HOUSTON WEATHER AND OZONE FORECAST

 

TODAY
TONIGHT
SATURDAY
SATURDAY NIGHT
SUNDAY

Partly Cloudy

 

 

 

 

Ozone: Good

 

 

High: 86

E 10-15

Clear

 

 

 

 

 

 

 

Low: 68

Calm

Partly Cloudy, 30% Chance of Rain

 

 

 

 

Ozone: Good

 

 

High: 90

SW 10-15

Clear

 

 

 

 

 

 

 

Low: 72

Calm

Partly Cloudy

 

 

 

 

Ozone: Good

 

 

High: 90

S 10

 

 

 

Houston Ozone Forecast for September 29&30, 2006

Overview:

Cold front is through the area and we can expect a mostly clear sky with a drier air mass in place. Expect a slight chance of rain tomorrow with an upper-level disturbance moving through. As winds shift to become out of the southeast, ozone levels should remain in the "Good" category today and tomorrow.


OZONE FORECAST FOR SEPTEMBER 29, 2006

Good(60-70 ppb)

Today: Partly Cloudy. High of 86. Winds E 10-15.

Discussion:

Cold front has moved through the area dropping dew points behind it. Winds will gradually shift from the north to easterly this afternoon. Although the sky will be mostly clear and temperatures will be in the mid-80's, winds should be strong enough to keep ozone levels in check. Ozone levels will likely remain in the "Good" category today.

Ozone peaks should remain in the "Good" category today. F1 model indicates a peak of 73 ppb occurring in Brazoria county. Believe that ozone levels could reach between 70-80 ppb, but peak area is more likely to be on the west and southwest side of Houston with more of an easterly component to the wind this afternoon.

OZONE FORECAST FOR SEPTEMBER 30, 2006

Good(70-80 ppb)

Tomorrow: Partly Cloudy, 30% Chance of Rain. High of 90. Winds SW 10-15.

Discussion:

Moisture will make its return later tonight and tomorrow as winds become more southerly with an 850 mb high located to our east. This high will be with us for most of next week. A 500 mb disturbance could create some showers and thunderstorms around the area tomorrow afternoon. With this possibility and moderate winds forecast, ozone levels should remain in the "Good" category tomorrow.

Ozone peaks should remain in the "Good" category tomorrow. F1 model indicates a peak of 92 ppb in northeast Harris county. Do not believe peaks will get quite that high with moderate wind speeds and chance of rain. Ozone levels could reach between 70-80 ppb, with peaks occurring north/northeast of Houston.

 

 

 

OZONE ACTION GUIDE FOR HOUSTON

 

OZONE COLOR

DEFINITION

CONCENTRATION(ppb, 1 hour max)

HEALTH EFFECTS

 

 

GREEN

 

GOOD

0-79

None

YELLOW

MODERATE

80-114

Unusually sensitive people should consider limiting prolonged outdoor exertion.

 

ORANGE

UNHEALTHY FOR SENSITIVE GROUPS

115-149

Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.

 

RED

UNHEALTHY

150-179

Everyone should limit prolonged outdoor exertion.

 

PURPLE

VERY UNHEALTHY

180-UP

Everyone should limit prolonged outdoor exertion.

 

 

Sources:

http://www.tceq.state.tx.us

http://www.epa.gov