Alert archive / Nebraska / Tornado Warnings in 2010

Tornado Warning 73, NWS North Platte, NE

August 3, 2010Frontier County, Nebraska

NWS North Platte, NE issued this tornado warning at Aug 3, 2010, 9:09 PM CDT for Frontier County, Nebraska. It was in force for 25 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 3, 2010, 9:09 PM CDT (02:09 UTC)
Expired
Aug 3, 2010, 9:34 PM CDT
In force
25 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon

County Frontier County, NE

The radar

The Grand Island radar (KUEX), 141 km from the middle of the area, began a volume at 02:11 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.

What was reported inside it

TimeReportWhereRemark
Aug 3, 9:22 PM CDTHAIL 1.75Eustis, NE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.2 hours before the alert went out and 71 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 2010-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2208 joules per kilogram.LCLEL10008507005003002001001 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 2010-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
2208 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1228 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.7
Supercell composite
5.5

Open this sounding in Storm Lab

The text

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

699 
WFUS53 KLBF 040209
TORLBF
NEC063-040245-
/O.NEW.KLBF.TO.W.0073.100804T0209Z-100804T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
909 PM CDT TUE AUG 3 2010

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN FRONTIER COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 945 PM CDT

* AT 906 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD
  NEAR EUSTIS...OR 19 MILES SOUTHWEST OF LEXINGTON. A TORNADO MAY
  DEVELOP AT ANY TIME. DOPPLER RADAR SHOWED THIS DANGEROUS STORM
  MOVING SOUTHEAST AT 15 MPH.

  IN ADDITION...AT 907 PM CDT BASEBALL SIZE HAIL WAS REPORTED 4      
  MILES WEST OF EUSTIS. 

* PEOPLE IN EUSTIS AND THE SURROUNDING AREA SHOULD TAKE SHELTER NOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 4067 10015 4070 10013 4070 9998 4069 9997
      4056 9997 4056 9999
TIME...MOT...LOC 0208Z 313DEG 15KT 4066 10006

$$

TAYLOR
2 follow-up statements
250 
WWUS53 KLBF 040215
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
915 PM CDT TUE AUG 3 2010

NEC063-040245-
/O.CON.KLBF.TO.W.0073.000000T0000Z-100804T0245Z/
FRONTIER NE-
915 PM CDT TUE AUG 3 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN FRONTIER
COUNTY UNTIL 945 PM CDT...

AT 911 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR EUSTIS...OR 18 MILES SOUTHWEST OF LEXINGTON...
MOVING SOUTHEAST AT 15 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN 
FRONTIER COUNTY...IN AND AROUND THE EUSTIS AREA. BASEBALL SIZE HAIL 
IS ALSO EXPECTED WITH THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 4067 10015 4070 10013 4070 9998 4069 9997
      4056 9997 4056 9999
TIME...MOT...LOC 0215Z 313DEG 15KT 4065 10003

$$

TAYLOR
578 
WWUS53 KLBF 040234
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
934 PM CDT TUE AUG 3 2010

NEC063-040244-
/O.CAN.KLBF.TO.W.0073.000000T0000Z-100804T0245Z/
FRONTIER NE-
934 PM CDT TUE AUG 3 2010

...THE TORNADO WARNING FOR NORTHEASTERN FRONTIER COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4067 10015 4070 10013 4070 9998 4069 9997
      4056 9997 4056 9999
TIME...MOT...LOC 0234Z 313DEG 15KT 4059 9996

$$

TAYLOR

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 8:10 PM CDTSevere Thunderstorm WarningLBFLincoln50 min
Aug 3, 9:00 PM CDTSevere Thunderstorm WarningLBFFrontier45 min
Aug 3, 9:54 PM CDTSevere Thunderstorm WarningLBFChase, Hayes, Lincoln, Perkins51 min
Aug 3, 10:31 PM CDTSevere Thunderstorm WarningLBFHayes44 min

Nearby

Tornado Warnings in Nebraska, 2010Every tornado warning in 2010Tornadoes in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.