Alert archive / Nebraska / Frost Advisories in 2012

Frost Advisory 2, NWS North Platte, NE

May 8, 201219 counties in Nebraska

NWS North Platte, NE issued this frost advisory at May 8, 2012, 1:38 PM MDT for 19 counties in Nebraska. It took effect at May 9, 2012, 4:00 AM MDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 8, 2012, 1:38 PM MDT (19:38 UTC)
In effect from
May 9, 2012, 4:00 AM MDT
Expired
May 9, 2012, 7:00 AM MDT
In force
3 hr
Issued by
NWS North Platte, NE

Counties Arthur County, NE, Blaine County, NE, Brown County, NE, Chase County, NE, Cherry County, NE, Custer County, NE, Deuel County, NE, Frontier County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Sheridan County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 69 km from the middle of the area, began a volume at 19:38 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, 7.6 hours before the alert went out and 62 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 2012-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2012-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2239 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

300 
WWUS73 KLBF 081938
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
238 PM CDT TUE MAY 8 2012

...FROST OVER WESTERN NEBRASKA WEDNESDAY MORNING...

.COOL CANADIAN HIGH PRESSURE WILL SETTLE OVER WESTERN AND NORTH
CENTRAL NEBRASKA...WITH LIGHT WINDS AND CLEAR SKIES. TEMPERATURES
WILL DROP OFF OVER NIGHT WITH FROST ONCE AGAIN POSSIBLE OVER MUCH
OF WESTERN NEBRASKA BY WEDNESDAY MORNING.

NEZ004-005-008-022>026-035>038-057-059-094-091300-
/O.NEW.KLBF.FR.Y.0002.120509T1000Z-120509T1300Z/
SHERIDAN-EASTERN CHERRY-BROWN-GARDEN-GRANT-HOOKER-THOMAS-BLAINE-
ARTHUR-MCPHERSON-LOGAN-CUSTER-KEITH-LINCOLN-WESTERN CHERRY-
INCLUDING THE CITIES OF...GORDON...RUSHVILLE...VALENTINE...
AINSWORTH...OSHKOSH...HYANNIS...MULLEN...THEDFORD...DUNNING...
ARTHUR...TRYON...STAPLETON...BROKEN BOW...OGALLALA...
NORTH PLATTE...CODY...MERRIMAN...KILGORE
238 PM CDT TUE MAY 8 2012 /138 PM MDT TUE MAY 8 2012/

...FROST ADVISORY IN EFFECT FROM 5 AM CDT /4 AM MDT/ TO 8 AM CDT
/7 AM MDT/ WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 5 AM CDT /4 AM MDT/ TO 8 AM
CDT /7 AM MDT/ WEDNESDAY. 



* TEMPERATURE:OVERNIGHT LOWS OF 32 TO 36 DEGREES ARE
  EXPECTED.

* IMPACTS:TENDER VEGETATION SHOULD BE EITHER BROUGHT INSIDE OR
  COVERED WITH BLANKETS TO PROTECT IT FROM THE COLD TEMPERATURES.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

POWER
3 follow-up statements
306 
WWUS73 KLBF 082054
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
354 PM CDT TUE MAY 8 2012

...FROST OVER WESTERN NEBRASKA WEDNESDAY MORNING...

.COOL CANADIAN HIGH PRESSURE WILL SETTLE OVER WESTERN AND NORTH
CENTRAL NEBRASKA...WITH LIGHT WINDS AND CLEAR SKIES. TEMPERATURES
WILL DROP OFF OVER NIGHT WITH FROST ONCE AGAIN POSSIBLE OVER MUCH
OF WESTERN NEBRASKA BY WEDNESDAY MORNING.

NEZ004-005-008-022>026-035>038-057-059-094-090500-
/O.CON.KLBF.FR.Y.0002.120509T1000Z-120509T1300Z/
SHERIDAN-EASTERN CHERRY-BROWN-GARDEN-GRANT-HOOKER-THOMAS-BLAINE-
ARTHUR-MCPHERSON-LOGAN-CUSTER-KEITH-LINCOLN-WESTERN CHERRY-
INCLUDING THE CITIES OF...GORDON...RUSHVILLE...VALENTINE...
AINSWORTH...OSHKOSH...HYANNIS...MULLEN...THEDFORD...DUNNING...
ARTHUR...TRYON...STAPLETON...BROKEN BOW...OGALLALA...
NORTH PLATTE...CODY...MERRIMAN...KILGORE
354 PM CDT TUE MAY 8 2012 /254 PM MDT TUE MAY 8 2012/

...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM CDT /4 AM MDT/ TO
8 AM CDT /7 AM MDT/ WEDNESDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM 5 AM CDT /4 AM MDT/ TO
8 AM CDT /7 AM MDT/ WEDNESDAY. 

* TEMPERATURE: OVERNIGHT LOWS OF 32 TO 36 DEGREES ARE EXPECTED. 

