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6 years ago
Day 4-8 Outlook
Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0358 AM CDT Tue Aug 27 2019
Valid 301200Z - 041200Z
...DISCUSSION...
...Days 4/5 - Fri/Sat -- Central and Southern Plains Vicinity...
At least some potential for strong to severe storms appears possible
heading into the weekend as a stalled cold front in the vicinity of
southern NE/northern KS progresses southward as an upper shortwave
impulse shifts southeast across the northern Plains and Upper
Midwest. Southerly low level flow will continue to bring rich Gulf
moisture northward across the southern/central Plains. At this time,
aside from the surface boundary, forcing for ascent appears weak as
does forecast shear. Guidance also varies in location/timing and
extent of convection. As a result, uncertainty is too great to
include severe probabilities at this time.
...Days 5/6 - Saturday/Sunday -- Southeastern U.S...
By late Saturday into Sunday, some guidance brings current Tropical
Storm Dorian toward Florida. Depending on the exact track, this
could bring an attendant tropical cyclone tornado threat to portions
of the southeastern U.S. Trends will be monitored closely along with
future collaboration with the National Hurricane Center to address
any possible threats approaching the mainland U.S. in the coming
days.
...Days 7/8 - Monday/Tuesday -- Northern/Central Plains to the Upper
Midwest...
By the end of the period, forecast guidance brings a shortwave
trough across the northern Rockies toward the northern Plains. A
strengthening lee surface low over the northern High Plains and
attendant cold front will shift east/southeast and could be a focus
for severe potential early next week. Questions remain regarding
moisture return this far north as well as timing differences in the
arrival of the trough and surface cold front. As such, confidence is
too low to introduce severe probabilities.
Read more
6 years ago
Day 4-8 Outlook
Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0358 AM CDT Tue Aug 27 2019
Valid 301200Z - 041200Z
...DISCUSSION...
...Days 4/5 - Fri/Sat -- Central and Southern Plains Vicinity...
At least some potential for strong to severe storms appears possible
heading into the weekend as a stalled cold front in the vicinity of
southern NE/northern KS progresses southward as an upper shortwave
impulse shifts southeast across the northern Plains and Upper
Midwest. Southerly low level flow will continue to bring rich Gulf
moisture northward across the southern/central Plains. At this time,
aside from the surface boundary, forcing for ascent appears weak as
does forecast shear. Guidance also varies in location/timing and
extent of convection. As a result, uncertainty is too great to
include severe probabilities at this time.
...Days 5/6 - Saturday/Sunday -- Southeastern U.S...
By late Saturday into Sunday, some guidance brings current Tropical
Storm Dorian toward Florida. Depending on the exact track, this
could bring an attendant tropical cyclone tornado threat to portions
of the southeastern U.S. Trends will be monitored closely along with
future collaboration with the National Hurricane Center to address
any possible threats approaching the mainland U.S. in the coming
days.
...Days 7/8 - Monday/Tuesday -- Northern/Central Plains to the Upper
Midwest...
By the end of the period, forecast guidance brings a shortwave
trough across the northern Rockies toward the northern Plains. A
strengthening lee surface low over the northern High Plains and
attendant cold front will shift east/southeast and could be a focus
for severe potential early next week. Questions remain regarding
moisture return this far north as well as timing differences in the
arrival of the trough and surface cold front. As such, confidence is
too low to introduce severe probabilities.
Read more
6 years ago
Day 4-8 Outlook
Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0358 AM CDT Tue Aug 27 2019
Valid 301200Z - 041200Z
...DISCUSSION...
...Days 4/5 - Fri/Sat -- Central and Southern Plains Vicinity...
At least some potential for strong to severe storms appears possible
heading into the weekend as a stalled cold front in the vicinity of
southern NE/northern KS progresses southward as an upper shortwave
impulse shifts southeast across the northern Plains and Upper
Midwest. Southerly low level flow will continue to bring rich Gulf
moisture northward across the southern/central Plains. At this time,
aside from the surface boundary, forcing for ascent appears weak as
does forecast shear. Guidance also varies in location/timing and
extent of convection. As a result, uncertainty is too great to
include severe probabilities at this time.
...Days 5/6 - Saturday/Sunday -- Southeastern U.S...
By late Saturday into Sunday, some guidance brings current Tropical
Storm Dorian toward Florida. Depending on the exact track, this
could bring an attendant tropical cyclone tornado threat to portions
of the southeastern U.S. Trends will be monitored closely along with
future collaboration with the National Hurricane Center to address
any possible threats approaching the mainland U.S. in the coming
days.
