Alert archive / Nebraska / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 113, NWS North Platte, NE

June 17, 2009Cherry County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 17, 2009, 5:41 PM MDT for Cherry County, Nebraska. It was in force for 64 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: Jun 17, 2009, 5:41 PM MDT (23:41 UTC)
Expired: Jun 17, 2009, 6:45 PM MDT
In force: 64 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

County Cherry County, NE

The radar

The North Platte radar (KLNX), 107 km from the middle of the area, began a volume at 23:43 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 17, 5:35 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.7 hours before the alert went out and 193 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: 497 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 1485 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 176 m²/s²
0-3 km storm-relative helicity: 287 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLBF 172341
SVRLBF
NEC031-180045-
/O.NEW.KLBF.SV.W.0113.090617T2341Z-090618T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
541 PM MDT WED JUN 17 2009

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL CHERRY COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 645 PM MDT/745 PM CDT/

* AT 539 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  MEDICINE LAKE...OR 37 MILES EAST OF GORDON...AND MOVING NORTHEAST
  AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NENZEL AND 7 MILES WEST OF KILGORE BY 645 PM MDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT MDT
THURSDAY MORNING/100 AM CDT THURSDAY MORNING/ FOR NORTH CENTRAL
NEBRASKA.

&&

LAT...LON 4281 10061 4243 10161 4283 10175 4300 10131
      4300 10107
TIME...MOT...LOC 2341Z 242DEG 17KT 4277 10146

$$

SPRINGER

2 follow-up statements

000 
WWUS53 KLBF 180012
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
612 PM MDT WED JUN 17 2009

NEC031-180045-
/O.CON.KLBF.SV.W.0113.000000T0000Z-090618T0045Z/
CHERRY NE-
612 PM MDT WED JUN 17 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM
MDT/745 PM CDT/ FOR NORTH CENTRAL CHERRY COUNTY...

AT 612 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED 6 MILES WEST OF MEDICINE LAKE...OR 34 MILES EAST OF GORDON...
MOVING NORTHEAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MEDICINE LAKE BY 620 PM MDT...
  ELI BY 640 PM MDT...
  CODY BY 645 PM MDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT WEDNESDAY
EVENING/1100 PM CDT WEDNESDAY EVENING/ FOR SOUTHWESTERN NEBRASKA. A
SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL MIDNIGHT MDT
THURSDAY MORNING/100 AM CDT THURSDAY MORNING/ FOR NORTH CENTRAL
NEBRASKA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL
100 AM MDT THURSDAY MORNING/200 AM CDT THURSDAY MORNING/ FOR THE
PANHANDLE AND NORTHWESTERN NEBRASKA.

&&

LAT...LON 4281 10061 4243 10161 4283 10175 4300 10131
      4300 10107
TIME...MOT...LOC 0012Z 218DEG 26KT 4274 10154

$$

SPRINGER

000 
WWUS53 KLBF 180045
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
645 PM MDT WED JUN 17 2009

NEC031-180055-
/O.EXP.KLBF.SV.W.0113.000000T0000Z-090618T0045Z/
CHERRY NE-
645 PM MDT WED JUN 17 2009

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CHERRY COUNTY
HAS EXPIRED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT MDT
THURSDAY MORNING/100 AM CDT THURSDAY MORNING/ FOR NORTH CENTRAL
NEBRASKA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL
100 AM MDT THURSDAY MORNING/200 AM CDT THURSDAY MORNING/ FOR THE
PANHANDLE AND NORTHWESTERN NEBRASKA.

LAT...LON 4281 10061 4243 10161 4283 10175 4300 10131
      4300 10107
TIME...MOT...LOC 0045Z 218DEG 26KT 4293 10134

$$

SPRINGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 4:37 PM MDT	Tornado Warning	LBF	Boyd, Holt, Keya Paha	38 min
Jun 17, 4:50 PM MDT	Severe Thunderstorm Warning	LBF	Garden, Sheridan	55 min
Jun 17, 5:15 PM MDT	Tornado Warning	LBF	Boyd, Holt, Keya Paha	30 min
Jun 17, 5:32 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	58 min
Jun 17, 5:36 PM MDT	Severe Thunderstorm Warning	LBF	Custer	54 min
Jun 17, 5:47 PM MDT	Tornado Warning	LBF	Boyd, Holt	43 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2009 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.