320 PM EST Wed Feb 22 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Southwest winds 15 to 25 mph with gusts to 45 to 50 mph expected. * WHERE...Portions of central, east central, south central, southeast, southwest and west central Indiana. * WHEN...Until 10 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Any shower or thunderstorm that develops this evening will have the potential to produce even stronger wind gusts of up to 60 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects.
Who want to go Bryan Park and fly a kite with me?
Storm chasers are setting up in Salem, Indiana for tomorrow
For the record, the National Weather Service has not issued a Tornado Watch for tomorrow. It has not issued a Severe Storm Watch either. Nonetheless, storm chasers are setting up shop just to see what they can see. I would like to go but I have to work tomorrow. The image below is a computer sounding model for a random area in southeastern Indiana. See the possible hazard type.
Get ready for a wild ride over the next 48 hours!
A high of nearly 70 degrees today with 20MPH winds. Rain and thunderstorms tomorrow with a high of 63 degrees. Tomorrow night's low will be 27 degrees.
There is a very slight risk of tornadoes in the southeastern part of Indiana for Thursday evening. Cold fronts and warm fronts don't get along well together. Because of that (70 degrees to 27 degrees) you get severe weather. Here is what the National Weather Service thinks:
Area Forecast Discussion National Weather Service Indianapolis IN 929 AM EST Wed Feb 15 2023 .Forecast Update... Issued at 929 AM EST Wed Feb 15 2023 Little changes made to the forecast for the morning update. Current surface analysis shows a strong area of low pressure near Marquette, MI with a front extending southwest toward Missouri. Tight gradient in the warm sector of the low combined with a strong low level jet to 60 kts about 1 km agl has resulted in gusty winds through the morning hours across Central Indiana. Highest wind gusts so far have been around 45 kts, with the strongest gusts across the north and eastern portions of Indiana. Strongest winds within the low level jet are currently moving off to the northeast, so expect a slow diminishing trend in wind gusts through the rest of the morning hours and into the afternoon. Current IND ACARS sounding shows a mixed layer up to about 1 km with steep low level lapse rates below it. Despite weakening winds aloft, expect mixing to continue through the day resulting in continued gusty winds to 20 to 35 mph into the afternoon hours. Will let the Wind Advisory expire at 10 AM as wind gusts over 45 mph will likely be infrequent going into the afternoon. Mixing heights are reaching into an extremely dry layer aloft, so expect RH values to plummet this afternoon as temperatures rise and dew points fall. Will be going well below guidance for dew points during peak heating of the day. Despite drier air aloft, fire weather concerns remain low due to RH values still in the 40s and 50s. High temperatures will likely be above guidance in this set up into the 60s. Would not be surprised to see a few locations reach 70 for the first time this year across South Central Indiana! && .Short Term...(Today Through Thursday) Issued at 152 AM EST Wed Feb 15 2023 ...GUSTY WINDS THROUGH MID-MORNING, STRONG TO SEVERE STORMS THURSDAY... Today. Focus for today will be the exiting low pressure system that brought rain to the area Tuesday evening and then the gusty winds through the overnight hours. For thoughts on the gusty winds through 15Z, see the mesoscale discussion above. The LLJ will gradually begin to relax after 15Z through the daytime hours as the first low pressure system continues to push into Southern Canada and the pressure gradients loosen. Expect that gusts up to 30 mph will continue through the early afternoon hours. Skies will generally clear by mid morning with the loss of moisture aloft, but a few lingering areas of clouds may continue into the late morning across the northwestern counties. Temperatures should have no problem rapidly warming into the low to mid 60s for much of the area with the potential for a few areas up to 70 degrees across the south. Tonight. A second and more potent system then looks to follow a somewhat similar path Wednesday night into Thursday with a much more robust area of forcing to the south compared to the Tuesday night system. Surface winds will briefly become northerly during the early overnight hours ahead of this system which will end the WAA and allow for a quick drop into the upper 30s to mid 40s before the southerly flow returns. A warm front associated with the aforementioned low pressure system will push into the southern counties by around 09Z with periods of light to moderate rain before the potential for strong to severe storms during the afternoon hours tomorrow with southeastern Indiana within the warm sector. Thursday. By 12Z Thursday, the surface low will be centered over southern Illinois and will track across the I-70 corridor while gradually strengthening through the afternoon hours. A brief window for strong to severe storms is possible starting initially in the southwestern counties between 15Z and 18Z and then across the southeastern counties between 18Z and 22Z. Storm motion will be quick with speeds of 50-60mph likely. Models are coming much closer in alignment for the severe potential with around 50-70kts of effective bulk shear, 400-700 J/kg of CAPE, and 200-300 m^2/s^2 of 0-1km helicity. Current thoughts are in the timeframes that were previously mentioned that isolated to scattered discrete cells will push through with the potential for damaging winds as the primary threat as well as a non-zero hail and tornado threat. SPC has placed portions of the area in an Enhanced Risk which seems a little bullish based on the marginal thermal profile. South central Indiana will be on the far northern edge of the severe threat with much more favorable conditions south and east of the forecast area. Areas north of I-69 will generally be north of the warm front with a lack of good moisture flow, so only expect showers and a few rumbles of thunder. In addition to the severe threat, gradient winds up to 40 mph are likely at times through the afternoon hours with mixing down of the LLJ winds aloft. Quiet conditions will then arrive by the evening hours as the storms push through Ohio. && .Long Term...