...Days 7/8 - Monday/Tuesday -- Northern/Central Plains to the Upper
Midwest...
By the end of the period, forecast guidance brings a shortwave
trough across the northern Rockies toward the northern Plains. A
strengthening lee surface low over the northern High Plains and
attendant cold front will shift east/southeast and could be a focus
for severe potential early next week. Questions remain regarding
moisture return this far north as well as timing differences in the
arrival of the trough and surface cold front. As such, confidence is
too low to introduce severe probabilities.
Read more
6 years ago
Day 4-8 Outlook
Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0358 AM CDT Tue Aug 27 2019
Valid 301200Z - 041200Z
...DISCUSSION...
...Days 4/5 - Fri/Sat -- Central and Southern Plains Vicinity...
At least some potential for strong to severe storms appears possible
heading into the weekend as a stalled cold front in the vicinity of
southern NE/northern KS progresses southward as an upper shortwave
impulse shifts southeast across the northern Plains and Upper
Midwest. Southerly low level flow will continue to bring rich Gulf
moisture northward across the southern/central Plains. At this time,
aside from the surface boundary, forcing for ascent appears weak as
does forecast shear. Guidance also varies in location/timing and
extent of convection. As a result, uncertainty is too great to
include severe probabilities at this time.
...Days 5/6 - Saturday/Sunday -- Southeastern U.S...
By late Saturday into Sunday, some guidance brings current Tropical
Storm Dorian toward Florida. Depending on the exact track, this
could bring an attendant tropical cyclone tornado threat to portions
of the southeastern U.S. Trends will be monitored closely along with
future collaboration with the National Hurricane Center to address
any possible threats approaching the mainland U.S. in the coming
days.
...Days 7/8 - Monday/Tuesday -- Northern/Central Plains to the Upper
Midwest...
By the end of the period, forecast guidance brings a shortwave
trough across the northern Rockies toward the northern Plains. A
strengthening lee surface low over the northern High Plains and
attendant cold front will shift east/southeast and could be a focus
for severe potential early next week. Questions remain regarding
moisture return this far north as well as timing differences in the
arrival of the trough and surface cold front. As such, confidence is
too low to introduce severe probabilities.
Read more
6 years ago
Day 4-8 Outlook
Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0358 AM CDT Tue Aug 27 2019
Valid 301200Z - 041200Z
...DISCUSSION...
...Days 4/5 - Fri/Sat -- Central and Southern Plains Vicinity...
At least some potential for strong to severe storms appears possible
heading into the weekend as a stalled cold front in the vicinity of
southern NE/northern KS progresses southward as an upper shortwave
impulse shifts southeast across the northern Plains and Upper
Midwest. Southerly low level flow will continue to bring rich Gulf
moisture northward across the southern/central Plains. At this time,
aside from the surface boundary, forcing for ascent appears weak as
does forecast shear. Guidance also varies in location/timing and
extent of convection. As a result, uncertainty is too great to
include severe probabilities at this time.
...Days 5/6 - Saturday/Sunday -- Southeastern U.S...
By late Saturday into Sunday, some guidance brings current Tropical
Storm Dorian toward Florida. Depending on the exact track, this
could bring an attendant tropical cyclone tornado threat to portions
of the southeastern U.S. Trends will be monitored closely along with
future collaboration with the National Hurricane Center to address
any possible threats approaching the mainland U.S. in the coming
days.
...Days 7/8 - Monday/Tuesday -- Northern/Central Plains to the Upper
Midwest...
By the end of the period, forecast guidance brings a shortwave
trough across the northern Rockies toward the northern Plains. A
strengthening lee surface low over the northern High Plains and
attendant cold front will shift east/southeast and could be a focus
for severe potential early next week. Questions remain regarding
moisture return this far north as well as timing differences in the
arrival of the trough and surface cold front. As such, confidence is
too low to introduce severe probabilities.
Read more
6 years ago
MD 1879 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR FAR NORTH-CENTRAL TX
Mesoscale Discussion 1879
NWS Storm Prediction Center Norman OK
0355 AM CDT Tue Aug 27 2019
Areas affected...Far North-Central TX
Concerning...Severe potential...Watch unlikely
Valid 270855Z - 271030Z
Probability of Watch Issuance...20 percent
SUMMARY...Isolated damaging wind gusts are possible far
north-central TX but the ongoing storm cluster is expected to
weaken, keeping the threat isolated and precluding the need for a
downstream watch.
