Alert archive / Colorado / Tornado Warnings in 2021

Tornado Warning 6, NWS Denver/Boulder, CO

May 22, 2021Morgan County, Washington County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 22, 2021, 1:54 PM MDT for Morgan County, Washington County, Colorado. It was in force for 36 min. 2 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: May 22, 2021, 1:54 PM MDT (19:54 UTC)
Expired: May 22, 2021, 2:30 PM MDT
In force: 36 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

Counties Morgan County, CO, Washington County, CO

The radar

The Denver radar (KFTG), 108 km from the middle of the area, began a volume at 19:53 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

Time	Report	Where	Remark
May 22, 1:58 PM MDT	HAIL 1.5	5 Wnw Midway, CO	M149, CHASING.
May 22, 2:03 PM MDT	TORNADO	1 Sw Midway, CO	BRIEF, WEAK TORNADO. HAS DISSIPATED.

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.

Issued	Product	Office	Lasted
May 22, 12:20 PM MDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 7.9 hours before the alert went out and 45 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1528 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

708 
WFUS55 KBOU 221954
TORBOU
COC087-121-222030-
/O.NEW.KBOU.TO.W.0006.210522T1954Z-210522T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Denver CO
154 PM MDT Sat May 22 2021

The National Weather Service in Denver Colorado has issued a

* Tornado Warning for...
  East central Morgan County in northeastern Colorado...
  North central Washington County in northeastern Colorado...

* Until 230 PM MDT.

* At 154 PM MDT, a confirmed tornado was located 4 miles west of
  Midway, or 14 miles west of Akron, moving north at 25 mph.

  HAZARD...Damaging tornado and quarter size hail.

  SOURCE...Weather spotters confirmed tornado.

  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.

* Locations impacted include...
  Hillrose and Midway. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 4011 10339 4016 10359 4045 10354 4039 10324
TIME...MOT...LOC 1954Z 192DEG 23KT 4021 10348 

TORNADO...OBSERVED
HAIL...1.00IN

$$

DANIELSON

1 follow-up statement

955 
WWUS55 KBOU 222017
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
217 PM MDT Sat May 22 2021

COC087-222027-
/O.CAN.KBOU.TO.W.0006.000000T0000Z-210522T2030Z/
Morgan CO-
217 PM MDT Sat May 22 2021

...THE TORNADO WARNING FOR EAST CENTRAL MORGAN COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM MDT for northeastern
Colorado.

LAT...LON 4025 10331 4029 10343 4043 10345 4039 10324
TIME...MOT...LOC 2017Z 192DEG 23KT 4036 10344 

$$

COC121-222030-
/O.CON.KBOU.TO.W.0006.000000T0000Z-210522T2030Z/
Washington CO-
217 PM MDT Sat May 22 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM MDT FOR
NORTHWESTERN WASHINGTON COUNTY...
    
At 217 PM MDT, a severe thunderstorm capable of producing a tornado
was located 4 miles northeast of Hillrose, or 17 miles northwest of
Akron, moving north at 25 mph.

HAZARD...Tornado and quarter 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 Washington 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.

&&

LAT...LON 4025 10331 4029 10343 4043 10345 4039 10324
TIME...MOT...LOC 2017Z 192DEG 23KT 4036 10344 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

DANIELSON

The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 7:18 PM MDT	Special Weather Statement	BOU	Morgan	27 min
May 21, 10:57 PM MDT	Special Weather Statement	BOU	Phillips, Sedgwick	48 min
May 22, 1:11 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Logan, Morgan, Washington	49 min
May 22, 1:28 PM MDT	Tornado Warning Tornado observed	BOU	Morgan	17 min
May 22, 1:45 PM MDT	Tornado Warning	BOU	Morgan	15 min
May 22, 1:56 PM MDT	Severe Thunderstorm Warning	BOU	Douglas, Elbert	28 min
May 22, 1:58 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Morgan, Washington	33 min
May 22, 2:05 PM MDT	Tornado Warning	BOU	Adams, Arapahoe	25 min
May 22, 2:18 PM MDT	Special Weather Statement	BOU	Adams	42 min
May 22, 2:43 PM MDT	Tornado Warning	BOU	Logan	17 min
May 22, 2:46 PM MDT	Severe Thunderstorm Warning	BOU	Phillips, Sedgwick	44 min
May 22, 2:57 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Sedgwick	48 min
May 22, 3:01 PM MDT	Tornado Warning	BOU	Logan	29 min
May 22, 3:16 PM MDT	Tornado Warning	BOU	Lincoln	29 min
May 22, 3:25 PM MDT	Severe Thunderstorm Warning	BOU	Weld	35 min
May 22, 3:48 PM MDT	Tornado Warning	BOU	Elbert, Lincoln	27 min
May 22, 3:53 PM MDT	Severe Thunderstorm Warning	BOU	Morgan, Weld	26 min
May 22, 4:13 PM MDT	Tornado Warning Tornado observed	BOU	Elbert, Lincoln	32 min
May 22, 4:42 PM MDT	Tornado Warning Tornado observed	BOU	Elbert, Lincoln	33 min
May 22, 5:16 PM MDT	Tornado Warning	BOU	Elbert, Lincoln	29 min
May 22, 5:27 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	33 min

Nearby

Tornado Warnings in Colorado, 2021 Every tornado warning in 2021 Tornadoes in 2021

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.