Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS Hastings, NE

August 7, 2021Polk County, Nebraska

NWS Hastings, NE issued this special weather statement at Aug 7, 2021, 7:25 PM CDT for Polk County, Nebraska. It was in force for 35 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, 7:25 PM CDT (00:25 UTC)
Expired: Aug 7, 2021, 8:00 PM CDT
In force: 35 min
Issued by: NWS Hastings, NE
Hail: 0.75 in
Wind: 50

County Polk County, NE

The radar

The Omaha radar (KOAX), 92 km from the middle of the area, began a volume at 00:24 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

Omaha, NE (KOAX), launched 00:00Z, 0.4 hours before the alert went out and 92 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2933 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 1327 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 195 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.3

Open this sounding in Storm Lab

The text

As transmitted.

196 
WWUS83 KGID 080025
SPSGID

Special Weather Statement
National Weather Service Hastings NE
725 PM CDT Sat Aug 7 2021
 
NEZ049-080100-
Polk NE-
725 PM CDT Sat Aug 7 2021

...A strong thunderstorm will impact portions of northeastern Polk
County through 800 PM CDT...

At 725 PM CDT, Doppler radar was tracking a strong thunderstorm near
Duncan, or 8 miles southwest of Columbus, moving northeast at 15 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

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

This storm will remain over mainly rural areas of northeastern Polk
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
east central Nebraska.

&&

LAT...LON 4124 9748 4130 9761 4134 9757 4136 9752
      4137 9751 4137 9745 4138 9744 4139 9739
      4139 9737 4128 9737
TIME...MOT...LOC 0025Z 231DEG 15KT 4134 9746 

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

$$

Mangels

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 7:28 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay, Nuckolls, Webster	32 min
Aug 7, 7:37 PM CDT	Special Weather Statement	GID	Webster	23 min
Aug 7, 7:46 PM CDT	Severe Thunderstorm Warning	GID	Polk	29 min
Aug 7, 7:54 PM CDT	Severe Thunderstorm Warning	GID	Clay, Fillmore, Hamilton, York	51 min
Aug 7, 7:59 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay, Hall, Hamilton, Kearney, Merrick	31 min
Aug 7, 8:10 PM CDT	Severe Thunderstorm Warning	GID	Hall, Hamilton, Merrick, Nance, Polk, York	50 min
Aug 7, 8:20 PM CDT	Special Weather Statement	GID	Franklin	25 min
Aug 7, 8:23 PM CDT	Severe Thunderstorm Warning	GID	Franklin, Harlan, Webster	52 min
Aug 7, 8:24 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay, Hall, Hamilton	29 min
Aug 7, 8:46 PM CDT	Severe Thunderstorm Warning	GID	Adams, Buffalo, Hall, Kearney	44 min
Aug 7, 8:57 PM CDT	Severe Thunderstorm Warning	GID	Hamilton, Merrick, Polk, York	33 min
Aug 7, 9:03 PM CDT	Severe Thunderstorm Warning	GID	Thayer	42 min
Aug 7, 9:27 PM CDT	Severe Thunderstorm Warning	GID	Hall, Hamilton, Howard, Merrick	33 min
Aug 7, 9:30 PM CDT	Areal Flood Advisory	GID	Hall, Hamilton, Merrick, Polk, York	9 hr
Aug 7, 9:30 PM CDT	Severe Thunderstorm Warning	GID	Merrick, Nance, Polk	30 min
Aug 7, 9:44 PM CDT	Flash Flood Warning	GID	Polk	6 hr
Aug 7, 9:55 PM CDT	Severe Thunderstorm Warning	GID	Hall, Howard, Merrick	17 min
Aug 7, 10:03 PM CDT	Special Weather Statement	GID	Polk	27 min
Aug 8, 1:24 AM CDT	Special Weather Statement	GID	Webster	36 min
Aug 8, 1:32 AM CDT	Severe Thunderstorm Warning	GID	Webster	28 min
Aug 8, 2:05 AM CDT	Special Weather Statement	GID	Adams, Webster	25 min
Aug 8, 2:37 AM CDT	Special Weather Statement	GID	Hall	23 min
Aug 8, 3:04 AM CDT	Special Weather Statement	GID	Hall	26 min
Aug 8, 3:36 AM CDT	Areal Flood Warning	GID	Polk	7 hr
Aug 8, 2:09 PM CDT	Heat Advisory	GID	Adams, Buffalo, Clay, Fillmore, Franklin, Hall and 10 more	55 hr
Aug 7, 7:14 PM CDT	Severe Thunderstorm Warning	GID	Jewell, Mitchell, Osborne, Smith	46 min
Aug 7, 7:48 PM CDT	Special Weather Statement	GID	Jewell	27 min
Aug 7, 7:51 PM CDT	Severe Thunderstorm Warning	GID	Osborne, Phillips, Smith	39 min
Aug 7, 8:03 PM CDT	Severe Thunderstorm Warning	GID	Jewell	42 min

Nearby

Special Weather Statements in Nebraska, 2021 Every 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.