Alert archive / Colorado / Tornado Warnings in 1998
Tornado Warning 7, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 24, 1998, 1:55 PM MDT for Adams County, Colorado. It was in force for 35 min. No storm report in the archive falls 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.
The facts
- Issued
- May 24, 1998, 1:55 PM MDT (19:55 UTC)
- Expired
- May 24, 1998, 2:30 PM MDT
- In force
- 35 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Adams County, CO
The radar
The Denver radar (KFTG), 13 km from the middle of the area, began a volume at 19:58 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, 7.9 hours before the alert went out and 105 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1490 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
937
WFUS1 KDEN 241957 RRA
TORDEN
COC001-242030-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
155 PM MDT SUN MAY 24 1998
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL ADAMS COUNTY IN NORTHEAST COLORADO
* UNTIL 230 PM MDT
* AT 146 PM MDT...AMATEUR RADIO WEATHER SPOTTERS REPORTED A TORNADO
ON THE GROUND 1 MILE NORTHWEST OF WATKINS MOVING NORTHEAST AT
15 MPH. DAMAGE HAS BEEN REPORTED WITH THIS TORNADO AND PEOPLE IN
WATKINS SHOULD TAKE COVER NOW
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
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 3998 10460 3975 10460 3978 10439 3981 10426
3999 10433
KLEYLAThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 10:16 AM MDT | Severe Thunderstorm Warning | BOU | Lincoln, Washington | 44 min |
| May 24, 10:16 AM MDT | Severe Thunderstorm Warning | BOU | Elbert | 44 min |
| May 24, 10:59 AM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 46 min |
| May 24, 10:59 AM MDT | Severe Thunderstorm Warning | BOU | Washington | 46 min |
| May 24, 1:03 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas, Elbert | 42 min |
| May 24, 1:34 PM MDT | Tornado Warning | BOU | Arapahoe | 26 min |
| May 24, 2:16 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 49 min |
| May 24, 2:37 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 38 min |
| May 24, 3:07 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 38 min |
| May 24, 3:15 PM MDT | Tornado Warning | BOU | Lincoln | 30 min |
| May 24, 3:44 PM MDT | Tornado Warning | BOU | Lincoln | 31 min |
| May 24, 4:18 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 27 min |
Nearby
Tornado Warnings in Colorado, 1998Every tornado warning in 1998Tornadoes in 1998
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.