DISCUSSION...Recent gusts around 45-50 mph have been reported with
the surging storm cluster across far south-central OK. Current storm
motion on this cluster is south-southeastward at 38 kt. This cluster
is already near the edge of Severe Thunderstorm Watch 625 along the
TX/OK border. Downstream air mass across far north-central TX is
characterized by temperatures in the low to mid 80s, dewpoints in
the low to mid 70s, and strong buoyancy. RAP forecast soundings also
show a deep warm layer and strong convective inhibition. While this
cluster is currently quite strong (with 55 dbz over 30kft), the
strong downstream convective inhibition is expected to lead to
gradual storm weakening. Isolated strong wind gusts are possible
with this cluster but the expected weakening limits the spatial and
temporal extent of this threat. As such, a downstream watch across
far north-central TX is not currently anticipated.
..Mosier/Grams.. 08/27/2019
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...FWD...OUN...
LAT...LON 33569834 34039802 34359714 34179641 33749592 33209602
32939615 32669717 32839825 33569834
Read more
6 years ago
WW 0625 Status Updates
STATUS REPORT ON WW 625
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNW OKC
TO 15 SSE OKC TO 50 W MLC TO 5 NNE MLC TO 30 SSE FSM.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION
..MOSIER..08/27/19
ATTN...WFO...LZK...TSA...SGF...OUN...
STATUS REPORT FOR WS 625
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC005-013-015-017-019-029-049-051-061-067-069-077-079-085-087-
095-099-121-123-127-137-270940-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BRYAN CADDO
CANADIAN CARTER COAL
GARVIN GRADY HASKELL
JEFFERSON JOHNSTON LATIMER
LE FLORE LOVE MCCLAIN
MARSHALL MURRAY PITTSBURG
PONTOTOC PUSHMATAHA STEPHENS
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
Read more
6 years ago
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0230 AM CDT Tue Aug 27 2019
Valid 291200Z - 301200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
The probability of severe thunderstorms on Thursday is low, though a
few strong storms are possible across portions of the upper Great
Lakes into the central Plains during the afternoon and overnight
hours.
...Synopsis...
A shortwave trough will migrate across the Great Lakes on Thursday.
This will bring a belt of strong northwest flow across the Upper
Midwest and Great Lakes vicinity. At this surface, moisture will
return northward across the southern/central Plains and Ozarks
toward IA and WI ahead of a cold front. A narrow warm sector will
reside ahead of the front across southern WI into IA and northern
IL. Guidance varies, but at least isolated thunderstorms are
expected to develop by late afternoon or evening across parts of
southern WI, with southward development into IA/IL more uncertain
due to capping concerns and weaker forcing with southward extent.
Thunderstorms will shift eastward into lower MI during the
evening/overnight hours as the front progresses eastward. Additional
development is possible across parts of IL into MO overnight as the
front drops southward. If this occurs, convection would likely be
elevated, limiting severe potential.
Warm advection atop the western, stalled portion of the front across
northern KS into NE also is possible overnight into Friday morning.
However, it is unclear if this convection could pose a severe
threat. While lapse rates are forecast to be steep, storm mode
likely would not favor an elevated large hail threat due to
clusters/line segments being the preferred mode. Overall, severe
potential appear too conditional and/or uncertain to include
probabilities at this time, though some strong storms are possible
across parts of southern WI into lower MI as well as across northern
KS into NE and trends will be monitored for possible upgrades in
subsequent outlooks.
..Leitman.. 08/27/2019
Read more
6 years ago
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0230 AM CDT Tue Aug 27 2019
Valid 291200Z - 301200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
The probability of severe thunderstorms on Thursday is low, though a
few strong storms are possible across portions of the upper Great
Lakes into the central Plains during the afternoon and overnight
hours.
...Synopsis...
A shortwave trough will migrate across the Great Lakes on Thursday.
This will bring a belt of strong northwest flow across the Upper
Midwest and Great Lakes vicinity. At this surface, moisture will
return northward across the southern/central Plains and Ozarks
toward IA and WI ahead of a cold front. A narrow warm sector will
reside ahead of the front across southern WI into IA and northern
IL. Guidance varies, but at least isolated thunderstorms are
expected to develop by late afternoon or evening across parts of
southern WI, with southward development into IA/IL more uncertain
due to capping concerns and weaker forcing with southward extent.
Thunderstorms will shift eastward into lower MI during the
evening/overnight hours as the front progresses eastward. Additional
development is possible across parts of IL into MO overnight as the
front drops southward. If this occurs, convection would likely be
elevated, limiting severe potential.
