Alert archive / Colorado / Special Weather Statements in 2016

Special Weather Statement, NWS Pueblo, CO

July 26, 2016Prowers County, Colorado

NWS Pueblo, CO issued this special weather statement at Jul 26, 2016, 11:23 PM MDT for Prowers County, Colorado. It was in force for 52 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 26, 2016, 11:23 PM MDT (05:23 UTC)
Expired
Jul 27, 2016, 12:15 AM MDT
In force
52 min
Issued by
NWS Pueblo, CO

County Prowers County, CO

The radar

The Pueblo radar (KPUX), 159 km from the middle of the area, began a volume at 05:23 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 00:00Z, 5.4 hours before the alert went out and 221 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, Denver, CO at 00:00Z on 2016-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 joules per kilogram.LCLLFCEL10008507005003002001001 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, Denver, CO at 00:00Z on 2016-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.19395878Sfc1 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
9 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
3589 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-48 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 Pueblo, CO wrote its last area forecast discussion before this special weather statement went out at Jul 26, 3:10 PM MDT, 8 hours 13 minutes earlier.

Area forecast discussion, Jul 26, 3:10 PM MDT, 8 hours 13 minutes before
Area Forecast Discussion
National Weather Service Pueblo CO
310 PM MDT TUE JUL 26 2016

.SHORT TERM...(This evening through Wednesday)
Issued at 310 PM MDT Tue Jul 26 2016

Thunderstorms developing once again across mainly the higher terrain
this afternoon, with radar at 21z looking fairly similar to 24 hrs
ago as initial storm development has favored the eastern mountains
and Palmer Divide. CAPE along the I-25 corridor running slightly
lower than this time yesterday, as dewpoints have fallen into the
upper 40s, though values remain in the 1000-1800 j/kg range. HRRR
again suggests sct tsra gradually shifting eastward across the area
late this afternoon into the evening, with the potential for some
small clusters of stronger storms producing severe wind gusts and
heavy rain, similar to the past few evenings. Slightly drier air and
lack of much upper support farther west should mean most mountain
convection will die out around sunset with loss of heating. Will
again end most convection by 06z-09z, with convective debris
cloudiness gradually dissipating by early Wed morning.

On Wed, drier air filters into the area from the west as upper ridge
builds northward into the Great Basin, which will at least briefly
suppress mid level monsoon plume south into NM/AZ. Still enough
residual moisture for some weak afternoon convection over the
mountains, and will keep isolated pops in place for most of the
higher peaks. On the plains, cold front drops south toward the
Palmer Divide late in the day and will add some low pops along the
divide and near the KS border late in the afternoon, as low level
moisture convergence near the boundary may force some storms, though
better chances stay north and east of the area. Max temps look to
drift back upward a degf or two most locations as heights build,
though hottest portions of the plains should stay just a shade below
100f.

.LONG TERM...(Wednesday night through Tuesday)
Issued at 310 PM MDT Tue Jul 26 2016

Little change to the ongoing forecast trends, with above normal
temps and a daily shot of isolated to scattered convection over the
mts, and isolated activity over the plains. Look for a pattern
change over the weekend.

Wednesday night through Saturday...The upper ridge of high pressure
will remain over the Great Basin through Friday, with movement to
the east expected on Saturday. Expect isolated activity across the
forecast area Wed eve, perhaps lingering over the far eastern plains
late Wed night as a cold front drops down eastern CO. This cold
front should drop max temps by about 5 degrees for the plains both
Thu and Fri, as well as helping isolated to scattered storms to
initiate across the plains both days. Further west, recycled
moisture trapped under the high pres ridge will continue to combine
to daily heating for aftn and eve showers and thunderstorms over the
higher terrain.

Sunday through Tuesday...A low pressure trough drops down across
British Columbia and the Pacific NW on Sunday, while the upper ridge
over the area moves east. The ridge axis is forecast to be right
along the CO/KS border by midday Sunday, once again opening up the
path for monsoon moisture to stream up across the 4 Corners and into
western CO. The trend is for temps to increase across the plains,
along with increased convection over the higher terrain and adjacent
plains. Look for max temps in the 90s to around 100 F for the
plains, and in the 80s for the high valleys. Moore

&&

.AVIATION...(For the 00Z TAFS through 00Z Wednesday evening)
Issued at 310 PM MDT Tue Jul 26 2016

Little change in the weather pattern today, with sct tsra over the
mountains this afternoon forecast to move slowly across interior
valleys and lower elevations into this evening.  Will keep a VCTS
mention for all tafs until 00z-01z, though with weak outflow
boundary already through KCOS as of 2030z, storms may stay mainly
south and east of the terminal. Activity shifts toward the KS border
this evening, with most storms done by midnight once again. Heavy
rain and gusty outflow winds the main storm threats, with some brief
MVFR/IFR vis under the strongest storms. VFR all areas overnight into
Wed morning, with only some very isolated mtn convection expected Wed
afternoon.