(Thursday Night Through Tuesday) Issued at 152 AM EST Wed Feb 15 2023 Thursday Night Through Sunday. A quick blast of colder air arrives Thursday night, but even that is just dropping temperatures to what is normal for this time of the year. Northwesterly wind gusts to 25 mph will bring wind chills into the upper single digits to low teens Friday morning, but by late Friday night flow will return to the south with warmer air building in for the weekend. Temperatures will warm into the mid 40s Saturday and then the low to mid 50s on Sunday with plenty of sun each day. A very subtle mid level wave will bring some cirrus to the area Saturday night, but no impacts are expected otherwise. Monday and Tuesday. The pattern then begins to become more active early next week as a frontal system moves through the area. There remains a fair amount of uncertainty as to how much forcing and moisture will be available along with the broader synoptic pattern, but think that a period of rain is likely between late Monday and Tuesday. The warmer than normal pattern that has been in place through much of the month will continue through early next week before cooling down to near normal towards Wednesday.
Winter is not over, just on hold and also, hold on to your hat!
The rollercoaster never ends! 40MPH winds, 1-2 inches of rain, thunderstorms tonight and tomorrow with a high of 60 degrees followed by near-freezing temperatures tomorrow night.
So where is winter? It's in Canada and in the north pole until about February 26th and then it will start to pay us a visit again.
There are hints of a snowstorm around March 5th. #BOTS!
Do you want to see the rollercoaster? Here are 768 hours of it, or about 32 days. It's not precise but you'll get the point.
Here is what the National Weather Service out of Indianapolis is thinking:
Short Term...(Today and tonight)
Issued at 342 AM EST Wed Feb 8 2023 Much of the day today will be calm as surface high pressure makes it`s way through central Indiana. Winds this morning will be light and variable as a result with partly cloudy skies to start off the day. High temperatures today are expected to reach the upper 40s to the low 50s. A deepening low pressure system with a developing LLJ of 60-70 kts will be moving into the region from the SW through the day. It will bring with it rain, thunderstorms, and gusty winds both non- thunderstorm and within the storms. The models look to be in good general agreement on the placement of the low tracking just to the east and then north of the forecast area, placing central Indiana in the warm moist sector. Chances for rain will begin in our far SW this afternoon, overspreading the whole area by the late evening hours. As the associated warm front moves through, look to see temperatures warm overnight and approaching 60 degrees by daybreak. Non-thunderstorm winds will also be increasing through the night. Expect gusts to increase above 20 mph after 8pm and then to increase to 30 to 45 mph from midnight to daybreak Thursday. Within individual thunderstorms, there could be isolated gusts higher than 45 mph after midnight as winds mix down. Within this system, expect ample moisture transport supported by the LLJ and leading to QPF values from three-quarters to 1.25 inches with locally higher amounts possible. && .Long Term...(Thursday through Tuesday) Issued at 342 AM EST Wed Feb 8 2023 ...HIGH WIND WATCH THURSDAY... ...WINDY/RAINY THURSDAY... Thursday... Models in great agreement that an occluded system/stacked low will be over west central Illinois Thursday morning and move across Lake Michigan, lower Michigan and to northern Lake Huron by Thursday evening. Warm conveyor belt moisture will be near and northeast of Interstate 65 Thursday morning and quickly move northeast of the area during the afternoon along with the occluded front. Thus, will start the day off with widespread rain near and northeast of the I- 65 corridor with residual chance PoPs southeast as a buffer. Elevated instability within the warm conveyor belt supports thunder mention, while strong pressure gradient lends good confidence to non-thunderstorm wind gusts greater than 45 mph. After inter-office coordination, will issue a Wind Advisory over our southern tier and keep the current Watch in place further north from 12z-00z and expand it one tier south. With the low level jet nosing into south central Indiana, will start the Advisory at 09z In addition to the wind threat, localized flooding may be ongoing from the previous night`s rain with storm total rainfall in excess of an inch over most of central Indiana based on the combination of strong synoptic lift, deep moisture and elevated instability. That said, moisture and lift associated with a TROWAL should remain far enough north