Alert archive / Colorado / Tornado Warnings in 2020

Tornado Warning 5, NWS Pueblo, CO

May 21, 2020Prowers County, Colorado

NWS Pueblo, CO issued this tornado warning at May 21, 2020, 4:18 PM MDT for Prowers County, Colorado. It was in force for 27 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 21, 2020, 4:18 PM MDT (22:18 UTC)
Expired: May 21, 2020, 4:45 PM MDT
In force: 27 min
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.75 in

County Prowers County, CO

The radar

The Goodland radar (KGLD), 148 km from the middle of the area, began a volume at 22:18 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 21, 4:18 PM MDT	HAIL 2.75	1 W Holly, CO
May 21, 4:28 PM MDT	HAIL 2.75	Holly, CO	MOSTLY 1/2 INCH TO PING PONG BALL SIZED, WITH A FEW UP TO BASEBALL SIZED.

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

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 10.3 hours before the alert went out and 197 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: 275 J/kg
Mixed-layer CIN: -409 J/kg
Mixed-layer LCL: 690 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -64 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

405 
WFUS55 KPUB 212218
TORPUB
COC099-212245-
/O.NEW.KPUB.TO.W.0005.200521T2218Z-200521T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Pueblo CO
418 PM MDT Thu May 21 2020

The National Weather Service in Pueblo has issued a

* Tornado Warning for...
  Northeastern Prowers County in southeastern Colorado...

* Until 445 PM MDT.

* At 417 PM MDT, A tornado was reported over Holly, or near 
  Coolidge, moving northeast at 30 mph. These are reports from 
  spotters in the region.

  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
  northeastern Prowers 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 3799 10213 3802 10220 3822 10211 3820 10204
      3805 10204
TIME...MOT...LOC 2217Z 220DEG 25KT 3806 10211 

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

KTS

1 follow-up statement

558 
WWUS55 KPUB 212242
SVSPUB

Severe Weather Statement
National Weather Service Pueblo CO
442 PM MDT Thu May 21 2020

COC099-212252-
/O.EXP.KPUB.TO.W.0005.000000T0000Z-200521T2245Z/
Prowers CO-
442 PM MDT Thu May 21 2020

...THE TORNADO WARNING FOR NORTHEASTERN PROWERS COUNTY WILL EXPIRE AT
445 PM MDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However large 
hail is still possible with this thunderstorm.

Remember, a Severe Thunderstorm Warning still remains in effect for
eastern Prowers until 5PM MDT.

LAT...LON 3799 10213 3802 10220 3822 10211 3820 10204
      3805 10204
TIME...MOT...LOC 2242Z 220DEG 25KT 3819 10197 

$$

KTS

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 21, 2:57 PM MDT	Fire Weather Watch	PUB	Alamosa, Baca, Bent, Conejos, Costilla, Crowley and 12 more	24 hr
May 21, 2:57 PM MDT	Red Flag Warning	PUB	Alamosa, Chaffee, Conejos, Costilla, Custer, Huerfano and 6 more	30 hr
May 21, 3:03 PM MDT	Special Weather Statement	PUB	Prowers	27 min
May 21, 3:30 PM MDT	Severe Thunderstorm Warning	PUB	Kiowa, Prowers	30 min
May 21, 3:48 PM MDT	Tornado Warning Tornado observed	PUB	Prowers	27 min
May 21, 3:59 PM MDT	Severe Thunderstorm Warning	PUB	Prowers	31 min
May 21, 4:30 PM MDT	Severe Thunderstorm Warning	PUB	Kiowa, Prowers	30 min
May 21, 4:32 PM MDT	Tornado Warning Tornado observed	PUB	Prowers	13 min
May 21, 4:34 PM MDT	Severe Thunderstorm Warning	PUB	Prowers	26 min
May 21, 4:49 PM MDT	Severe Thunderstorm Warning	PUB	Kiowa, Prowers	26 min
May 21, 5:14 PM MDT	Severe Thunderstorm Warning	PUB	Kiowa	14 min

Nearby

Tornado Warnings in Colorado, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.