Alert archive / Colorado / Special Weather Statements in 2017

Special Weather Statement, NWS Goodland, KS

May 7, 2017Yuma County, Colorado

NWS Goodland, KS issued this special weather statement at May 7, 2017, 5:49 PM MDT for Yuma County, Colorado. It was in force for 26 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: May 7, 2017, 5:49 PM MDT (23:49 UTC)
Expired: May 7, 2017, 6:15 PM MDT
In force: 26 min
Issued by: NWS Goodland, KS

County Yuma County, CO

The radar

The Goodland radar (KGLD), 105 km from the middle of the area, began a volume at 23:48 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

Denver, CO (KDEN), launched 12:00Z, 11.8 hours before the alert went out and 49 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2902 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 May 7, 2:15 PM MDT, 3 hours 34 minutes earlier.

Area forecast discussion, May 7, 2:15 PM MDT, 3 hours 34 minutes before

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Hazardous weather outlook, May 7, 10:10 AM MDT, 7 hours 39 minutes before

Hazardous Weather Outlook
National Weather Service Goodland KS
1010 AM MDT Sun May 7 2017

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-081200-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
1010 AM MDT Sun May 7 2017 /1110 AM CDT Sun May 7 2017/

This hazardous weather outlook is for east central Colorado...
extreme southwest Nebraska and northwest Kansas.

.DAY ONE...TODAY AND TONIGHT...

Showers and thunderstorms are expected to slowly increase in coverage
starting early this afternoon and continuing through early this
evening. Outflow winds gusting up to 70 mph are possible which could
produce some blowing dust and reduced visibilities. Cloud to ground
lightning is also expected and when combined with the strong winds
increase the threat for fire danger. The area of concern is generally
along and west of a line from Trenton Nebraska to Colby and Tribune
Kansas.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

A period of active weather is expected from Monday on through
Thursday. Thunderstorms are possible...some of which may be strong
to severe, particularly on Monday and Tuesday. Storms may produce
moderate to heavy rain as well.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required. We would appreciate any reports
of wind gusts over 50 mph as well as blowing dust and reduced
visibilities.

In the hours before

Special weather statement, May 7, 4:43 PM MDT, 1 hour 6 minutes before

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Special weather statement, May 7, 4:54 PM MDT, 55 minutes before

Special Weather Statement
National Weather Service Goodland KS
454 PM MDT SUN MAY 7 2017

COZ091-072315-
Kit Carson County CO-
454 PM MDT SUN MAY 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN KIT CARSON COUNTY
UNTIL 515 PM MDT...

At 453 PM MDT, Doppler radar was tracking a strong thunderstorm 9
miles north of Flagler, moving north at 30 mph.

Wind gusts of 50 to 55 mph will be possible with this storm.

This storm will remain over mainly rural areas of northwestern Kit
Carson County.

LAT...LON 3952 10316 3957 10315 3957 10281 3932 10283
      3932 10315
TIME...MOT...LOC 2253Z 192DEG 27KT 3943 10309

Lundquist

Special weather statement, May 7, 5:02 PM MDT, 47 minutes before

Special Weather Statement
National Weather Service Goodland KS
502 PM MDT SUN MAY 7 2017

COZ091-092-072315-
Kit Carson County CO-Cheyenne County CO-
502 PM MDT SUN MAY 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CHEYENNE AND
SOUTHWESTERN KIT CARSON COUNTIES IN EAST CENTRAL COLORADO UNTIL 515
PM MDT...

At 501 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Genoa to 14 miles south of Flagler.
Movement was northeast at 50 mph.

Wind gusts of 50 to 55 mph will be possible with these storms.

Locations impacted include...
Flagler and Seibert.

This includes Interstate 70 in Colorado between mile markers 391 and
410.

LAT...LON 3934 10315 3931 10275 3886 10308 3890 10316
TIME...MOT...LOC 2301Z 208DEG 44KT 3929 10345 3908 10305

Lundquist

Special weather statement, May 7, 5:19 PM MDT, 30 minutes before

Special Weather Statement
National Weather Service Goodland KS
519 PM MDT SUN MAY 7 2017

COZ090-091-072345-
Kit Carson County CO-Yuma County CO-
519 PM MDT SUN MAY 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN YUMA AND WESTERN KIT
CARSON COUNTIES UNTIL 545 PM MDT...

At 518 PM MDT, thunderstorm outflow was located along a line
extending from 9 miles southwest of Cope to 9 miles south of Seibert.
Movement was northeast at 45 mph.

Wind gusts of 50 to 55 mph will be possible.

Locations impacted include...
Stratton, Flagler, Seibert, Vona and Joes.

This includes Interstate 70 in Colorado between mile markers 390 and
423.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms 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.

&&

LAT...LON 3957 10315 3957 10280 3968 10280 3974 10268
      3920 10250 3907 10299 3908 10316
TIME...MOT...LOC 2318Z 230DEG 39KT 3956 10294 3917 10282

Lundquist

Special weather statement, May 7, 5:39 PM MDT, 10 minutes before

Special Weather Statement
National Weather Service Goodland KS
539 PM MDT SUN MAY 7 2017

COZ090-091-080000-
Kit Carson County CO-Yuma County CO-
539 PM MDT SUN MAY 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN YUMA AND
NORTHEASTERN KIT CARSON COUNTIES UNTIL 600 PM MDT...

At 538 PM MDT, thunderstorm outflow was located along a line
extending from 4 miles east of Cope to 7 miles south of Stratton.
Movement was northeast at 50 mph.

Based on wind reports as the outflow moved through, wind gusts up to
50 mph will be possible.

Locations impacted include...
Burlington, Stratton, Bethune, Joes and Kirk.

This includes the following highways...
 Interstate 70 in Colorado between mile markers 417 and 438.
 Highway 385 between mile markers 184 and 188.

LAT...LON 3969 10280 3983 10251 3926 10224 3916 10260
      3962 10281
TIME...MOT...LOC 2338Z 222DEG 43KT 3965 10277 3920 10257

Lundquist

Special weather statement, May 7, 5:49 PM MDT, 0 minutes before

Special Weather Statement
National Weather Service Goodland KS
549 PM MDT SUN MAY 7 2017

COZ090-080015-
Yuma County CO-
549 PM MDT SUN MAY 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL YUMA COUNTY UNTIL
615 PM MDT...

At 549 PM MDT, Doppler radar was tracking a strong thunderstorm 13
miles north of Cope, or 18 miles south of Yuma, moving northeast at
30 mph.

Wind gusts near 60 mph will be possible with this storm.

Locations impacted include...
Abarr and Heartstrong.

LAT...LON 4015 10263 3997 10237 3971 10274 3977 10280
      3997 10280
TIME...MOT...LOC 2349Z 222DEG 26KT 3986 10276

Lundquist

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 2:04 PM MDT	Special Weather Statement	GLD	Sherman	11 min
May 7, 4:38 PM MDT	Special Weather Statement	GLD	Kit Carson	22 min
May 7, 4:43 PM MDT	Special Weather Statement	GLD	Cheyenne	17 min
May 7, 4:54 PM MDT	Special Weather Statement	GLD	Kit Carson	21 min
May 7, 5:02 PM MDT	Special Weather Statement	GLD	Kit Carson	13 min
May 7, 5:19 PM MDT	Special Weather Statement	GLD	Kit Carson	26 min
May 7, 5:39 PM MDT	Special Weather Statement	GLD	Kit Carson	21 min

Nearby

Special Weather Statements in Colorado, 2017 Every special weather statement in 2017

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.