Alert archive / Nebraska / Fire Weather Watches in 2012

Fire Weather Watch 17, NWS North Platte, NE

June 25, 201216 counties in Nebraska

NWS North Platte, NE issued this fire weather watch at Jun 25, 2012, 3:46 PM CDT for 16 counties in Nebraska. It took effect at Jun 26, 2012, 12:00 PM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Jun 25, 2012, 3:46 PM CDT (20:46 UTC)
In effect from
Jun 26, 2012, 12:00 PM CDT
Expired
Jun 26, 2012, 4:18 AM CDT
In force
Issued by
NWS North Platte, NE

Counties Blaine County, NE, Boyd County, NE, Brown County, NE, Chase County, NE, Cherry County, NE, Frontier County, NE, Hayes County, NE, Holt County, NE, Hooker County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Rock County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 27 km from the middle of the area, began a volume at 20:43 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.8 hours before the alert went out and 71 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 2012-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1656 joules per kilogram.LFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2012-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 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
1656 J/kg
Mixed-layer CIN
-621 J/kg
Mixed-layer LCL
1137 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
-154 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this fire weather watch 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 fire weather watch went out at Jun 25, 3:25 PM CDT, 21 minutes earlier.

Area forecast discussion, Jun 25, 3:25 PM CDT, 21 minutes before
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Hazardous weather outlook, Jun 25, 6:34 AM CDT, 9 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
634 AM CDT MON JUN 25 2012

NEZ004>010-022>029-035>038-056>059-069>071-094-261145-
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-
634 AM CDT MON JUN 25 2012 /534 AM MDT MON JUN 25 2012/

...HEAT ADVISORY IN EFFECT FROM 1 PM TO 9 PM CDT FOR PORTIONS OF
SOUTHWEST NEBRASKA...

...RED FLAG WARNING IN EFFECT FROM NOON CDT /11 AM MDT/ TODAY TO
10 PM CDT /9 PM MDT/ THIS EVENING FOR THE EASTERN PANHANDLE INTO
PORTIONS OF THE WESTERN SANDHILLS AND SOUTHWEST NEBRASKA...

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

.DAY ONE...TODAY AND TONIGHT.

A STRONG UPPER LEVEL RIDGE OF HIGH PRESSURE WILL HELP TO PRODUCE
HOT CONDITIONS WITH HEAT INDEX VALUES AROUND 100 DEGREES THIS
AFTERNOON INTO EARLY EVENING ACROSS FRONTIER...HAYES...AND
LINCOLN COUNTY.

DRY AIR WILL SPREAD INTO WESTERN NEBRASKA AND COMBINE WITH HOT
TEMPERATURES AND SOUTHEAST WINDS OF 15 TO 30 MPH TO CREATE
CONDITIONS FAVORABLE FOR EXTREME FIRE GROWTH THIS AFTERNOON AND
EVENING. THE AREA OF CONCERN WILL GENERALLY BE WEST OF A LINE FROM
HAY SPRINGS THROUGH OGALLALA AND HAYES CENTER.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

EXTREME HEAT IS EXPECTED TO SPREAD NORTHWARD TUESDAY WITH MANY
LOCATIONS REACHING HIGHS ABOVE 100 DEGREES...WITH SOME AREAS
EXCEEDING 105 DEGREES ACROSS WESTERN NEBRASKA. WIDESPREAD
DANGEROUS HEAT INDEX READINGS ARE LIKELY ON TUESDAY...GENERALLY
EAST OF AN IMPERIAL THROUGH CODY LINE. AREAS WEST OF THIS LINE MAY
REACH CRITICAL FIRE CONDITIONS.

LITTLE OR NO PRECIPITATION IS EXPECTED THROUGH THIS WEEKEND...SO
VERY DRY CONDITIONS ARE LIKELY AS WELL. THIS WILL BRING A CONTINUED
RISK OF RANGE FIRE TO THE AREA.

.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

KAR

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 3:21 AM CDTHeat AdvisoryLBFFrontier, Hayes, Lincoln18 hr
Jun 25, 3:39 AM CDTRed Flag WarningLBFArthur, Chase, Cherry, Deuel, Garden, Grant and 5 more18 hr
Jun 25, 3:24 PM CDTHeat AdvisoryLBFArthur, Blaine, Boyd, Brown, Chase, Cherry and 18 more30 hr

Nearby

Fire Weather Watches in Nebraska, 2012Every fire weather watch 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.