Alert archive / Nebraska / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 310, NWS Omaha, NE

July 13, 2006Jefferson County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jul 13, 2006, 8:02 PM CDT for Jefferson County, Nebraska. It was in force for 28 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: Jul 13, 2006, 8:02 PM CDT (01:02 UTC)
Expired: Jul 13, 2006, 8:30 PM CDT
In force: 28 min
Issued by: NWS Omaha, NE
Area: Counties, with a storm outline in the text

County Jefferson County, NE

The radar

The Grand Island radar (KUEX), 107 km from the middle of the area, began a volume at 01:03 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
Jul 13, 8:05 PM CDT	HAIL 0.75	Daykin, 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
Jul 13, 3:32 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.0 hours before the alert went out and 135 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: 420 J/kg
Mixed-layer CIN: -291 J/kg
Mixed-layer LCL: 2013 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 216 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 11.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KOAX 140102
SVROAX
NEC095-140130-
/O.NEW.KOAX.SV.W.0310.060714T0102Z-060714T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
802 PM CDT THU JUL 13 2006

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JEFFERSON COUNTY IN SOUTHEAST NEBRASKA...

* UNTIL 830 PM CDT

* AT 758 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.  THIS
  STORM WAS LOCATED 17 MILES WEST OF PLYMOUTH...OR ABOUT 29 MILES
  WEST OF BEATRICE...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  JANSEN...HARBINE AND DAYKIN...

IF YOU ARE IN THE WARNED AREA...PREPARE FOR DAMAGING WINDS...LARGE
HAIL...HEAVY RAIN AND DANGEROUS LIGHTNING. GET INTO A REINFORCED
BUILDING. STAY AWAY FROM WINDOWS AND GLASS DOORS.

LAT...LON 4034 9736 4019 9737 4016 9692 4034 9692

$$

JMB

2 follow-up statements

000 
WWUS53 KOAX 140111
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
810 PM CDT THU JUL 13 2006

NEC095-140130-
/O.CON.KOAX.SV.W.0310.000000T0000Z-060714T0130Z/
JEFFERSON NE-
810 PM CDT THU JUL 13 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR JEFFERSON COUNTY...

AT 807 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.
 THIS STORM WAS LOCATED 11 MILES WEST OF PLYMOUTH...OR ABOUT 24 MILES
WEST OF BEATRICE...MOVING EAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HARBINE.

DIME SIZE HAIL WAS REPORTED BY STORM SPOTTERS IN DAYKIN AROUND 805 
PM.

LAT...LON 4033 9727 4022 9726 4016 9692 4034 9692

$$

JMB/BG

000 
WWUS53 KOAX 140126
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
826 PM CDT THU JUL 13 2006

NEC095-140136-
/O.EXP.KOAX.SV.W.0310.000000T0000Z-060714T0130Z/
JEFFERSON NE-
826 PM CDT THU JUL 13 2006

...THE SEVERE THUNDERSTORM WARNING FOR JEFFERSON COUNTY EXPIRES AT
830 PM CDT...

THE WARNING WILL BE ALLOWED TO EXPIRE AS SCHEDULED. STORMS HAVE
WEAKENED OR MOVED OUT OF THE WARNED AREA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT.

LAT...LON 4033 9727 4022 9726 4016 9692 4034 9692

$$

JMB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 7:24 PM CDT	Severe Thunderstorm Warning	OAX	Pawnee	36 min
Jul 13, 8:08 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster	37 min
Jul 13, 8:16 PM CDT	Severe Thunderstorm Warning	OAX	Butler	17 min
Jul 13, 8:23 PM CDT	Severe Thunderstorm Warning	OAX	Gage	37 min
Jul 13, 8:52 PM CDT	Severe Thunderstorm Warning	OAX	Gage	23 min
Jul 13, 9:15 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Johnson	30 min
Jul 13, 9:54 PM CDT	Severe Thunderstorm Warning	OAX	Jefferson	36 min
Jul 13, 10:24 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster	36 min
Jul 13, 10:32 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Jefferson	43 min
Jul 13, 10:52 PM CDT	Severe Thunderstorm Warning	OAX	Johnson, Otoe	23 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2006 Every severe thunderstorm warning in 2006

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.