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PNM 20230824

Updated: Aug 23, 2023

Next update: Unless otherwise stated, the next update will be as soon as critically important or sufficient information becomes available.


Resources:


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Update 3: Wednesday, 23 Aug 2023 (4 pm)

Impact Weather Date: Wednesday (23 Aug) thru Friday (25 Aug)

Timing (arrival): Varies (see weather graph at end)


Summary of potential weather pattern this week:

  • Wednesday: HOT.

  • Thursday: HOT & STORMY.

  • Friday: HOT'ish and maybe STORMY for some.


Updated NWS messaging:

  • Heat will be a concern Wednesday through Friday. The combination of heat and humidity will result in heat headlines through this period.

  • The most widespread potential for heat is forecast on Thursday. However, shower and thunderstorm potential Wednesday night into Thursday morning may affect that heat potential, particularly across parts of northern and eastern Ohio.

  • For Wednesday night into Thursday morning, the potential exists for some showers and thunderstorms. The highest probability will be across northern and eastern Ohio. Some strong to severe storms will be possible with damaging winds and large hail the primary threats. In addition, heavy rain and possible training of storms may occur, particularly over northeast Ohio. This may lead to instances of flash flooding. Confidence in specific timing and coverage is low to medium at this time.

  • Additional showers and storms are forecast for Thursday night. A few strong to severe storms will be possible, mainly north of the Ohio River. Damaging winds and large hail will be the primary threats.

  • A shower and thunderstorm threat exists along and south of I-70 on Friday. However, coverage is expected to be much less, with isolated instances of a strong or severe storm possible.

  • Cooler and drier air is expected to move into the region over the weekend, bringing an end to the hot conditions.


Updated slides (notes provided above slide):


(Potential impacts to Clinton County forecasted to be Thursday):




(Excessive Heat Watch in effect for Clinton County on Thursday from Noon to 9 pm):




(Heat Index for Clinton County today is forecasted to exceed 100F):


(Heat Index for Clinton County forecast appears lower than Wednesday):


(Potential impacts to Clinton County forecasted to be Thursday):

(Potential impacts south of Clinton County [but could slip our direction] forecasted to be Thursday):





Weather Graph Data:

*Data as of 7 am on Wednesday, 23 August 2023


Wednesday to Thursday:



Thursday to Friday:



Friday to Saturday:



Saturday to Sunday:


[END UPDATE 3]


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Update 2: Tuesday, 22 Aug 2023 (4 pm)

Impact Weather Date: Thursday, 24 Aug 2023

Timing (arrival): Afternoon to Evening


Updated NWS messaging:

  • Heat will be the main weather hazard Wednesday through Friday.

  • Heat indices approaching 100F for southeastern IN, northern KY, and southwestern OH on Wednesday afternoon and evening.

  • Highest heat indices areawide on Thursday afternoon and evening between 105 F and 110 F.

  • Heat indices again excessive near and south of I-70 Friday afternoon and evening.

  • Cooler and drier air is expected to move into the region over the weekend, bringing an end to the hot conditions.

  • Confidence in excessive heat potential is high.

Updated slides: