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 Aug 15, 2021, 6:35 AM CDT for Garfield 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
- Aug 15, 2021, 6:35 AM CDT (11:35 UTC)
- Expired
- Aug 15, 2021, 7:15 AM CDT
- In force
- 40 min
- Issued by
- NWS North Platte, NE
- Hail
- 0.75 in
- Wind
- 30
County Garfield County, NE
The radar
The North Platte radar (KLNX), 137 km from the middle of the area, began a volume at 11:37 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, 11.6 hours before the alert went out and 173 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
- 1783 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1421 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 276 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 16.9
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 Aug 15, 6:12 AM CDT, 23 minutes earlier.
Area forecast discussion, Aug 15, 6:12 AM CDT, 23 minutes before
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</html>Hazardous weather outlook, Aug 15, 3:53 AM CDT, 2 hours 42 minutes before
Hazardous Weather Outlook National Weather Service North Platte NE 353 AM CDT Sun Aug 15 2021 NEZ004>010-022>029-035>038-056>059-069>071-094-160900- 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- 353 AM CDT Sun Aug 15 2021 /253 AM MDT Sun Aug 15 2021/ This Hazardous Weather Outlook is for portions of western and north central Nebraska. .DAY ONE...TODAY AND TONIGHT. Isolated to scattered thunderstorms will move across north central and into central Nebraska this evening. Some storms may be severe capable of producing large hail and damaging winds. The greatest threat for thunderstorms will generally be east of US-83. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. Widespread thunderstorm activity is possible Wednesday through Saturday. The severe risk is uncertain at this time, although some locations may receive significant rainfall. .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, Aug 15, 1:27 AM CDT, 5 hours 8 minutes before
Special Weather Statement National Weather Service North Platte NE 127 AM CDT Sun Aug 15 2021 NEZ009-150730- Rock NE- 127 AM CDT Sun Aug 15 2021 ...A strong thunderstorm will impact portions of southwestern Rock County through 230 AM CDT... At 126 AM CDT, Doppler radar was tracking a strong thunderstorm near Rose, or 24 miles northeast of Brewster, moving northwest at 15 mph. HAZARD...Nickel size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Rose, Duff and Twin Lakes State Wildlife Management Area. This includes Highway 183 between mile markers 149 and 166. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. && LAT...LON 4231 9940 4209 9941 4209 9966 4239 9966 TIME...MOT...LOC 0626Z 138DEG 13KT 4214 9947 MAX HAIL SIZE...0.88 IN MAX WIND GUST...<30 MPH CDC
Special weather statement, Aug 15, 4:26 AM CDT, 2 hours 9 minutes before
Special Weather Statement
National Weather Service North Platte NE
426 AM CDT Sun Aug 15 2021
NEZ038-151030-
Custer NE-
426 AM CDT Sun Aug 15 2021
...Strong thunderstorms will impact portions of southeastern Custer
County through 530 AM CDT...
At 426 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Berwyn to Mason City. Movement was
southeast at 5 mph.
HAZARD...Penny size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible.
Locations impacted include...
Ansley, Mason City, Block Hill Basin, Gavin Siding and Intersection
of Highway 183 and Cumro Road.
This includes the following highways...
Highway 183 between mile markers 73 and 96.
Highway 2 between mile markers 292 and 307.
Highway 92 between mile markers 300 and 308.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4104 9937 4104 9938 4138 9944 4138 9922
4137 9920 4106 9921
TIME...MOT...LOC 0926Z 334DEG 6KT 4138 9941 4120 9929
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...<30 MPH
CDCSpecial weather statement, Aug 15, 5:29 AM CDT, 1 hour 6 minutes before
Special Weather Statement National Weather Service North Platte NE 529 AM CDT Sun Aug 15 2021 NEZ010-028-151115- Holt NE-Garfield NE- 529 AM CDT Sun Aug 15 2021 ...Strong thunderstorms will impact portions of north central Garfield and southwestern Holt Counties through 615 AM CDT... At 528 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Amelia to 11 miles southwest of Chambers. Movement was north at 10 mph. HAZARD...Penny size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Chambers, Amelia and Sunfish Lake. This includes the following highways... Highway 20 between mile markers 292 and 295. Highway 281 between mile markers 164 and 171. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. && LAT...LON 4253 9894 4223 9858 4199 9890 4235 9910 TIME...MOT...LOC 1028Z 176DEG 10KT 4227 9894 4207 9887 MAX HAIL SIZE...0.75 IN MAX WIND GUST...<30 MPH CDC
Special weather statement, Aug 15, 5:35 AM CDT, 1 hour before
Special Weather Statement National Weather Service North Platte NE 535 AM CDT Sun Aug 15 2021 NEZ038-151115- Custer NE- 535 AM CDT Sun Aug 15 2021 ...A strong thunderstorm will impact portions of east central Custer County through 615 AM CDT... At 535 AM CDT, Doppler radar was tracking a strong thunderstorm near Weissert, or 13 miles east of Broken Bow, moving northwest at 10 mph. HAZARD...Nickel size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Weissert and Westerville. This includes Highway 183 between mile markers 95 and 110. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. && LAT...LON 4138 9931 4134 9940 4150 9963 4161 9930 TIME...MOT...LOC 1035Z 156DEG 6KT 4140 9938 MAX HAIL SIZE...0.88 IN MAX WIND GUST...<30 MPH CDC
Special weather statement, Aug 15, 6:35 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 |
|---|---|---|---|---|
| Aug 14, 7:27 PM CDT | Special Weather Statement | LBF | Garden | 48 min |
| Aug 14, 7:59 PM CDT | Severe Thunderstorm Warning | LBF | Garden | 46 min |
| Aug 14, 8:34 PM CDT | Severe Thunderstorm Warning | LBF | Garden | 26 min |
| Aug 14, 8:57 PM CDT | Severe Thunderstorm Warning | LBF | Deuel, Garden | 48 min |
| Aug 15, 12:31 AM CDT | Special Weather Statement | LBF | Loup | 59 min |
| Aug 15, 1:27 AM CDT | Special Weather Statement | LBF | Rock | 63 min |
| Aug 15, 2:23 AM CDT | Severe Thunderstorm Warning | LBF | Brown, Rock | 31 min |
| Aug 15, 4:26 AM CDT | Special Weather Statement | LBF | Sherman | 64 min |
| Aug 15, 5:01 AM CDT | Areal Flood Advisory | LBF | Custer | 102 min |
| Aug 15, 5:29 AM CDT | Special Weather Statement | LBF | Holt | 46 min |
| Aug 15, 5:35 AM CDT | Special Weather Statement | LBF | Custer | 40 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.