report from mPING: Quarter (1.00 in.).

0644 PM     Hail             14 N Sharon Springs     39.10N 101.74W
08/07/2023  M1.00 inch       Wallace            KS   NWS Employee

            Off-duty employee.

0745 PM     Hail             13 NNE Selkirk          38.65N 101.48W
08/07/2023  M1.00 inch       Wichita            KS   Trained Spotter

            Broken skylights were reported.

0238 PM     Hail             9 NW Max                40.20N 101.53W
08/07/2023  E0.88 inch       Dundy              NE   Public

            Delayed report via social media. Dime to
            nickel sized hail observed.

0330 PM     Hail             9 NNW Culbertson        40.34N 100.92W
08/07/2023  E0.88 inch       Hitchcock          NE   Trained Spotter

            Spotter observed pea to nickel sized hail.

0450 PM     Hail             2 WNW Vernon            39.95N 102.32W
08/07/2023  E0.88 inch       Yuma               CO   Trained Spotter

0508 PM     Hail             Colby                   39.39N 101.05W
08/07/2023  E0.88 inch       Thomas             KS   Emergency Mngr

0805 PM     Hail             2 E Leoti               38.48N 101.32W
08/07/2023  E0.88 inch       Wichita            KS   Emergency Mngr

0815 PM     Hail             4 W Leoti               38.48N 101.42W
08/07/2023  E0.88 inch       Wichita            KS   Emergency Mngr

            Accumulating dime sized hail observed.
            Highway was covered in hail.

0345 PM     Hail             Benkelman               40.05N 101.53W
08/07/2023  M0.75 inch       Dundy              NE   Emergency Mngr

            Delayed report. Dime to penny sized hail
            observed in Benkelman.

0440 PM     Hail             2 S Mcdonald            39.76N 101.37W
08/07/2023  E0.75 inch       Rawlins            KS   Public

            Caller reported a busted windshield due to
            the hail. Location is estimated.

0508 PM     Hail             3 NW Colby              39.41N 101.08W
08/07/2023  E0.75 inch       Thomas             KS   Public

            Report from mPING: Dime (0.75 in.).

0526 PM     Hail             Saint Francis           39.77N 101.80W
08/07/2023  E0.75 inch       Cheyenne           KS   Public

            Report from mPING: Penny (0.75 in.).

0547 PM     Hail             Goodland                39.35N 101.71W
08/07/2023  E0.75 inch       Sherman            KS   Public

            Report from mPING: Penny (0.75 in.).

0547 PM     Hail             1 WNW Goodland          39.36N 101.73W
08/07/2023  E0.75 inch       Sherman            KS   Public

            Report from mPING: Penny (0.75 in.).

0548 PM     Hail             Goodland                39.35N 101.70W
08/07/2023  E0.75 inch       Sherman            KS   Public

            Report from mPING: Penny (0.75 in.).

0738 PM     Hail             1 NNE Goodland          39.37N 101.70W
08/07/2023  M0.70 inch       Sherman            KS   Official NWS Obs

            Pea to dime size hail observed at NWS
            Goodland at 7:38 pm MDT.

0745 PM     Hail             13 NNW Leoti            38.65N 101.46W
08/07/2023  E0.70 inch       Wichita            KS   Public

0815 PM     Hail             Leoti                   38.48N 101.36W
08/07/2023  E0.70 inch       Wichita            KS   Emergency Mngr

0508 PM     Hail             1 NNW Colby             39.39N 101.05W
08/07/2023  E0.50 inch       Thomas             KS   Public

            Report from mPING: Half-inch (0.50 in.).

0543 PM     Hail             Goodland                39.35N 101.72W
08/07/2023  E0.50 inch       Sherman            KS   Public

            Report from mPING: Half-inch (0.50 in.).

0615 PM     Hail             Oakley                  39.13N 100.86W
08/07/2023  E0.50 inch       Logan              KS   Public

            Report from mPING: Half-inch (0.50 in.).

0420 PM     Hail             6 SSW Yuma              40.05N 102.77W
08/07/2023  E0.25 inch       Yuma               CO   Trained Spotter

            Spotter reported pea sized hail and heavy
            rain that lasted 2 minutes.

0427 PM     Hail             Beardsley               39.81N 101.23W
08/07/2023  E0.25 inch       Rawlins            KS   Public

            Pea sized hail reported at location via
            social media.

0536 PM     Hail             Goodland                39.35N 101.71W
08/07/2023  M0.25 inch       Sherman            KS   Trained Spotter

            Pea sized hail reported at location.

