Alert archive / Nebraska / Special Weather Statements in 2015

Special Weather Statement, NWS North Platte, NE

August 9, 2015Logan County, Nebraska

NWS North Platte, NE issued this special weather statement at Aug 9, 2015, 6:50 PM CDT for Logan 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 9, 2015, 6:50 PM CDT (23:50 UTC)
Expired
Aug 9, 2015, 7:30 PM CDT
In force
40 min
Issued by
NWS North Platte, NE

County Logan County, NE

The radar

The North Platte radar (KLNX), 41 km from the middle of the area, began a volume at 23:51 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 12:00Z, 11.8 hours before the alert went out and 76 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 12:00Z on 2015-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 923 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 12:00Z on 2015-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.19395878Sfc1 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
923 J/kg
Mixed-layer CIN
-203 J/kg
Mixed-layer LCL
1356 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 9, 6:26 PM CDT, 24 minutes earlier.

Area forecast discussion, Aug 9, 6:26 PM CDT, 24 minutes before
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Hazardous weather outlook, Aug 9, 3:56 PM CDT, 2 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
356 PM CDT SUN AUG 9 2015

NEZ004>010-022>029-035>038-056>059-069>071-094-102100-
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-
356 PM CDT SUN AUG 9 2015 /256 PM MDT SUN AUG 9 2015/

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

.DAY ONE...TONIGHT.

SCATTERED THUNDERSTORMS WILL CONTINUE THIS EVENING ACROSS NORTH
CENTRAL NEBRASKA...WITH SOME OF THE STORMS POSSIBLY BECOMING
SEVERE AND PRODUCE LARGE HAIL AND DAMAGING WINDS.

OTHER STORMS ARE EXPECTED TO DEVELOP ACROSS THE NORTHERN NEBRASKA
PANHANDLE INTO WESTERN NEBRASKA. THESE STORMS WILL TRACK
SOUTHEAST INTO CENTRAL AND POSSIBLY SOUTHWEST NEBRASKA THIS
EVENING. A SEVERE STORM OR TWO WILL BE POSSIBLE WITH THIS CLUSTER
OF STORMS. LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN THREATS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THUNDERSTORMS ARE POSSIBLE FRIDAY AND SATURDAY AS AN UPPER LEVEL
RIDGE BEGINS TO BREAK DOWN. SEVERE STORMS ARE NOT EXPECTED AT
THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED AFTER 3 PM CDT THIS
AFTERNOON...ESPECIALLY ACROSS NORTH CENTRAL NEBRASKA.

&&

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

TAYLOR

In the hours before

Local storm report, Aug 9, 5:30 PM CDT, 1 hour 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
530 PM CDT SUN AUG 09 2015

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

0518 PM     HAIL             11 NW BARTLETT          42.00N 98.70W
08/09/2015  E1.00 INCH       WHEELER            NE   PUBLIC

&&

SBAKER
Special weather statement, Aug 9, 5:31 PM CDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
531 PM CDT SUN AUG 9 2015

NEZ010-092315-
HOLT NE-
531 PM CDT SUN AUG 9 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HOLT COUNTY UNTIL
615 PM CDT...

AT 531 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
CHAMBERS...OR 21 MILES SOUTH OF O'NEILL...MOVING NORTHEAST AT 30 MPH.

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

LOCATIONS IMPACTED INCLUDE...
KNIEVELS CORNER...GOOSE LAKE STATE WILDLIFE MANAGEMENT AREA...EWING
AND CHAMBERS.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 20 BETWEEN MILE MARKERS 326 AND 328.
 HIGHWAY 281 BETWEEN MILE MARKERS  AND .

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTH CENTRAL NEBRASKA.

LAT...LON 4210 9874 4221 9874 4235 9831 4210 9830
TIME...MOT...LOC 2231Z 245DEG 24KT 4216 9865

CDC
Special weather statement, Aug 9, 6:02 PM CDT, 48 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
602 PM CDT SUN AUG 9 2015

NEZ010-028-029-092300-
HOLT NE-GARFIELD NE-WHEELER NE-
602 PM CDT SUN AUG 9 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HOLT...GARFIELD AND
WHEELER COUNTIES UNTIL 600 PM CDT...

AT 600 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 11 MILES NORTHEAST OF
CALAMUS RESERVOIR STATE RECREATION AREA TO 8 MILES EAST OF
BARTLETT...AND MOVING SOUTHEAST AT 25 MPH. OTHER STRONG STORM WERE
15 MILES NORTH OF BURWELL AND 3 MILES NORTH OF BARTLETT...MOVING
EAST AT 20 MPH.

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

LOCATIONS IMPACTED INCLUDE...
GABLES...SUNFISH LAKE...ERICSON...DEVERRE...EWING...FOUR CORNERS...
KNIEVELS CORNER...GOOSE LAKE STATE WILDLIFE MANAGEMENT AREA...
CUMMINSVILLE...BARTLETT...BUFFALO FLATS...PIBEL LAKE STATE RECREATION
AREA AND CHAMBERS.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 20 BETWEEN MILE MARKERS 320 AND 328.

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.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTH CENTRAL NEBRASKA.

