Alert archive / Nebraska / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 32, NWS Hastings, NE

July 9, 1987Polk County, York County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jul 9, 1987, 3:45 AM CDT for Polk County, York County, Nebraska. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1987, 3:45 AM CDT (08:45 UTC)
Expired
Jul 9, 1987, 4:15 AM CDT
In force
30 min
Issued by
NWS Hastings, NE
Area
Whole counties

Counties Polk County, NE, York County, NE

The radar

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

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 8.8 hours before the alert went out and 106 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 1987-07-09Temperature 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 km15 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 1987-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3603 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
145 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 Hastings, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 8, 9:19 PM CDTSevere Thunderstorm WarningGIDBuffalo, Kearney56 min
Jul 8, 10:06 PM CDTSevere Thunderstorm WarningGIDAdams, Hall54 min
Jul 9, 2:39 AM CDTSevere Thunderstorm WarningGIDFillmore66 min
Jul 9, 2:55 AM CDTSevere Thunderstorm WarningGIDYork65 min
Jul 9, 3:56 AM CDTSevere Thunderstorm WarningGIDWebster64 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1987Every severe thunderstorm warning in 1987

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.