Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Lubbock, TX

June 28, 2021Dickens County, Texas

NWS Lubbock, TX issued this special weather statement at Jun 28, 2021, 10:04 AM CDT for Dickens County, Texas. 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
Jun 28, 2021, 10:04 AM CDT (15:04 UTC)
Expired
Jun 28, 2021, 10:30 AM CDT
In force
26 min
Issued by
NWS Lubbock, TX

County Dickens County, TX

The radar

The Lubbock radar (KLBB), 92 km from the middle of the area, began a volume at 15:05 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 nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 3.1 hours before the alert went out and 204 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, Midland Regional, TX at 12:00Z on 2021-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 34 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, Midland Regional, TX at 12:00Z on 2021-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 square meters per square second.1939Sfc1 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
34 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
744 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
65 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 Lubbock, TX wrote its last area forecast discussion before this special weather statement went out at Jun 28, 10:04 AM CDT, 0 minutes earlier.

Area forecast discussion, Jun 28, 10:04 AM CDT, 0 minutes before
Area Forecast Discussion
National Weather Service Lubbock TX
1004 AM CDT Mon Jun 28 2021

.UPDATE...
Based on current trends and expected evolution of shower activity,
have issued a Flash Flood Watch for the Rolling Plains through
this evening. Current shower activity appears to be propagating
north-northeastward along a weak instability gradient, enhanced by
the presence of a weak upper level cyclonic impulse currently over
southern New Mexico. Overall bulk shear remains weak, but the
weak veering wind profiles combined with an expected increase in
instability due to modest surface heating across the Rolling
Plains suggest that the development of additional convective
cores within shower activity is plausible. While overall coverage
of heavy rain is uncertain, rainfall rates within the heaviest
activity this morning have been up to 2 inches per hour. With
higher rainfall totals east of I-27 throughout the past few days,
the flash flood threat is amplified this afternoon across the
Rolling Plains. Elsewhere, areas of showers and a few pop-up
thunderstorms remain possible across the entire CWA. /DWK

&&

.PREV DISCUSSION... /issued 620 AM CDT Mon Jun 28 2021/

AVIATION...
Light rain shower activity and possibly a rumble of thunder will
continue for much of today at all TAF sites. Patchy low CIGS this
morning are expected to mostly be MVFR to VFR but may drop into
IFR category within heavier rain showers. Rain showers may then
continue through the overnight hours with greater chances of
widespread low CIGS moving in to all TAF sites.

PREV DISCUSSION... /issued 247 AM CDT Mon Jun 28 2021/

SHORT TERM...
Scattered showers and isolated thunderstorms will continue today
within a very moist and cool environment. An upper level jet on the
downwind side of an upper trough axis will continue to provide a
broad area of upper level divergence overhead. However, we will
begin to undergo rising heights overhead as an upper ridge over the
eastern CONUS expands from east to west. Rain shower and isolated
thunderstorm activity today and tonight will primarily be driven by
isentropic upglide/warm air advection processes. So, updrafts are
generally expected to be fairly weak. This is further supported by
the thermodynamic profiles which remain similar to Sunday. The
entire atmospheric column will be nearly saturated leading to moist
adiabatic lapse rates. As a result, weak instability values will
exist in this environment. Precipitable water values will persist
around 125-150 percent of normal for this time of year. Because of
these expected conditions, chances of severe storms will be zero to
nearly zero. There will be a higher chance of heavy rainfall. But
any convective development will likely be disorganized and heavy
rainfall will not be destined for a long period of time in any one
spot. Rainfall this morning under the heaviest cores have been on
the order of only about 1-1.5 inches per hour at the highest. This
rainfall/isolated thunder activity will continue through the
overnight hours as moist isentropic upglide persists.

LONG TERM...
The upper-level trough that has brought upper-level support for
precipitation over the region will begin to lift north on Tuesday.
As the trough lifts, an upper high to our east will expand west over
the region. This will effectively shut off much of the upper-level
support that the area has had the last few days. At the surface,
winds will become easterly on Tuesday as a surface high moves to our
north. Winds will become southerly on Wednesday as a surface high
strengthens over the southeastern CONUS. This will help lock in and
reinforce moisture in the region. Precipitable water values are
expected to remain ~150% of normal through the week as well. There
is some chance that ridging will hamper daytime convection over the
area. However, nighttime convection will still be possible and could
aid in daytime convection if boundaries remain over or near the
region.

An upper-low will move over the Great Lakes region late this week,
potentially driving a front through the region. This front will
provide our next shot of widespread convection. As the trough
deepens to our northeast, flow overhead will become northwesterly.
This flow regime should allow for additional rounds of precipitation
each evening as convection slides into the region from the higher
terrain of New Mexico. GKendrick

&&

.LUB WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch until 9 PM CDT this evening for TXZ024>026-
030>032-036>038-042>044.

