Alert archive / Colorado / Tornado Warnings in 2014

Tornado Warning 14, NWS Denver/Boulder, CO

May 7, 2014Phillips County, Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 7, 2014, 6:00 PM MDT for Phillips County, Sedgwick County, Colorado. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 7, 2014, 6:00 PM MDT (00:00 UTC)
Expired
May 7, 2014, 6:30 PM MDT
In force
30 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

Counties Phillips County, CO, Sedgwick County, CO

The radar

The Goodland radar (KGLD), 151 km from the middle of the area, began a volume at 00:02 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 7, 12:37 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 0.0 hours before the alert went out and 107 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2014-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 662 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2014-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
662 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
1719 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

321 
WFUS55 KBOU 080000
TORBOU
COC095-115-080030-
/O.NEW.KBOU.TO.W.0014.140508T0000Z-140508T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
600 PM MDT WED MAY 7 2014

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  PHILLIPS COUNTY IN NORTHEAST COLORADO...
  SOUTHERN SEDGWICK COUNTY IN NORTHEAST COLORADO...

* UNTIL 630 PM MDT
    
* AT 600 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR PAOLI...OR 8 MILES NORTHWEST OF HOLYOKE...
  MOVING NORTHEAST AT 25 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. 

* LOCATIONS IMPACTED INCLUDE...
  HOLYOKE...PAOLI...MARKS BUTTE...FAIRFIELD AND SIXTEEN-MILE CORNER. 

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

&&

LAT...LON 4044 10259 4083 10256 4086 10217 4045 10218
TIME...MOT...LOC 0000Z 227DEG 21KT 4064 10244 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

RPK
3 follow-up statements
693 
WWUS55 KBOU 080011
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
611 PM MDT WED MAY 7 2014

COC095-115-080030-
/O.CON.KBOU.TO.W.0014.000000T0000Z-140508T0030Z/
PHILLIPS CO-SEDGWICK CO-
611 PM MDT WED MAY 7 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM MDT FOR PHILLIPS
AND SOUTHERN SEDGWICK COUNTIES...
    
AT 610 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 6 MILES SOUTHEAST OF FAIRFIELD...OR 7 MILES NORTHWEST OF 
HOLYOKE...MOVING NORTHEAST AT 25 MPH.  ANOTHER SEVERE THUNDERSTORM 
CAPABLE OF PRODUCING A TORNADO WAS LOCATED 5 MILES SOUTH OF HOLYOKE 
MOVING NORTHEAST AT 25 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. 

LOCATIONS IMPACTED INCLUDE...
HOLYOKE...PAOLI...MARKS BUTTE...FAIRFIELD AND SIXTEEN-MILE CORNER. 

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

&&

LAT...LON 4044 10259 4083 10256 4086 10217 4045 10218
TIME...MOT...LOC 0010Z 227DEG 21KT 4068 10238 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

RPK
283 
WWUS55 KBOU 080021
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
621 PM MDT WED MAY 7 2014

COC095-115-080030-
/O.CON.KBOU.TO.W.0014.000000T0000Z-140508T0030Z/
PHILLIPS CO-SEDGWICK CO-
621 PM MDT WED MAY 7 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM MDT FOR PHILLIPS
AND SOUTHERN SEDGWICK COUNTIES...
    
AT 620 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 5 MILES SOUTHWEST OF SIXTEEN-MILE CORNER...OR 9 MILES 
NORTH OF HOLYOKE...MOVING NORTHEAST AT 25 MPH.  ANOTHER SEVERE 
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED 2 MILES 
SOUTH OF HOLYOKE MOVING NORTHEAST AT 25 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. 

LOCATIONS IMPACTED INCLUDE...
HOLYOKE...PAOLI...MARKS BUTTE...FAIRFIELD AND SIXTEEN-MILE CORNER. 

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

&&

LAT...LON 4044 10259 4083 10256 4086 10217 4045 10218
TIME...MOT...LOC 0020Z 227DEG 21KT 4072 10232 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

RPK
168 
WWUS55 KBOU 080030
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
630 PM MDT WED MAY 7 2014

COC095-115-080040-
/O.EXP.KBOU.TO.W.0014.000000T0000Z-140508T0030Z/
PHILLIPS CO-SEDGWICK CO-
630 PM MDT WED MAY 7 2014

...THE TORNADO WARNING FOR PHILLIPS AND SOUTHERN SEDGWICK COUNTIES
HAS EXPIRED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.  HOWEVER SMALL HAIL
AND GUSTY WINDS TO 50 MPH ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM MDT
WEDNESDAY EVENING FOR NORTHEAST COLORADO.

LAT...LON 4044 10259 4083 10256 4086 10217 4045 10218
TIME...MOT...LOC 0027Z 227DEG 21KT 4072 10232 

$$

RPK

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 7, 6:39 PM MDTSevere Thunderstorm WarningBOULarimer36 min
May 7, 6:43 PM MDTSpecial Weather StatementBOUBroomfield32 min
May 7, 6:51 PM MDTSevere Thunderstorm WarningBOUWeld24 min
May 7, 7:12 PM MDTSevere Thunderstorm WarningBOUWeld33 min
May 7, 7:21 PM MDTSevere Thunderstorm WarningBOUBoulder, Jefferson24 min
May 7, 7:44 PM MDTSevere Thunderstorm WarningBOUAdams, Boulder, Broomfield, Denver, Jefferson31 min
May 7, 8:02 PM MDTSevere Thunderstorm WarningBOUAdams, Boulder, Broomfield, Denver28 min
May 7, 8:32 PM MDTSevere Thunderstorm WarningBOUWeld28 min
May 7, 8:51 PM MDTSpecial Weather StatementBOUBroomfield39 min
May 8, 2:55 PM MDTSpecial Weather StatementBOULincoln50 min
May 8, 3:05 PM MDTSpecial Weather StatementBOUBroomfield, Jefferson40 min
May 8, 3:28 PM MDTTornado Warning Tornado observedBOULincoln32 min
May 8, 3:58 PM MDTSpecial Weather StatementBOUDenver32 min
May 8, 4:06 PM MDTSpecial Weather StatementBOUBroomfield24 min
May 8, 4:12 PM MDTSpecial Weather StatementBOULincoln48 min

Nearby

Tornado Warnings in Colorado, 2014Every tornado warning in 2014Tornadoes in 2014

Sources

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.