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 May 2, 2021, 1:35 AM CDT for Brown County, Keya Paha County, Rock County, Nebraska. It was in force for 40 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
- May 2, 2021, 1:35 AM CDT (06:35 UTC)
- Expired
- May 2, 2021, 2:15 AM CDT
- In force
- 40 min
- Issued by
- NWS North Platte, NE
Counties Brown County, NE, Keya Paha County, NE, Rock County, NE
The radar
The North Platte radar (KLNX), 125 km from the middle of the area, began a volume at 06:39 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, 6.6 hours before the alert went out and 194 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
- 34 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 3819 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>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 North Platte, NE wrote its last area forecast discussion before this special weather statement went out at May 2, 12:42 AM CDT, 53 minutes earlier.
Area forecast discussion, May 2, 12:42 AM CDT, 53 minutes before
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</html>Hazardous weather outlook, May 1, 8:51 PM CDT, 4 hours 44 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service North Platte NE 851 PM CDT Sat May 1 2021 NEZ004>010-022>029-035>038-056>059-069>071-094-030200- Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden- Grant-Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson- Logan-Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier- Western Cherry- 851 PM CDT Sat May 1 2021 /751 PM MDT Sat May 1 2021/ This Hazardous Weather Outlook is for portions of western and north central Nebraska. .DAY ONE...TONIGHT. Isolated thunderstorms are possible this evening north of a line from Ogallala to Ainsworth. While severe weather is not anticipated, locally gusty winds could occur in the western Sandhills this evening. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. Thunderstorms are possible Sunday afternoon and evening for much of western and north central Nebraska. A few strong storms are possible generally along and south of Interstate 80 Sunday evening. The primary hazard in the strongest storms will be gusty winds and hail. Isolated thunderstorms are possible Wednesday afternoon and evening across most of western and north central Nebraska. At this time, the threat for severe storms is low. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed through tonight. && Get your weather, hydrological, and climate information at http://www.weather.gov/northplatte
In the hours before
Special weather statement, May 1, 10:20 PM CDT, 3 hours 15 minutes before
Special Weather Statement National Weather Service North Platte NE 920 PM MDT Sat May 1 2021 NEZ004-022-023-035-056-057-020400- Deuel NE-Sheridan NE-Grant NE-Arthur NE-Garden NE-Keith NE- 920 PM MDT Sat May 1 2021 ...SIGNIFICANT WEATHER ADVISORY FOR ARTHUR...GRANT...KEITH...EASTERN GARDEN...SOUTHEASTERN SHERIDAN AND DEUEL COUNTIES UNTIL 1000 PM MDT... At 919 PM MDT, Doppler radar was tracking showers with a few embedded thunderstorms along a line extending from 9 miles southwest of Ashby to near Chappell. Movement was east at 30 mph. Winds in excess of 40 mph will be possible with these storms. Locations impacted include... Ogallala, Chappell, Oshkosh, Big Springs, Arthur, Brule, Lewellen, Hyannis, Kingsley Dam, Barton, Roscoe, Whitman, Keystone, Ashby, Lemoyne, Dogtown Flats, Pratt Lake, Ruthon, Haythorn Lake and Rackett. This includes the following highways... Highway 2 between mile markers 120 and 163. Highway 61 between mile markers 80 and 164. Highway 92 between mile markers 115 and 177. Interstate 80 in Nebraska between mile markers 83 and 142. LAT...LON 4210 10225 4207 10145 4102 10141 4100 10255 TIME...MOT...LOC 0319Z 276DEG 28KT 4194 10207 4106 10242 Roberg
Special weather statement, May 1, 10:34 PM CDT, 3 hours 1 minute before
Special Weather Statement National Weather Service North Platte NE 934 PM MDT Sat May 1 2021 NEZ004-094-020415- Sheridan NE-Western Cherry NE- 934 PM MDT Sat May 1 2021 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CHERRY AND NORTHERN SHERIDAN COUNTIES UNTIL 1015 PM MDT... At 932 PM MDT, Doppler radar was tracking showers and thunderstorms along a line extending from 11 miles east of White Clay to 8 miles south of Rushville. Movement was east at 45 mph. Winds in excess of 40 mph will be possible along and behind this line of storms. Locations impacted include... Gordon, Rushville, Hay Springs, Merriman, White Clay, Clinton, Intersection of Highway 87 and Craven Creek Road, Billys Lake, Lone Butte, Irwin, Intersection of Beaver Creek Road and White Clay Creek Road, Intersection of Highway 87 and Larabee Road, Rock Hill, Pine Ridge, Hoover Lake, Metcalf State Wildlife Management Area, Morgan Lake, Highway 27 crossing the Niobrara River, Mount Maria and Intersection of Highway 20 and Irwin Road. This includes the following highways... Highway 20 between mile markers 75 and 139. Highway 250 between mile markers 33 and 48. Highway 61 between mile markers 207 and 230. LAT...LON 4299 10160 4238 10181 4256 10276 4300 10278 TIME...MOT...LOC 0332Z 284DEG 41KT 4296 10235 4260 10245 Roberg
Special weather statement, May 2, 1:35 AM CDT, 0 minutes before
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</html>The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 10:20 PM CDT | Special Weather Statement | LBF | Arthur, Deuel, Garden, Grant, Keith | 40 min |
| May 1, 10:34 PM CDT | Special Weather Statement | LBF | Sheridan | 41 min |
| May 2, 2:13 AM CDT | Special Weather Statement | LBF | Boyd, Holt | 62 min |
| May 2, 3:52 PM CDT | Special Weather Statement | LBF | Arthur | 38 min |
| May 2, 5:48 PM CDT | Special Weather Statement | LBF | Frontier | 42 min |
| May 2, 6:11 PM CDT | Special Weather Statement | LBF | Hayes | 49 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.