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Harvey, Louisiana

Community in Jefferson Parish, Louisiana

Air quality

The air at Harvey

Index 42, good, led by fine particles. Read at 10 PM from its reporting area, New Orleans (LA), 14 miles off.

42Good
  • Fine particles (PM2.5)42Good6.2 mi
  • Ozone35Good41 ppb16.5 mi
  • Nitrogen dioxide8Good8 ppb8.1 mi
  • Sulfur dioxide0Good0.3 ppb6.2 mi

The days ahead

Highest 71, moderate, today, led by fine particles. Yesterday measured 74, moderate.

Smoke, the next 46 hours

Little smoke near the ground through Sat 7 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Harvey

None in the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Harvey, the next 46 hours

Visibility stays 7 miles or more through Sat 7 PM, lowest 8 miles Fri 1 AM.

FriSat

On the radar over Harvey, LouisianaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Harvey, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.5 miles away.

measured now3 instruments

measured daily2 instruments

Marrero 1.8 ELA-JF-22

In a volunteer observer's own ground/1.5 mi away/0 ft/level with here

precip, snowfall, snow depth

Rank-

MerauxMERL1

At a cooperative observer's station/8.4 mi away/12 ft/12 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at New Orleans NAS, drawn

The nearest airport reporting now, 4.5 mi from Harvey, Louisiana. From its report of Oct 15, 2026, 9:55 PM local time: 3 of its 6 sheets.

The sky

A few clouds at 3,000 ft; visibility 10 mi or more.

Section of the sky over New Orleans NAS, height above the station to scale: a few clouds cloud with its base at 3,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT NBGFIG. A THE SKY OVER NEW ORLEANS NASSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETFEW 3,000 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLENew Orleans NAS, the skySTATION REPORT · ASOS NBGTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-NBG-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

72.0 F with a dew point of 70.0 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up; the lowest cloud reported is at 3,000 ft.

Chart of the air at New Orleans NAS: temperature 72.0 degrees Fahrenheit and dew point 70.0, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station, against the lowest cloud reported at 3,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT NBGFIG. B THE AIR AT NEW ORLEANS NASTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00060 F70 F80 FSATURATES 500 FT ABOVE THE STATION, AT 69.4 FLOWEST CLOUD REPORTED, FEW 3,000 FTTEMPERATURE AND DEW POINT 72.0 F, 70.0 FRELATIVE HUMIDITY 93 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLENew Orleans NAS, the airSTATION REPORT · ASOS NBGTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-NBG-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at New Orleans NAS, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT NBGFIG. C THE WIND AT NEW ORLEANS NASPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLENew Orleans NAS, the windSTATION REPORT · ASOS NBGTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-NBG-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of New Orleans NAS, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Louisiana

21 places, each with its own forecast and its own instruments.

Near Harvey

The nearest places, each with its own forecast and the instruments nearest it.

Near Harvey

River and lake gauges