Alert archive / Nebraska / Tornado Warnings in 2009

Tornado Warning 2, NWS North Platte, NE

March 23, 2009Boyd County, Holt County, Nebraska

NWS North Platte, NE issued this tornado warning at Mar 23, 2009, 3:26 PM CDT for Boyd County, Holt County, Nebraska. It was in force for 34 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: Mar 23, 2009, 3:26 PM CDT (20:26 UTC)
Expired: Mar 23, 2009, 4:00 PM CDT
In force: 34 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

Counties Boyd County, NE, Holt County, NE

The radar

The Sioux Falls radar (KFSD), 180 km from the middle of the area, began a volume at 20:26 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

Time	Report	Where	Remark
Mar 23, 4:00 PM CDT	HAIL 0.88	Bristow, NE

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 23, 12:16 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 8.4 hours before the alert went out and 235 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: 7 J/kg
Mixed-layer CIN: -305 J/kg
Mixed-layer LCL: 742 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 242 m²/s²
0-3 km storm-relative helicity: 291 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 232026
TORLBF
NEC015-089-232100-
/O.NEW.KLBF.TO.W.0002.090323T2026Z-090323T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
326 PM CDT MON MAR 23 2009

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL BOYD COUNTY IN NORTH CENTRAL NEBRASKA...
  THIS INCLUDES THE CITY OF SPENCER...
  NORTH CENTRAL HOLT COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 400 PM CDT

* AT 322 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO 8 MILES   
  SOUTH OF MIDWAY...8 MILES NORTH OF ONEILL...MOVING NORTH AT 30     
  MPH.

* THE TORNADO WILL BE NEAR...
  MIDWAY BY 335 PM CDT...
  SPENCER DAM BY 350 PM CDT...
  BRISTOW BY 355 PM CDT...
  SPENCER...8 MILES SOUTHWEST OF GROSS...9 MILES EAST OF BUTTE AND 9
  MILES SOUTHEAST OF ANOKA BY 400 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4260 9850 4256 9874 4299 9888 4300 9880
      4300 9858
TIME...MOT...LOC 2025Z 170DEG 26KT 4262 9862

$$

SPRINGER

2 follow-up statements

000 
WWUS53 KLBF 232040
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
340 PM CDT MON MAR 23 2009

NEC015-089-232100-
/O.CON.KLBF.TO.W.0002.000000T0000Z-090323T2100Z/
HOLT NE-BOYD NE-
340 PM CDT MON MAR 23 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR CENTRAL
BOYD AND NORTH CENTRAL HOLT COUNTIES...

AT 336 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS TORNADO WAS LOCATED
NEAR SPENCER DAM...OR 9 MILES SOUTH OF SPENCER...MOVING NORTH AT 35
MPH.

THE TORNADO WILL BE NEAR...
  BRISTOW BY 345 PM CDT...
  SPENCER BY 350 PM CDT...
  6 MILES WEST OF GROSS AND 8 MILES EAST OF BUTTE BY 355 PM CDT...
  HIGHWAY 281 MILE MARKER 220 AND 7 MILES EAST OF ANOKA BY 400 PM
  CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
QUARTER-SIZED HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4260 9850 4256 9874 4299 9888 4300 9880
      4300 9858
TIME...MOT...LOC 2039Z 170DEG 30KT 4278 9866

$$

SPRINGER

000 
WWUS53 KLBF 232056
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
356 PM CDT MON MAR 23 2009

NEC015-089-232106-
/O.EXP.KLBF.TO.W.0002.000000T0000Z-090323T2100Z/
HOLT NE-BOYD NE-
356 PM CDT MON MAR 23 2009

...THE TORNADO WARNING FOR CENTRAL BOYD AND NORTH CENTRAL HOLT
COUNTIES WILL EXPIRE AT 400 PM CDT...

LAT...LON 4260 9850 4256 9874 4299 9888 4300 9880
      4300 9858
TIME...MOT...LOC 2056Z 170DEG 30KT 4292 9869

$$

SPRINGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 23, 3:30 AM CDT	Wind Advisory	LBF	Chase, Custer, Frontier, Hayes, Lincoln, Loup and 1 more	21 hr
Mar 23, 1:37 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	38 min
Mar 23, 1:53 PM CDT	Tornado Warning	LBF	Cherry	39 min
Mar 23, 2:02 PM CDT	Severe Thunderstorm Warning	LBF	Holt	43 min
Mar 23, 2:21 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	39 min
Mar 23, 3:03 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	57 min
Mar 23, 3:21 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha, Rock	39 min
Mar 23, 3:58 PM CDT	Severe Thunderstorm Warning	LBF	Boyd	17 min

Nearby

Tornado Warnings in Nebraska, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.