Alert archive / Colorado / Special Weather Statements in 2016

Special Weather Statement, NWS Goodland, KS

July 28, 2016Cheyenne County, Colorado

NWS Goodland, KS issued this special weather statement at Jul 28, 2016, 8:07 PM MDT for Cheyenne County, Colorado. It was in force for 8 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: Jul 28, 2016, 8:07 PM MDT (02:07 UTC)
Expired: Jul 28, 2016, 8:15 PM MDT
In force: 8 min
Issued by: NWS Goodland, KS

County Cheyenne County, CO

The radar

The Pueblo radar (KPUX), 106 km from the middle of the area, began a volume at 02:05 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 Goodland, KS wrote its last area forecast discussion before this special weather statement went out at Jul 28, 8:02 PM MDT, 5 minutes earlier.

Area forecast discussion, Jul 28, 8:02 PM MDT, 5 minutes before

Area Forecast Discussion
National Weather Service Goodland KS
802 PM MDT THU JUL 28 2016

.UPDATE...
Issued at 802 PM MDT Thu Jul 28 2016

Update to forecast to remove Gove county from the Severe
Thunderstorm Watch...keeping Cheyenne county in NE Colorado.
convection will mostly be confined to Cheyenne county over the
next few hours w/ the remnants of the earlier boundary as a focus
for movement.

&&

.SHORT TERM...(This evening through Friday)
Issued at 120 PM MDT Thu Jul 28 2016

The primary short term concern is the possibility of thunderstorms
and severe weather across the forecast area this afternoon and
tonight.

Early morning convection spread a large area of cooler air across
the northern 2/3 of the forecast area.  Have adjusted high
temperatures downward as a result for today also since another round
of cloud cover with convection is moving into the northern sections
of the forecast area.  The area of cooler air with temperatures in
the 70s may put a temporary damper on additional convective
initiation. However, south of the cool air, temperatures are
continuing to rise into the 90s.  So somewhere between the two,
likely near the boundary stretching from northeastern Colorado to
southwestern Kansas, expect additional convection to develop this
afternoon as the ongoing convection moves into the northern sections
of the forecast area. A check of guidance earlier this morning
showed CAPE values between 3k-4k in the current vicinity of the
boundary along with shear values that would support supercell
thunderstorm development.  Peak thunderstorm activity and severe
weather is expected primarily between 21Z and 03Z with storms
expected to taper off and move out of the area after 06Z.

On Friday generally cooler temperatures are expected across the
forecast area with isolated thunderstorms possible. No severe
weather expected on Friday at this time.

.LONG TERM...(Friday night through Thursday)
Issued at 120 PM MDT Thu Jul 28 2016

The extended period has the potential to see precipitation each day
across the region. The only day that will be different is Friday
night, where upper level northwest flow will still be over the CWA.
Precipitation chances are still possible through the overnight hours
on Friday but the greatest potential for storms will be to the south
and southeast of the region. This is because the shortwave that is
moving through the high to central plains will be over those
locations; so instabilty will be greater down there.

For the majority of the period the CWA will be impacted by a ridge.
The GFS and European agree for the most part but differ slightly
starting Monday. The GFS has a more amplified ridge, whereas the
European has a less amplified ridge (almost a zonal pattern). As of
current model runs these difference don't show to be impacting the
CWA differently but will keep an eye on the progression as next week
approaches. As mentioned prior, precipitation chances are possible
during the afternoon into the overnight hours each day. This is due
to the inflow of moisture from the Gulf of California and Arizona
into the region. That along with embedded weak mid-level shortwaves
will help with developing some instabilty over the region. For the
most part, at this time, severe storms are not expected but isolated
strong storms are possible.

Temperatures are expected to reach into the mid to upper 90s
next week as the ridge impacts the region.

&&

.AVIATION...(For the 00Z TAFS through 00Z Friday evening)
Issued at 528 PM MDT Thu Jul 28 2016

For KGLD...VFR thru 06z with scattered/broken mid clouds giving
way to VCTS aft 02z. After 06z...mainly MVFR thru 16z Friday with
ceilings bkn015-025 and 3sm br 10z-16z. VFR after 16z Friday.
Winds meandering from ENE to SE thru the period around 10kts.
Gusts to 20kts are possible thru 06z Friday.

For KMCK...VFR thru 08z Friday with scattered/broken mid clouds
giving way to VCTS/SHRA by 03z. From 08z-14z MVFR with 3sm br and
ceilings around bkn025. After 14z Friday...VFR with scattered low
clouds. Winds ENE to SE around 10kts.

&&

.GLD Watches/Warnings/Advisories...
KS...NONE.
CO...NONE.
NE...NONE.
&&

UPDATE...JN
SHORT TERM...LOCKHART
LONG TERM...CLT
AVIATION...JN

Hazardous weather outlook, Jul 28, 6:20 PM MDT, 1 hour 47 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
620 PM MDT THU JUL 28 2016

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-300030-
YUMA COUNTY-KIT CARSON COUNTY-CHEYENNE COUNTY-CHEYENNE-RAWLINS-
DECATUR-NORTON-SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-
GREELEY-WICHITA-DUNDY-HITCHCOCK-RED WILLOW-
620 PM MDT THU JUL 28 2016 /720 PM CDT THU JUL 28 2016/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL COLORADO...
EXTREME SOUTHWEST NEBRASKA AND NORTHWEST KANSAS.

