Alert archive / Colorado / Tornado Warnings in 2003
Tornado Warning 15, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 8, 2003, 11:13 AM MDT for Adams County, Colorado. It was in force for 17 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 8, 2003, 11:13 AM MDT (17:13 UTC)
- Expired
- May 8, 2003, 11:30 AM MDT
- In force
- 17 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Adams County, CO
The radar
The Denver radar (KFTG), 21 km from the middle of the area, began a volume at 17:16 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 nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 5.2 hours before the alert went out and 119 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.
- Mixed-layer CAPE
- 13 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 830 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
346 WFUS55 KBOU 081713 TORBOU COC001-081730- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 1113 AM MDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... NORTH CENTRAL ADAMS COUNTY IN NORTHEAST COLORADO * UNTIL 1130 AM MDT * AT 1113 AM MDT...THE PUBLIC REPORTED A TORNADO OVER NORTH CENTRAL ADAMS COUNTY...OR ABOUT 23 MILES NORTHEAST OF DENVER...MOVING EAST AT 5 TO 10 MPH. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. LAT...LON 4000 10471 3991 10472 3991 10447 4000 10447 GARD...WFO BOULDER
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 10:04 AM MDT | Severe Thunderstorm Warning | BOU | Weld | 56 min |
| May 8, 11:52 AM MDT | Tornado Warning | BOU | Adams, Denver | 38 min |
| May 8, 12:10 PM MDT | Tornado Warning | BOU | Weld | 35 min |
| May 8, 12:50 PM MDT | Tornado Warning | BOU | Morgan | 40 min |
| May 8, 1:12 PM MDT | Tornado Warning | BOU | Morgan, Washington | 48 min |
| May 8, 1:53 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 37 min |
| May 8, 2:01 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 44 min |
Nearby
Tornado Warnings in Colorado, 2003Every tornado warning in 2003Tornadoes in 2003
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.