Alert archive / Nebraska / Freeze Warnings in 2009
Freeze Warning 1, NWS North Platte, NE
NWS North Platte, NE issued this freeze warning at Sep 27, 2009, 2:54 PM MDT for 10 counties in Nebraska. It took effect at Sep 28, 2009, 12:00 AM MDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 27, 2009, 2:54 PM MDT (20:54 UTC)
- In effect from
- Sep 28, 2009, 12:00 AM MDT
- Expired
- Sep 28, 2009, 8:34 AM MDT
- In force
- 9 hr
- Issued by
- NWS North Platte, NE
Counties Arthur County, NE, Cherry County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, McPherson County, NE, Sheridan County, NE
The radar
The North Platte radar (KLNX), 91 km from the middle of the area, began a volume at 20:51 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
Denver, CO (KDNR), launched 12:00Z, 8.9 hours before the alert went out and 244 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
- 3782 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS North Platte, NE wrote its last area forecast discussion before this freeze warning went out at Sep 27, 2:53 PM MDT, 1 minute earlier.
Area forecast discussion, Sep 27, 2:53 PM MDT, 1 minute before
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</html>Hazardous weather outlook, Sep 27, 2:29 PM MDT, 25 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NORTH PLATTE NE 329 PM CDT SUN SEP 27 2009 NEZ004>010-022>029-035>038-056>059-069>071-094-281000- SHERIDAN-EASTERN CHERRY-KEYA PAHA-BOYD-BROWN-ROCK-HOLT-GARDEN- GRANT-HOOKER-THOMAS-BLAINE-LOUP-GARFIELD-WHEELER-ARTHUR-MCPHERSON- LOGAN-CUSTER-DEUEL-KEITH-PERKINS-LINCOLN-CHASE-HAYES-FRONTIER- WESTERN CHERRY- 329 PM CDT SUN SEP 27 2009 /229 PM MDT SUN SEP 27 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND NORTH CENTRAL NEBRASKA. .DAY ONE...TONIGHT. THE GUSTY NORTHWEST WINDS WILL GRADUALLY DIMINISH WITH THE LOSS OF HEATING THIS EVENING. THEN AS THE SURFACE RIDGE OF HIGH PRESSURE BUILDS SOUTH AND EAST OVERNIGHT MUCH COLDER AND DRIER AIR WILL BE USHERED IN. BY DAYBREAK MONDAY A FREEZE IS LIKELY FOR MUCH OF THE SANDHILLS SOUTH TO THE NORTH PLATTE RIVER VALLEY...AND IN AREAS WEST OF A LINE FROM CODY IN CHERRY COUNTY TO NORTH PLATTE IN LINCOLN COUNTY AS TEMPERATURES DROP AT OR BELOW 32 DEGREES FAHRENHEIT WITH A FREEZING WARNING IN EFFECT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. WEDNESDAY A FRONTAL SYSTEM WILL PUSH EAST WITH A CHANCE FOR THUNDERSTORMS BY EVENING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT. && THIS PRODUCT IS NOW AVAILABLE...ALONG WITH OTHER WEATHER... HYDROLOGICAL AND CLIMATOLOGICAL INFORMATION...AT HTTP://WWW.WEATHER.GOV/NORTHPLATTE KECK
Nearby
Freeze Warnings in Nebraska, 2009Every freeze 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.