Tornado Warning 36, NWS Denver/Boulder, CO

Issued

Jul 27, 2018, 4:28 PM MDT (22:28 UTC)

Expired

Jul 27, 2018, 5:00 PM MDT

In force

32 min

Issued by

NWS Denver/Boulder, CO

Area

Storm-based polygon

Tornado

Observed

Hail

0.75 in

County Arapahoe County, CO

The Denver radar (KFTG), 64 km from the middle of the area, began a volume at 22:29 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.

153 
WFUS55 KBOU 272228
TORBOU
COC005-272300-
/O.NEW.KBOU.TO.W.0036.180727T2228Z-180727T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Denver CO
428 PM MDT FRI JUL 27 2018

The National Weather Service in Denver Colorado has issued a

* Tornado Warning for...
  Southeastern Arapahoe County in northeastern Colorado...

* Until 500 PM MDT.

* At 428 PM MDT, a confirmed tornado was located over Cottonwood
  Valley, or 27 miles north of Limon, moving southeast at 25 mph.

  HAZARD...Damaging tornado.

  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...
  Cottonwood Valley.

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 3970 10390 3972 10371 3957 10371 3957 10389
TIME...MOT...LOC 2228Z 316DEG 21KT 3966 10383 

TORNADO...OBSERVED
HAIL...<.75IN

$$

RPK

076 
WWUS55 KBOU 272239
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
439 PM MDT FRI JUL 27 2018

COC005-272300-
/O.CON.KBOU.TO.W.0036.000000T0000Z-180727T2300Z/
Arapahoe CO-
439 PM MDT FRI JUL 27 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM MDT FOR
SOUTHEASTERN ARAPAHOE COUNTY...
    
At 439 PM MDT, a severe thunderstorm capable of producing a tornado
was located near Cottonwood Valley, or 24 miles north of Limon,
moving southeast at 25 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.

Locations impacted include...
Cottonwood Valley.

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 3969 10386 3970 10371 3957 10371 3957 10387
TIME...MOT...LOC 2239Z 316DEG 21KT 3961 10377 

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

$$

RPK

667 
WWUS55 KBOU 272253
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
453 PM MDT FRI JUL 27 2018

COC005-272303-
/O.EXP.KBOU.TO.W.0036.000000T0000Z-180727T2300Z/
Arapahoe CO-
453 PM MDT FRI JUL 27 2018

...THE TORNADO WARNING FOR SOUTHEASTERN ARAPAHOE COUNTY WILL EXPIRE
AT 500 PM MDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

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

LAT...LON 3969 10386 3970 10371 3957 10371 3957 10387
TIME...MOT...LOC 2253Z 316DEG 21KT 3956 10370 

$$

RPK

Tornado Warnings in Colorado, 2018Every tornado warning in 2018Tornadoes in 2018

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.