Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS Omaha, NE

April 7, 2021Cuming County, Dodge County, Nebraska

NWS Omaha, NE issued this special weather statement at Apr 7, 2021, 12:22 AM CDT for Cuming County, Dodge County, Nebraska. It was in force for 23 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: Apr 7, 2021, 12:22 AM CDT (05:22 UTC)
Expired: Apr 7, 2021, 12:45 AM CDT
In force: 23 min
Issued by: NWS Omaha, NE

Counties Cuming County, NE, Dodge County, NE

The radar

The Omaha radar (KOAX), 67 km from the middle of the area, began a volume at 05:22 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, 5.4 hours before the alert went out and 66 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: 337 J/kg
Mixed-layer CIN: -220 J/kg
Mixed-layer LCL: 1216 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Omaha, NE wrote its last area forecast discussion before this special weather statement went out at Apr 6, 11:59 PM CDT, 23 minutes earlier.

Area forecast discussion, Apr 6, 11:59 PM CDT, 23 minutes before

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Hazardous weather outlook, Apr 6, 9:32 PM CDT, 2 hours 50 minutes before

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
932 PM CDT Tue Apr 6 2021

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-071645-
Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont-
Page-Knox-Cedar-Thurston-Antelope-Pierce-Wayne-Boone-Madison-
Stanton-Cuming-Burt-Platte-Colfax-Dodge-Washington-Butler-
Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-Otoe-Saline-
Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson-
932 PM CDT Tue Apr 6 2021

This Hazardous Weather Outlook is for portions of southwest
Iowa...west central Iowa...east central Nebraska...northeast
Nebraska and southeast Nebraska.

.DAY ONE...Tonight and Wednesday

Thunderstorms remain possible tonight, with a limited severe risk
expected through around 3 AM. The best severe potential will be
along the Kansas Nebraska border and across northeast Nebraska.
Isolated wind gusts to 60 mph or dime to quarter size hail are
possible. Any severe risk should clear the Lincoln and Omaha
metros by 1 AM.

.DAYS TWO THROUGH SEVEN...Wednesday night through Tuesday

Thunderstorms are possible along and south of Interstate 80
Wednesday afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation could be needed in parts of southeast Nebraska
by late afternoon or this evening.

Albright

In the hours before

Special weather statement, Apr 6, 11:33 PM CDT, 49 minutes before

Special Weather Statement
National Weather Service Omaha/Valley Nebraska
1133 PM CDT Tue Apr 6 2021

NEZ017-018-031>033-042-043-070500-
Stanton NE-Madison NE-Pierce NE-Platte NE-Colfax NE-Cuming NE-
Wayne NE-
1133 PM CDT Tue Apr 6 2021

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN MADISON...SOUTHWESTERN
WAYNE...SOUTHWESTERN CUMING...COLFAX...NORTHEASTERN PLATTE...
SOUTHEASTERN PIERCE AND STANTON COUNTIES UNTIL MIDNIGHT CDT...

At 1132 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles northeast of Meadow Grove to near
Schuyler. Movement was northeast at 30 mph.

Penny size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Norfolk, Columbus, Madison, Pierce, Stanton, Battle Creek, Clarkson,
Howells, Leigh, Hadar, Hoskins, Creston, Richland, The Highway 15 And
32 Junction, Shell Creek Elementary School, Willow Creek State
Recreation Area, 9 Miles North Of Schuyler, Maple Creek Recreation
Area, Camp Luther and 8 Miles South Of Stanton.

LAT...LON 4237 9739 4165 9691 4162 9691 4138 9724
      4138 9727 4215 9772
TIME...MOT...LOC 0432Z 221DEG 25KT 4211 9764 4143 9713

Miller

Special weather statement, Apr 6, 11:39 PM CDT, 43 minutes before

Special Weather Statement
National Weather Service Omaha/Valley Nebraska
1139 PM CDT Tue Apr 6 2021

NEZ051-066-070515-
Saunders NE-Lancaster NE-
1139 PM CDT Tue Apr 6 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL LANCASTER AND
WESTERN SAUNDERS COUNTIES UNTIL 1215 AM CDT...

At 1139 PM CDT, Doppler radar was tracking a strong thunderstorm 5
miles east of Valparaiso, or 17 miles north of Lincoln, moving north
at 40 mph.

Penny size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Wahoo, Cedar Bluffs, Valparaiso, Weston, Prague, Ceresco, Davey,
Morse Bluff, Malmo and Colon.

LAT...LON 4097 9663 4100 9687 4144 9683 4139 9649
TIME...MOT...LOC 0439Z 188DEG 36KT 4106 9674

Miller

Special weather statement, Apr 6, 11:54 PM CDT, 28 minutes before

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Special weather statement, Apr 7, 12:22 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 11:33 PM CDT	Special Weather Statement	OAX	Colfax, Stanton	27 min
Apr 6, 11:39 PM CDT	Special Weather Statement	OAX	Saunders	36 min
Apr 6, 11:54 PM CDT	Special Weather Statement	OAX	Colfax, Stanton, Wayne	36 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.