Alert archive / Nebraska / Tornado Watches in 1999

Tornado Watch 262

May 14, 19996 counties in Colorado; 6 counties in Kansas; 18 counties in Nebraska

The Storm Prediction Center issued this tornado watch at May 14, 1999, 3:00 PM MDT for 6 counties in Colorado; 6 counties in Kansas; 18 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 14, 1999, 3:00 PM MDT (21:00 UTC)
Expired
May 14, 1999, 9:00 PM MDT
In force
6 hr
Issued by
the Storm Prediction Center
All 30 counties

Kit Carson County, CO, Logan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Arthur County, NE, Chase County, NE, Cheyenne County, NE, Deuel County, NE, Dundy County, NE, Frontier County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hitchcock County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Red Willow County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 153 km from the middle of the area, began a volume at 21:02 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

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

IssuedProductOfficeCountiesLasted
May 14, 4:13 PM MDTSevere Thunderstorm WarningGLDYuma47 min
May 14, 4:15 PM MDTSevere Thunderstorm WarningLBFKeith50 min
May 14, 4:32 PM MDTTornado WarningGLDYuma28 min
May 14, 5:00 PM MDTTornado WarningGLDYuma30 min
May 14, 5:00 PM MDTSevere Thunderstorm WarningGLDDundy60 min
May 14, 5:12 PM MDTSevere Thunderstorm WarningLBFChase48 min
May 14, 5:47 PM MDTSevere Thunderstorm WarningLBFHayes63 min
May 14, 5:50 PM MDTSevere Thunderstorm WarningGLDHitchcock45 min
May 14, 6:12 PM MDTSevere Thunderstorm WarningLBFFrontier63 min
May 14, 6:34 PM MDTSevere Thunderstorm WarningGLDHitchcock, Red Willow46 min
May 14, 6:50 PM MDTSevere Thunderstorm WarningLBFLincoln35 min
May 14, 7:22 PM MDTSevere Thunderstorm WarningLBFFrontier33 min
May 14, 7:37 PM MDTSevere Thunderstorm WarningGLDDecatur43 min
May 14, 8:17 PM MDTSevere Thunderstorm WarningGLDDecatur48 min

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.0 hours before the alert went out and 176 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 1999-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1999-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1423 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
227 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 Nebraska, 1999Tornado Watches in Colorado, 1999Tornado Watches in Kansas, 1999Every tornado watch in 1999

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.