Alert archive / Nebraska / Special Weather Statements in 2021
Special Weather Statement, NWS North Platte, NE
NWS North Platte, NE issued this special weather statement at Apr 6, 2021, 7:39 PM CDT for Sherman County, Nebraska. It was in force for 36 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 6, 2021, 7:39 PM CDT (00:39 UTC)
- Expired
- Apr 6, 2021, 8:15 PM CDT
- In force
- 36 min
- Issued by
- NWS North Platte, NE
County Sherman County, NE
The radar
The Grand Island radar (KUEX), 119 km from the middle of the area, began a volume at 00:43 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, 0.7 hours before the alert went out and 102 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 670 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 173 m²/s²
- 0-3 km storm-relative helicity
- 362 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted.
180 WWUS83 KLBF 070039 SPSLBF Special Weather Statement National Weather Service North Platte NE 739 PM CDT Tue Apr 6 2021 NEZ038-070115- Custer NE- 739 PM CDT Tue Apr 6 2021 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN CUSTER COUNTY UNTIL 815 PM CDT... At 739 PM CDT, Doppler radar was tracking a strong thunderstorm 8 miles northeast of Sumner, or 24 miles northeast of Lexington, moving north at 30 mph. Nickel size hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Block Hill Basin, Intersection of Highway 183 and Cumro Road and Cumro. This includes Highway 183 between mile markers 73 and 83. LAT...LON 4105 9932 4105 9957 4124 9951 4117 9920 TIME...MOT...LOC 0039Z 197DEG 27KT 4105 9944 $$ Snively
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 7:01 PM CDT | Special Weather Statement | LBF | Custer | 29 min |
| Apr 6, 7:04 PM CDT | Special Weather Statement | LBF | McPherson | 41 min |
| Apr 6, 7:21 PM CDT | Special Weather Statement | LBF | Cherry | 39 min |
| Apr 6, 7:23 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 37 min |
| Apr 6, 7:30 PM CDT | Special Weather Statement | LBF | Sherman | 30 min |
| Apr 6, 7:30 PM CDT | Special Weather Statement | LBF | Logan, Thomas | 45 min |
| Apr 6, 7:43 PM CDT | Special Weather Statement | LBF | Thomas | 47 min |
| Apr 6, 8:00 PM CDT | Special Weather Statement | LBF | Cherry | 45 min |
| Apr 6, 8:01 PM CDT | Special Weather Statement | LBF | Custer | 44 min |
| Apr 6, 8:23 PM CDT | Special Weather Statement | LBF | Logan, Thomas | 52 min |
| Apr 6, 8:43 PM CDT | Special Weather Statement | LBF | Cherry | 47 min |
| Apr 6, 9:13 PM CDT | Special Weather Statement | LBF | Blaine, Thomas | 47 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.