0445 AM     Fog              2 E Mccook              40.20N 100.58W
08/08/2023  M0.25 mi         Red Willow         NE   ASOS

            ASOS station KMCK McCook Airport.

0335 PM     Landspout        1 W Bird City           39.75N 101.55W
08/07/2023                   Cheyenne           KS   NWS Employee

            Brief landspout around 1 mile west of Bird
            City at 3:35 pm MDT.

0529 PM     Dust Storm       2 E Brewster            39.36N 101.34W
08/07/2023                   Thomas             KS   NWS Employee

            Off-Duty employee reported 1/4 mile
            visibility as dust associated with storm
            outflow moved through the Brewster area.
            Gusts to 42 mph measured via a Davis held at
            8 feet.

0602 PM     Tstm Wnd Dmg     10 S Culbertson         40.09N 100.84W
08/07/2023                   Hitchcock          NE   Public

            Report and pictures of roof blown off home
            approximately 10 miles south of Culbertson.
            Received via Facebook.

0645 PM     Flash Flood      Goodland                39.35N 101.70W
08/07/2023                   Sherman            KS   Emergency Mngr

            Emergency Manager relayed report of street
            flooding on Walnut Ave with a water depth of
            3 feet. Unsure of the exact intersection.

0702 PM     Tstm Wnd Dmg     10 S Sharon Springs     38.76N 101.74W
08/07/2023                   Wallace            KS   Public

            Report from mPING: 1-inch tree limbs broken;
            Shingles blown off.

0750 PM     Flash Flood      9 N Bird City           39.89N 101.53W
08/07/2023                   Cheyenne           KS   Public

            Delayed report of flash flooding with photos
            and videos 9.5 miles north of Bird City by
            Big Timber Creek. 1.86 inches of rain
            reported from the storms. Reporter stated
            that they were not able to make it home due
            to flooding.

&&
Local storm report, Aug 8, 12:48 PM MST, 3 hours 9 minutes before
Preliminary Local Storm Report
National Weather Service Goodland KS
148 PM MDT Tue Aug 8 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0526 PM     Dust Storm       4 W Brewster            39.37N 101.45W
08/07/2023                   Sherman            KS   Public

            Could only see 15-20 feet in the dust.
            Received the dust storm warning then within
            a few seconds the dust storm was at his
            location.

&&

JTL
Local storm report, Aug 8, 1:20 PM MST, 2 hours 37 minutes before
Preliminary Local Storm Report
National Weather Service Goodland KS
220 PM MDT Tue Aug 8 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0602 PM     Tstm Wnd Dmg     10 S Culbertson         40.09N 100.84W
08/07/2023                   Hitchcock          NE   Public

            Update to previous tstm wnd dmg report from
            10 S Culbertson. Report and pictures of roof
            blown off home approximately 10 miles south
            of Culbertson. Barn door also torn off.
            Received via Facebook.

&&

JTL

The radar

The Goodland radar (KGLD), 125 km away, was scanning. The volume nearest the first event began at 22:55 UTC.

Open the radar archive at this moment

Event by event

15 hail, 8 tornado, 4 thunderstorm wind. Local standard time, as filed.

Tornado, Yuma

When
August 8, 3:57 PM MST to 4:25 PM MST
Where
Yuma County, 3.94 mi W of Yuma Arpt to 1.41 mi WNW of Yuma Arpt
Rating
EF3
Path length
9.2 mi
Path width
212 yd
Property damage
$1.0 million
Reported by
NWS Storm Survey
Coordinates
40.106, -102.794

The tornado began in far eastern Washington County near the town of Hyde and moved east-southeast into northwest Yuma County. In Yuma County, the tornado remained southwest of the city of Yuma, where it looped around three times along the path causing damage to irrigation pivots, trees, and numerous power poles. The tornado dissipated during a fourth large loop. There was also significant damage to a residential property, three grain bins, and a machine shed towards the end of the path. Image of the actual tornado path is attached.

Hail, Yuma

When
August 8, 4:08 PM MST
Where
Yuma County, 4.14 mi NE of Yuma
Measured
1.75 in hail
Reported by
Social Media
Coordinates
40.165, -102.668

Hail, Yuma

When
August 8, 4:08 PM MST
Where
Yuma County, 2.93 mi W of Yuma
Measured
4 in hail
Reported by
Storm Chaser
Coordinates
40.120, -102.775

Hail, Yuma

When
August 8, 4:16 PM MST
Where
Yuma County, 3.23 mi ESE of Yuma Arpt
Measured
1 in hail
Reported by
Public
Coordinates
40.089, -102.661

Hail, Yuma

When
August 8, 4:18 PM MST
Where
Yuma County, 3.45 mi E of Yuma Arpt
Measured
1.75 in hail
Reported by
Public
Coordinates
40.104, -102.655

Thunderstorm Wind, Yuma

When
August 8, 4:20 PM MST
Where
Yuma County, 1.35 mi S of Yuma Arpt
Measured
52 kt (60 mph) estimated gust
Property damage
$1,000
Reported by
NWS Storm Survey
Coordinates
40.081, -102.723

Top branches of a tree snapped off and laying towards the southeast.

Thunderstorm Wind, Yuma

When
August 8, 4:20 PM MST
Where
Yuma County, 1.61 mi S of Yuma Arpt
Measured
87 kt (100 mph) estimated gust
Property damage
$145,000
Reported by
NWS Storm Survey
Coordinates
40.077, -102.720

Five power poles were blown down or snapped along Highway 59.

Tornado, Yuma

When
August 8, 4:30 PM MST to 4:46 PM MST
Where
Yuma County, 4.29 mi SW of Schramm to 8.11 mi SSE of Yuma Arpt
Rating
EFU
Path length
5.28 mi
Path width
200 yd
Reported by
NWS Storm Survey
Coordinates
40.060, -102.642

A multivortex tornado was observed moving between County Roads 34 and 29 across open land. No damage was reported.

Hail, Yuma

When
August 8, 4:40 PM MST
Where
Yuma County, 5.18 mi SSW of Schramm
Measured
3 in hail
Reported by
Social Media
Coordinates
40.032, -102.621

Hail, Yuma

When
August 8, 4:40 PM MST
Where
Yuma County, 4.59 mi SW of Yuma Arpt
Measured
1.75 in hail
Reported by
Trained Spotter
Coordinates
40.049, -102.776

Up to golf ball hail observed.

Hail, Yuma

When
August 8, 4:48 PM MST
Where
Yuma County, 4.72 mi S of Yuma Arpt
Measured
1.25 in hail
Reported by
Public
Coordinates
40.032, -102.719

Hail, Yuma

When
August 8, 4:55 PM MST
Where
Yuma County, 7.06 mi N of Abarr
Measured
2.75 in hail
Reported by
Public
Coordinates
39.952, -102.706

Multiple reports of large hail from storm chasers on the highway and a homeowner next to the highway of ping pong ball to baseball sized hail.

Hail, Yuma

When
August 8, 5:00 PM MST
Where
Yuma County, 6.25 mi N of Abarr
Measured
2.5 in hail
Reported by
Public
Coordinates
39.940, -102.709

Hail, Yuma

When
August 8, 5:00 PM MST
Where
Yuma County, 5.67 mi N of Abarr
Measured
4 in hail
Reported by
Storm Chaser
Coordinates
39.932, -102.708

A storm chaser reported 3.5 inch to 4 inch hail near the intersection of Highway 59 and County Road 25.

Tornado, Yuma

When
August 8, 5:04 PM MST to 5:08 PM MST
Where
Yuma County, 3.77 mi N of Abarr to 2.18 mi N of Abarr
Rating
EF0
Path length
1.67 mi
Path width
193 yd
Reported by
NWS Storm Survey
Coordinates
39.904, -102.716

Chasers observed a tornado in the location with damage to corn crop circles found via Sentinel 2 imagery.

Thunderstorm Wind, Yuma

When
August 8, 5:19 PM MST
Where
Yuma County, 1.15 mi ESE of Abarr
Measured
52 kt (60 mph) estimated gust
Reported by
Trained Spotter
Coordinates
39.842, -102.701

Trained spotter estimated 60 mph winds as a supercell thunderstorm moved over the location.

Tornado, Yuma

When
August 8, 5:19 PM MST to 5:22 PM MST
Where
Yuma County, 1.69 mi ENE of Abarr to 2.5 mi E of Abarr
Rating
EFU
Path length
1 mi
Path width
150 yd
Reported by
NWS Storm Survey
Coordinates
39.855, -102.689

Multiple storm chasers reported a brief rope tornado over an open field. No damage was observed.

Tornado, Yuma

When
August 8, 5:23 PM MST to 5:32 PM MST
Where
Yuma County, 4.14 mi SE of Abarr to 5.06 mi SE of Abarr
Rating
EFU
Path length
0.93 mi
Path width
75 yd
Reported by
NWS Storm Survey
Coordinates
39.813, -102.659

A tornado remained in open fields, short of crossing County Road J. No damage was observed.

