Alert archive / Nebraska / Special Weather Statements in 2016

Special Weather Statement, NWS North Platte, NE

July 22, 20169 counties in Nebraska

NWS North Platte, NE issued this special weather statement at Jul 22, 2016, 10:10 PM MDT for 9 counties in Nebraska. It was in force for 65 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: Jul 22, 2016, 10:10 PM MDT (04:10 UTC)
Expired: Jul 22, 2016, 11:15 PM MDT
In force: 65 min
Issued by: NWS North Platte, NE

Counties Arthur County, NE, Chase County, NE, Hayes County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 123 km from the middle of the area, began a volume at 04:10 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.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.2 hours before the alert went out and 64 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: 5536 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 1380 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.1

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 Jul 22, 5:27 PM MDT, 4 hours 43 minutes earlier.

Area forecast discussion, Jul 22, 5:27 PM MDT, 4 hours 43 minutes before

Area Forecast Discussion...UPDATED
National Weather Service North Platte NE
627 PM CDT FRI JUL 22 2016

.SYNOPSIS...
Issued at 344 PM CDT Fri Jul 22 2016

This morning's H5 analysis had high pressure centered
over the Oklahoma panhandle. This feature extended west to off the
California coast and east into western Alabama. On the periphery
of this feature, shortwaves were located over northwestern Kansas,
northern Utah, western Nevada and Baja California. North of the
high, ridging extended north into the Dakotas. West of this ridge,
a trough of low pressure was located over western Washington and
extended south into northern California. A 50+ kt jet streak was
south of the shortwave and extended from northern California into
western Montana. At the surface, a stationary front was anchored
over southern and western South Dakota with a surface trough
extending south from this feature, a trough of low pressure
extended from southeastern South Dakota into eastern Nebraska and
central Kansas. Very moist air was present across western and
north central Nebraska this afternoon with dew points in the mid
to upper 70s. The exception was over portions of the sandhills and
the eastern panhandle, where dew points were in the upper 50s to
60s. Readings as of 3 PM CDT ranged from 92 at Broken Bow to 98 at
Imperial.

&&

.SHORT TERM...(This evening through Saturday)
Issued at 344 PM CDT Fri Jul 22 2016

A weak surface front combined with an upper level disturbance will
bring isolated to scattered thunderstorms to the area tonight. The
best chance will be generally along and south of an O'Neill to
Thedford to Ogallala line, which is closer to the stalled front
across southwest and south central Nebraska. Overall shear is quite
weak again today within subtropical plume around upper level high
pressure centered to our south, but surface based cape is very
strong. Expecting that a few storms could produce gusty winds and
brief heavy rain, but hail is a minimal threat due to such warm air
aloft and weak shear.

A shortwave disturbance will move across southern Canada and the
northern plains Saturday, which will drive a cold front south across
the area. Ahead of the front expect another hot and humid day, and
have extended the heat warning and advisory ahead of the front from
roughly Ainsworth to Grant and areas to the southeast. There is a
slight chance for thunderstorm development later Saturday afternoon
along the front from the O'Neill area southwest through Broken Bow
and McCook.

.LONG TERM...(Saturday night through Friday)
Issued at 344 PM CDT Fri Jul 22 2016

n the mid range, the main forecast challenge is
precipitation chances Saturday night/Sunday. For Saturday night, a
cold front will pass through the far eastern portions of the cwa and
is expected to clear the forecast area by mid evening. Thunderstorms
will be possible INVOF of the front in the east and far southeastern
forecast area through mid evening. This activity will shift quickly
east and south overnight as the front stalls off to the south of the
forecast area. The next threat for precipitation will arrive on
Sunday north of the frontal boundary. Both the NAM and GFS solutions
develop a nice area of lift along the H7 front Sunday. This feature
is anchored across the central forecast area. Have introduced some
low pops across the forecast area-from the sandhills south, for
Sunday. Have kept pops fairly low as qpf's will be light given the
drier layer below 10000 ft agl. Precipitation chances will shift
south into the southern cwa for Sunday night as a shortwave trough
lifts over the stalled out frontal boundary. ATTM the bulk of pcpn
should be INVOF of the front, so have opted for only slight chance
pops in the forecast area Sunday night. On Monday, we will see
mainly dry conds as the surface front is forced further south into
central Kansas. By late afternoon/evening the front will begin to
lift north over eastern Colorado as southerly winds develop on the
back side of exiting high pressure. Isolated thunderstorms will be
possible in some western areas late Monday into Monday night in the
vicinity of theta e axis.

