Alert archive / Colorado / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 49, NWS Denver/Boulder, CO

June 15, 2004Logan County, Phillips County, Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 15, 2004, 6:10 PM MDT for Logan County, Phillips County, Sedgwick County, Colorado. It was in force for 50 min. 25 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 15, 2004, 6:10 PM MDT (00:10 UTC)
Expired: Jun 15, 2004, 7:00 PM MDT
In force: 50 min
Issued by: NWS Denver/Boulder, CO
Area: Counties, with a storm outline in the text

Counties Logan County, CO, Phillips County, CO, Sedgwick County, CO

The radar

The Goodland radar (KGLD), 174 km from the middle of the area, began a volume at 00:09 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.

What was reported inside it

Time	Report	Where	Remark
Jun 15, 6:20 PM MDT	HAIL 1.75	7 S Fleming, CO
Jun 15, 6:20 PM MDT	HAIL 1.75	7 S Fleming, CO
Jun 15, 6:20 PM MDT	HAIL 1.75	7 S Fleming, CO
Jun 15, 6:20 PM MDT	HAIL 1.75	7 S Fleming, CO
Jun 15, 6:23 PM MDT	HAIL 0.88	13 Ese Atwood, CO
Jun 15, 6:23 PM MDT	HAIL 0.88	13 Ese Atwood, CO
Jun 15, 6:23 PM MDT	HAIL 0.88	13 Ese Atwood, CO
Jun 15, 6:23 PM MDT	HAIL 0.88	13 Ese Atwood, CO
Jun 15, 6:25 PM MDT	HAIL 1	3 Sw Fleming, CO
Jun 15, 6:25 PM MDT	HAIL 1	3 Sw Fleming, CO
Jun 15, 6:25 PM MDT	HAIL 1	3 Sw Fleming, CO
Jun 15, 6:25 PM MDT	HAIL 1	3 Sw Fleming, CO
Jun 15, 6:30 PM MDT	HAIL 1.75	Crook, CO
Jun 15, 6:30 PM MDT	HAIL 1.75	Crook, CO
Jun 15, 6:30 PM MDT	HAIL 1.75	Crook, CO
Jun 15, 6:30 PM MDT	HAIL 1.75	Crook, CO
Jun 15, 6:45 PM MDT	TORNADO	2 Nw Haxtun, CO	BRIEF TOUCHDOWN WITH NO DAMAGE REPORTED.
Jun 15, 6:45 PM MDT	TORNADO	2 Nw Haxtun, CO	BRIEF TOUCHDOWN WITH NO DAMAGE REPORTED.
Jun 15, 6:45 PM MDT	TORNADO	2 Nw Haxtun, CO	BRIEF TOUCHDOWN WITH NO DAMAGE REPORTED.
Jun 15, 6:48 PM MDT	TSTM WND GST 60	12 S Haxtun, CO
Jun 15, 6:48 PM MDT	TSTM WND GST 60	12 S Haxtun, CO
Jun 15, 6:48 PM MDT	TSTM WND GST 60	12 S Haxtun, CO
Jun 15, 6:52 PM MDT	HAIL 0.75	12 S Haxtun, CO
Jun 15, 6:52 PM MDT	HAIL 0.75	12 S Haxtun, CO
Jun 15, 6:52 PM MDT	HAIL 0.75	12 S Haxtun, CO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 15, 1:20 PM MDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.2 hours before the alert went out and 96 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2937 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

535 
WUUS55 KBOU 160010
SVRBOU
COC075-095-115-160100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
610 PM MDT TUE JUN 15 2004

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN LOGAN COUNTY IN NORTHEAST COLORADO
  WESTERN PHILLIPS COUNTY IN NORTHEAST COLORADO
  WESTERN SEDGWICK COUNTY IN NORTHEAST COLORADO

* UNTIL 700 PM MDT

* AT 610 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES WEST OF ST PETERSBURG...OR ABOUT 12
  MILES SOUTHEAST OF STERLING...MOVING NORTHEAST AT 20 MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...CROOK...
FAIRFIELD...FLEMING...HAXTUN...HIGHLAND CENTER...MARKS BUTTE...
PAOLI...SEDGWICK...ST PETERSBURG...TWIN BUTTES AND WAGES.

HAIL UP TO NICKEL SIZE WAS BEEN REPORTED WITH THIS STORM 12 MILES 
SOUTHEAST OF STERLING AT 605 PM. IF YOU ARE IN THE PATH OF THE 
STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.

LAT...LON 4057 10309 4044 10304 4045 10246 4101 10243
          4101 10276

$$

GIMMESTAD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 6:01 PM MDT	Severe Thunderstorm Warning	BOU	Larimer	44 min
Jun 15, 6:58 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Phillips, Sedgwick	62 min
Jun 15, 7:31 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Phillips, Sedgwick	29 min
Jun 15, 7:59 PM MDT	Severe Thunderstorm Warning	BOU	Phillips, Sedgwick	61 min
Jun 16, 2:44 PM MDT	Severe Thunderstorm Warning	BOU	Douglas, Jefferson	46 min
Jun 16, 3:25 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Douglas	40 min
Jun 16, 4:36 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	54 min
Jun 16, 4:55 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Washington	50 min
Jun 16, 5:34 PM MDT	Severe Thunderstorm Warning	BOU	Washington	41 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2004 Every severe thunderstorm warning in 2004

Sources

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.