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Volcano earthquake report for Wednesday, 16 September 2026
• Strong mag. 5.1 earthquake - New Britain Region, Papua New Guinea, on Wedne...
• World Earthquake Report for Wednesday, 16 September 2026
• Strong mag. 5.0 earthquake - Departamento del Choco, 86 km west of La Union...
• Strong mag. 5.1 earthquake - Hawke's Bay, New Zealand, on Thursday, Sep 17,...
• M 1.6 - 17 km SW of Petersville, Alaska
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SPC MD 2302
Webmaster
Yesterday at 09:15 PM
SPC MD 2302MD 2302 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR EAST-CENTRAL INDIANA INTO CENTRAL OHIO 
Mesoscale Discussion 2302
NWS Storm Prediction Center Norman OK
0246 PM CDT Wed Sep 16 2026
Areas affected...east-central Indiana into central Ohio
Concerning...Severe potential...Watch unlikely
Valid 161946Z - 162145Z
Probability of Watch Issuance...5 percent
SUMMARY...Isolated gusty winds of 45-60 mph will be possible with
stronger thunderstorms developing through early evening. Overall
risk is expected to remain limited, and a severe thunderstorm watch
is not expected.
DISCUSSION...Isolated thunderstorms are developing near the IN/OH
state border this afternoon. This activity is developing ahead of a
stalled front and on the southern periphery of stronger effective
shear located north of this boundary. Stronger heating across
east-central IN into central OH has allowed temperatures to warm
into the 80s to near 90 F amid mid 70s F dewpoints, resulting in
moderate instability. Effective shear magnitudes around 20-30 kt may
allow for some storm organization. However, weak midlevel lapse
rates will limit longevity of any stronger/better organized
updrafts. Nevertheless, steepened low-level lapse rates and high PW
values could support sporadic strong outflow wind gusts. Overall,
the risk is expected to remain limited and mostly sub-severe wind
gusts are anticipated, precluding watch issuance.
..Leitman/Hart.. 09/16/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...PBZ...RLX...CLE...ILN...IWX...IND...
LAT...LON 40178559 40798440 40878292 40458191 40008182 39698200
39448292 39368434 39548533 39888566 40178559
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
Read morehttps://www.spc.noaa.gov/products/md/md2302.html
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SPC MD 2303
Webmaster
Yesterday at 09:15 PM
SPC MD 2303MD 2303 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR PORTIONS OF NORTHEASTERN UTAH 
Mesoscale Discussion 2303
NWS Storm Prediction Center Norman OK
0353 PM CDT Wed Sep 16 2026
Areas affected...portions of northeastern Utah
Concerning...Severe potential...Watch unlikely
Valid 162053Z - 162300Z
Probability of Watch Issuance...20 percent
SUMMARY...Isolated to widely scattered thunderstorms will bring a
chance for occasional large hail and damaging wind gusts. Watch
issuance is unlikely.
DISCUSSION...Regional radar imagery depicts a developing supercell
across portions of central/northeastern Utah. While available
buoyancy remains relatively modest (generally 500-1000 J/kg MLCAPE),
strong upper-level flow is contributing to effective shear of 40-50
kts, which will continue to support a supercellular storm mode as
convection evolves eastward through this evening. The primary risk
with this activity will be large hail owing to elongated, relatively
straight hodographs; however, mid-level lapse rates remain somewhat
modest (around 7 C/km), which should temper the overall magnitude of
the large hail threat. Isolated damaging/severe wind gusts are also
possible, especially with any stronger downdrafts and/or evolving
clusters. The overall magnitude and spatial extent of the severe
risk are expected to remain too limited to warrant watch issuance,
however.
..Chalmers/Thompson.. 09/16/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...GJT...SLC...
LAT...LON 39121136 39221161 39451177 39661184 40031177 40361117
40461010 40370944 40150916 39830909 39540918 39340951
39191018 39121136
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
Read morehttps://www.spc.noaa.gov/products/md/md2303.html
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