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LOCAL WEATHER CONDITIONS AT
Franklin, Venango Regional Airport

Temperature       0 F / 0 C
Wind Chill        0 F / 0 C
Dew Point         0 F / 0 C
Humidity          0%
Wind Speed        9.2
Wind Direction    NW 320 Degrees Varying 290 to 10
Visibility        10 Miles
Sky Conditions     few at 3800 feet
Current Weather
Barometer         30.07 Inches
Issued At         07/25/2025 16:56

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Untitled Document
ACUS01 KWNS 251959
SWODY1
SPC AC 251957

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0257 PM CDT Fri Jul 25 2025

Valid 252000Z - 261200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE
NORTHEAST AND MID ATLANTIC...PARTS OF THE MID MISSOURI VALLEY...AND
ACROSS THE NORTHERN PLAINS....

...SUMMARY...
Scattered strong to severe thunderstorms remain capable of damaging
wind gusts across parts of New England and the northern Mid-Atlantic
States this afternoon/evening. Severe storms will also be possible
across much of North Dakota as well as eastern Kansas into western
Missouri.

...20z Update Northeast...
Scattered to numerous thunderstorms ongoing ahead of a weak cold
front across the Northeast and northern Mid Atlantic states will
continue to pose a risk for isolated damaging gusts through this
evening. The main focus for storm development/intensification along
the front will continue to shift southeastward this afternoon.
Trimming was done to the MRGL area mainly where the wind shift has
already moved offshore. Otherwise the SLGT risk area was adjusted to
better match the higher storm coverage and threat for damaging
gusts.

...KS/MO...
To the west, scattered severe storms should continue to
develop/intensify this afternoon ahead of an MCV/shortwave trough
across parts of KS and MO. Very moist surface conditions are present
with mid 70s F dewpoints contributing to moderate destabilization
despite weak low and mid-level lapse rates. Enhanced mid-level wind
fields observed by area VADs should support a few stronger storms
including supercells capable of damaging gusts and possibly brief
tornadoes this afternoon and evening.

...Great Basin...
Isolated to scattered high-based thunderstorms remain likely across
northern CA and western NV this evening. Steep low-level lapse rates
will favor dry microburst potential with these storms or any more
persistent clusters of storms able to evolve. Have adjusted the MRGL
risk slightly west to better capture storms developing near the
higher terrain.

Otherwise, see the previous discussion for additional information.

..Lyons.. 07/25/2025

.PREV DISCUSSION... /ISSUED 1142 AM CDT Fri Jul 25 2025/

...Northeast/Mid-Atlantic States...
Midday vapor imagery shows a fast-moving shortwave trough
progressing eastward into Quebec. An associated cold front will move
south-southeastward across New England this afternoon. Relatively
hot/humid conditions ahead of the front will lead to widely
scattered afternoon thunderstorms across southern New England and
eastern portions of New York/Pennsylvania. These storms will track
southeastward toward the coast through the early evening with
damaging winds possible.

...Northern Plains including North Dakota...
An upper ridge remains centered over the central Plains, with a weak
southern-stream trough currently moving across Utah into Wyoming.
Weak lift and increased mid-level moisture ahead of the system will
aid in the development of scattered thunderstorms by late afternoon
across parts of eastern Montana and northeast Wyoming. Thermodynamic
parameters are favorable for large hail in the stronger cells. It
seems that these storms will tend to persist east-northeastward this
evening and pose a risk of hail and locally damaging winds across
North Dakota.

...Eastern Kansas/western Missouri...
Regional WSR-88D VWP data continues to sample modestly enhanced
low/mid-tropospheric flow in relation to a slow-moving MCV, notable
from KEAX where 35-40 kt west-southwesterly flow persists between
3-5 km AGL. With a very moist air mass in place (low to middle 70s F
surface dewpoints), intensifying storms could include supercells
given some likely persistence of the enhanced flow field. Especially
with a convectively reinforced surface boundary, a semi-focused
corridor of damaging winds and brief tornado potential could evolve
this afternoon into early evening.

...Northern California/western Nevada...
Aside from the dry thunderstorm potential (see Fire Weather Day 1
Outlook), sufficient moisture/buoyancy may exist on the eastern and
northern periphery of the slow-moving upper low, where mid-level
temperatures (-12C at 500mb) are semi-cool, to allow for some hail
and/or convectively enhanced wind gusts this afternoon through
around sunset.

$$