Upper level high pressure will continue to drift west into the swrn
CONUS next week. Westerly flow aloft will become more northwesterly
toward the middle of next week. This will result in a more active
pattern with seasonal highs in the 80s. There will be a threat for
thunderstorms each day particularly in the late afternoon and
evening hours.

&&

.AVIATION...(For the 00Z TAFS through 00Z Saturday evening)
Issued at 627 PM CDT Fri Jul 22 2016

Radar trends and upper level wind fields suggest the thunderstorm
complex across Western Nebraska will move slowly east-northeast
tonight. Storm coverage is very uncertain given than the model
are showing poor skill. The forecast uses an extrapolation of the
ongoing radar coverage.

&&

.LBF Watches/Warnings/Advisories...
Heat Advisory until 7 PM CDT /6 PM MDT/ Saturday for NEZ058-069-
070.

Excessive Heat Warning until 7 PM CDT Saturday for NEZ006>010-
026>029-037-038-059-071.

Excessive Heat Warning until 7 PM CDT /6 PM MDT/ this evening
for NEZ005-024-025-036-094.

Heat Advisory until 6 PM MDT this evening for NEZ004-022-023-035-
056-057.

&&

SYNOPSIS...Buttler
SHORT TERM...Taylor
LONG TERM...Buttler
AVIATION...CDC

Hazardous weather outlook, Jul 22, 3:00 PM MDT, 7 hours 10 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
400 PM CDT FRI JUL 22 2016

NEZ004>010-022>029-035>038-056>059-069>071-094-232100-
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-
400 PM CDT FRI JUL 22 2016 /300 PM MDT FRI JUL 22 2016/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA.

.DAY ONE...TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE ACROSS WESTERN
AND NORTH CENTRAL NEBRASKA TONIGHT. SOME OF THE THUNDERSTORMS
COULD BE STRONG WITH GUSTY WINDS BEING THE MAIN THREAT.

HEAT INDEX VALUES OVER 105 DEGREES CAN BE EXPECTED EARLY THIS EVENING
ALONG AND EAST OF AN AINSWORTH TO NORTH PLATTE LINE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

IT WILL BE HOT ONCE AGAIN SATURDAY AHEAD OF A COLD FRONT. HEAT
INDEX VALUES WILL ONCE AGAIN TOP 105 DEGREES IN PLACES ALONG AND
EAST OF AN AINSWORTH TO NORTH PLATTE LINE. THERE WILL BE A SLIGHT
CHANCE FOR THUNDERSTORMS ALONG AND AHEAD OF THE FRONT FROM O'NEILL
TO MCCOOK AND AREAS TO THE EAST.

CHANCES FOR THUNDERSTORMS RETURN TO THE REGION MUCH OF NEXT WEEK.
LATER FORECASTS WILL REFINE THE POTENTIAL FOR SEVERE
THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION SHOULD NOT BE NEEDED TONIGHT.

&&

GET YOUR WEATHER...HYDROLOGICAL...AND CLIMATE INFORMATION AT
HTTP://WWW.WEATHER.GOV/NORTHPLATTE (ALL LOWERCASE)

TAYLOR

In the hours before

Local storm report, Jul 22, 7:44 PM MDT, 2 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
844 PM CDT FRI JUL 22 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0838 PM     TSTM WND GST     11 WNW LEWELLEN         41.37N 102.35W
07/22/2016  E60 MPH          GARDEN             NE   PUBLIC

&&

MARTIN

Special weather statement, Jul 22, 8:10 PM MDT, 2 hours before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
810 PM MDT FRI JUL 22 2016

NEZ057-230300-
KEITH NE-
810 PM MDT FRI JUL 22 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN KEITH COUNTY UNTIL
900 PM MDT...

