Alert archive / Nebraska / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 271, NWS Hastings, NE

August 7, 2024Greeley County, Valley County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Aug 7, 2024, 10:26 PM CDT for Greeley County, Valley County, Nebraska. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 7, 2024, 10:26 PM CDT (03:26 UTC)
Expired
Aug 7, 2024, 11:15 PM CDT
In force
49 min
Issued by
NWS Hastings, NE
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Greeley County, NE, Valley County, NE

The radar

The Grand Island radar (KUEX), 141 km from the middle of the area, began a volume at 03:27 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.4 hours before the alert went out and 162 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, N. Platte/Lee Bi, NE at 00:00Z on 2024-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1475 joules per kilogram.LCLLFCEL10008507005003002001001 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, N. Platte/Lee Bi, NE at 00:00Z on 2024-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 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
1475 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1621 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.2
Supercell composite
5.5

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 10:02 PM CDTSpecial Weather StatementGIDDawson43 min
Aug 7, 10:21 PM CDTSpecial Weather StatementGIDGreeley39 min
Aug 7, 10:46 PM CDTSpecial Weather StatementGIDDawson, Gosper44 min
Aug 7, 11:07 PM CDTSpecial Weather StatementGIDGreeley23 min
Aug 7, 11:19 PM CDTSpecial Weather StatementGIDNance41 min
Aug 7, 11:24 PM CDTSpecial Weather StatementGIDHoward36 min
Aug 7, 11:56 PM CDTSpecial Weather StatementGIDPolk49 min
Aug 8, 12:03 AM CDTSevere Thunderstorm WarningGIDMerrick, Polk27 min
Aug 8, 12:28 AM CDTSevere Thunderstorm WarningGIDPolk17 min
Aug 8, 12:58 AM CDTSpecial Weather StatementGIDRooks47 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2024Every severe thunderstorm warning in 2024

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.