Alert archive / Nebraska / Frost Advisories in 2011
Frost Advisory 2, NWS North Platte, NE
NWS North Platte, NE issued this frost advisory at Sep 29, 2011, 11:47 AM CDT for 11 counties in Nebraska. It took effect at Sep 30, 2011, 1:00 AM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Sep 29, 2011, 11:47 AM CDT (16:47 UTC)
- In effect from
- Sep 30, 2011, 1:00 AM CDT
- Expired
- Sep 30, 2011, 9:03 AM CDT
- In force
- 8 hr
- Issued by
- NWS North Platte, NE
Counties Brown County, NE, Cherry County, NE, Custer County, NE, Frontier County, NE, Keith County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, Rock County, NE, Sheridan County, NE, Thomas County, NE
The radar
The North Platte radar (KLNX), 11 km from the middle of the area, began a volume at 16:46 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, 4.8 hours before the alert went out and 81 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2311 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -189 m²/s²
- 0-3 km storm-relative helicity
- 235 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
444 WWUS73 KLBF 291647 NPWLBF URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 1147 AM CDT THU SEP 29 2011 ...SIGNIFICANT FROST EVENT TONIGHT... .STRONG HIGH PRESSURE WILL BUILD ACROSS NEBRASKA TONIGHT. LIGHT WINDS...VERY DRY AIR AND CLEAR SKIES WILL PROMOTE THE FORMATION OF WIDESPREAD FROST IN VALLEYS AND LOW LYING AREAS. NEZ004>006-008-009-025-037-038-057-059-071-300900- /O.NEW.KLBF.FR.Y.0002.110930T0600Z-110930T1400Z/ SHERIDAN-EASTERN CHERRY-KEYA PAHA-BROWN-ROCK-THOMAS-LOGAN-CUSTER- KEITH-LINCOLN-FRONTIER- INCLUDING THE CITIES OF...GORDON...RUSHVILLE...VALENTINE... SPRINGVIEW...AINSWORTH...BASSETT...THEDFORD...STAPLETON... BROKEN BOW...OGALLALA...NORTH PLATTE...CURTIS...EUSTIS 1147 AM CDT THU SEP 29 2011 /1047 AM MDT THU SEP 29 2011/ ...FROST ADVISORY IN EFFECT FROM 1 AM CDT /MIDNIGHT MDT/ TO 9 AM CDT /8 AM MDT/ FRIDAY... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 1 AM CDT /MIDNIGHT MDT/ TO 9 AM CDT /8 AM MDT/ FRIDAY. * TEMPERATURE: BELOW FREEZING TEMPERATURES WILL DEVELOP IN VALLEYS AND LOW LYING AREAS AFTER MIDNIGHT. TEMPERATURES WILL WARM ABOVE FREEZING AN HOUR OR TWO AFTER SUNRISE. * IMPACTS: SUBFREEZING TEMPERATURES ARE LIKELY IN URBAN AREAS WHICH HAVE ESCAPED LIGHT FROST CONDITIONS THUS FAR THIS FALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ CDC
1 follow-up statement
061 WWUS73 KLBF 301403 NPWLBF URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 903 AM CDT FRI SEP 30 2011 ...WARMING TEMPERATURES THROUGH THE DAY... .TEMPERATURES ACROSS THE AREA HAVE RISEN ABOVE THE FREEZING POINT THIS MORNING...AND WILL CONTINUE TO RISE THROUGH THE DAY WITH HIGHS EXPECTED IN THE 70S. NEZ004>006-008-009-025-037-038-057-059-071-301515- /O.CAN.KLBF.FR.Y.0002.000000T0000Z-110930T1400Z/ SHERIDAN-EASTERN CHERRY-KEYA PAHA-BROWN-ROCK-THOMAS-LOGAN-CUSTER- KEITH-LINCOLN-FRONTIER- INCLUDING THE CITIES OF...GORDON...RUSHVILLE...VALENTINE... SPRINGVIEW...AINSWORTH...BASSETT...THEDFORD...STAPLETON... BROKEN BOW...OGALLALA...NORTH PLATTE...CURTIS...EUSTIS 903 AM CDT FRI SEP 30 2011 /803 AM MDT FRI SEP 30 2011/ ...FROST ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS CANCELLED THE FROST ADVISORY. TEMPERATURES WILL CONTINUE TO RISE OUT OF THE 30S AND 40S IN THE NEXT SEVERAL HOURS...WITH NO LINGERING THREAT OF FROST. $$ BROOKS
Nearby
Frost Advisories in Nebraska, 2011Every frost advisory in 2011
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.