Alert archive / Nebraska / Special Weather Statements in 2016

Special Weather Statement, NWS North Platte, NE

July 18, 2016Keith County, Nebraska

NWS North Platte, NE issued this special weather statement at Jul 18, 2016, 8:47 PM MDT for Keith County, Nebraska. It was in force for 58 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 18, 2016, 8:47 PM MDT (02:47 UTC)
Expired
Jul 18, 2016, 9:45 PM MDT
In force
58 min
Issued by
NWS North Platte, NE

County Keith County, NE

The radar

The North Platte radar (KLNX), 148 km from the middle of the area, began a volume at 02:51 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, 2.8 hours before the alert went out and 116 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 2016-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2929 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2016-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2929 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
1104 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.3
Supercell composite
5.8

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 18, 5:53 PM MDT, 2 hours 54 minutes earlier.

Area forecast discussion, Jul 18, 5:53 PM MDT, 2 hours 54 minutes before
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Hazardous weather outlook, Jul 18, 3:00 PM MDT, 5 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
400 PM CDT MON JUL 18 2016

NEZ004>010-022>029-035>038-056>059-069>071-094-192100-
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 MON JUL 18 2016 /300 PM MDT MON JUL 18 2016/

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

.DAY ONE...TONIGHT.

THUNDERSTORMS WILL MOVE EAST ACROSS MUCH OF WESTERN AND NORTH
CENTRAL NEBRASKA TONIGHT. SOME OF THE STORMS COULD BE SEVERE WITH
DAMAGING WINDS THE MAIN THREAT. HEAVY RAIN IS ALSO POSSIBLE.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

HOT TEMPERATURES ARE EXPECTED TUESDAY THROUGH FRIDAY. THE
COMBINATION OF HEAT AND HUMIDITY COULD LEAD TO AFTERNOON HEAT
INDEX READINGS OF 100 TO 105 DEGREES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT.

&&

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

TAYLOR

In the hours before

Special weather statement, Jul 18, 6:43 PM MDT, 2 hours 4 minutes before
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Special weather statement, Jul 18, 7:01 PM MDT, 1 hour 46 minutes before
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Special weather statement, Jul 18, 7:33 PM MDT, 1 hour 14 minutes before
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Special weather statement, Jul 18, 7:41 PM MDT, 1 hour 6 minutes before
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Special weather statement, Jul 18, 8:12 PM MDT, 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
812 PM MDT MON JUL 18 2016

NEZ022-035-056>058-190245-
GARDEN NE-DEUEL NE-KEITH NE-ARTHUR NE-PERKINS NE-
812 PM MDT MON JUL 18 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN ARTHUR...
SOUTHEASTERN GARDEN...DEUEL...WESTERN KEITH AND NORTHWESTERN PERKINS
COUNTIES UNTIL 845 PM MDT...

AT 811 PM MDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 16 MILES EAST OF CRESCENT
LAKE NWR TO NEAR CHAPPELL...AND MOVING SOUTHEAST AT 35 MPH.

NICKEL SIZE HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
CHAPPELL...OSHKOSH...BIG SPRINGS...ARTHUR...BRULE...LEWELLEN...
VENANGO...BARTON...LEMOYNE...
CLEAR CREEK STATE WILDLIFE MANAGEMENT AREA AND ASH HOLLOW STATE
HISTORICAL PARK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 61 BETWEEN MILE MARKERS 104 AND 128.
 HIGHWAY 92 BETWEEN MILE MARKERS 115 AND 135...AND BETWEEN MILE
MARKERS 165 AND 170.
 INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 83 AND 119.

LAT...LON 4168 10221 4161 10156 4073 10205 4101 10205
      4101 10257
TIME...MOT...LOC 0211Z 286DEG 29KT 4168 10210 4099 10252

ROBERG
Special weather statement, Jul 18, 8:47 PM MDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
847 PM MDT MON JUL 18 2016

NEZ035-056>058-190345-
DEUEL NE-KEITH NE-ARTHUR NE-PERKINS NE-
847 PM MDT MON JUL 18 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN ARTHUR...
SOUTHEASTERN GARDEN...EASTERN DEUEL...KEITH AND WESTERN PERKINS
COUNTIES UNTIL 945 PM MDT...

AT 845 PM MDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 13 MILES NORTHWEST OF
LEMOYNE TO BIG SPRINGS...AND MOVING SOUTHEAST AT 25 MPH.

HALF INCH HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
OGALLALA...GRANT...BIG SPRINGS...BRULE...KEYSTONE...KINGSLEY DAM...
ROSCOE...BARTON...LEMOYNE...BELMAR...
GOLDENEYE STATE WILDLIFE MANAGEMENT AREA...BROGANVILLE...
LAKE VIEW CAMPGROUND...OTTER CREEK CAMPGROUND...RUTHON...
WILD HORSE SPRING...EAGLE GULCH CAMPGROUND...MEGEATH AND MCKEAG.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 61 BETWEEN MILE MARKERS 68 AND 117.
 HIGHWAY 92 BETWEEN MILE MARKERS 121 AND 138.
 INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 100 AND 136.

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.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 4122 10208 4123 10205 4126 10206 4153 10186
      4137 10135 4074 10179 4091 10206 4101 10205
      4100 10220 4102 10223
TIME...MOT...LOC 0245Z 277DEG 23KT 4145 10193 4100 10223

ROBERG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 6:05 PM MDTSpecial Weather StatementLBFGarden40 min
Jul 18, 6:43 PM MDTSpecial Weather StatementLBFGarden47 min
Jul 18, 7:01 PM MDTSpecial Weather StatementLBFGarden44 min
Jul 18, 7:33 PM MDTSpecial Weather StatementLBFGarden42 min
Jul 18, 7:41 PM MDTSpecial Weather StatementLBFDeuel49 min
Jul 18, 8:12 PM MDTSpecial Weather StatementLBFArthur, Deuel33 min
Jul 18, 9:41 PM MDTSpecial Weather StatementLBFKeith, Lincoln49 min
Jul 18, 9:46 PM MDTSpecial Weather StatementLBFChase, Perkins44 min
Jul 18, 10:31 PM MDTSpecial Weather StatementLBFLincoln44 min
Jul 18, 11:18 PM MDTSevere Thunderstorm WarningLBFCuster57 min
Jul 19, 1:28 AM MDTSpecial Weather StatementLBFBoyd, Keya Paha32 min
Jul 19, 3:11 AM MDTHeat AdvisoryLBFArthur, Blaine, Boyd, Brown, Chase, Cherry and 20 more5 days
Jul 19, 11:11 AM MDTRiver Flood AdvisoryLBFLincoln36 hr
Jul 19, 2:15 PM MDTExcessive Heat WarningLBFBlaine, Boyd, Brown, Cherry, Custer, Frontier and 11 more4 days

Nearby

Special Weather Statements in Nebraska, 2016Every 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.