Alert archive / Nebraska / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 62, NWS North Platte, NE

August 5, 1989Colfax County, Cuming County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 5, 1989, 6:33 AM CDT for Colfax County, Cuming County, Nebraska. It was in force for 57 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 5, 1989, 6:33 AM CDT (11:33 UTC)
Expired
Aug 5, 1989, 7:30 AM CDT
In force
57 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Colfax County, NE, Cuming County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Aug 5, 6:33 AM CDTThunderstorm Wind 0Cuming, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 11.6 hours before the alert went out and 67 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, Omaha, NE at 00:00Z on 1989-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 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, Omaha, NE at 00:00Z on 1989-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 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
31 J/kg
Mixed-layer CIN
-246 J/kg
Mixed-layer LCL
3581 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
90 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.

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 5, 3:38 AM CDTSevere Thunderstorm WarningLBFBrown37 min
Aug 5, 4:11 AM CDTSevere Thunderstorm WarningLBFLoup, Rock64 min
Aug 5, 4:11 AM CDTSevere Thunderstorm WarningLBFGarfield64 min
Aug 5, 5:00 AM CDTSevere Thunderstorm WarningLBFAntelope, Cedar, Knox, Pierce45 min
Aug 5, 5:31 AM CDTSevere Thunderstorm WarningLBFMadison, Stanton, Wayne59 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1989Every severe thunderstorm warning in 1989

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.