Alert archive / Colorado / Tornado Warnings in 2000
Tornado Warning 8, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 17, 2000, 2:59 PM MDT for Logan County, Morgan County, Colorado. It was in force for 46 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- May 17, 2000, 2:59 PM MDT (20:59 UTC)
- Expired
- May 17, 2000, 3:45 PM MDT
- In force
- 46 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Logan County, CO, Morgan County, CO
The radar
The Denver radar (KFTG), 89 km from the middle of the area, began a volume at 21:03 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 |
|---|---|---|---|
| May 17, 3:20 PM MDT | Thunderstorm Wind 61 E | Ft Morgan, CO | Strong thunderstorm winds blew the windows out of a house and damaged a nearby barn. |
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 nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.0 hours before the alert went out and 83 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
- 439 J/kg
- Mixed-layer CIN
- -205 J/kg
- Mixed-layer LCL
- 1040 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 205 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
187 WFUS55 KBOU 172100 RRA TORDEN COC075-172145- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 259 PM MDT WED MAY 17 2000 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN LOGAN COUNTY IN NORTHEAST COLORADO THIS INCLUDES THE CITY OF STERLING * UNTIL 345 PM MDT * AT 259 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM WITH A POSSIBLE TORNADO 8 MILES EAST OF ATWOOD...OR ABOUT 8 MILES SOUTHEAST OF STERLING...MOVING NORTHWEST AT 10 MPH. LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO... STERLING...ST PETERSBURG...MERINO...LOGAN CORNERS...FLEMING AND ATWOOD 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 4073 10347 4044 10345 4046 10269 4074 10268 KLEYLA
1 follow-up statement
317 WFUS55 KBOU 172100 RRB TORDEN COC087-172145- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 259 PM MDT WED MAY 17 2000 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN MORGAN COUNTY IN NORTHEAST COLORADO * UNTIL 345 PM MDT * AT 259 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO NEAR WELDONA...OR ABOUT 11 MILES NORTHWEST OF FORT MORGAN...MOVING WEST AT 15 MPH. LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO... WELDONA...ORCHARD...JACKSON RESERVOIR AND GOODRICH. 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 4038 10378 4051 10367 4050 10412 4028 10413 BARJENBRUCH
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 9:03 AM MDT | Severe Thunderstorm Warning | BOU | Boulder, Larimer | 27 min |
| May 17, 9:29 AM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas, Jefferson | 41 min |
| May 17, 9:29 AM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 41 min |
| May 17, 10:32 AM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver, Jefferson | 43 min |
| May 17, 10:32 AM MDT | Severe Thunderstorm Warning | BOU | Douglas | 43 min |
| May 17, 10:43 AM MDT | Severe Thunderstorm Warning | BOU | Larimer | 62 min |
| May 17, 12:19 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Jefferson | 41 min |
| May 17, 12:19 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 41 min |
| May 17, 12:19 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 41 min |
| May 17, 12:30 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 30 min |
| May 17, 12:50 PM MDT | Tornado Warning | BOU | Morgan, Washington | 40 min |
| May 17, 1:12 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 48 min |
| May 17, 1:30 PM MDT | Tornado Warning | BOU | Morgan, Washington | 45 min |
| May 17, 1:42 PM MDT | Tornado Warning | BOU | Morgan, Weld | 48 min |
| May 17, 2:00 PM MDT | Tornado Warning | BOU | Adams, Arapahoe | 45 min |
| May 17, 2:17 PM MDT | Tornado Warning | BOU | Logan, Morgan, Washington | 43 min |
| May 17, 2:55 PM MDT | Tornado Warning | BOU | Phillips | 35 min |
| May 17, 3:24 PM MDT | Tornado Warning | BOU | Phillips | 36 min |
| May 17, 3:43 PM MDT | Tornado Warning | BOU | Logan | 47 min |
| May 17, 3:56 PM MDT | Tornado Warning | BOU | Phillips, Sedgwick | 34 min |
Nearby
Tornado Warnings in Colorado, 2000Every tornado warning in 2000Tornadoes in 2000
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.