Tornado Warning 27, NWS Denver/Boulder, CO

Issued

Jun 4, 2015, 6:38 PM MDT (00:38 UTC)

Expired

Jun 4, 2015, 7:00 PM MDT

In force

22 min

Issued by

NWS Denver/Boulder, CO

Area

Storm-based polygon

Tornado

Observed

Hail

1.25 in

Counties Boulder County, CO, Larimer County, CO, Weld County, CO

The Denver radar (KFTG), 67 km from the middle of the area, began a volume at 00:38 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.

277 
WFUS55 KBOU 050038
TORBOU
COC013-069-123-050100-
/O.NEW.KBOU.TO.W.0027.150605T0038Z-150605T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
638 PM MDT THU JUN 4 2015

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN LARIMER COUNTY IN NORTH CENTRAL COLORADO...
  NORTHEASTERN BOULDER COUNTY IN CENTRAL COLORADO...
  SOUTHWESTERN WELD COUNTY IN NORTHEASTERN COLORADO...

* UNTIL 700 PM MDT

* AT 637 PM MDT...A CONFIRMED TORNADO WAS LOCATED NEAR BERTHOUD...OR
  21 MILES SOUTH OF FORT COLLINS...MOVING WEST AT 15 MPH.

  HAZARD...DAMAGING TORNADO AND HALF DOLLAR 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...
  NORTHERN LONGMONT...JOHNSTOWN...MILLIKEN...BERTHOUD AND MEAD. 

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 IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4036 10484 4019 10485 4018 10515 4037 10522
TIME...MOT...LOC 0037Z 069DEG 12KT 4025 10509 

TORNADO...OBSERVED
HAIL...1.25IN

$$

DANKERS

462 
WWUS55 KBOU 050052
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
652 PM MDT THU JUN 4 2015

COC013-069-123-050100-
/O.CON.KBOU.TO.W.0027.000000T0000Z-150605T0100Z/
LARIMER CO-BOULDER CO-WELD CO-
652 PM MDT THU JUN 4 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM MDT FOR
SOUTHEASTERN LARIMER...NORTHEASTERN BOULDER AND SOUTHWESTERN WELD
COUNTIES...
    
AT 651 PM MDT...A CONFIRMED TORNADO WAS LOCATED 4 MILES NORTHWEST OF
LONGMONT...OR 22 MILES SOUTH OF FORT COLLINS...MOVING WEST AT 15 MPH.

HAZARD...DAMAGING TORNADO AND HALF DOLLAR 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...
NORTHERN LONGMONT...JOHNSTOWN...MILLIKEN...BERTHOUD AND MEAD. 

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 IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4036 10484 4019 10485 4018 10515 4037 10522
TIME...MOT...LOC 0051Z 069DEG 12KT 4023 10515 

TORNADO...OBSERVED
HAIL...1.25IN

$$

DANKERS

Tornado Warnings in Colorado, 2015Every tornado warning in 2015Tornadoes in 2015

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.