LAT...LON 4243 9830 4174 9831 4182 9920 4197 9920
TIME...MOT...LOC 2300Z 294DEG 21KT 4196 9908 4192 9840

CDC
Special weather statement, Aug 9, 6:06 PM CDT, 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
606 PM CDT SUN AUG 9 2015

NEZ010-028-029-100000-
HOLT NE-GARFIELD NE-WHEELER NE-
606 PM CDT SUN AUG 9 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HOLT...GARFIELD AND
WHEELER COUNTIES UNTIL 700 PM CDT...

AT 606 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 11 MILES NORTHEAST OF
CALAMUS RESERVOIR STATE RECREATION AREA TO 8 MILES EAST OF
BARTLETT...AND MOVING SOUTHEAST AT 25 MPH. OTHER STRONG STORMS WERE
15 MILES NORTH OF BURWELL AND 3 MILES NORTH OF BARTLETT...MOVING
EAST AT 20 MPH.

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

LOCATIONS IMPACTED INCLUDE...
GABLES...SUNFISH LAKE...ERICSON...DEVERRE...EWING...FOUR CORNERS...
KNIEVELS CORNER...GOOSE LAKE STATE WILDLIFE MANAGEMENT AREA...
CUMMINSVILLE...BARTLETT...BUFFALO FLATS...PIBEL LAKE STATE RECREATION
AREA AND CHAMBERS.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 20 BETWEEN MILE MARKERS 320 AND 328.

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.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTH CENTRAL NEBRASKA.

LAT...LON 4243 9830 4174 9831 4182 9920 4197 9920
TIME...MOT...LOC 2306Z 294DEG 21KT 4196 9908 4192 9840

CDC
Special weather statement, Aug 9, 6:12 PM CDT, 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
612 PM CDT SUN AUG 9 2015

NEZ005-024>026-037-100000-
THOMAS NE-BLAINE NE-LOGAN NE-HOOKER NE-EASTERN CHERRY NE-
612 PM CDT SUN AUG 9 2015

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN HOOKER...SOUTHEASTERN
CHERRY...THOMAS...NORTH CENTRAL LOGAN AND NORTHWESTERN BLAINE
COUNTIES UNTIL 700 PM CDT/600 PM MDT/...

AT 611 PM CDT /511 PM MDT/...DOPPLER RADAR WAS TRACKING A STRONG
THUNDERSTORM NEAR THEDFORD...MOVING SOUTHEAST AT 30 MPH.

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

LOCATIONS IMPACTED INCLUDE...
NATWICK...PURDUM...HIGHWAY 83 CROSSING THE DISMAL RIVER...NORWAY...
THEDFORD AND HALSEY.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 2 BETWEEN MILE MARKERS 198 AND 227.
 HIGHWAY 83 BETWEEN MILE MARKERS 128 AND 157.

LAT...LON 4194 10087 4212 10072 4207 10015 4166 10046
TIME...MOT...LOC 2311Z 301DEG 26KT 4197 10066

SNIVELY/BUTTLER
Special weather statement, Aug 9, 6:50 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
650 PM CDT SUN AUG 9 2015

NEZ025-026-037-038-100030-
THOMAS NE-BLAINE NE-LOGAN NE-CUSTER NE-
650 PM CDT SUN AUG 9 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CUSTER...
SOUTHEASTERN THOMAS...NORTHEASTERN LOGAN AND SOUTHWESTERN BLAINE
COUNTIES UNTIL 730 PM CDT...

AT 649 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 10
MILES SOUTHWEST OF HALSEY...OR 15 MILES SOUTHEAST OF THEDFORD...
MOVING SOUTHEAST AT 35 MPH.

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

LOCATIONS IMPACTED INCLUDE...
DUNNING...LINSCOTT AND HIGHWAY 83 CROSSING THE DISMAL RIVER.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 2 BETWEEN MILE MARKERS 237 AND 251.
 HIGHWAY 83 BETWEEN MILE MARKERS 130 AND 135.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM. DO NOT DRIVE
YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4176 9987 4147 10018 4177 10057 4193 10041
TIME...MOT...LOC 2349Z 304DEG 29KT 4178 10041

SNIVELY/COLE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 2:27 PM CDTSpecial Weather StatementLBFHolt48 min
Aug 9, 2:34 PM CDTSevere Thunderstorm WarningLBFHolt41 min
Aug 9, 4:50 PM CDTSpecial Weather StatementLBFGarfield40 min
Aug 9, 5:00 PM CDTSpecial Weather StatementLBFHooker45 min
Aug 9, 5:10 PM CDTSevere Thunderstorm WarningLBFCherry, Hooker, Thomas65 min
Aug 9, 5:15 PM CDTSevere Thunderstorm WarningLBFWheeler45 min
Aug 9, 5:31 PM CDTSpecial Weather StatementLBFWheeler44 min
Aug 9, 6:02 PM CDTSpecial Weather StatementLBFGarfield, Wheeler
Aug 9, 6:06 PM CDTSpecial Weather StatementLBFGarfield, Wheeler54 min
Aug 9, 6:12 PM CDTSpecial Weather StatementLBFThomas48 min
Aug 9, 6:56 PM CDTSevere Thunderstorm WarningLBFWheeler34 min
Aug 9, 6:56 PM CDTSevere Thunderstorm WarningLBFWheeler34 min

Nearby

Special Weather Statements in Nebraska, 2015Every special weather statement in 2015

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.