Alert archive / Colorado / Severe Thunderstorm Watches in 1998
Severe Thunderstorm Watch 522
The Storm Prediction Center issued this severe thunderstorm watch at Jun 7, 1998, 1:15 PM MDT for 20 counties in Colorado; 6 counties in Nebraska; Laramie County, Wyoming. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 7, 1998, 1:15 PM MDT (19:15 UTC)
- Expired
- Jun 7, 1998, 8:00 PM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 27 counties
Adams County, CO, Arapahoe County, CO, Broomfield County, CO, Cheyenne County, CO, Crowley County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Jefferson County, CO, Kiowa County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Banner County, NE, Cheyenne County, NE, Deuel County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Laramie County, WY
The radar
The Denver radar (KFTG), 122 km from the middle of the area, began a volume at 19:17 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.
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 3:14 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 46 min |
| Jun 7, 3:53 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 52 min |
| Jun 7, 4:04 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 41 min |
| Jun 7, 4:20 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 40 min |
| Jun 7, 4:24 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Washington | 51 min |
| Jun 7, 4:26 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 64 min |
| Jun 7, 4:41 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 49 min |
| Jun 7, 4:45 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 30 min |
| Jun 7, 5:02 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 78 min |
| Jun 7, 5:25 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 65 min |
| Jun 7, 5:28 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 32 min |
| Jun 7, 6:39 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 51 min |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 7.3 hours before the alert went out and 76 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
- 1477 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 2:15 PM MDT | Tornado Watch | SPC | Baca, Bent, Huerfano, Las Animas, Otero, Prowers and 1 more | 7 hr |
Nearby
Severe Thunderstorm Watches in Colorado, 1998Severe Thunderstorm Watches in Nebraska, 1998Severe Thunderstorm Watches in Wyoming, 1998Every severe thunderstorm watch 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.