Alert archive / Colorado / Tornado Watches in 1997

Tornado Watch 411

June 12, 199725 counties in Colorado

The Storm Prediction Center issued this tornado watch at Jun 12, 1997, 12:30 PM MDT for 25 counties in Colorado. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 12, 1997, 12:30 PM MDT (18:30 UTC)
Expired
Jun 12, 1997, 6:00 PM MDT
In force
6 hr
Issued by
the Storm Prediction Center
All 25 counties

Adams County, CO, Arapahoe County, CO, Baca County, CO, Bent County, CO, Broomfield County, CO, Cheyenne County, CO, Crowley County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Kiowa County, CO, Kit Carson County, CO, Las Animas County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Otero County, CO, Phillips County, CO, Prowers County, CO, Pueblo County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO

The radar

The Denver radar (KFTG), 120 km from the middle of the area, began a volume at 18:33 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

22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 12, 1:22 PM MDTSevere Thunderstorm WarningPUBOtero63 min
Jun 12, 1:32 PM MDTSevere Thunderstorm WarningPUBPueblo48 min
Jun 12, 2:11 PM MDTTornado WarningBOUArapahoe, Douglas34 min
Jun 12, 2:17 PM MDTSevere Thunderstorm WarningGLDKit Carson63 min
Jun 12, 2:19 PM MDTSevere Thunderstorm WarningBOUWeld41 min
Jun 12, 2:24 PM MDTSevere Thunderstorm WarningPUBBent61 min
Jun 12, 2:32 PM MDTSevere Thunderstorm WarningGLDKit Carson63 min
Jun 12, 2:36 PM MDTSevere Thunderstorm WarningBOUAdams, Weld39 min
Jun 12, 2:55 PM MDTSevere Thunderstorm WarningBOUAdams, Denver, Weld50 min
Jun 12, 3:24 PM MDTSevere Thunderstorm WarningPUBBent61 min
Jun 12, 3:30 PM MDTSevere Thunderstorm WarningGLDKit Carson50 min
Jun 12, 3:37 PM MDTSevere Thunderstorm WarningBOUAdams, Weld38 min
Jun 12, 3:49 PM MDTSevere Thunderstorm WarningBOUWeld41 min
Jun 12, 4:03 PM MDTTornado WarningGLDKit Carson37 min
Jun 12, 4:27 PM MDTSevere Thunderstorm WarningBOUWeld48 min
Jun 12, 4:32 PM MDTSevere Thunderstorm WarningPUBBaca63 min
Jun 12, 4:56 PM MDTSevere Thunderstorm WarningPUBEl Paso59 min
Jun 12, 5:07 PM MDTSevere Thunderstorm WarningGLDCheyenne63 min
Jun 12, 5:13 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld47 min
Jun 12, 5:24 PM MDTSevere Thunderstorm WarningBOUElbert36 min
Jun 12, 5:33 PM MDTSevere Thunderstorm WarningPUBBaca62 min
Jun 12, 5:56 PM MDTSevere Thunderstorm WarningPUBEl Paso64 min

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 6.5 hours before the alert went out and 55 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-pSkew-T log-p diagram, Denver, CO at 12:00Z on 1997-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 48 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 1997-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
48 J/kg
Mixed-layer CIN
-253 J/kg
Mixed-layer LCL
1774 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

Nearby

Tornado Watches in Colorado, 1997Every tornado watch in 1997

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.