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World Earthquake Report for Monday, 10 August 2026
• Volcano earthquake report for Monday, 10 Aug 2026
• Moderate mag. 4.0 earthquake - Zangilan Rayon, 58 km southwest of Ganja, Ga...
• Moderate mag. 4.6 earthquake - 31 km northeast of Xunchang, Sichuan, China,...
• Moderate mag. 4.2 earthquake - New Zealand on Tuesday, Aug 11, 2026, at 06:...
• World Earthquake Report for August 2026
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SPC Severe Thunderstorm Watch 558 Status Reports
Webmaster
Yesterday at 10:56 PM
SPC Severe Thunderstorm Watch 558 Status ReportsWW 0558 Status Updates 
STATUS REPORT ON WW 558
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 WSW AVC
TO 30 NW SBY.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1906
..GLEASON..08/10/26
ATTN...WFO...AKQ...
STATUS REPORT FOR WS 558
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MDC019-039-045-047-110040-
MD
. MARYLAND COUNTIES INCLUDED ARE
DORCHESTER SOMERSET WICOMICO
WORCESTER
VAC001-025-036-041-053-057-073-081-087-093-095-097-101-103-115-
117-119-127-131-133-149-159-175-181-183-199-550-570-595-620-650-
670-700-710-730-735-740-760-800-810-830-110040-
VA
. VIRGINIA COUNTIES INCLUDED ARE
ACCOMACK BRUNSWICK CHARLES CITY
CHESTERFIELD DINWIDDIE ESSEX
GLOUCESTER GREENSVILLE HENRICO
ISLE OF WIGHT JAMES CITY KING AND QUEEN
KING WILLIAM LANCASTER MATHEWS
MECKLENBURG MIDDLESEX NEW KENT
NORTHAMPTON NORTHUMBERLAND PRINCE GEORGE
Read morehttps://www.spc.noaa.gov/products/watch/ws0558.html
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SPC Severe Thunderstorm Watch 558
Webmaster
Yesterday at 10:56 PM
SPC Severe Thunderstorm Watch 558WW 558 SEVERE TSTM MD VA CW 102025Z - 110200Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 558
NWS Storm Prediction Center Norman OK
425 PM EDT Mon Aug 10 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Maryland Eastern Shore
Eastern Virginia
Coastal Waters
* Effective this Monday afternoon and evening from 425 PM until
1000 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
SUMMARY...A line of strong thunderstorms will continue to sag
southeastward across the watch area this afternoon and early
evening. The strongest cells will pose a risk of damaging winds
gusts.
The severe thunderstorm watch area is approximately along and 30
statute miles north and south of a line from 60 miles west of
Richmond VA to 35 miles east of Salisbury MD. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 553...WW 554...WW
555...WW 556...WW 557...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
30030.
...Hart
Read morehttps://www.spc.noaa.gov/products/watch/ww0558.html
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SPC MD 1903
Webmaster
Yesterday at 10:56 PM
SPC MD 1903MD 1903 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR NORTHEAST CO...FAR NORTHWEST KS...AND PORTIONS OF WESTERN NE 
Mesoscale Discussion 1903
NWS Storm Prediction Center Norman OK
0351 PM CDT Mon Aug 10 2026
Areas affected...Northeast CO...far northwest KS...and portions of
western NE
Concerning...Severe potential...Watch possible
Valid 102051Z - 102315Z
Probability of Watch Issuance...60 percent
SUMMARY...The risk of severe wind gusts and hail will increase from
west to east during the next few hours. A watch may be needed
relatively soon for parts of the area.
DISCUSSION...Isolated high-based thunderstorms are evolving along a
lee trough extending from the NE Panhandle southward into
northeastern CO, and storm coverage should continue to increase as a
subtle midlevel wave approaches the area from the west (per recent
WV loops). Over the next few hours, this activity will spread
eastward into a a plume of middle/upper 50s dewpoints and steep
deep-layer lapse rates, which are contributing to a moderately
unstable air mass. This, combined with an elongating and mostly
straight hodograph, should support some convective organization/cell
splitting. While severe hail will be possible (especially in the
earlier stages of convective intensification), the primary concern
will be an increasing risk of severe wind gusts with any clustering
that occurs. A watch may be needed relatively soon for parts of the
area.
..Weinman/Hart.. 08/10/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...LBF...GLD...BOU...CYS...
LAT...LON 39600332 40770330 41620325 42140304 42400259 42430206
42310162 41750126 40630117 39750134 39230174 39130245
39330309 39600332
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
Read morehttps://www.spc.noaa.gov/products/md/md1903.html
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SPC MD 1904
Webmaster
Yesterday at 10:56 PM
SPC MD 1904MD 1904 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR PARTS OF ARIZONA 
Mesoscale Discussion 1904
NWS Storm Prediction Center Norman OK
0454 PM CDT Mon Aug 10 2026
Areas affected...Parts of Arizona
Concerning...Severe potential...Watch possible
Valid 102154Z - 110030Z
Probability of Watch Issuance...40 percent
SUMMARY...A gradual increase in the severe wind threat may occur
this afternoon and evening, with Severe Thunderstorm Watch issuance
possible.