Tornado, Yuma

When
August 8, 6:00 PM MST to 6:14 PM MST
Where
Yuma County, 6.73 mi NE of Kirk to 7.06 mi NE of Kirk
Rating
EFU
Path length
0.45 mi
Path width
150 yd
Reported by
NWS Storm Survey
Coordinates
39.689, -102.510

The tornado faded and reappeared more than once during its lifetime. The tornado ended before crossing CR S, remaining over an open field. No damage was observed.

Hail, Yuma

When
August 8, 6:07 PM MST to 6:16 PM MST
Where
Yuma County, 0.43 mi ENE of Idalia
Measured
1.5 in hail
Reported by
Public
Coordinates
39.703, -102.293

Multiple reports of dime to ping pong ball sized hail observed in Idalia over a duration of nine minutes.

Hail, Yuma

When
August 8, 6:10 PM MST
Where
Yuma County, 4.25 mi W of Idalia
Measured
2.5 in hail
Reported by
Social Media
Coordinates
39.702, -102.380

Social media report with pictures of hail ranging from golf ball to tennis ball in size.

Hail, Yuma

When
August 8, 6:22 PM MST
Where
Yuma County, 8.29 mi ENE of Kirk
Measured
5.25 in hail
Reported by
Storm Chaser
Coordinates
39.658, -102.452

Hail measured at 5.25 inches fell on Hwy 36. This hail stone was later determined to be a new Colorado state record for largest hail stone.

Tornado, Yuma

When
August 8, 6:25 PM MST to 6:40 PM MST
Where
Yuma County, 7.82 mi SW of Idalia to 9.79 mi SSW of Idalia
Rating
EF2
Path length
3.14 mi
Path width
150 yd
Continued into
Kit Carson, Co (GLD)
Property damage
$30,000
Reported by
NWS Storm Survey
Coordinates
39.614, -102.395

Based on damage to power poles the tornado tracked south than east along CR 2. The tornado damaged half an irrigation pivot and snapped nine power poles along CR 2. Then it shifted south again before reaching the CR2/ CR Y intersection. Based on radar data the tornado continued south-southeast into Kit Carson County, ending northwest of the CR MM/CR 44 intersection.

Tornado, Kit Carson

When
August 8, 6:40 PM MST to 6:47 PM MST
Where
Kit Carson County, 18.08 mi NNW of Burlington Arpt to 15.93 mi NNW of Burlington Arpt
Rating
EF2
Path length
2.15 mi
Path width
150 yd
Reported by
NWS Storm Survey
Coordinates
39.571, -102.376

Based on damage to power poles the tornado tracked south then east along CR 2. The tornado damaged half an irrigation pivot and snapped nine power poles along CR 2. Then it shifted south again before reaching the CR2/ CR Y intersection. Based on radar data the tornado continued south-southeast into Kit Carson County, ending northwest of the CR MM/CR 44 intersection. No damage was observed in Kit Carson County.

Hail, Kit Carson

When
August 8, 8:10 PM MST
Where
Kit Carson County, 1.64 mi ENE of Peconic
Measured
1 in hail
Reported by
Public
Coordinates
39.325, -102.100

Hail was observed at MM 447 on I-70.

Thunderstorm Wind, Kit Carson

When
August 8, 8:10 PM MST
Where
Kit Carson County, 1.41 mi SSE of Peconic
Measured
61 kt (70 mph) estimated gust
Property damage
$1,000
Reported by
Social Media
Coordinates
39.303, -102.116

A few healthy 2 inch tree limbs were reported down.

Hail, Cheyenne

When
August 8, 9:25 PM MST
Where
Cheyenne County, 11.84 mi N of Aroya
Measured
2.75 in hail
Property damage
$10,000
Reported by
Broadcast Media
Coordinates
39.021, -103.135

Baseball size hail broke numerous double paned windows in a home in extreme northwest Cheyenne County. A few miles away, quarter to golf ball size hail accumulated to a depth of six inches.

What these are

Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Colorado in 2023Every state in 2023This day in weather historyThe tornado archive for Colorado, 2023Warnings in Colorado, August 2023

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: 1136351, 1133384, 1133385, 1133391, 1133388, 1133392, 1133400, 1136352, 1133438, 1133493, 1133494, 1133383, 1133496, 1133499, 1136353, 1133495, 1136354, 1136355, 1136403, 1133503, 1133500, 1133751, 1136404, 1136405, 1134542, 1134543, 1136349.