Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS Hastings, NE

August 7, 2021Harlan County, Nebraska

NWS Hastings, NE issued this special weather statement at Aug 7, 2021, 7:43 AM CDT for Harlan County, Nebraska. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 7, 2021, 7:43 AM CDT (12:43 UTC)
Expired
Aug 7, 2021, 8:15 AM CDT
In force
32 min
Issued by
NWS Hastings, NE
Hail
0.50 in
Wind
40

County Harlan County, NE

The radar

The Grand Island radar (KUEX), 74 km from the middle of the area, began a volume at 12:44 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 12:00Z, 0.7 hours before the alert went out and 150 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 12:00Z on 2021-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 78 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2021-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
78 J/kg
Mixed-layer CIN
-338 J/kg
Mixed-layer LCL
2303 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

588 
WWUS83 KGID 071243
SPSGID

Special Weather Statement
National Weather Service Hastings NE
743 AM CDT Sat Aug 7 2021
 
NEZ082>084-071315-
Franklin NE-Harlan NE-Furnas NE-
743 AM CDT Sat Aug 7 2021

...Strong thunderstorms will impact portions of western Franklin,
southeastern Furnas and Harlan Counties through 815 AM CDT...

At 742 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Ragan to near Stamford. Movement was east at 35
mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Strong thunderstorms will be near...
  Ragan around 750 AM CDT.
  Orleans around 800 AM CDT.

Other locations in the path of these storms include Hildreth, Alma,
Republican City, Upland, Naponee and Harlan County Dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

If on or near Harlan Lake, get out of the water and move indoors or 
inside a vehicle. Remember, lightning can strike out to 10 miles 
from the parent thunderstorm. If you can hear thunder, you are close 
enough to be struck by lightning. Move to safe shelter now! Do not 
be caught on the water in a thunderstorm.

&&

LAT...LON 4035 9937 4035 9878 4000 9917 4000 9984
TIME...MOT...LOC 1242Z 263DEG 32KT 4030 9927 4005 9965 

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

$$

Mangels

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 11:14 PM CDTSpecial Weather StatementGIDDawson31 min
Aug 7, 6:04 PM CDTSpecial Weather StatementGIDPolk26 min
Aug 7, 6:38 PM CDTSevere Thunderstorm WarningGIDPolk37 min
Aug 7, 6:52 PM CDTSpecial Weather StatementGIDPolk23 min
Aug 7, 6:53 PM CDTSevere Thunderstorm WarningGIDFranklin, Webster52 min
Aug 7, 6:36 PM CDTSevere Thunderstorm WarningGIDJewell, Smith24 min
Aug 7, 6:44 PM CDTSevere Thunderstorm WarningGIDOsborne, Rooks31 min

Nearby

Special Weather Statements in Nebraska, 2021Every special weather statement in 2021

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.