&&

30/01/10
Hazardous weather outlook, Jun 28, 4:39 AM CDT, 5 hours 25 minutes before
Hazardous Weather Outlook
National Weather Service Lubbock TX
439 AM CDT Mon Jun 28 2021

TXZ021>044-290945-
Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale-Floyd-
Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King-Yoakum-
Terry-Lynn-Garza-Kent-Stonewall-
439 AM CDT Mon Jun 28 2021

This Hazardous Weather Outlook is for the South Plains, Rolling
Plains and the far Southern Texas Panhandle.

.DAY ONE...Today and tonight.

Scattered showers and isolated thunderstorms will affect the South
Plains region today into tonight. The more intense activity will be
capable of producing heavy rain and minor flooding.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Thunderstorms and heavy rainfall will be possible through
the end of the week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Jun 28, 9:05 AM CDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
905 AM CDT MON JUN 28 2021

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

0855 AM     FLOOD            3 NW JUSTICEBURG        33.08N 101.24W
06/28/2021                   GARZA              TX   LAW ENFORCEMENT

            GARZA COUNTY SHERIFF REPORTS MULTIPLE AREAS OF WATER
            RUNNING OVER THE ROADWAY ON US-84 BETWEEN POST AND
            JUSTICEBURG.

&&

EVENT NUMBER LUB2100432

DWK
Local storm report, Jun 28, 9:41 AM CDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
941 AM CDT MON JUN 28 2021

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

0854 PM     TORNADO          1 S OPDYKE WEST         33.57N 102.30W
06/27/2021                   HOCKLEY            TX   SOCIAL MEDIA

            BRIEF ROPE - NO DAMAGE REPORTED

&&

EVENT NUMBER LUB2100433

JGD
Local storm report, Jun 28, 9:43 AM CDT, 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
943 AM CDT MON JUN 28 2021

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

1120 AM     DOWNBURST        2 N OPDYKE WEST         33.62N 102.30W
06/27/2021  U0 MPH           HOCKLEY            TX   FIRE DEPT/RESCUE

            REPORTS OF POWER FLASHES

&&

EVENT NUMBER LUB2100434

JGD
Special weather statement, Jun 28, 10:04 AM CDT, 0 minutes before
Special Weather Statement
National Weather Service Lubbock TX
1004 AM CDT Mon Jun 28 2021

TXZ037-043-281530-
Dickens TX-Kent TX-
1004 AM CDT Mon Jun 28 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN KENT AND SOUTHERN
DICKENS COUNTIES UNTIL 1030 AM CDT...

At 1004 AM CDT, Doppler radar was tracking a strong thunderstorm 6
miles southwest of Spur, moving northeast at 20 mph.

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

Locations impacted include...
Spur.

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.

&&

LAT...LON 3326 10088 3338 10104 3365 10094 3345 10058
TIME...MOT...LOC 1504Z 221DEG 16KT 3338 10090

23

The office that day

Everything else NWS Lubbock, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 27, 8:07 PM CDTAreal Flood AdvisoryLUBFloyd, Hale, Motley83 min
Jun 27, 8:41 PM CDTSpecial Weather StatementLUBHockley34 min
Jun 27, 8:51 PM CDTTornado WarningLUBHockley24 min
Jun 27, 9:20 PM CDTSpecial Weather StatementLUBHockley25 min
Jun 27, 9:30 PM CDTSpecial Weather StatementLUBLamb30 min
Jun 27, 9:32 PM CDTAreal Flood AdvisoryLUBBriscoe, Castro, Cottle, Floyd, Hale, Hall and 3 more88 min
Jun 27, 10:35 PM CDTSpecial Weather StatementLUBHockley25 min
Jun 27, 11:08 PM CDTAreal Flood AdvisoryLUBHale, Lamb2 hr
Jun 28, 7:41 AM CDTAreal Flood AdvisoryLUBGarza, Lynn2 hr
Jun 28, 8:27 AM CDTFlash Flood WarningLUBGarza, Kent2 hr
Jun 28, 8:33 AM CDTAreal Flood AdvisoryLUBChildress, Cottle, Hall, Motley43 min
Jun 28, 9:18 AM CDTFlash Flood WatchLUBBriscoe, Childress, Cottle, Crosby, Dickens, Floyd and 6 more12 hr
Jun 28, 10:00 AM CDTFlash Flood WarningLUBCrosby, Dickens, Garza, Kent81 min
Jun 28, 10:57 AM CDTAreal Flood AdvisoryLUBCrosby, Dickens, Floyd, Motley26 min
Jun 28, 11:19 AM CDTFlash Flood WarningLUBCrosby, Dickens, Floyd, Garza, Kent, Motley3 hr
Jun 28, 12:13 PM CDTRiver Flood AdvisoryLUBGarza25 hr
Jun 28, 2:20 PM CDTAreal Flood AdvisoryLUBDickens, Kent, King, Stonewall3 hr

Nearby

Special Weather Statements in Texas, 2021Every special weather statement in 2021

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.