Alert archive / Nebraska / Special Weather Statements in 2019

Special Weather Statement, NWS North Platte, NE

August 14, 2019Arthur County, Nebraska

NWS North Platte, NE issued this special weather statement at Aug 14, 2019, 11:13 AM MDT for Arthur County, Nebraska. It was in force for 32 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 14, 2019, 11:13 AM MDT (17:13 UTC)
Expired: Aug 14, 2019, 11:45 AM MDT
In force: 32 min
Issued by: NWS North Platte, NE

County Arthur County, NE

The radar

The North Platte radar (KLNX), 85 km from the middle of the area, began a volume at 17:16 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 12:00Z, 5.2 hours before the alert went out and 91 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: 8 J/kg
Mixed-layer CIN: -405 J/kg
Mixed-layer LCL: 853 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 127 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 North Platte, NE wrote its last area forecast discussion before this special weather statement went out at Aug 14, 5:35 AM MDT, 5 hours 38 minutes earlier.

Area forecast discussion, Aug 14, 5:35 AM MDT, 5 hours 38 minutes before

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Hazardous weather outlook, Aug 14, 9:19 AM MDT, 1 hour 54 minutes before

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In the hours before

Special weather statement, Aug 14, 10:24 AM MDT, 49 minutes before

Special Weather Statement
National Weather Service North Platte NE
1124 AM CDT Wed Aug 14 2019

NEZ023-024-035-036-141700-
Hooker-Grant-Arthur-McPherson-
1124 AM CDT Wed Aug 14 2019

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN ARTHUR...
SOUTHEASTERN GRANT...SOUTHWESTERN HOOKER AND NORTHWESTERN MCPHERSON
COUNTIES...

At 1123 AM CDT/1023 AM MDT/, strong thunderstorms were clustered 13
miles southeast of Hyannis, or 18 miles north of Arthur, moving east
at 30 mph.

Pea size hail is possible with this storm.

Locations impacted include...
Pratt Lake, Spring Valley Lake and Cogill Lake.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4178 10170 4190 10171 4191 10130 4173 10132
TIME...MOT...LOC 1623Z 268DEG 28KT 4184 10162

ET

Special weather statement, Aug 14, 11:13 AM MDT, 0 minutes before

Special Weather Statement
National Weather Service North Platte NE
1213 PM CDT Wed Aug 14 2019

NEZ035-036-141745-
Arthur-McPherson-
1213 PM CDT Wed Aug 14 2019

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN ARTHUR
AND NORTHWESTERN MCPHERSON COUNTIES...

At 1213 PM CDT/1113 AM MDT/, strong thunderstorms were clustered 7
miles northeast of Arthur, moving east at 35 mph.

Half inch hail is possible with this storm.

Locations impacted include...
Sand Beach Lake, Lena, Sand Puddin Lake, Three Mile Lake, Flatts, Big
Lamunyon Flats, Diamond Bar Lake, Bucktail, Schnick Lake and Calora.

This includes Highway 92 between mile markers 167 and 187.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4156 10165 4171 10164 4173 10123 4150 10126
TIME...MOT...LOC 1713Z 275DEG 31KT 4163 10156

ET

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 13, 6:46 PM MDT	Areal Flood Advisory	LBF	Hayes	12 hr
Aug 14, 10:24 AM MDT	Special Weather Statement	LBF	Grant	36 min
Aug 14, 11:37 AM MDT	Special Weather Statement	LBF	McPherson	38 min
Aug 14, 12:32 PM MDT	Special Weather Statement	LBF	Lincoln	43 min
Aug 14, 2:28 PM MDT	Special Weather Statement	LBF	McPherson	47 min
Aug 14, 3:13 PM MDT	Special Weather Statement	LBF	Lincoln	47 min
Aug 14, 4:50 PM MDT	River Flood Advisory	LBF	Hayes	36 hr

Nearby

Special Weather Statements in Nebraska, 2019 Every special weather statement in 2019

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.