Alert archive / Colorado / Tornado Warnings in 2022

Tornado Warning 4, NWS Denver/Boulder, CO

July 6, 2022Arapahoe County, Elbert County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jul 6, 2022, 2:54 PM MDT for Arapahoe County, Elbert County, Colorado. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 6, 2022, 2:54 PM MDT (20:54 UTC)
Expired
Jul 6, 2022, 3:30 PM MDT
In force
36 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

Counties Arapahoe County, CO, Elbert County, CO

The radar

The Denver radar (KFTG), 31 km from the middle of the area, began a volume at 20:55 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.

IssuedProductOfficeLasted
Jul 6, 2:09 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.9 hours before the alert went out and 108 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, Denver, CO at 12:00Z on 2022-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 151 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, Denver, CO at 12:00Z on 2022-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.193958Sfc1 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
151 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1125 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

807 
WFUS55 KBOU 062054
TORBOU
COC005-039-062130-
/O.NEW.KBOU.TO.W.0004.220706T2054Z-220706T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Denver CO
254 PM MDT Wed Jul 6 2022

The National Weather Service in Denver Colorado has issued a

* Tornado Warning for...
  Northwestern Elbert County in east central Colorado...
  South central Arapahoe County in northeastern Colorado...

* Until 330 PM MDT.
    
* At 254 PM MDT, a severe thunderstorm capable of producing a tornado
  was located 11 miles north of Kiowa, or 30 miles southeast of
  Denver, moving north at 20 mph.

  HAZARD...Tornado and golf ball 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
  northwestern Elbert and south central Arapahoe Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This Tornado Warning replaces the Severe Thunderstorm Warning issued
for the same area.

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 3946 10435 3946 10452 3962 10453 3962 10429
TIME...MOT...LOC 2054Z 188DEG 16KT 3951 10445 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

RPK
2 follow-up statements
697 
WWUS55 KBOU 062107
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
307 PM MDT Wed Jul 6 2022

COC005-039-062130-
/O.CON.KBOU.TO.W.0004.000000T0000Z-220706T2130Z/
Elbert CO-Arapahoe CO-
307 PM MDT Wed Jul 6 2022

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM MDT FOR
NORTHWESTERN ELBERT AND SOUTH CENTRAL ARAPAHOE COUNTIES...
    
At 306 PM MDT, a severe thunderstorm capable of producing a tornado
was located 11 miles south of Bennett, or 29 miles east of Denver,
moving north at 20 mph.

HAZARD...Tornado and half dollar 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
northwestern Elbert and south central Arapahoe Counties.

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.

&&

LAT...LON 3951 10433 3951 10452 3962 10453 3962 10429
TIME...MOT...LOC 2106Z 188DEG 16KT 3957 10444 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.25 IN

$$

RPK
980 
WWUS55 KBOU 062120
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
320 PM MDT Wed Jul 6 2022

COC005-039-062130-
/O.EXP.KBOU.TO.W.0004.000000T0000Z-220706T2130Z/
Elbert CO-Arapahoe CO-
320 PM MDT Wed Jul 6 2022

...THE TORNADO WARNING FOR NORTHWESTERN ELBERT AND SOUTH CENTRAL
ARAPAHOE COUNTIES WILL EXPIRE AT 330 PM MDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
northeastern and east central Colorado.

LAT...LON 3951 10433 3951 10452 3962 10453 3962 10429
TIME...MOT...LOC 2120Z 188DEG 16KT 3963 10443 

$$

RPK

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 6, 12:40 PM MDTAreal Flood AdvisoryBOULarimer95 min
Jul 6, 1:34 PM MDTSpecial Weather StatementBOUBoulder26 min
Jul 6, 1:55 PM MDTAreal Flood AdvisoryBOULarimer95 min
Jul 6, 1:59 PM MDTSpecial Weather StatementBOUElbert31 min
Jul 6, 2:02 PM MDTSevere Thunderstorm WarningBOUElbert43 min
Jul 6, 2:09 PM MDTSevere Thunderstorm WarningBOUElbert51 min
Jul 6, 2:43 PM MDTSevere Thunderstorm Warning Considerable damage threatBOUElbert, Lincoln47 min
Jul 6, 2:46 PM MDTSevere Thunderstorm Warning Considerable damage threatBOUArapahoe, Elbert44 min
Jul 6, 2:57 PM MDTFlash Flood WarningBOULarimer3 hr
Jul 6, 3:01 PM MDTSevere Thunderstorm WarningBOUDouglas, Jefferson29 min
Jul 6, 3:19 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe41 min
Jul 6, 3:24 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld36 min
Jul 6, 3:26 PM MDTSevere Thunderstorm Warning Considerable damage threatBOULincoln49 min
Jul 6, 3:28 PM MDTSevere Thunderstorm WarningBOUDouglas47 min
Jul 6, 3:42 PM MDTTornado WarningBOULincoln33 min
Jul 6, 3:44 PM MDTSevere Thunderstorm WarningBOUWeld46 min
Jul 6, 3:56 PM MDTTornado WarningBOUMorgan34 min
Jul 6, 3:59 PM MDTSevere Thunderstorm WarningBOUElbert31 min
Jul 6, 4:10 PM MDTTornado WarningBOUElbert20 min
Jul 6, 4:15 PM MDTSevere Thunderstorm WarningBOULincoln30 min
Jul 6, 4:29 PM MDTTornado WarningBOUMorgan16 min
Jul 6, 4:44 PM MDTTornado WarningBOUMorgan31 min
Jul 6, 4:57 PM MDTFlash Flood WarningBOUBoulder3 hr
Jul 6, 4:57 PM MDTTornado WarningBOUMorgan18 min
Jul 6, 5:43 PM MDTSpecial Weather StatementBOULincoln, Washington32 min

Nearby

Tornado Warnings in Colorado, 2022Every tornado warning in 2022Tornadoes in 2022

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.