Alert archive / Nebraska / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 138, NWS Omaha, NE

September 30, 1995Cass County, Sarpy County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Sep 30, 1995, 1:03 AM CDT for Cass County, Sarpy County, Nebraska. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Sep 30, 1995, 1:03 AM CDT (06:03 UTC)
Expired
Sep 30, 1995, 1:30 AM CDT
In force
27 min
Issued by
NWS Omaha, NE
Area
Whole counties

Counties Cass County, NE, Sarpy County, NE

The radar

The Omaha radar (KOAX), 40 km from the middle of the area, began a volume at 06:04 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.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 6.1 hours before the alert went out and 227 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, Topeka, KS at 00:00Z on 1995-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1956 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 1995-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 208 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
1956 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1197 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
208 m²/s²
0-3 km storm-relative helicity
434 m²/s²
Significant tornado parameter
2.3
Supercell composite
15.0

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 Omaha, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 29, 10:35 PM CDTSevere Thunderstorm WarningOAXBoone55 min
Sep 29, 11:44 PM CDTSevere Thunderstorm WarningOAXMadison, Platte46 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1995Every severe thunderstorm warning in 1995

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.