Warm advection atop the western, stalled portion of the front across
northern KS into NE also is possible overnight into Friday morning.
However, it is unclear if this convection could pose a severe
threat. While lapse rates are forecast to be steep, storm mode
likely would not favor an elevated large hail threat due to
clusters/line segments being the preferred mode. Overall, severe
potential appear too conditional and/or uncertain to include
probabilities at this time, though some strong storms are possible
across parts of southern WI into lower MI as well as across northern
KS into NE and trends will be monitored for possible upgrades in
subsequent outlooks.
..Leitman.. 08/27/2019
Read more
6 years ago
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0230 AM CDT Tue Aug 27 2019
Valid 291200Z - 301200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
The probability of severe thunderstorms on Thursday is low, though a
few strong storms are possible across portions of the upper Great
Lakes into the central Plains during the afternoon and overnight
hours.
...Synopsis...
A shortwave trough will migrate across the Great Lakes on Thursday.
This will bring a belt of strong northwest flow across the Upper
Midwest and Great Lakes vicinity. At this surface, moisture will
return northward across the southern/central Plains and Ozarks
toward IA and WI ahead of a cold front. A narrow warm sector will
reside ahead of the front across southern WI into IA and northern
IL. Guidance varies, but at least isolated thunderstorms are
expected to develop by late afternoon or evening across parts of
southern WI, with southward development into IA/IL more uncertain
due to capping concerns and weaker forcing with southward extent.
Thunderstorms will shift eastward into lower MI during the
evening/overnight hours as the front progresses eastward. Additional
development is possible across parts of IL into MO overnight as the
front drops southward. If this occurs, convection would likely be
elevated, limiting severe potential.
Warm advection atop the western, stalled portion of the front across
northern KS into NE also is possible overnight into Friday morning.
However, it is unclear if this convection could pose a severe
threat. While lapse rates are forecast to be steep, storm mode
likely would not favor an elevated large hail threat due to
clusters/line segments being the preferred mode. Overall, severe
potential appear too conditional and/or uncertain to include
probabilities at this time, though some strong storms are possible
across parts of southern WI into lower MI as well as across northern
KS into NE and trends will be monitored for possible upgrades in
subsequent outlooks.
..Leitman.. 08/27/2019
Read more
6 years ago
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0230 AM CDT Tue Aug 27 2019
Valid 291200Z - 301200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
The probability of severe thunderstorms on Thursday is low, though a
few strong storms are possible across portions of the upper Great
Lakes into the central Plains during the afternoon and overnight
hours.
...Synopsis...
A shortwave trough will migrate across the Great Lakes on Thursday.
This will bring a belt of strong northwest flow across the Upper
Midwest and Great Lakes vicinity. At this surface, moisture will
return northward across the southern/central Plains and Ozarks
toward IA and WI ahead of a cold front. A narrow warm sector will
reside ahead of the front across southern WI into IA and northern
IL. Guidance varies, but at least isolated thunderstorms are
expected to develop by late afternoon or evening across parts of
southern WI, with southward development into IA/IL more uncertain
due to capping concerns and weaker forcing with southward extent.
Thunderstorms will shift eastward into lower MI during the
evening/overnight hours as the front progresses eastward. Additional
development is possible across parts of IL into MO overnight as the
front drops southward. If this occurs, convection would likely be
elevated, limiting severe potential.
Warm advection atop the western, stalled portion of the front across
northern KS into NE also is possible overnight into Friday morning.
However, it is unclear if this convection could pose a severe
threat. While lapse rates are forecast to be steep, storm mode
likely would not favor an elevated large hail threat due to
clusters/line segments being the preferred mode. Overall, severe
potential appear too conditional and/or uncertain to include
probabilities at this time, though some strong storms are possible
across parts of southern WI into lower MI as well as across northern
KS into NE and trends will be monitored for possible upgrades in
subsequent outlooks.
..Leitman.. 08/27/2019
Read more
6 years ago
MD 1878 CONCERNING SEVERE THUNDERSTORM WATCH 625... FOR CENTRAL/WESTERN OK...FAR NORTHWEST TX
Mesoscale Discussion 1878
NWS Storm Prediction Center Norman OK
0215 AM CDT Tue Aug 27 2019
Areas affected...Central/Western OK...Far Northwest TX
Concerning...Severe Thunderstorm Watch 625...
Valid 270715Z - 270815Z
The severe weather threat for Severe Thunderstorm Watch 625
continues.
