Alert archive / Nebraska / Snow Advisories in 2006

Snow Advisory 5, NWS North Platte, NE

April 24, 20064 counties in Nebraska

NWS North Platte, NE issued this snow advisory at Apr 24, 2006, 3:00 AM MDT for 4 counties in Nebraska. It took effect at Apr 24, 2006, 12:00 PM MDT. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Apr 24, 2006, 3:00 AM MDT (09:00 UTC)
In effect from: Apr 24, 2006, 12:00 PM MDT
Expired: Apr 24, 2006, 2:09 PM MDT
In force: 2 hr
Issued by: NWS North Platte, NE

Counties Cherry County, NE, Garden County, NE, Grant County, NE, Sheridan County, NE

The radar

The North Platte radar (KLNX), 111 km from the middle of the area, began a volume at 09:00 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 00:00Z, 9.0 hours before the alert went out and 156 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: 307 J/kg
Mixed-layer CIN: -215 J/kg
Mixed-layer LCL: 1787 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this snow advisory 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 snow advisory went out at Apr 24, 2:31 AM MDT, 29 minutes earlier.

Area forecast discussion, Apr 24, 2:31 AM MDT, 29 minutes before

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Hazardous weather outlook, Apr 23, 9:45 PM MDT, 5 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1045 PM CDT SUN APR 23 2006

NEZ004>010-022>029-035>038-056>059-069>071-094-250345-
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-
1045 PM CDT SUN APR 23 2006 /945 PM MDT SUN APR 23 2006/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA.

.DAY ONE...TONIGHT.
THERE IS POSSIBILITY FOR THUNDERSTORMS TO DEVELOP OVER SOUTHWEST
NEBRASKA TONIGHT...GENERALLY SOUTH OF A GRANT TO WELLFLEET LINE.
THE MAIN THREAT FROM THUNDERSTORMS WILL BE LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
A STORNG SPRING STORM WILL AFFECT WESTERN AND NORTH CENTRAL NEBERASKA
ON MONDAY. THE POTENTIAL EXISTS FOR RAIN TO CHANGE TO SNOW ACROSS
PORTIONS OF WESTERN AND NORTH CENTRAL NEBRASKA MONDAY AFTERNOON LASTING
INTO TUESDAY MORNING. SNOWFALL ACCUMULATIONS OF AROUND SIX INCHES ARE
POSSIBLE BY TUESDAY MORNING...GENERALLY NORTH AND WEST OF A LINE
FROM KILGORE TO AINSWORTH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT.

&&

THIS PRODUCT IS NOW AVAILABLE...ALONG WITH OTHER WEATHER...
HYDROLOGICAL AND CLIMATOLOGICAL INFORMATION...AT
HTTP://WWW.WEATHER.GOV/NORTHPLATTE (ALL LOWERCASE)

MP

In the hours before

Local storm report, Apr 23, 11:15 PM MDT, 3 hours 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1215 AM CDT MON APR 24 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1210 AM     HAIL             NORTH PLATTE            41.13N 100.77W
04/24/2006  E1.00 INCH       LINCOLN            NE   PUBLIC

            MULTIPLE REPORTS OF NICKLE TO QUARTER SIZE HAIL

&&

JMC

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 8:59 PM MDT	Winter Storm Watch	LBF	Cherry, Sheridan	6 hr
Apr 23, 10:49 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	56 min
Apr 23, 11:05 PM MDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	50 min
Apr 23, 11:41 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	34 min
Apr 24, 12:04 AM MDT	Severe Thunderstorm Warning	LBF	Custer	56 min
Apr 24, 2:09 PM MDT	Snow and Blowing Snow Advisory	LBF	Cherry, Garden, Grant, Sheridan	7 hr

Nearby

Snow Advisories in Nebraska, 2006 Every snow advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.