MesoWest Information for PMN01 in Rock Springs, PA, United States Of America (site inactive)

The following information is known about PMN01. If you think that any information is incorrect, then please follow the instructions for correcting that data item.

It is possible that this page will report a problem where no problem exists. If you believe that this has happened, then please contact me (address at the bottom of this page) and explain clearly why you think this page is in error. Note that any changes that you make may take a few days to show up here, so please give it a week before commenting.

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PMN01
KC1JL
EW2281
CW6778
CW6777
GW5323
KB3FKJ
EW4169
WX2DX-2
EW3453
FW0956
DW4321
EW0707
EW7414
CW6747
CW8478
FW8359
CW9300
N3HBJ
FW4118
GW0697
GW1112
FW0311
GW4974
EW9996
DW1818
EW1858
KA3WVU
FW3222
CW9098
FW9330
EW0310
W3TMB
N3DXC
GW1669
DW3263
GW4476
EW7030
FW6463
EW5802
EW3017
KC3OXK
FW7181
FW7017
DW6064
DW3331
GW4324
KB3CAT
EW2997
GW4082
N3FWE
DW8162
FW5684
EW5311
EW5865
KB3CNS
GW3178
GW0609
DW5425
GW4196
FW5817
KB3AWQ
DW6150
EW1671
GW1135
EW9852
EW9827
DW6912
EW5759
GW1330
DW8764
GW3327
EW9805
KB3YPI
W3ZTB
FW8830
KC3SRB
FW6714
GW4797
EW2563
EW5637
EW9743
DW6162
K3HM
DW9453
CW4362
W3MSB
GW4068
FW0530
FW8426
DW8125
KQ3F
FW4822
GW5620
W3MSB-2
FW6701
CW1662
K3TLB
KC3QWH
FW7923
FW3840
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Registered Location

Latitude: 40° 42' 36" N (deg min sec), 40.7100° (decimal), 4042.60N (LORAN)
Longitude: 77° 57' 7" W (deg min sec), -77.9520° (decimal), 07757.12W (LORAN)
Elevation: 367 metres (1204 feet) -- validated against 363 metres (1191 feet) from Geonames
Location: Rock Springs, PA, United States Of America
County: Centre, PA
Data provider: PEMN
Forecast Office: Central Pennsylvania (CTP)

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'PMN01' marker) will display the latitude/longitude of that point.

If the displayed location (or elevation) of the weather observing location is incorrect, please drag the marker to the right location (or click in the right location), and then send the updated information. Please note that we are trying to spot either the Stevenson Screen (or equivalent) or the location where the barometric readings are taken.

Can you help with location quality? Please indicate if the marker on the map points at the weather instrument cluster:

The location information for this site was gathered from 1 data source. The source which most closely matches the consensus is chosen. Many of these sources only report the location to the nearest minute (or hundredth of degree). This can lead to the marker being placed noticeably incorrectly. Please see Discussion of Location Errors for more information. Show location history.

There are no photographs of the station. If you have pictures of this location, then please email them to pmn01@photo.gladstonefamily.net.

You can try to find photographs from the area surrounding the site marker by clicking on Find nearby photographs. (There are none)

Data Status

Over the last 28 days, no data was seen on the following dates: 2025-02-17 to 2025-02-20, 2025-03-03 to 2025-03-14.

Recent observations from this weather station can be downloaded as a CSV file suitable for importing into various spreadsheet programs: last 7 days, last 14 days, last 28 days, last 56 days. This data can also be linked directly from Excel using a Web Query. The main link goes to the page with the data on it, and the IQY link is the Web Query that will access it: last 7 days (IQY: last 7 days), last 14 days (IQY: last 14 days), last 28 days (IQY: last 28 days), last 56 days (IQY: last 56 days).

All the means and standard deviations shown below are from the last 28 days. Change analysis period to Last 3 days  Last 7 days  Last 14 days  Last 8 weeks  Last 13 weeks  Last 26 weeks  Last 39 weeks  Last 52 weeks  

Barometer

Average barometer error: 0.5 milliBars
Error standard deviation: 0.3 milliBars

 
MADIS
rating
MADIS rating 100% QC OK
 

Latest daily graph:

Latest daily graph

These values are within range, so your sensor is probably calibrated correctly.

Temperature

  24 hours  Day time  Night time
Average temperature error1.0 °F1.1 °F0.8 °F
Error standard deviation1.8 °F1.2 °F2.1 °F

NOTE: If the error above is POSITIVE, then it means that the analysis temperature is HIGHER than the reported temperature. This means that your sensor is reading COLDER than expected.

 
 
MADIS
rating
MADIS rating 95% QC OK
 

Latest daily graph:

Latest daily graph

These values are within the acceptable range. This probably means that your sensor is sited correctly and is calibrated correctly.