AT 809 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8
MILES WEST OF LEMOYNE...OR 17 MILES NORTHWEST OF OGALLALA...MOVING
EAST AT 15 MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
LEMOYNE...LAKE VIEW CAMPGROUND...RUTHON...BELMAR...
EAGLE GULCH CAMPGROUND AND OTTER CREEK CAMPGROUND.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 61 BETWEEN MILE MARKERS 101 AND 109.
 HIGHWAY 92 BETWEEN MILE MARKERS 121 AND 137.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF ON OR NEAR LAKE MCCONAUGHY...GET OUT OF THE WATER AND MOVE
INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO
15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW.
DO NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM.

&&

LAT...LON 4119 10175 4126 10203 4138 10200 4139 10163
TIME...MOT...LOC 0209Z 276DEG 15KT 4131 10196

CDC

Special weather statement, Jul 22, 9:19 PM MDT, 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1019 PM CDT FRI JUL 22 2016

NEZ022-024-025-035>037-056>059-069-070-230415-
CHASE NE-GARDEN NE-THOMAS NE-HOOKER NE-DEUEL NE-KEITH NE-ARTHUR NE-
LINCOLN NE-HAYES NE-PERKINS NE-LOGAN NE-MCPHERSON NE-
1019 PM CDT FRI JUL 22 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN HAYES...CHASE...
ARTHUR...SOUTHERN GARDEN...DEUEL...KEITH...SOUTHWESTERN THOMAS...
PERKINS...MCPHERSON...WESTERN LINCOLN...WESTERN LOGAN AND
SOUTHEASTERN HOOKER COUNTIES UNTIL 1115 PM CDT/1015 PM MDT/...

AT 1018 PM CDT/918 PM MDT/...DOPPLER RADAR WAS TRACKING A LINE OF
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 16 MILES NORTHEAST
OF ARTHUR TO 11 MILES NORTH OF SUTHERLAND TO 9 MILES SOUTH OF
LAMAR...AND MOVING EAST AT 15 MPH.

1 INCH OF RAINFALL...DIME SIZE HAIL AND WINDS AROUND 40 MPH WILL BE
POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
NORTH PLATTE...OGALLALA...IMPERIAL...GRANT...CHAPPELL...OSHKOSH...BIG
SPRINGS...ARTHUR...TRYON...SUTHERLAND...HERSHEY...WAUNETA...PAXTON...
WALLACE...BRULE...MADRID...LEWELLEN...VENANGO...ELSIE AND LAMAR.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 61 BETWEEN MILE MARKERS 25 AND 132.
 HIGHWAY 92 BETWEEN MILE MARKERS 115 AND 221.
 HIGHWAY 97 BETWEEN MILE MARKERS 1 AND 48.
 INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 84 AND 176.
 HIGHWAY 83 BETWEEN MILE MARKERS 84 AND 90.

LAT...LON 4037 10205 4100 10205 4101 10247 4129 10261
      4140 10261 4171 10160 4186 10058 4122 10070
      4035 10136
TIME...MOT...LOC 0318Z 250DEG 15KT 4168 10140 4132 10120 4044 10201

CDC

Local storm report, Jul 22, 9:48 PM MDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1048 PM CDT FRI JUL 22 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1040 PM     TSTM WND GST     TRYON                   41.56N 100.94W
07/22/2016  E80 MPH          MCPHERSON          NE   LAW ENFORCEMENT

            70 TO 80 MPH WIND GUSTS ESTIMATED.

&&

CCOLE

Local storm report, Jul 22, 9:49 PM MDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1049 PM CDT FRI JUL 22 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0330 PM     HAIL             9 SW OSHKOSH            41.32N 102.47W
07/22/2016  E1.00 INCH       GARDEN             NE   PUBLIC

0825 PM     HAIL             6 NNE BRULE             41.17N 101.83W
07/22/2016  E1.00 INCH       KEITH              NE   PUBLIC

0838 PM     TSTM WND GST     11 WNW LEWELLEN         41.37N 102.35W
07/22/2016  E60.00 MPH       GARDEN             NE   PUBLIC

1040 PM     TSTM WND GST     TRYON                   41.56N 100.94W
07/22/2016  E80.00 MPH       MCPHERSON          NE   LAW ENFORCEMENT

            70 TO 80 MPH WIND GUSTS ESTIMATED.

&&

CCOLE

Special weather statement, Jul 22, 10:10 PM MDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1110 PM CDT FRI JUL 22 2016

