Alert archive / Nebraska / Special Weather Statements in 2018

Special Weather Statement, NWS Cheyenne, WY

August 6, 2018Box Butte County, Nebraska

NWS Cheyenne, WY issued this special weather statement at Aug 6, 2018, 3:40 PM MDT for Box Butte County, Nebraska. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 6, 2018, 3:40 PM MDT (21:40 UTC)
Expired: Aug 6, 2018, 4:30 PM MDT
In force: 50 min
Issued by: NWS Cheyenne, WY

County Box Butte County, NE

The radar

The North Platte radar (KLNX), 192 km from the middle of the area, began a volume at 21:43 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 text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cheyenne, WY wrote its last area forecast discussion before this special weather statement went out at Aug 6, 3:06 PM MDT, 34 minutes earlier.

Area forecast discussion, Aug 6, 3:06 PM MDT, 34 minutes before

Area Forecast Discussion
National Weather Service Cheyenne WY
306 PM MDT Mon Aug 6 2018

.SHORT TERM...(This evening through Wednesday)
Issued at 255PM MDT Mon Aug 6 2018

Another active afternoon today with strong to severe thunderstorms
developing over far southeast Wyoming. A Severe Thunderstorm Watch
is in effect for extreme southeast Wyoming and the southern
Nebraska panhandle until 9 PM late this evening. One of these
thunderstorms, which went over western and southern Cheyenne,
produced up to golf ball sized hail as it moved south into
Colorado. Expect a few more strong to severe thunderstorms to form
in and near the Watch area this afternoon through this evening.
Hail will be the primary threat with these thunderstorms with some
localized flash flooding and strong winds. Active should push
southeast of the area by 9 or 10 pm.

Similar conditions are expected on Tuesday, although there will be
somewhat less of a severe weather threat with long/narrow CAPE on
model soundings. A few thunderstorms may become strong, but should
be rather isolated and occur later in the day. Models show some
drier air moving into the area for Wednesday which will limit
thunderstorm coverage to isolated, and mainly over southeast
Wyoming.

.LONG TERM...(Tuesday - Sunday)
Issued at 412 AM MDT Mon Aug 6 2018

In general, a warmer and drier period of weather should prevail as
upper-level ridging builds across the western CONUS. An occasional
disturbance/ridge-runner will yield a convective risk from time to
time, but do not expect to see any organized precipitation chances
through the extended forecast period.

&&

.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1140 AM MDT Mon Aug 6 2018

The main concern with this TAF issuance is the timing of the
convection this afternoon and whether or not fog will redevelop
again overnight. Latest satellite loop was showing a band of
thunderstorms continuing to lift north towards KCDR. This cluster
of thunderstorms will produce some areas of heavy rainfall, but
should gradually lift out of this area by mid afternoon. KCYS also
stands a good chance of seeing a few thunderstorms today based on
the amount ACCAS in place. Not as confident about KLAR, but KSNY,
KBFF and KAIA, could see more thunderstorms towards evening as
storms develop along the front range. We will make more
adjustments to the ceilings and vsby tonight in later TAF
issuances, based on where the rainfall occurs this afternoon.

&&

.FIRE WEATHER...
Issued at 143 PM MDT Mon Aug 6 2018

Fire Weather concerns are expected to be low through this weekend.
Showers and thunderstorms will continue for mostly southeast Wyoming
through Wednesday of this week. Warmer and drier conditions are
expected by the end of the week and into the weekend, but wind
should remain light over the next 7 days. Daytime minimum relative
humidities will lower to around 15 to 20 percent, each day, west
of Interstate 25 but light winds should keep concerns minimal.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...None.
NE...None.
&&

SHORT TERM...TJT
LONG TERM...CLH
AVIATION...REC
FIRE WEATHER...TJT

Hazardous weather outlook, Aug 6, 2:45 PM MDT, 55 minutes before

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In the hours before

Local storm report, Aug 6, 2:23 PM MDT, 1 hour 17 minutes before

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Local storm report, Aug 6, 2:48 PM MDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
248 PM MDT MON AUG 6 2018

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

0218 PM     HAIL             4 S CHEYENNE            41.09N 104.79W
08/06/2018  E1.75 INCH       LARAMIE            WY   PUBLIC

            GOLF BALL SIZE HAIL REPORTED IN ORCHARD VALLEY, CHEYENNE.

&&

WORLEY

Special weather statement, Aug 6, 2:49 PM MDT, 51 minutes before

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Local storm report, Aug 6, 2:53 PM MDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
253 PM MDT MON AUG 6 2018

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

0215 PM     HAIL             2 S CHEYENNE            41.12N 104.79W
08/06/2018  M1.00 INCH       LARAMIE            WY   PUBLIC

&&

WORLEY

Local storm report, Aug 6, 3:25 PM MDT, 15 minutes before

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Special weather statement, Aug 6, 3:40 PM MDT, 0 minutes before

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The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 5, 6:01 PM MDT	Special Weather Statement	CYS	Niobrara	29 min
Aug 5, 6:35 PM MDT	Special Weather Statement	CYS	Niobrara	40 min
Aug 5, 8:32 PM MDT	Special Weather Statement	CYS	Laramie	43 min
Aug 6, 12:21 AM MDT	Special Weather Statement	CYS	Laramie	24 min
Aug 6, 1:51 PM MDT	Special Weather Statement	CYS	Laramie	39 min
Aug 6, 1:58 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	47 min
Aug 6, 2:17 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	43 min
Aug 6, 2:49 PM MDT	Special Weather Statement	CYS	Laramie	41 min
Aug 6, 3:42 PM MDT	Special Weather Statement	CYS	Laramie	48 min
Aug 6, 3:59 PM MDT	Special Weather Statement	CYS	Converse	46 min
Aug 6, 4:42 PM MDT	Severe Thunderstorm Warning	CYS	Converse, Niobrara, Platte	33 min
Aug 6, 5:11 PM MDT	Severe Thunderstorm Warning	CYS	Goshen, Platte	16 min
Aug 5, 6:05 PM MDT	Special Weather Statement	CYS	Banner	25 min
Aug 5, 6:15 PM MDT	Special Weather Statement	CYS	Kimball	45 min
Aug 5, 7:09 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne, Kimball	36 min
Aug 5, 7:33 PM MDT	Special Weather Statement	CYS	Dawes	42 min
Aug 5, 9:54 PM MDT	Special Weather Statement	CYS	Dawes	51 min
Aug 6, 12:41 AM MDT	Special Weather Statement	CYS	Kimball	34 min
Aug 6, 3:26 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Sioux	49 min
Aug 6, 3:56 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Morrill	49 min
Aug 6, 4:33 PM MDT	Severe Thunderstorm Warning	CYS	Morrill	42 min
Aug 6, 5:08 PM MDT	Severe Thunderstorm Warning	CYS	Morrill	26 min

Nearby

Special Weather Statements in Nebraska, 2018 Every special weather statement in 2018

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.