Alert archive / Nebraska / Heat Advisories in 2016

Heat Advisory 5, NWS North Platte, NE

July 9, 201611 counties in Nebraska

NWS North Platte, NE issued this heat advisory at Jul 9, 2016, 3:42 PM CDT for 11 counties in Nebraska. It took effect at Jul 10, 2016, 1:00 PM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jul 9, 2016, 3:42 PM CDT (20:42 UTC)
In effect from
Jul 10, 2016, 1:00 PM CDT
Expired
Jul 10, 2016, 7:00 PM CDT
In force
6 hr
Issued by
NWS North Platte, NE

Counties Blaine County, NE, Boyd County, NE, Brown County, NE, Cherry County, NE, Custer County, NE, Garfield County, NE, Holt County, NE, Keya Paha County, NE, Loup County, NE, Rock County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 95 km from the middle of the area, began a volume at 20:45 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.

What forecasters said that day

The local office's own words before this heat 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 heat advisory went out at Jul 9, 3:25 PM CDT, 17 minutes earlier.

Area forecast discussion, Jul 9, 3:25 PM CDT, 17 minutes before
Area Forecast Discussion
National Weather Service North Platte NE
325 PM CDT SAT JUL 9 2016

.SHORT TERM...(This evening through Sunday)
Issued at 325 PM CDT Sat Jul 9 2016

Showers and thunderstorms are already beginning to develop across
western Nebraska. As the afternoon progresses, showers will become
more widespread and begin to move eastward. Best chance for storms
will be across the northern half of the region where plenty of
moisture and instability exists. Current SPC outlook has most of
central Nebraska under a marginal risk, which seems reasonable.
Scattered strong to severe storms are possible especially early in
the evening. As the dryline drifts back eastward through the evening
and instability begins to weaken, showers will slowly decrease in
strength and eventually diminish. Overnight lows will remain on the
warmer side (only in the upper 60s and low 70s).

Dry conditions will return for much of Sunday. The main concern on
Sunday will be the rising temperatures. Hottest temperatures are
forecast across the north (mainly Keya Paha and Boyd counties) with
air temperatures reaching up into the upper 90s and heat indexes in
the low 100s. Have issued a heat advisory for these counties from
1pm until 8pm. Another round of showers and thunderstorms are
possible late Sunday, with initiation time anticipated on being
after 00Z Monday.

.LONG TERM...(Sunday night through Saturday)
Issued at 325 PM CDT Sat Jul 9 2016

Sunday night, an upper trough will advance into the northern
plains. This will bring southwest flow aloft to the region.
Isolated storms will be possible during the evening west of a
Bassett through Stockville line, then in the east overnight.
Models in the west by late afternoon, with a slight chance
eastward overnight. Deep layer shear (0-6km) will range from 25 to
30 kts and be supportive of a few strong storms. A low level jet
will also increase by mid evening. Late sunday night, a pacific
front will arrive.

On Monday, highs will cool slightly to the mid 80s northwest to
around 90 southeast. Much drier air will also push eastward. There
remains a slight chance for thunderstorms across the east in the
morning along the pacific front, then across the far southeast
Monday afternoon. The front will stall monday night just
southeast of the forecast area, with a 20-30 percent chance of
elevated storms across the southeast zones.

Dry Tuesday, then at least a chance Wednesday into Wednesday
night, as the front remains near the Nebraska/Kansas border. The
ECMWF appears to generate an MCS across central Nebraska into
northeast Kansas with the GFS to a lesser extent. Storm chances
increase Thursday and Friday with a west-northwest flow aloft and
a surface front just south of the area. A similar scenario for an
MCS to develop Thursday/Thursday night with chances continuing
Friday into Saturday. Atmospheric moisture looks to be above
average, so heavy rainfall is possible with any organized
thunderstorm complex(es). Highs Tuesday through Saturday will
range in the mid to upper 80s.

&&

.AVIATION...(For the 18Z TAFS through 18Z Sunday afternoon)
Issued at 115 PM CDT Sat Jul 9 2016

For KLBF...VFR conditions continue through Sunday afternoon. A
lowering of clouds can be expected late this afternoon and tonight
as showers develop across the northern portion of Nebraska. Showers
and thunderstorms are not expected to impact KLBF tonight.

For KVTN...VFR conditions also continue through the remainder of the
afternoon. Shower and thunderstorm development is expected in the
early evening hours across northern Nebraska and slowly move
eastward. Increased winds and lowering of both ceilings and
visibilities are expected in any thunderstorm. Showers move east of
the terminal by 04Z Sunday. VFR conditions return for Sunday,
however, wind gusts increase up to 25 knots by midday.

&&

.LBF Watches/Warnings/Advisories...
Heat Advisory from 1 PM to 7 PM CDT Sunday for NEZ006-007.

&&

SHORT TERM...Kulik
LONG TERM...Roberg
AVIATION...Kulik
Hazardous weather outlook, Jul 9, 6:41 AM CDT, 9 hours 1 minute before
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In the hours before

Local storm report, Jul 9, 12:39 PM CDT, 3 hours 3 minutes before
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Local storm report, Jul 9, 12:41 PM CDT, 3 hours 1 minute before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 4:35 AM CDTSpecial Weather StatementLBFBoyd40 min
Jul 9, 5:09 AM CDTSpecial Weather StatementLBFBoyd51 min
Jul 9, 6:09 PM CDTSpecial Weather StatementLBFArthur51 min
Jul 9, 6:59 PM CDTSpecial Weather StatementLBFArthur46 min

Nearby

Heat Advisories in Nebraska, 2016Every heat advisory in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.