SUMMARY...Strong wind gusts and isolated large hail remain possible
across western and central OK.
DISCUSSION...Outflow boundary from earlier thunderstorms has pushed
into far northwest TX/far north TX. Isentropic ascent driven by
strong low-level jet from southwest TX into far southwest OK across
this boundary continues to force new thunderstorm development across
central and western OK. These storms, which are initially elevated,
have quickly develop a cold pool and are now surging southward.
Continued southward progress is anticipated for the next few hours
Strong wind gusts are the primary severe threat although large hail
is also possible with any new updrafts or as a result of updraft
intensification due to storm mergers.
..Mosier.. 08/27/2019
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...TSA...FWD...OUN...
LAT...LON 35859892 35859805 35629741 34899618 34319571 33869669
33699822 33889881 35089905 35859892
Read more
6 years ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0208 AM CDT Tue Aug 27 2019
Valid 281200Z - 291200Z
...Synopsis...
The upper-level ridge across the western CONUS will slowly shift
eastward during the D2/Wednesday period. A slight breakdown of the
ridge is forecast to occur as a weak shortwave trough approaches the
Pacific Northwest. Moisture influx into the Intermountain West from
a remnant tropical system as well as the Monsoon will support
thunderstorm development over a broad area. The main areas of
concern will be across portions of northwest Arizona into the
central Great Basin, northern California, and much of
western/central Oregon. PWAT values around 0.8 inches and relatively
slow storm motions will mean potential for some wetting rainfall.
However, fuels have cured with recent hot/dry conditions which will
support ignitions. Holdover potential will also exist with the
expected return of hot/dry conditions.
..Wendt.. 08/27/2019
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
6 years ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0208 AM CDT Tue Aug 27 2019
Valid 281200Z - 291200Z
...Synopsis...
The upper-level ridge across the western CONUS will slowly shift
eastward during the D2/Wednesday period. A slight breakdown of the
ridge is forecast to occur as a weak shortwave trough approaches the
Pacific Northwest. Moisture influx into the Intermountain West from
a remnant tropical system as well as the Monsoon will support
thunderstorm development over a broad area. The main areas of
concern will be across portions of northwest Arizona into the
central Great Basin, northern California, and much of
western/central Oregon. PWAT values around 0.8 inches and relatively
slow storm motions will mean potential for some wetting rainfall.
However, fuels have cured with recent hot/dry conditions which will
support ignitions. Holdover potential will also exist with the
expected return of hot/dry conditions.
..Wendt.. 08/27/2019
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
6 years ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0208 AM CDT Tue Aug 27 2019
Valid 281200Z - 291200Z
...Synopsis...
The upper-level ridge across the western CONUS will slowly shift
eastward during the D2/Wednesday period. A slight breakdown of the
ridge is forecast to occur as a weak shortwave trough approaches the
Pacific Northwest. Moisture influx into the Intermountain West from
a remnant tropical system as well as the Monsoon will support
thunderstorm development over a broad area. The main areas of
concern will be across portions of northwest Arizona into the
central Great Basin, northern California, and much of
western/central Oregon. PWAT values around 0.8 inches and relatively
slow storm motions will mean potential for some wetting rainfall.
However, fuels have cured with recent hot/dry conditions which will
support ignitions. Holdover potential will also exist with the
expected return of hot/dry conditions.
..Wendt.. 08/27/2019
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
6 years ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0208 AM CDT Tue Aug 27 2019
Valid 281200Z - 291200Z
...Synopsis...
The upper-level ridge across the western CONUS will slowly shift
eastward during the D2/Wednesday period. A slight breakdown of the
ridge is forecast to occur as a weak shortwave trough approaches the
Pacific Northwest. Moisture influx into the Intermountain West from
a remnant tropical system as well as the Monsoon will support
thunderstorm development over a broad area. The main areas of
concern will be across portions of northwest Arizona into the
central Great Basin, northern California, and much of
western/central Oregon. PWAT values around 0.8 inches and relatively
slow storm motions will mean potential for some wetting rainfall.
However, fuels have cured with recent hot/dry conditions which will
support ignitions. Holdover potential will also exist with the
expected return of hot/dry conditions.
..Wendt.. 08/27/2019
...Please see www.spc.noaa.gov/fire for graphic product...
Read more
6 years ago
MD 1877 CONCERNING SEVERE THUNDERSTORM WATCH 625... FOR EAST-CENTRAL OK...WEST-CENTRAL AR
Mesoscale Discussion 1877
NWS Storm Prediction Center Norman OK
0155 AM CDT Tue Aug 27 2019
Areas affected...East-Central OK...West-Central AR
Concerning...Severe Thunderstorm Watch 625...
