Alert archive / Colorado / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 5, NWS Denver/Boulder, CO

June 3, 2002Douglas County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 3, 2002, 3:07 PM MDT for Douglas County, Colorado. It was in force for 38 min. 1 report 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 3, 2002, 3:07 PM MDT (21:07 UTC)
Expired: Jun 3, 2002, 3:45 PM MDT
In force: 38 min
Issued by: NWS Denver/Boulder, CO
Area: Counties, with a storm outline in the text

County Douglas County, CO

The radar

The Cheyenne radar (KCYS), 71 km from the middle of the area, began a volume at 21:10 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 3, 3:37 PM MDT	Hail 0.75	Galeton, CO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 3, 2:00 PM MDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.1 hours before the alert went out and 134 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: 7 J/kg
Mixed-layer CIN: -206 J/kg
Mixed-layer LCL: 1224 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: -47 m²/s²
0-3 km storm-relative helicity: 263 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.

147 
WUUS55 KBOU 032108
SVRDEN
COC123-032200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
307 PM MDT MON JUN 3 2002

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL WELD COUNTY IN NORTHEAST COLORADO
  THIS INCLUDES THE CITY OF EASTERN GREELEY

* UNTIL 400 PM MDT

* AT 307 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER EAST CENTRAL GREELEY...MOVING NORTHEAST AT
  35 MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...EASTERN
GREELEY...BARNESVILLE...BRIGGSDALE...EATON...EVANS...GALETON...
GILL...KEOTA AND LUCERNE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM MDT MONDAY EVENING FOR
NORTHEASTERN COLORADO.

HAIL UP TO ONE INCH IN DIAMETER WAS REPORTED IN LUCERNE AT 304 PM.  
WIND DAMAGE HAS ALSO BEEN REPORTED IN GREELEY.  IF YOU ARE IN THE 
PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A 
SUBSTANTIAL SHELTER.

LAT...LON 4047 10479 4037 10471 4060 10399 4086 10418
          4053 10471

GIMMESTAD

&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 1:28 PM MDT	Tornado Warning	BOU	Elbert	47 min
Jun 3, 2:13 PM MDT	Tornado Warning	BOU	Elbert, Lincoln	47 min
Jun 3, 2:25 PM MDT	Severe Thunderstorm Warning	BOU	Douglas	50 min
Jun 3, 2:49 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe	41 min
Jun 3, 2:57 PM MDT	Tornado Warning	BOU	Elbert, Lincoln	48 min
Jun 3, 3:08 PM MDT	Severe Thunderstorm Warning	BOU	Weld	52 min
Jun 3, 3:15 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe	45 min
Jun 3, 3:29 PM MDT	Tornado Warning	BOU	Lincoln	46 min
Jun 3, 3:48 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Denver	42 min
Jun 3, 3:58 PM MDT	Severe Thunderstorm Warning	BOU	Weld	62 min
Jun 3, 4:00 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe	45 min
Jun 3, 4:06 PM MDT	Severe Thunderstorm Warning	BOU	Weld	54 min
Jun 3, 4:51 PM MDT	Tornado Warning	BOU	Morgan	39 min
Jun 3, 5:23 PM MDT	Tornado Warning	BOU	Morgan	37 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.