Tornado Warning 37, NWS Denver/Boulder, CO

Issued

Aug 19, 2021, 3:12 PM MDT (21:12 UTC)

Expired

Aug 19, 2021, 3:30 PM MDT

In force

18 min

Issued by

NWS Denver/Boulder, CO

Area

Storm-based polygon

Tornado

Radar indicated

Hail

0.75 in

County Douglas County, CO

The Denver radar (KFTG), 36 km from the middle of the area, began a volume at 21:15 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.

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

608 
WFUS55 KBOU 192112
TORBOU
COC035-192130-
/O.NEW.KBOU.TO.W.0037.210819T2112Z-210819T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Denver CO
312 PM MDT Thu Aug 19 2021

The National Weather Service in Denver Colorado has issued a

* Tornado Warning for...
  Northeastern Douglas County in northeastern Colorado...

* Until 330 PM MDT.
    
* At 312 PM MDT, a severe thunderstorm capable of producing a tornado
  was located over The Pinery, or 21 miles southeast of Denver,
  moving northeast at 20 mph.

  HAZARD...Tornado.

  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 dangerous storm will be near...
  Ponderosa Park around 325 PM MDT.
  Parker around 330 PM MDT.

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 3955 10483 3957 10474 3957 10467 3950 10466
      3941 10466 3938 10480
TIME...MOT...LOC 2112Z 216DEG 17KT 3945 10477 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

RPK

817 
WWUS55 KBOU 192126 RRA
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
326 PM MDT Thu Aug 19 2021

COC035-192136-
/O.EXP.KBOU.TO.W.0037.000000T0000Z-210819T2130Z/
Douglas CO-
326 PM MDT Thu Aug 19 2021

...THE TORNADO WARNING FOR NORTHEASTERN DOUGLAS COUNTY WILL EXPIRE AT
330 PM MDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.  However small hail
and heavy rain are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 800 PM MDT for
northeastern and east central Colorado.

LAT...LON 3955 10483 3957 10474 3957 10467 3950 10466
      3941 10466 3938 10480
TIME...MOT...LOC 2126Z 216DEG 17KT 3950 10472 

$$

RPK

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

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.