* IMPACTS: TENDER VEGETATION SHOULD BE EITHER BROUGHT INSIDE OR 
  COVERED WITH BLANKETS TO PROTECT IT FROM THE COLD 
  TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
870 
WWUS73 KLBF 090134
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
834 PM CDT TUE MAY 8 2012

...FROST LIKELY OVER WESTERN NEBRASKA WEDNESDAY MORNING...

.CANADIAN HIGH PRESSURE WILL SETTLE OVER WESTERN AND NORTH CENTRAL
NEBRASKA...WITH LIGHT WINDS AND CLEAR SKIES. TEMPERATURES WILL
DROP OFF OVER NIGHT WITH FROST ONCE AGAIN POSSIBLE OVER MUCH OF
WESTERN NEBRASKA BY WEDNESDAY MORNING.

NEZ056-058-069>071-090945-
/O.EXA.KLBF.FR.Y.0002.120509T1000Z-120509T1300Z/
DEUEL-PERKINS-CHASE-HAYES-FRONTIER-
INCLUDING THE CITIES OF...CHAPPELL...BIG SPRINGS...GRANT...
IMPERIAL...HAYES CENTER...CURTIS...EUSTIS
834 PM CDT TUE MAY 8 2012 /734 PM MDT TUE MAY 8 2012/

...FROST ADVISORY IN EFFECT FROM 5 AM CDT /4 AM MDT/ TO 8 AM CDT
/7 AM MDT/ WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 5 AM CDT /4 AM MDT/ TO 8 AM
CDT /7 AM MDT/ WEDNESDAY. 

* TEMPERATURE: OVERNIGHT LOWS OF 30 TO 35 DEGREES ARE EXPECTED.

* IMPACTS: TENDER VEGETATION SHOULD BE EITHER BROUGHT INSIDE OR 
  COVERED WITH BLANKETS TO PROTECT IT FROM THE COLD 
  TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

NEZ004-005-008-022>026-035>038-057-059-094-090945-
/O.CON.KLBF.FR.Y.0002.120509T1000Z-120509T1300Z/
SHERIDAN-EASTERN CHERRY-BROWN-GARDEN-GRANT-HOOKER-THOMAS-BLAINE-
ARTHUR-MCPHERSON-LOGAN-CUSTER-KEITH-LINCOLN-WESTERN CHERRY-
INCLUDING THE CITIES OF...GORDON...RUSHVILLE...VALENTINE...
AINSWORTH...OSHKOSH...HYANNIS...MULLEN...THEDFORD...DUNNING...
ARTHUR...TRYON...STAPLETON...BROKEN BOW...OGALLALA...
NORTH PLATTE...CODY...MERRIMAN...KILGORE
834 PM CDT TUE MAY 8 2012 /734 PM MDT TUE MAY 8 2012/

...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM CDT /4 AM MDT/ TO
8 AM CDT /7 AM MDT/ WEDNESDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM 5 AM CDT /4 AM MDT/ TO
8 AM CDT /7 AM MDT/ WEDNESDAY. 

* TEMPERATURE: OVERNIGHT LOWS OF 30 TO 35 DEGREES ARE EXPECTED.

* IMPACTS: TENDER VEGETATION SHOULD BE EITHER BROUGHT INSIDE OR 
  COVERED WITH BLANKETS TO PROTECT IT FROM THE COLD 
  TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
SPRINGER
043 
WWUS73 KLBF 091255
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
755 AM CDT WED MAY 9 2012

NEZ004-005-008-022>026-035>038-056>059-069>071-094-091400-
/O.EXP.KLBF.FR.Y.0002.000000T0000Z-120509T1300Z/
SHERIDAN-EASTERN CHERRY-BROWN-GARDEN-GRANT-HOOKER-THOMAS-BLAINE-
ARTHUR-MCPHERSON-LOGAN-CUSTER-DEUEL-KEITH-PERKINS-LINCOLN-CHASE-
HAYES-FRONTIER-WESTERN CHERRY-
INCLUDING THE CITIES OF...GORDON...RUSHVILLE...VALENTINE...
AINSWORTH...OSHKOSH...HYANNIS...MULLEN...THEDFORD...DUNNING...
ARTHUR...TRYON...STAPLETON...BROKEN BOW...CHAPPELL...
BIG SPRINGS...OGALLALA...GRANT...NORTH PLATTE...IMPERIAL...
HAYES CENTER...CURTIS...EUSTIS...CODY...MERRIMAN...KILGORE
755 AM CDT WED MAY 9 2012 /655 AM MDT WED MAY 9 2012/

...FROST ADVISORY WILL EXPIRE AT 8 AM CDT /7 AM MDT/ THIS
MORNING...

THE FROST ADVISORY WILL EXPIRE AT 8 AM CDT /7 AM MDT/ THIS
MORNING. 

TEMPERATURES HAVE RISEN INTO THE UPPER 30S TO AROUND 40. THEREFORE
THE FROST ADVISORY HAS BEEN ALLOWED TO EXPIRE.

$$

KAR

Nearby

Frost Advisories in Nebraska, 2012Every frost advisory in 2012

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.