of the area for any wraparound with central Indiana entrenched in the dry conveyor belt in the wake of the occluded front. Temperatures will start off very mild for this time of year but quickly fall during the afternoon with a result of well above normal and early day highs in the 50s to lower 60s but readings falling through the 40s during the afternoon. Thursday night... As the occluded system moves well northeast of central Indiana, a weak ridge will pass across from the southwest Thursday night and combined with some drying of the column per BUFKIT soundings will result in a dry Thursday night with west winds, albeit it weakening, bringing back colder yet still above normal temperatures with overnight lows in the 30s. Friday and Friday Night... Broad upper trough will slide southeast across the Great Lakes and Ohio Valley. However, an embedded southwest upper low will result in an non-phased system and in lack of Gulf inflow. Thus, kept only small Pops in for Friday. Modest north winds around a Plains and Missouri Valley surface ridge will only allow temperatures to climb a few degrees with slightly above normal highs in the upper 30s NW to middle 40s SE. Meanwhile, overnight lows will fall back below freezing to the middle and upper 20s with the N winds continuing and some clearing as the ridge gets closer and column dries out per BUFKIT soundings. Rest of the weekend... Ridging and will remain over the region through the weekend and BUFKIT is indicating a dry column. This will result in little cloud cover but with northeast winds, seasonable temperatures Saturday. As the high moves by, the winds will shift to the southwest and albeit less than 10 knots, help raise the temperatures to well above normal with afternoon highs in the 40s Sunday. Monday through Tuesday night... An upper wave will move across the Great Lakes Monday but with moisture lacking, supply no more than increasing cloud cover. However, Tuesday into Tuesday night, a strong southern system will tap into the Gulf and pivot northeast across the Missouri and Wabash Valleys Tuesday and Tuesday night. This system has the potential for more widespread rain along with mild temperatures. Stay tuned.
Cold and dry for the rest of this week.
.Long Term...(Thursday through Tuesday) Issued at 244 AM EST Wed Feb 1 2023 - Dry and cold Thursday and Friday - Dry and warmer weather Saturday through Monday - Precipitation chances return Tuesday Thursday and Friday... There is high confidence that groundhogs across Central Indiana will see their shadows on the morning of February 2nd. We also have high confidence that meteorological spring will arrive on March 1st and astronomical Spring will arrive on March 20th. Models show a large, elongated area of high pressure that will stretch from the middle Atlantic States across KY to the southern plains. As forecast soundings indicate a dry column, sunshine is expected on Thursday morning allowing all kinds of creatures to see their shadows. Models do show a weak cold front over the Great Lakes on Thursday morning, connected to low pressure well to the north, near Hudson Bay. Through this time, a southern branch of the jet stream aloft will remain over the deep south, keeping any forcing dynamics well south of Indiana. This along with the blocking surface high will prevent moisture from arriving across Central Indiana as this cold front passes on Thursday afternoon. Some high and mid clouds cannot be ruled out along the front, so partly cloudy by afternoon and evening should work well. Moderate cold air advection arrives on Thursday Night and Friday as a new area of arctic high pressure begins to build across the Ohio Valley. Strong high pressure will develop across our area on Friday as strong ridging aloft builds across the Rockies, while a deep upper low resides over Quebec. This will result in subsidence and NW flow across the upper midwest spilling into Indiana through Friday night. Highs on Friday will once again be below normal and only reach the 20s. Saturday through Monday... Models show the ridging within the upper flow breaking down on Saturday as a short wave begins to push through the plains states. This wave is suggested to push into the Ohio Valley on Sunday as another quick moving and poorly organized cold front quickly drops south across Indiana from the upper midwest. Caveat here is moisture. The lower levels shows that Friday`s surface high will be well southeast of Indiana on Saturday and Sunday, allowing the return of moisture on southerly return flow. Forecast soundings at this point fail to show deep moisture present but do show some lower level saturation with the frontal passage. Pwats remain low. Thus although some very light precipitation may be possible, confidence remains low at this point. Will trend toward some clouds on Sunday in the wake of the front. Forecast soundings show drying and subsidence Sunday Night and Monday as ridging builds aloft and surface high pressure is suggested to push across the Great Lakes and Ohio Valley. Thus will continue with dry weather on Monday. Tuesday... The next best chance for precipitation will be on Tuesday. The quick moving ridge and surface high is depicted to push east as a stronger short wave aloft is shown to push out of the plains and into the Ohio Valley. Ample forcing is suggested to be present aloft, as a well organized surface low and cold front approach central Indiana, which will be in the warm sector. Thus with these favorable ingredients at this juncture, we will continue to include chances for rain along with warm temperatures on Tuesday.