Determining hail size - WRCBtv.com | Chattanooga News, Weather & Sports

Determining hail size

When hail storms hit, many of us refer to common objects to size the hail pellets. The National Weather Service has created the following size estimator to help understand the size relationship between common objects and hail. 

As part of this exercise, the NWS encourage actual measurement of the hail stones, not estimation, to determine hail size.

HAIL SIZE (in.)

OBJECT ANALOGY REPORTED

.50

Marble, moth ball

.75

Penny

.88

Nickel

1.00

Quarter

1.25

Half dollar

1.50

Walnut, ping pong

1.75

Golf ball

2.00

Hen egg

2.50

Tennis ball

2.75

Baseball

3.00

Tea cup

4.00

Softball

4.50

Grapefruit

WEEKLY CIRCULARS
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    Record warmth and showers this week

    Monday, February 19 2018 6:23 AM EST2018-02-19 11:23:20 GMT

    Good Presidents Day.  You will start the week warm and drizzly with temps this morning in the low 70.  This afternoon will be warm with highs in the upper 60s and low 70s.  Skies will remain cloudy, and a few drizzles may remain also through the afternoon.   

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    Good Presidents Day.  You will start the week warm and drizzly with temps this morning in the low 70.  This afternoon will be warm with highs in the upper 60s and low 70s.  Skies will remain cloudy, and a few drizzles may remain also through the afternoon.   

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  • Cooling, more rain on the way.

    Cooling, more rain on the way.

    Friday, February 16 2018 6:33 AM EST2018-02-16 11:33:41 GMT

    Good Friday!  We wrap up the week with a warm, cloudy morning  with temps in the 60s.  We will see a few light showers this afternoon and evening, and temps will actually be dropping through the afternoon through the 50s. 

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    Good Friday!  We wrap up the week with a warm, cloudy morning  with temps in the 60s.  We will see a few light showers this afternoon and evening, and temps will actually be dropping through the afternoon through the 50s. 

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  • Warm, cloudy, and breezy today

    Warm, cloudy, and breezy today

    Thursday, February 15 2018 5:55 AM EST2018-02-15 10:55:54 GMT

    Good Thursday.  After a few morning drizzles, the rain chance will really dwindle as we progress through the day.  This afternoon I would expect a lot of clouds, but a rain chance of less than 20%.  

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    Good Thursday.  After a few morning drizzles, the rain chance will really dwindle as we progress through the day.  This afternoon I would expect a lot of clouds, but a rain chance of less than 20%.  

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