Tornado Warning 9, NWS Denver/Boulder, CO

Issued

May 10, 2023, 3:57 PM MDT (21:57 UTC)

Expired

May 10, 2023, 4:30 PM MDT

In force

33 min

Issued by

NWS Denver/Boulder, CO

Area

Storm-based polygon

Tornado

Radar indicated

Hail

1.5 in

Counties Arapahoe County, CO, Douglas County, CO, Elbert County, CO

The Denver radar (KFTG), 35 km from the middle of the area, began a volume at 22:01 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.

449 
WFUS55 KBOU 102157
TORBOU
COC005-035-039-102230-
/O.NEW.KBOU.TO.W.0009.230510T2157Z-230510T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Denver CO
357 PM MDT Wed May 10 2023

The National Weather Service in Denver Colorado has issued a

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

* Until 430 PM MDT.
    
* At 357 PM MDT, a severe thunderstorm capable of producing a tornado
  was located near Ponderosa Park, or 25 miles southeast of Denver,
  moving northeast at 35 mph.

  HAZARD...Tornado and ping pong 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
  northeastern Douglas, 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 3936 10461 3941 10480 3965 10466 3961 10428
TIME...MOT...LOC 2157Z 210DEG 29KT 3945 10465 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN

$$

HIRIS

181 
WWUS55 KBOU 102205
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
405 PM MDT Wed May 10 2023

COC005-035-039-102230-
/O.CON.KBOU.TO.W.0009.000000T0000Z-230510T2230Z/
Douglas CO-Elbert CO-Arapahoe CO-
405 PM MDT Wed May 10 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM MDT FOR
NORTHEASTERN DOUGLAS...NORTHWESTERN ELBERT AND SOUTH CENTRAL ARAPAHOE
COUNTIES...
        
At 404 PM MDT, a severe thunderstorm capable of producing a tornado
was located 7 miles north of Ponderosa Park, or 23 miles southeast of
Denver, moving northeast at 35 mph.

HAZARD...Tornado and golf ball size hail.

SOURCE...Weather spotters reported a funnel cloud.

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...
Southern Aurora, eastern Parker and Ponderosa Park. 

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 3940 10456 3948 10475 3965 10465 3961 10428
      3960 10429
TIME...MOT...LOC 2204Z 210DEG 29KT 3951 10460 

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

$$

HIRIS

723 
WWUS55 KBOU 102226
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
426 PM MDT Wed May 10 2023

COC005-035-039-102236-
/O.EXP.KBOU.TO.W.0009.000000T0000Z-230510T2230Z/
Douglas CO-Elbert CO-Arapahoe CO-
426 PM MDT Wed May 10 2023

...THE TORNADO WARNING FOR NORTHEASTERN DOUGLAS...NORTHWESTERN ELBERT
AND SOUTH CENTRAL ARAPAHOE COUNTIES WILL EXPIRE AT 430 PM MDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However hail, 
gusty winds and heavy rain are still possible with this thunderstorm.

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

LAT...LON 3940 10456 3948 10475 3965 10465 3961 10428
      3960 10429
TIME...MOT...LOC 2226Z 210DEG 29KT 3965 10449 

$$

RPK

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

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.