Alert archive / Colorado / Tornado Warnings in 2023

Tornado Warning 49, NWS Goodland, KS

August 8, 2023Yuma County, Colorado

NWS Goodland, KS issued this tornado warning at Aug 8, 2023, 5:08 PM MDT for Yuma County, Colorado. It was in force for 37 min. 9 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 8, 2023, 5:08 PM MDT (23:08 UTC)
Expired
Aug 8, 2023, 5:45 PM MDT
In force
37 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Tornado
Radar indicated
Damage threat
Considerable
Hail
4.0 in

County Yuma County, CO

The radar

The Goodland radar (KGLD), 117 km from the middle of the area, began a volume at 23:08 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.

What was reported inside it

TimeReportWhereRemark
Aug 8, 5:08 PM MDTHAIL 43 W Yuma, CO
Aug 8, 5:13 PM MDTTORNADO5 S Yuma, CO5 power poles snapped along Hwy 59. Time estimated.
Aug 8, 5:16 PM MDTHAIL 14 Se Yuma, COReport from mPING: Quarter (1.00 in.).
Aug 8, 5:18 PM MDTHAIL 1.754 Ese Yuma, COHail was ongoing at the location.
Aug 8, 5:20 PM MDTTSTM WND DMG3 S Yuma, CODelayed report. Top branches of a tree snapped off and laying towards the southeast. Time estimated via radar.
Aug 8, 5:20 PM MDTTSTM WND DMG3 S Yuma, COCorrects previous tornado report from 5 S Yuma from a NWS Storm Survey. 5 power poles snapped along Hwy 59. Time estimated.
Aug 8, 5:30 PM MDTTORNADO7 Nnw Heartstrong, CODelayed report via social media. Multi-vortex tornado reported roughly 7-8 miles southeast of Yuma. Location approximate based on radar. Tornado has lifted prior to 5:51 PM MDT.
Aug 8, 5:34 PM MDTHAIL 36 Nnw Heartstrong, CODelayed report via social media with photo of hailstones. Time estimated.
Aug 8, 5:45 PM MDTHAIL 1.756 Ssw Yuma, COUp to golf ball hail observed. Power was out at the residence.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 8, 2:37 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.1 hours before the alert went out and 210 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.

Skew-T log-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 2023-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2023-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
4 J/kg
Mixed-layer CIN
-289 J/kg
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

096 
WFUS53 KGLD 082308
TORGLD
COC125-082345-
/O.NEW.KGLD.TO.W.0049.230808T2308Z-230808T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Goodland KS
508 PM MDT Tue Aug 8 2023

The National Weather Service in Goodland has issued a

* Tornado Warning for...
  West central Yuma County in northeastern Colorado...

* Until 545 PM MDT.
    
* At 507 PM MDT, a large and extremely dangerous tornado was located
  over Yuma, moving east at 15 mph.

  This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

  HAZARD...Damaging tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...You are in a life-threatening situation. Flying debris 
           may be deadly to those caught without shelter. Mobile 
           homes will be destroyed. Considerable damage to homes, 
           businesses, and vehicles is likely and complete 
           destruction is possible.

* The tornado will be near...
  Yuma around 510 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a large, extremely dangerous and potentially deadly
tornado is developing. To protect your life, TAKE COVER NOW! Move to
a basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 4016 10256 3998 10259 4004 10279 4009 10280
      4016 10279
TIME...MOT...LOC 2307Z 284DEG 13KT 4011 10275 

TORNADO...RADAR INDICATED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...4.00 IN

$$

Lundquist
3 follow-up statements
025 
WWUS53 KGLD 082314
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
514 PM MDT Tue Aug 8 2023

COC125-082345-
/O.CON.KGLD.TO.W.0049.000000T0000Z-230808T2345Z/
Yuma CO-
514 PM MDT Tue Aug 8 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM MDT FOR WEST
CENTRAL YUMA COUNTY...
    
At 514 PM MDT, a large and extremely dangerous tornado was located
over Yuma, moving southeast at 10 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Radar indicated rotation.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be destroyed. Considerable damage to homes, 
         businesses, and vehicles is likely and complete destruction 
         is possible.

This tornadic thunderstorm will remain over mainly rural areas of
west central Yuma County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a large, extremely dangerous and potentially deadly
tornado is developing. To protect your life, TAKE COVER NOW! Move to
a basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 4016 10256 3998 10259 4004 10279 4009 10280
      4015 10279
TIME...MOT...LOC 2314Z 296DEG 7KT 4010 10275 

TORNADO...RADAR INDICATED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...4.00 IN

$$

Lundquist
038 
WWUS53 KGLD 082319
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
519 PM MDT Tue Aug 8 2023

COC125-082345-
/O.CON.KGLD.TO.W.0049.000000T0000Z-230808T2345Z/
Yuma CO-
519 PM MDT Tue Aug 8 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM MDT FOR WEST
CENTRAL YUMA COUNTY...
    
At 519 PM MDT, a confirmed large and extremely dangerous tornado was
located near Yuma, moving east at 15 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Weather spotters confirmed tornado.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be destroyed. Considerable damage to homes, 
         businesses, and vehicles is likely and complete destruction 
         is possible.

Locations impacted include...
Yuma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, TAKE COVER NOW! Move
to a basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 4016 10256 3998 10259 4004 10279 4009 10280
      4015 10279
TIME...MOT...LOC 2319Z 283DEG 14KT 4010 10271 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...2.75 IN

$$

Lundquist
535 
WWUS53 KGLD 082330
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
530 PM MDT Tue Aug 8 2023

COC125-082345-
/O.CON.KGLD.TO.W.0049.000000T0000Z-230808T2345Z/
Yuma CO-
530 PM MDT Tue Aug 8 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM MDT FOR WEST
CENTRAL YUMA COUNTY...
    
At 530 PM MDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southeast of Yuma, moving southeast at 35 mph.

HAZARD...Tornado and baseball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
west central Yuma County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 4011 10257 3998 10259 4004 10275 4008 10275
TIME...MOT...LOC 2330Z 306DEG 30KT 4004 10262 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.75 IN

$$

Lundquist

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 7, 6:06 PM MDTSevere Thunderstorm WarningGLDKit Carson54 min
Aug 7, 6:54 PM MDTSpecial Weather StatementGLDCheyenne21 min
Aug 7, 7:00 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson60 min
Aug 7, 7:57 PM MDTSpecial Weather StatementGLDCheyenne33 min
Aug 7, 8:05 PM MDTSpecial Weather StatementGLDCheyenne25 min
Aug 8, 4:11 PM MDTSevere Thunderstorm Warning Considerable damage threatGLDYuma64 min
Aug 8, 4:44 PM MDTTornado WarningGLDYuma46 min
Aug 8, 5:12 PM MDTSevere Thunderstorm Warning Destructive damage threatGLDYuma93 min
Aug 8, 5:43 PM MDTTornado WarningGLDYuma32 min

Nearby

Tornado Warnings in Colorado, 2023Every tornado warning in 2023Tornadoes in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.