Severe Thunderstorm Warning 18, NWS Denver/Boulder, CO

Issued

Jun 2, 2012, 3:03 PM MDT (21:03 UTC)

Expired

Jun 2, 2012, 3:45 PM MDT

In force

42 min

Issued by

NWS Denver/Boulder, CO

Area

Storm-based polygon

Hail

0.75 in

Wind

70.0 mph

Counties Adams County, CO, Arapahoe County, CO, Elbert County, CO

The Denver radar (KFTG), 47 km from the middle of the area, began a volume at 21:06 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.

684 
WUUS55 KBOU 022103
SVRBOU
COC001-005-039-022145-
/O.NEW.KBOU.SV.W.0018.120602T2103Z-120602T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
303 PM MDT SAT JUN 2 2012

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ELBERT COUNTY IN EAST CENTRAL COLORADO
  EASTERN ARAPAHOE COUNTY IN NORTHEAST COLORADO
  SOUTHHEASTERN ADAMS COUNTY IN NORTHEAST COLORADO

* UNTIL 345 PM MDT

* AT 301 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE    
  WINDS UP TO ABOUT 70 MPH.  THIS LINE OF STORMS EXTENDED FROM JUST  
  EAST OF DENVER TO WEST OF AGATE AND WAS MOVING EAST AT 35 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO COTTONWOOD
  VALLEY...SHAMROCK...DEER TRAIL...BYERS AND AGATE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 58 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

&&

LAT...LON 3991 10371 3946 10373 3946 10428 3966 10430
      3988 10429
TIME...MOT...LOC 2101Z 239DEG 9KT 3971 10414
WIND...HAIL 70MPH <.75IN

$$

370 
WWUS55 KBOU 022110
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
310 PM MDT SAT JUN 2 2012

COC001-005-039-022145-
/O.CON.KBOU.SV.W.0018.000000T0000Z-120602T2145Z/
ELBERT CO-ARAPAHOE CO-ADAMS CO-
310 PM MDT SAT JUN 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM MDT
FOR SOUTHEASTERN ADAMS...EASTERN ARAPAHOE AND NORTHEASTERN ELBERT
COUNTIES...

AT 309 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE      
WINDS UP TO ABOUT 80 MPH.  THIS LINE OF STORMS EXTENDED FROM JUST    
EAST OF DENVER TO WEST OF AGATE AND WAS MOVING EAST AT 35 MPH


LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
COTTONWOOD VALLEY...SHAMROCK...DEER TRAIL...BYERS AND AGATE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS UP TO 70 MPH.
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM 
WINDOWS!

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 58 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

&&

LAT...LON 3991 10371 3946 10373 3946 10428 3966 10430
      3988 10429
TIME...MOT...LOC 2109Z 239DEG 9KT 3976 10423
WIND...HAIL 80MPH 1.00IN

$$

450 
WWUS55 KBOU 022148
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
348 PM MDT SAT JUN 2 2012

COC001-005-039-022158-
/O.EXP.KBOU.SV.W.0018.000000T0000Z-120602T2145Z/
ELBERT CO-ARAPAHOE CO-ADAMS CO-
348 PM MDT SAT JUN 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADAMS...EASTERN
ARAPAHOE AND NORTHEASTERN ELBERT COUNTIES HAS EXPIRED...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS EXITED THE AREA.

LAT...LON 3991 10371 3946 10373 3946 10428 3966 10430
      3988 10429
TIME...MOT...LOC 2110Z 239DEG 9KT 3976 10423

$$

Severe Thunderstorm Warnings in Colorado, 2012Every severe thunderstorm warning in 2012

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.