Alert archive / Colorado / Tornado Watches in 1997

Tornado Watch 523

June 25, 199719 counties in Colorado; 7 counties in Nebraska; Laramie County, Wyoming

The Storm Prediction Center issued this tornado watch at Jun 25, 1997, 1:45 PM MDT for 19 counties in Colorado; 7 counties in Nebraska; Laramie County, Wyoming. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 25, 1997, 1:45 PM MDT (19:45 UTC)
Expired
Jun 25, 1997, 8:00 PM MDT
In force
6 hr
Issued by
the Storm Prediction Center
All 27 counties

Adams County, CO, Arapahoe County, CO, Broomfield County, CO, Cheyenne County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Jefferson County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Teller County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Banner County, NE, Cheyenne County, NE, Deuel County, NE, Garden County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Laramie County, WY

The radar

The Denver radar (KFTG), 53 km from the middle of the area, began a volume at 19:45 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

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

IssuedProductOfficeCountiesLasted
Jun 25, 1:47 PM MDTSevere Thunderstorm WarningCYSKimball43 min
Jun 25, 1:54 PM MDTTornado WarningCYSKimball36 min
Jun 25, 2:10 PM MDTSevere Thunderstorm WarningLBFGarden65 min
Jun 25, 2:13 PM MDTSevere Thunderstorm WarningCYSCheyenne, Morrill32 min
Jun 25, 2:29 PM MDTSevere Thunderstorm WarningCYSKimball46 min
Jun 25, 2:33 PM MDTTornado WarningCYSCheyenne27 min
Jun 25, 2:44 PM MDTSevere Thunderstorm WarningCYSCheyenne31 min
Jun 25, 3:10 PM MDTTornado WarningBOULogan, Weld35 min
Jun 25, 3:14 PM MDTSevere Thunderstorm WarningLBFGarden66 min
Jun 25, 3:33 PM MDTTornado WarningBOULogan27 min
Jun 25, 3:38 PM MDTSevere Thunderstorm WarningLBFDeuel62 min
Jun 25, 3:45 PM MDTTornado WarningBOULogan, Weld30 min
Jun 25, 3:53 PM MDTSevere Thunderstorm WarningPUBEl Paso62 min
Jun 25, 3:58 PM MDTTornado WarningLBFDeuel32 min
Jun 25, 4:04 PM MDTTornado WarningBOULogan26 min
Jun 25, 4:15 PM MDTSevere Thunderstorm WarningBOUSedgwick45 min
Jun 25, 4:53 PM MDTFlash Flood WarningBOULogan2 hr
Jun 25, 5:09 PM MDTSevere Thunderstorm WarningPUBEl Paso46 min
Jun 25, 5:14 PM MDTSevere Thunderstorm WarningGLDYuma61 min
Jun 25, 7:19 PM MDTSevere Thunderstorm WarningGLDYuma36 min
Jun 25, 7:40 PM MDTSevere Thunderstorm WarningGLDKit Carson60 min

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 7.8 hours before the alert went out and 62 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 1997-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 51 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 1997-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
51 J/kg
Mixed-layer CIN
-211 J/kg
Mixed-layer LCL
1628 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
122 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.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 6:30 PM MDTSevere Thunderstorm WatchSPCAdams, Butler, Cass, Clay, Dodge, Douglas and 22 more6 hr
Jun 25, 4:00 PM MDTTornado WatchSPCChase, Dawson, Dundy, Frontier, Furnas, Gosper and 5 more5 hr

Nearby

Tornado Watches in Colorado, 1997Tornado Watches in Nebraska, 1997Tornado Watches in Wyoming, 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.