&&

.PUB Watches/Warnings/Advisories...
NONE.
&&

SHORT TERM...PETERSEN
LONG TERM...MOORE
AVIATION...PETERSEN
Hazardous weather outlook, Jul 26, 10:55 PM MDT, 28 minutes before
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In the hours before

Special weather statement, Jul 26, 8:57 PM MDT, 2 hours 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
857 PM MDT TUE JUL 26 2016

COZ095-096-270345-
EASTERN KIOWA COUNTY CO-WESTERN KIOWA COUNTY CO-
857 PM MDT TUE JUL 26 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL KIOWA COUNTY UNTIL
945 PM MDT...

AT 857 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR EADS...OR 29 MILES SOUTHWEST OF CHEYENNE WELLS...MOVING EAST AT
15 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
EADS AND CHIVINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3836 10252 3850 10291 3862 10286 3861 10242
TIME...MOT...LOC 0257Z 287DEG 13KT 3857 10279

KT
Special weather statement, Jul 26, 9:39 PM MDT, 1 hour 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
939 PM MDT TUE JUL 26 2016

COZ096-098-270430-
LAMAR VICINITY/PROWERS COUNTY CO-EASTERN KIOWA COUNTY CO-
939 PM MDT TUE JUL 26 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN PROWERS AND EASTERN
KIOWA COUNTIES UNTIL 1030 PM MDT...

AT 938 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR BRANDON...OR 19 MILES SOUTH OF CHEYENNE WELLS...MOVING
SOUTHEAST AT 30 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SHERIDAN LAKE...BRANDON...CHIVINGTON AND TOWNER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3837 10257 3861 10251 3861 10205 3826 10205
TIME...MOT...LOC 0338Z 294DEG 25KT 3854 10242

KT
Special weather statement, Jul 26, 10:32 PM MDT, 51 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
1032 PM MDT TUE JUL 26 2016

COZ096-098-270515-
LAMAR VICINITY/PROWERS COUNTY CO-EASTERN KIOWA COUNTY CO-
1032 PM MDT TUE JUL 26 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN PROWERS AND SOUTHEASTERN
KIOWA COUNTIES UNTIL 1115 PM MDT...

AT 1032 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 10
MILES NORTHWEST OF BRISTOL...OR 15 MILES NORTHEAST OF LAMAR...MOVING
SOUTHEAST AT 15 MPH.

HALF INCH HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
GRANADA...HARTMAN AND BRISTOL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3791 10224 3814 10262 3842 10246 3830 10204
      3821 10204
TIME...MOT...LOC 0432Z 293DEG 14KT 3825 10244

KT
Special weather statement, Jul 26, 11:23 PM MDT, 0 minutes before
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The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 26, 8:57 PM MDTSpecial Weather StatementPUBKiowa48 min
Jul 26, 9:39 PM MDTSpecial Weather StatementPUBKiowa51 min
Jul 26, 9:48 PM MDTSevere Thunderstorm WarningPUBKiowa42 min
Jul 26, 10:32 PM MDTSpecial Weather StatementPUBProwers43 min
Jul 26, 10:36 PM MDTSevere Thunderstorm WarningPUBKiowa, Prowers39 min
Jul 27, 12:51 AM MDTSpecial Weather StatementPUBProwers39 min
Jul 27, 12:56 AM MDTAreal Flood AdvisoryPUBProwers3 hr
Jul 27, 3:23 PM MDTSpecial Weather StatementPUBBaca52 min
Jul 27, 3:53 PM MDTSpecial Weather StatementPUBBaca52 min
Jul 27, 4:14 PM MDTSevere Thunderstorm WarningPUBBaca46 min
Jul 27, 5:04 PM MDTSpecial Weather StatementPUBBaca41 min
Jul 27, 5:21 PM MDTSevere Thunderstorm WarningPUBBaca, Las Animas24 min

Nearby

Special Weather Statements in Colorado, 2016Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.