DISCUSSION...A mid/upper-level anticyclone remains anchored over the
Four Corners this afternoon, with modest (around 10-20 kt) easterly
mid-level flow persisting across parts of NM/AZ per recent VWPs from
KEMX. Modifying the 18Z observed sounding from PHX for current
surface conditions shows a very well-mixed boundary layer through
low/mid levels, with around 1600 J/kg of MLCAPE and ample DCAPE as
well. This agrees with latest mesoanalysis estimates, which suggest
around 1000-2000 J/kg of MLCAPE is present across the lower
elevations of southeast/central AZ. Isolated to widely scattered
thunderstorms have recently developed over the Mogollon Rim in
east-central AZ and the higher terrain in southeast AZ. Recent
trends in short-term model guidance remain unclear regarding
potential for this activity to increase in coverage through the
remainder of the afternoon, and whether one or more bowing clusters
eventually develops westward into the lower deserts over the next
few hours. Regardless of this continued uncertainty, the
thermodynamic environment appears favorable for severe gusts if
convection can grow upscale. Watch issuance is possible, and will
largely depend on convective trends.
..Gleason/Mosier.. 08/10/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...TWC...FGZ...PSR...
LAT...LON 31701247 32351199 33181183 33931202 34351168 34181086
33941010 32970944 31240938 31221104 31701247
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
Read morehttps://www.spc.noaa.gov/products/md/md1904.html
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SPC MD 1905
Webmaster
Yesterday at 10:56 PM
SPC MD 1905MD 1905 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR NORTHERN ILLINOIS INTO NORTHERN INDIANA AND WESTERN OHIO 
Mesoscale Discussion 1905
NWS Storm Prediction Center Norman OK
0515 PM CDT Mon Aug 10 2026
Areas affected...Northern Illinois into northern Indiana and western
Ohio
Concerning...Severe potential...Watch possible
Valid 102215Z - 110015Z
Probability of Watch Issuance...60 percent
SUMMARY...Thunderstorm development is anticipated in the coming
hours across northern Indiana and western Ohio. Although timing
remains uncertain based on latest satellite trends, watch issuance
will likely be needed given a favorable convective environment for
severe thunderstorms.
DISCUSSION...Air mass recovery has been ongoing across IN and
western OH in the wake of convection earlier today with temperatures
warming well into the mid to upper 80s and dewpoints increasing into
the mid 70s. This low-level destabilization, combined with eastward
advection of steeper mid-level lapse rates, are supporting a
corridor of extreme buoyancy with MLCAPE values estimated to be
between 4000-5000 J/kg.
Upstream, a subtle mid-level vorticity maximum is noted across
central IL has been supporting weak convection across northern IL
over the past few hours. Additional thunderstorm development appears
likely as ascent associated with this weak disturbance spreads east
towards the buoyancy axis. Although the region remains on the
southern periphery of a 40-50 knot mid-level jet, regional VWPs show
25-30 knot flow between 5-7 km, which is supporting adequate
hodograph elongation for effective bulk shear values on the order of
25-35 knots - sufficient for organized convection, including a few
supercells.
Exact timing of when robust/intense convection develops remains
uncertain with latest GOES imagery showing limited vertical growth
of low-level cumulus. Additionally, recent high-res solutions also
shows disparity regarding the timing of convective initiation.
Regardless, watch issuance will likely be required once thunderstorm
initiation becomes apparent given the favorable convective
environment.
..Moore/Mosier.. 08/10/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...CLE...ILN...IWX...IND...LOT...
LAT...LON 41288866 41488898 41828925 42138914 42288889 42328840
41648446 41508416 41268385 40988378 40198374 39848391
39668419 39658459 41288866
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
Read morehttps://www.spc.noaa.gov/products/md/md1905.html
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SPC MD 1906
Webmaster
Yesterday at 10:56 PM
SPC MD 1906MD 1906 CONCERNING SEVERE THUNDERSTORM WATCH 556...558... FOR PARTS OF SOUTHEAST VA INTO THE DELMARVA PENINSULA AND FAR SOUTHERN NJ 
Mesoscale Discussion 1906
NWS Storm Prediction Center Norman OK
0528 PM CDT Mon Aug 10 2026
Areas affected...Parts of southeast VA into the Delmarva Peninsula
and far southern NJ
Concerning...Severe Thunderstorm Watch 556...558...
Valid 102228Z - 110000Z
The severe weather threat for Severe Thunderstorm Watch 556, 558
continues.
SUMMARY...Scattered damaging winds remain possible this evening with
a line of thunderstorms moving east-southeastward towards the
Atlantic Coast.
DISCUSSION...A well-developed squall line with a history of
producing scattered wind damage across southern/central VA will
continue to track east-southeastward this evening. The airmass ahead
of the line remains moderately unstable, with surface temperatures
generally in the upper 80s to low 90s, and dewpoints in the 70s.