Valid 270655Z - 270830Z
The severe weather threat for Severe Thunderstorm Watch 625
continues.
SUMMARY...Threat for damaging wind gusts will continue across
east-central OK and west-central AR for the next few hours. A
downstream watch across far southeast OK and southern AR is not
currently anticipated.
DISCUSSION...Radar trends over the past hour or so showed a forward
surge with the convective line across east-central OK/west-central
AR, with storm motion around 40 kt. More recent trends reveal a
slowing of this forward surge, with storm motion now closer to 30-35
kt. Several strong wind gusts were measured recently in east-central
OK, the strongest of which was 43 kt at GZL. Outflow appears to have
outrun much of the deep convection along the central OK/AR,
suggesting the system may be struggling to remain organized.
Downstream air mass is characterized by ample low-level moisture and
strong buoyancy. Strong convective inhibition exists but the
well-developed cold pool will likely continue to force deep
convection. Isolated strong wind gusts will remain possible over the
next hour or two. This line is expected to move out of the watch
around 08Z. Given that strong wind gusts are expected to become
increasingly isolated, a downstream watch is not currently
anticipated.
..Mosier.. 08/27/2019
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...LZK...SHV...TSA...
LAT...LON 34539534 35419517 35789294 35339176 34119220 34099449
34539534
Read more
6 years ago
WW 0625 Status Updates
STATUS REPORT ON WW 625
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNW OKC
TO 40 NW MLC TO 20 ENE MKO TO 5 ENE FYV TO 35 NW POF.
..MOSIER..08/27/19
ATTN...WFO...LZK...TSA...SGF...OUN...
STATUS REPORT FOR WS 625
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-033-047-071-083-087-089-101-115-127-129-131-141-149-
270740-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER CRAWFORD FRANKLIN
JOHNSON LOGAN MADISON
MARION NEWTON POPE
SCOTT SEARCY SEBASTIAN
VAN BUREN YELL
MOC091-149-270740-
MO
. MISSOURI COUNTIES INCLUDED ARE
HOWELL OREGON
OKC001-005-013-015-017-019-027-029-049-051-061-063-067-069-077-
079-085-087-091-095-099-101-121-123-125-127-133-135-137-
270740-
Read more
6 years ago
WW 0625 Status Updates
STATUS REPORT ON WW 625
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNW OKC
TO 40 NW MLC TO 20 ENE MKO TO 5 ENE FYV TO 35 NW POF.
..MOSIER..08/27/19
ATTN...WFO...LZK...TSA...SGF...OUN...
STATUS REPORT FOR WS 625
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-033-047-071-083-087-089-101-115-127-129-131-141-149-
270740-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER CRAWFORD FRANKLIN
JOHNSON LOGAN MADISON
MARION NEWTON POPE
SCOTT SEARCY SEBASTIAN
VAN BUREN YELL
MOC091-149-270740-
MO
. MISSOURI COUNTIES INCLUDED ARE
HOWELL OREGON
OKC001-005-013-015-017-019-027-029-049-051-061-063-067-069-077-
079-085-087-091-095-099-101-121-123-125-127-133-135-137-
270740-
Read more
6 years ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0118 AM CDT Tue Aug 27 2019
Valid 271200Z - 281200Z
...NO CRITICAL AREAS...
...Synopsis...
An upper-level ridge will shift eastward over the West Coast while
amplifying slightly today. Hot/dry conditions are expected much of
the areas west of the Continental Divide. At the surface, high
pressure over the central Rockies/High Plains in combination with a
thermally-driven surface trough along the west coast of Oregon will
drive easterly downslope flow for much of western Oregon. Some
locations may see afternoon RH below 20%, but most areas will likely
fall between 20-35%. Winds will generally be light (10-15 mph).
However, areas near the Columbia Gorge in the northern Willamette
Valley could see terrain enhanced flow of 15+ mph. As the spatial
extent of elevated conditions is expected to remain small, no areas
will be introduced.
A few lightning strikes may occur along and just into the eastern
slopes of the Sierra in central California. There is currently too
much uncertainty as to whether these storms will impact areas
outside of the highest peaks for greater fire weather concerns.
..Wendt.. 08/27/2019
...Please see www.spc.noaa.gov/fire for graphic product...
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Checked
5 years 11 months ago
Storm Prediction Center
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