Special Weather Statement, NWS North Platte, NE

Area Forecast Discussion
National Weather Service North Platte NE
332 PM CDT TUE JUN 14 2016

.SHORT TERM...(This evening through Wednesday)
Issued at 310 PM CDT Tue Jun 14 2016

The main forecast challenges over the next 24 hours are isolated
thunderstorms late this afternoon and early evening and the return
of hot temperatures for Wednesday.

This evening and tonight... extended isoT through 00z from Merriman
to Broken Bow and points east. In association with the upper low
over the Northern Plains, some storm development is underway as of
20z across eastern Cherry Co. The environment downstream invof KANW
and KONL are supportive of continued convective activity, albeit
limited coverage. RAP estimates around 1500j/kg MUCAPE and LI around
-3 due to early PM sunshine and cooler H5 temps from the low. Deep
shear is relatively weak, so not expecting much upscale growth.
Storms should dissipate toward 00z with the loss of daytime heating.
Lowered min temps overnight slightly, mainly across the west and in
the Platte river valleys due to mostly clear skies and light surface
winds.

Wednesday... attention turns toward the building upper ridge across
the Plains. A weak leeside surface boundary sets up along the WY/CO
mountains, which turns the low level flow from west to south across
western Neb. 14/12z and 14/18z model suites consistent with a
warming trend with H85 temps exceeding 25C by 00z Thu. Despite some
low level lift, forecast soundings show abundant dry air and very
deep mixed layers to 600hpa. Increased max temps a degree or two to
lower/mid 90s north and mid/upper 90s south.

.LONG TERM...(Wednesday night through Tuesday)
Issued at 310 PM CDT Tue Jun 14 2016

The upper level ridge will continue to amplify across the central
Conus through Friday. This will bring highs from 95 to 100
for Thursday and mid to upper 90s Friday. Dewpoints in the 60s
across the eastern half of the fa will increase concerns for high
heat indices near 100 each day.

A disturbance will move into the northern plains Friday, and
could triggered isolated storms north of interstate 80, which is
similar to previous fcst. This seems reasonable given that under
recent upper ridge, isolated storms also developed.

Still at least the upper 80s to lower 90s Saturday and Sunday as
the upper ridge flattens out and a weak front drops south.

A gradual cooldown to the upper 80s by monday and tuesday as
hottest airmass is shunted toward the swrn u.s. and southern
plains. A slight chance of storms Sunday night through Tuesday,
mainly for the north and east.

&&

.AVIATION...(For the 18Z TAFS through 18Z Wednesday afternoon)
Issued at 1227 PM CDT Tue Jun 14 2016

VFR conditions will continue across western Nebraska through
Wednesday afternoon. Gusty west winds will affect all terminals
this afternoon and early evening. Spotty showers and
thunderstorms are possible late afternoon across north central
Nebraska, mainly invof KONL.

&&

.HYDROLOGY...
Issued at 310 PM CDT Tue Jun 14 2016

Minor flooding continues along the North Platte River near
Lewellen and upstream of Lake McConaughy. The gauge at North Platte
continues to read moderate flood stage. Flooding is a result of
increased releases from reservoirs in Wyoming...as well as increased
releases from Lake McConaughy. Flooding is expected to continue
through June. Elevated levels are present on the North Platte River
near Lisco, South Platte River at Roscoe and North Platte, and the
Platte River near Brady.

&&

.LBF Watches/Warnings/Advisories...
None.
&&

SHORT TERM...Snively
LONG TERM...Roberg
AVIATION...Snively
HYDROLOGY...Snively

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
750 AM CDT TUE JUN 14 2016

NEZ004>010-022>029-035>038-056>059-069>071-094-151300-
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-
750 AM CDT TUE JUN 14 2016 /650 AM MDT TUE JUN 14 2016/

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

.DAY ONE...TODAY AND TONIGHT.

ISOLATED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON GENERALLY EAST
OF A LINE FROM VALENTINE TO AINSWORTH TO BURWELL. THE RISK FOR
SEVERE WEATHER IS MARGINAL BUT LARGE HAIL AND WIND DAMAGE ARE
THE THREAT IF STORMS DEVELOP.

MINOR TO MODERATE FLOODING WILL CONTINUE ALONG THE NORTH PLATTE
RIVER FROM LEWELLEN TO NORTH PLATTE. ELEVATED RIVER LEVELS REMAIN
ON THE NORTH PLATTE RIVER NEAR LISCO...THE SOUTH PLATTE RIVER
FROM ROSCOE TO NORTH PLATTE...AND THE PLATTE RIVER NEAR BRADY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THUNDERSTORMS ARE POSSIBLE FRIDAY NIGHT ACROSS NORTH CENTRAL
NEBRASKA. THE RISK OF SEVERE WEATHER IS UNCERTAIN.

MINOR TO MODERATE FLOODING WILL CONTINUE ALONG THE NORTH PLATTE
RIVER FROM LEWELLEN TO NORTH PLATTE. ELEVATED RIVER LEVELS REMAIN
ON THE NORTH PLATTE RIVER NEAR LISCO...THE SOUTH PLATTE RIVER
FROM ROSCOE TO NORTH PLATTE...AND THE PLATTE RIVER NEAR BRADY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT.