Even though mid-level lapse rates remain modest, daytime heating has
supported steepening of low-level lapse rates. This, coupled with
around 30-40 kt of mid-level west-northwesterlies, will likely
support scattered damaging wind potential with the line for the next
couple of hours as it approaches the Atlantic Coast. A couple of
cells that have developed ahead of the line across far southeast VA
may also pose an isolated risk for severe hail in the short term. A
local extension in area for Severe Thunderstorm Watch 558 may be
needed for the rest of southeast VA based on current trends.
..Gleason.. 08/10/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...PHI...AKQ...LWX...
LAT...LON 36997829 37967733 38767634 39277564 39377526 39267477
39187456 38867470 38097510 37097586 36777628 36667732
36777814 36997829
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
Read morehttps://www.spc.noaa.gov/products/md/md1906.html
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SPC MD 1907
Webmaster
Yesterday at 10:56 PM
SPC MD 1907MD 1907 CONCERNING SEVERE POTENTIAL...WATCH LIKELY FOR WESTERN SOUTH DAKOTA INTO NORTH-CENTRAL NEBRASKA 
Mesoscale Discussion 1907
NWS Storm Prediction Center Norman OK
0539 PM CDT Mon Aug 10 2026
Areas affected...Western South Dakota into north-central Nebraska
Concerning...Severe potential...Watch likely
Valid 102239Z - 110045Z
Probability of Watch Issuance...80 percent
SUMMARY...Thunderstorms developing across western South Dakota may
intensify into a robust MCS in the coming hours. If/when this
occurs, the potential for severe winds will substantially increase
downstream into southern South Dakota and north-central Nebraska.
Watch issuance is probable if convection intensifies as expected.
DISCUSSION...Large-scale ascent continues to spread east across the
central and northern High Plains based on recent GOES imagery with
several clusters of high-based thunderstorms emerging from eastern
MT into eastern WY and CO. More recently, a cluster of high-based
thunderstorms has developed across far western SD in proximity to
the western fringe of a moist plume that extends from the central
Plains into western SD around a weak surface low analyzed south of
the Black Hills. Over time, this convection should intensify as it
continues to spread east into the moist air mass where MLCAPE
rapidly increases into the 3000-4500 J/kg range.
Additionally, the combination of southeasterly low-level winds to
the north of the low with 30-40 knot mid-level flow aloft is
supporting around 40-50 knots of effective bulk shear across the
warm sector. This will likely promote organization of deepening
convection over the next few hours - most likely into an MCS as cold
pools continue to amalgamate and deepen. If an MCS emerges, the
downstream environment will likely support severe gusts as high as
65-80 mph, and potentially a few embedded circulations given strong
westerly low-level shear.
Most high-res solutions over the past several hours have depicted
some form of an MCS emerging out of the Dakotas this evening, though
considerable spread is noted on precisely when and where such an MCS
will emerge. Based on these observed trends, this cluster may
develop into the anticipated MCS. Trends will continue to be
monitored, and watch issuance will likely be required if the cluster
continues to intensify.
..Moore/Mosier.. 08/10/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...FSD...ABR...LBF...UNR...CYS...
LAT...LON 42350100 43390398 43660419 44160422 44430415 44640385
44700351 44349913 43859875 43259880 42839910 42539963
42360032 42350100
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
Read morehttps://www.spc.noaa.gov/products/md/md1907.html
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SPC Severe Thunderstorm Watch 556 Status Reports
Webmaster
Yesterday at 10:52 PM
SPC Severe Thunderstorm Watch 556 Status ReportsWW 0556 Status Updates 
STATUS REPORT ON WW 556
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NE NHK TO
15 SE DOV TO 25 E DOV TO 25 SSE ACY.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1906
..GLEASON..08/10/26
ATTN...WFO...PHI...OKX...
STATUS REPORT FOR WS 556
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
DEC005-102340-
DE
. DELAWARE COUNTIES INCLUDED ARE
SUSSEX
NJC009-102340-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
CAPE MAY
ANZ431-453-454-455-102340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
Read morehttps://www.spc.noaa.gov/products/watch/ws0556.html
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SPC Severe Thunderstorm Watch 556
Webmaster
Yesterday at 10:52 PM
SPC Severe Thunderstorm Watch 556WW 556 SEVERE TSTM DE MD NJ NY PA CW 101810Z - 110100Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 556
NWS Storm Prediction Center Norman OK
210 PM EDT Mon Aug 10 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Delaware
Eastern Maryland
New Jersey
Southeast New York
Eastern Pennsylvania
Coastal Waters
* Effective this Monday afternoon and evening from 210 PM until
900 PM EDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...Lines and clusters of thunderstorms over central
Pennsylvania will track eastward across the watch area this
afternoon and early evening. Damaging winds may accompany the
stronger storms.
The severe thunderstorm watch area is approximately along and 40
statute miles east and west of a line from 55 miles north northwest
of Newark NJ to 40 miles south of Dover DE. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU6).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 552...WW 553...WW
554...WW 555...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 65 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
27030.
...Hart
Read morehttps://www.spc.noaa.gov/products/watch/ww0556.html
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