Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 3, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Apr 5, 2021, 1:07 AM CDT for Burt County, Dodge County, Washington County, Nebraska. It was in force for 23 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 5, 2021, 1:07 AM CDT (06:07 UTC)
- Expired
- Apr 5, 2021, 1:30 AM CDT
- In force
- 23 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Burt County, NE, Dodge County, NE, Washington County, NE
The radar
The Omaha radar (KOAX), 20 km from the middle of the area, began a volume at 06:10 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 5, 1:11 AM CDT | NON-TSTM WND GST 70 | 4 Wsw Kennard, NE | MESONET STATION UP342 4.1 SW KENNARD (UPR). |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 6.1 hours before the alert went out and 21 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.
- Mixed-layer CAPE
- 452 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 3078 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
921 WUUS53 KOAX 050607 SVROAX NEC021-053-177-050630- /O.NEW.KOAX.SV.W.0003.210405T0607Z-210405T0630Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Omaha/Valley Nebraska 107 AM CDT Mon Apr 5 2021 The National Weather Service in Omaha has issued a * Severe Thunderstorm Warning for... Southern Burt County in east central Nebraska... Western Washington County in east central Nebraska... Southeastern Dodge County in east central Nebraska... * Until 130 AM CDT. * At 106 AM CDT, outflow associated with weakening showers was located near Arlington, or 25 miles northwest of Omaha, moving northeast at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Arlington, Nickerson, Kennard and Washington. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4140 9641 4159 9650 4173 9637 4140 9607 TIME...MOT...LOC 0606Z 241DEG 24KT 4149 9641 HAIL...<.75IN WIND...60MPH $$ Mead
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 8:21 PM CDT | Special Weather Statement | OAX | Butler | 39 min |
| Apr 4, 10:44 PM CDT | Special Weather Statement | OAX | Platte | 31 min |
| Apr 4, 11:03 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax, Platte | 14 min |
| Apr 4, 11:47 PM CDT | Special Weather Statement | OAX | Colfax | 28 min |
| Apr 5, 12:24 AM CDT | Severe Thunderstorm Warning | OAX | Dodge, Douglas, Sarpy, Saunders, Washington | 36 min |
| Apr 5, 1:28 AM CDT | Severe Thunderstorm Warning | OAX | Douglas, Washington | 32 min |
| Apr 5, 2:05 AM CDT | Special Weather Statement | OAX | Colfax, Dodge, Saunders | 55 min |
| Apr 5, 2:08 AM CDT | Special Weather Statement | OAX | Burt | 52 min |
| Apr 5, 2:52 AM CDT | Special Weather Statement | OAX | Dodge, Douglas, Washington | 53 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.