&&

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

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
344 PM CDT TUE JUN 14 2016

NEZ005-142130-
EASTERN CHERRY NE-
344 PM CDT TUE JUN 14 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CHERRY COUNTY UNTIL
430 PM CDT...

AT 343 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 10
MILES WEST OF VALENTINE...MOVING NORTHEAST AT 25 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
VALENTINE AND HIGHWAY 97 CROSSING THE NIOBRARA RIVER.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 20 BETWEEN MILE MARKERS 188 AND 208.
 HIGHWAY 97 BETWEEN MILE MARKERS 125 AND 141.
 HIGHWAY 83 BETWEEN MILE MARKERS 203 AND 219.

LAT...LON 4276 10037 4273 10086 4276 10086 4277 10085
      4282 10086 4283 10087 4287 10088 4300 10040
      4299 10037
TIME...MOT...LOC 2043Z 246DEG 22KT 4282 10074

SNIVELY

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
435 PM CDT TUE JUN 14 2016

NEZ005-008-142215-
EASTERN CHERRY NE-BROWN NE-
435 PM CDT TUE JUN 14 2016

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL CHERRY AND WEST
CENTRAL BROWN COUNTIES UNTIL 515 PM CDT...

AT 434 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9
MILES NORTHEAST OF VALENTINE NATIONAL WILDLIFE REFUGE...OR 19 MILES
SOUTH OF VALENTINE...MOVING EAST AT 30 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
WOOD LAKE.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 20 BETWEEN MILE MARKERS 216 AND 229.
 HIGHWAY 83 BETWEEN MILE MARKERS 188 AND 199.

LAT...LON 4255 10060 4271 10058 4267 10010 4241 10011
TIME...MOT...LOC 2134Z 285DEG 24KT 4260 10045

SNIVELY

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
436 PM CDT TUE JUN 14 2016

NEZ006-142215-
KEYA PAHA NE-
436 PM CDT TUE JUN 14 2016

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL KEYA PAHA AND NORTHERN
ROCK COUNTIES UNTIL 515 PM CDT...

AT 436 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
SPRINGVIEW...MOVING EAST AT 20 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SPRINGVIEW...BURTON AND NETS PEAK.

THIS INCLUDES HIGHWAY 183 BETWEEN MILE MARKERS 211 AND 225.

LAT...LON 4276 9943 4279 9991 4300 9990 4300 9950
      4299 9941
TIME...MOT...LOC 2136Z 274DEG 19KT 4289 9980

SNIVELY

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
455 PM CDT TUE JUN 14 2016

NEZ005-008-142245-
EASTERN CHERRY NE-BROWN NE-
455 PM CDT TUE JUN 14 2016

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL CHERRY AND WEST
CENTRAL BROWN COUNTIES UNTIL 545 PM CDT...

AT 455 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 12
MILES WEST OF JOHNSTOWN...OR 22 MILES WEST OF AINSWORTH...MOVING EAST
AT 30 MPH.

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

LOCATIONS IMPACTED INCLUDE...
AINSWORTH...JOHNSTOWN AND WOOD LAKE.

THIS INCLUDES HIGHWAY 20 BETWEEN MILE MARKERS 221 AND 241.

LAT...LON 4248 10041 4265 10035 4260 9985 4234 9994
TIME...MOT...LOC 2155Z 284DEG 24KT 4255 10029

MASEK

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
515 PM CDT TUE JUN 14 2016

NEZ008-009-142300-
BROWN NE-ROCK NE-
515 PM CDT TUE JUN 14 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BROWN AND
NORTHWESTERN ROCK COUNTIES UNTIL 600 PM CDT...

AT 514 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
AINSWORTH...MOVING EAST AT 20 MPH.

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

LOCATIONS IMPACTED INCLUDE...
AINSWORTH...BASSETT...LONG PINE...ANTELOPE PEAK...KELLER PARK STATE
RECREATION AREA AND PINE GLEN STATE WILDLIFE REFUGE.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 183 BETWEEN MILE MARKERS 169 AND 204.
 HIGHWAY 20 BETWEEN MILE MARKERS 238 AND 265.

LAT...LON 4243 9998 4269 9994 4270 9941 4237 9942
TIME...MOT...LOC 2214Z 276DEG 16KT 4255 9985

MASEK

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
556 PM CDT TUE JUN 14 2016

NEZ010-028-029-142345-
HOLT NE-GARFIELD NE-WHEELER NE-
556 PM CDT TUE JUN 14 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN WHEELER...NORTHERN
GARFIELD AND SOUTHWESTERN HOLT COUNTIES UNTIL 645 PM CDT...

AT 556 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 10
MILES SOUTHWEST OF AMELIA...OR 23 MILES NORTH OF BURWELL...MOVING EAST
AT 20 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
CHAMBERS...CARSON LAKE AND SUNFISH LAKE.

LAT...LON 4202 9920 4219 9919 4224 9870 4197 9871
TIME...MOT...LOC 2256Z 270DEG 15KT 4211 9910

MASEK