NEZ024>026-035>038-057>059-069>071-230515-
CHASE NE-HOOKER NE-KEITH NE-LINCOLN NE-PERKINS NE-LOGAN NE-BLAINE NE-
MCPHERSON NE-THOMAS NE-ARTHUR NE-FRONTIER NE-HAYES NE-CUSTER NE-
1110 PM CDT FRI JUL 22 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN BLAINE...HAYES...
ARTHUR...CHASE...WESTERN FRONTIER...NORTHWESTERN CUSTER...
SOUTHEASTERN GARDEN...KEITH...SOUTHEASTERN GRANT...SOUTHERN HOOKER...
SOUTHERN THOMAS...MCPHERSON...PERKINS...LINCOLN AND LOGAN COUNTIES
UNTIL 1215 AM CDT/1115 PM MDT/...

AT 1108 PM CDT/1008 PM MDT/...DOPPLER RADAR WAS TRACKING A LINE OF
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 14 MILES NORTH OF
STAPLETON TO 7 MILES WEST OF LAKE MALONEY STATE RECREATION AREA TO
NEAR ENDERS RESERVOIR STATE RECREATION AREA...AND MOVING EAST AT 20
MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THE
STRONG STORMS. SOME STORMS MAY PRODUCE LOCALLY HEAVY RAINFALL OF 1
TO 2 INCHES AND SOME STORMS MAY BECOME SEVERE AND PRODUCE HIGH
WINDS. WARNINGS FOR THESE STORMS WILL BE ISSUED AS WARRANTED.

LOCATIONS IMPACTED INCLUDE...
NORTH PLATTE...OGALLALA...IMPERIAL...GRANT...STAPLETON...
HAYES CENTER...ARTHUR...BREWSTER...TRYON...SUTHERLAND...HERSHEY...
ARNOLD...WAUNETA...PAXTON...BRADY...WALLACE...BRULE...MAXWELL...
MADRID AND VENANGO.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 2 BETWEEN MILE MARKERS 228 AND 254.
 HIGHWAY 61 BETWEEN MILE MARKERS 25 AND 134.
 HIGHWAY 92 BETWEEN MILE MARKERS 122 AND 259.
 HIGHWAY 97 BETWEEN MILE MARKERS 1 AND 50.
 INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 111 AND 201.
 HIGHWAY 83 BETWEEN MILE MARKERS 35 AND 140.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4035 10205 4066 10205 4166 10197 4183 10091
      4196 9973 4035 10072
TIME...MOT...LOC 0408Z 258DEG 24KT 4169 10052 4104 10091 4039 10153

CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 6:08 PM MDT	Special Weather Statement	LBF	Garden	52 min
Jul 22, 6:32 PM MDT	Special Weather Statement	LBF	Garden	43 min
Jul 22, 6:55 PM MDT	Flash Flood Warning	LBF	Garden	3 hr
Jul 22, 7:11 PM MDT	Special Weather Statement	LBF	Keith	49 min
Jul 22, 7:15 PM MDT	Severe Thunderstorm Warning	LBF	Deuel, Garden	45 min
Jul 22, 7:23 PM MDT	Severe Thunderstorm Warning	LBF	Keith	37 min
Jul 22, 7:45 PM MDT	Tornado Warning	LBF	Arthur	45 min
Jul 22, 8:10 PM MDT	Special Weather Statement	LBF	Keith	50 min
Jul 22, 8:18 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Keith	42 min
Jul 22, 8:20 PM MDT	Tornado Warning	LBF	Arthur, Keith	25 min
Jul 22, 8:54 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, McPherson	39 min
Jul 22, 9:19 PM MDT	Special Weather Statement	LBF	Arthur, Chase, Deuel, Keith, McPherson, Perkins	56 min
Jul 22, 9:43 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, Logan, McPherson, Thomas	47 min
Jul 22, 10:26 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Logan, Thomas	49 min
Jul 22, 11:11 PM MDT	Special Weather Statement	LBF	Chase, Custer, Frontier, Hayes, Lincoln, Logan and 1 more	64 min

Nearby

Special Weather Statements in Nebraska, 2016 Every special weather statement in 2016

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.