.DAY ONE...TONIGHT...

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS EVENING. LARGE
HAIL...DAMAGING WINDS...LOCALLY HEAVY RAINFALL...AND A FEW
TORNADOES ARE ALL POSSIBLE. SEVERE STORMS WILL CONTINUE THROUGH
THE EVENING HOURS BEFORE ENDING AROUND MIDNIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

THERE WILL BE LOW CHANCES FOR THUNDERSTORMS EACH DAY. HOWEVER...AT
THIS TIME...WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

In the hours before

Local storm report, Jul 28, 2:12 PM MDT, 5 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
212 PM MDT THU JUL 28 2016

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

0206 PM     TSTM WND GST     MCCOOK                  40.20N 100.62W
07/28/2016  E59 MPH          RED WILLOW         NE   ASOS

&&

TLYNCH

Local storm report, Jul 28, 2:29 PM MDT, 5 hours 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
229 PM MDT THU JUL 28 2016

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

0228 PM     TSTM WND GST     OBERLIN                 39.82N 100.53W
07/28/2016  E62 MPH          DECATUR            KS   AWOS

&&

TLYNCH

Local storm report, Jul 28, 2:32 PM MDT, 5 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE GOODLAND KS
232 PM MDT THU JUL 28 2016

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

0206 PM     TSTM WND GST     MCCOOK                  40.20N 100.62W
07/28/2016  M59.00 MPH       RED WILLOW         NE   ASOS

0228 PM     TSTM WND GST     OBERLIN                 39.82N 100.53W
07/28/2016  M62.00 MPH       DECATUR            KS   AWOS

&&

TLYNCH

Local storm report, Jul 28, 3:09 PM MDT, 4 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
309 PM MDT THU JUL 28 2016

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

0212 PM     FLASH FLOOD      1 SW MCCOOK             40.20N 100.63W
07/28/2016                   RED WILLOW         NE   PUBLIC

            WATER FLOWING ACROSS HIGHWAY 34 IN PLACES UP TO 12 INCHES
            DEEP.

&&

TLYNCH

Local storm report, Jul 28, 3:10 PM MDT, 4 hours 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
310 PM MDT THU JUL 28 2016

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

0306 PM     TSTM WND GST     NORTON                  39.84N 99.89W
07/28/2016  M58 MPH          NORTON             KS   AWOS

&&

TLYNCH

Special weather statement, Jul 28, 8:07 PM MDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
807 PM MDT THU JUL 28 2016

COZ092-290215-
CHEYENNE COUNTY CO-
807 PM MDT THU JUL 28 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CHEYENNE COUNTY IN
EAST CENTRAL COLORADO UNTIL 815 PM MDT...

AT 806 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
BOYERO...OR 28 MILES SOUTH OF FLAGLER...MOVING SOUTHEAST AT 50 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
WILD HORSE AND AROYA.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
STATIONS AND AVAILABLE TELEVISION STATIONS FOR ADDITIONAL INFORMATION
AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT MDT FOR
EAST CENTRAL COLORADO.

LAT...LON 3900 10316 3887 10283 3864 10302 3873 10316
TIME...MOT...LOC 0206Z 301DEG 43KT 3891 10324

JRM

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 28, 9:20 PM MDT	Special Weather Statement	GLD	Graham	10 min
Jul 28, 9:35 PM MDT	Special Weather Statement	GLD	Graham	10 min
Jul 28, 9:40 PM MDT	Severe Thunderstorm Warning	GLD	Graham	19 min
Jul 28, 9:49 PM MDT	Special Weather Statement	GLD	Logan	11 min
Jul 28, 10:46 PM MDT	Severe Thunderstorm Warning	GLD	Gove	14 min
Jul 29, 1:00 AM MDT	Special Weather Statement	GLD	Thomas	15 min
Jul 28, 8:22 PM MDT	Special Weather Statement	GLD	Cheyenne	8 min
Jul 28, 8:28 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	27 min
Jul 28, 8:42 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	33 min
Jul 28, 9:14 PM MDT	Special Weather Statement	GLD	Cheyenne	16 min
Jul 28, 9:28 PM MDT	Special Weather Statement	GLD	Cheyenne	17 min
Jul 28, 9:34 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	26 min
Jul 28, 9:52 PM MDT	Special Weather Statement	GLD	Cheyenne	8 min
Jul 28, 10:01 PM MDT	Special Weather Statement	GLD	Cheyenne	14 min
Jul 28, 10:20 PM MDT	Special Weather Statement	GLD	Cheyenne	40 min

Nearby

Special Weather Statements in Colorado, 2016 Every special weather statement 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.