Waterloo Regional Airport

KALO / ALO

Waterloo, US

Last Updated
Jun 10, 17:54Z

Current Weather

Display Units
Recent 57 min ago
17:54Z

☀️ Day
VFR
Flight Rules
23°C
Temperature
Dewpoint: 21°C
8 kt
190°
10 SM
Visibility
11,000 ft
Ceiling
Above Ground Level
1003 hPa
QNH
Altimeter Setting

Raw METAR

METAR KALO 101754Z 19008KT 10SM BKN110 23/21 A2961 RMK AO2 LTG DSNT E RAE29 SLP019 P0005 60006 T02330211 10294 20217 58016

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 873 ft
BKN 11,000 ft AGL
☁️
BKN
Broken (5/8-7/8 sky coverage)
11,000 ft
AGL (Above Ground)
11,873 ft AMSL

Weather Briefing

VFR

Waterloo Regional Airport is currently reporting visual flight rules (VFR) conditions with broken clouds at 11,000 feet and 10 SM visibility.

Wind Analysis

Winds are from the south (190°) at 8 knots. Runway 18/36 is favored with a 8-knot headwind and 1-knot crosswind component.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 11000 feet AGL (broken), well above standard VFR minimums.

Temperature & Moisture

Temperature is 23°C (73°F) with a dewpoint of 21°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

Forecast Outlook

The TAF forecast covers the next 24 hours. Conditions are expected to fluctuate between VFR and MVFR. VFR pilots should be prepared for deteriorating conditions. Expected weather includes: Light Thunderstorm Rain, Light Showers Rain. Expect variable wind speeds ranging from 5 to 19 knots. There is a 30% probability of MVFR conditions with Light Thunderstorm Rain between 00:00Z and 02:00Z. There is a 30% probability of MVFR conditions with Light Thunderstorm Rain between 13:00Z and 17:00Z.

Pilot Recommendations

Conditions are favorable for visual flight. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1003 hPa
Sea Level Pressure
For altitude above MSL
QFE
974 hPa
Field Pressure
Height above aerodrome (873 ft)
Pressure Alt
1,181 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 2,351 ft
ISA Deviation: +9.7°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KALO 101729Z 1018/1118 20019G29KT P6SM SCT021 BKN080 FM110000 22014KT P6SM FEW030 SCT100 PROB30 1100/1102 P6SM -TSRA BKN030CB FM110400 27007KT P6SM FEW060 SCT190 FM111200 11005KT P6SM -SHRA BKN060 PROB30 1113/1117 P6SM -TSRA OVC025CB
Upcoming Changes (Next 12 Hours)
18:51Z BASE
+0h
VFR 200° 19 kt
Visibility: >6SM
Ceiling: 8,000 ft
00:00Z FM110000
+6h
VFR 220° 14 kt
Visibility: >6SM
00:00Z PROB30
+6h
MVFR
Visibility: >6SM
Ceiling: 3,000 ft
Light Thunderstorm Rain
04:00Z FM110400
+10h
VFR 270° 7 kt
Visibility: >6SM

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
Chart Features
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
ALO
06
24
12
30
18 ✈️
36

Runway Information

Runway Length Width Surface Heading Wind Component
06/24 5,403 ft 129 ft ASP 68°
4.2 kt 6.8 kt
122° angle
12/30 8,400 ft 150 ft ASP 128°
3.8 kt 7.1 kt
62° angle
✈️ 18/36
Active: 18
6,002 ft 150 ft ASP 187°
7.9 kt 1.4 kt
10° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KALO

7,859 observations | Sep 2025 - Jun 2026

Flight Rules Distribution

VFR
71.8%
MVFR
18%
IFR
6.1%
LIFR
4%

Waterloo Regional Airport typically experiences VFR conditions 71.8% of the time, though instrument-rated pilots will find IFR weather present approximately 10.1% of observations. Prevailing winds are from the NW averaging 10.1 knots, with gusts recorded up to 35 knots. Temperature extremes range from -28°C to 34°C, reflecting significant seasonal variation. The best months for VFR flying are October, May, September.

Wind Analysis

Prevailing Direction: NW (315°)
Average Speed: 10.1 kt
Maximum Recorded: 35 kt
Calm Winds: 8.8%
Direction Distribution:
N
8.9%
NE
4.3%
E
10.4%
SE
12.7%
S
15.6%
SW
6%
W
10.8%
NW
22.5%

Temperature Range

Average: 5.5°C
Range: -28°C to 34°C
-28°C 34°C

Visibility

Average: 9.2 SM
Below 3 SM: 2.5%
Fog Frequency: 3.1%

Best Months for VFR

October May September

Runway Wind Analysis

Runway 06/24
Favorable wind: 100%
Avg crosswind: 7.9 kt
Runway 12/30
Favorable wind: 100%
Avg crosswind: 4.8 kt
Runway 18/36
Favorable wind: 100%
Avg crosswind: 6.4 kt

Statistics computed from 7,859 METAR observations (Sep 2025 - Jun 2026). Data sourced from official aviation weather services. Updated daily.

Waterloo Regional Airport - Airport Information

Airport Details

ICAO Code: KALO
IATA Code: ALO
Type: medium airport
Status: active
Elevation: 873 ft MSL

Location

City: Waterloo
Country: US
Latitude: 42.557098°
Longitude: -92.400299°
Time Zone: Etc/GMT+6

Runway Information

Runway 06/24
Length: 5,403 ft
Width: 129 ft
Surface: ASP
ILS: No
Runway 12/30
Length: 8,400 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 18/36
Length: 6,002 ft
Width: 150 ft
Surface: ASP
ILS: No

About Waterloo Regional Airport

Overview

Waterloo Regional Airport serves the northeastern Iowa region as a medium-sized airport situated at 873 feet mean sea level. Located at coordinates 42.557098, -92.400299, the airport provides critical aviation infrastructure for the Waterloo metropolitan area. The facility features three asphalted runways ranging from 5,403 to 8,400 feet in length.

Flying Conditions

Weather observations indicate predominantly VFR conditions at 67%, with MVFR conditions occurring 19.5% of the time. Temperature extremes range from -28°C to 34°C, creating diverse seasonal flying environments. Winds predominantly originate from the northwest at an average of 9.9 knots, with maximum recorded gusts of 32 knots and calm periods occurring 10.1% of the time.

Notable Features

The airport's three runways provide significant operational flexibility with consistent wind coverage. Visibility averages 9 statute miles, with reduced visibility below 3SM occurring in only 3.4% of observations. Fog events are relatively infrequent, appearing in just 5.5% of recorded weather conditions.

Approach Considerations

All three runways demonstrate 100% favorable wind alignment, with average crosswind components ranging from 4.2 to 7.8 knots. September through November represent the most consistently favorable VFR months for pilots. Runway selection can be confidently made based on current wind conditions, with minimal crosswind interference.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.