Dewpoint -- or switch to Relative Humidity

  24 hours  Day time  Night time
Average dewpoint error1.9 °F2.3 °F1.7 °F
Error standard deviation1.8 °F1.7 °F1.8 °F

NOTE: If the error above is POSITIVE, then it means that the analysis temperature is HIGHER than the reported temperature. This means that your sensor is reading COLDER than expected.

 
 
MADIS
rating
MADIS rating 95% QC OK
 

Latest daily graph:

Latest daily graph

These values are within the acceptable range. This probably means that your sensor is sited correctly and is calibrated correctly.

Wind Vector

The wind vector is the average wind over the relevant period. Note that if the wind blows North for half the time at 2 knots, and then blows South for the other half of the time at 2 knots, then the result is zero -- i.e. North wind and South wind will cancel out. Over time, the direction of the wind and of the analysis should match pretty well. If the lengths of the vector are different, then it could mean either that your anemometer reads high or low, or that you are in a more shielded or more open space.
MADIS
rating
MADIS rating 95% QC OK
TodayLast 7 days
Wind vector chartWind vector chart for last 7 days

Neighboring Stations

This is a list of stations that are close to this station. Note that this is not the list of stations that are used in the data analysis. That list of stations is known only to MADIS. You can see all the stations at MADIS Data Display. Your station should be in the middle of the display. If you think that the analysis is incorrect, then maybe one of the close stations has failed.

You can look at those for comparison purposes. The average difference between your station and each station below is listed as well. This may allow you to detect local stations which are erroneous. You can also use these numbers to adjust your instruments -- especially if a number of ASOS stations have similar differences to your station. Also, try increasing the analysis period to more than the default 28 days. The difference is only given if both stations report reasonably often during each day. Some stations only report every 6 hours, and this makes the average of less interest. In this case, the average is not displayed. The values reported are the differences between this station and the neighboring station. I.e. if the difference is positive, then this station is reading higher than the neighboring station. Since this station has not been reporting continuously during the analysis period (it missed 16 days out of 28), the offsets below may not be accurate.

You can also subscribe to an RSS feed to tell you when new stations come online in this area. Choose either within 100 miles or 250 miles . For stations covered by your Forecast Office: Central Pennsylvania (CTP) .

SiteDistanceLocationBarometerTemperatureDewpoint
CW67785.7 milesNortheast AccuWeather HQ, PA, US (lat 40.7815°, long -77.8965°, altitude 373 metres) 0.6mb0.8°F0.5°F
CW67775.8 milesNortheast The Landings, PA, US (lat 40.7712°, long -77.8773°, altitude 360 metres) 1.1mb1.8°F0.8°F
KB3FKJ6.2 milesNortheast STATE COLLEGE, PA, US (lat 40.7740°, long -77.8690°, altitude 367 metres) 0.6mb0.9°F0.8°F
EW41696.4 milesNorthwest Stormstown, PA, US (lat 40.7913°, long -78.0117°, altitude 420 metres) 0.1mb1.5°F0.3°F
WX2DX-26.5 milesNorthwest Stormstown, PA, US (lat 40.7910°, long -78.0158°, altitude 418 metres) 0.4mb0.7°F0.6°F
FW09567.1 milesNorth Stormstown, PA, US (lat 40.8062°, long -77.9980°, altitude 442 metres) 0.3mb1.0°F1.5°F
DW43217.6 milesNortheast State College, PA, US (lat 40.8005°, long -77.8707°, altitude 369 metres) 1.0mb0.6°F-0.0°F
EW741410.6 milesNortheast Lemont, PA, US (lat 40.8196°, long -77.8110°, altitude 345 metres) 0.7mb1.2°F-0.2°F
FW835913.9 milesSouth Huntingdon, PA, US (lat 40.5151°, long -78.0145°, altitude 280 metres) 0.5mb1.6°F0.6°F
CW930015.5 milesSouth Huntingdon, PA, US (lat 40.4911°, long -78.0127°, altitude 208 metres) 0.0mb1.7°F-1.2°F

Quality Control Notes

This page reports on the quality control checks performed by MADIS. The green check mark and red cross are chosen based on the average performance during the analysis period (which is selectable above). The red cross can appear even if MADIS reports that all observations pass the MADIS QC checks.

The 'MADIS rating' reports on the percentage of observations that pass the MADIS checks. You should aim for two thumbs up!

Location Formats

The location is shown in three different formats. Each of these is used in some software, and is shown on some websites.

Degrees Minutes Seconds: VWS/VWSAPRS, WeatherLink 5.5, WeatherLink (5.2-5.4), WeatherView (Linux)

Decimal degrees: FreeWX, WeatherView32 (PC application)

LORAN: WeatherDisplay, WUHU, Henriksen WServer

Resources

CWOP Home: This describes the whole CWOP program and has a large amount of useful information.

CWOP Siting Guide (PDF): This is a guide to siting and operating a CWOP station. This is a must-read document.

Another CWOP Guide (PDF): This is another guide to siting and operating a CWOP station. This is a must-read document.

Urban Siting and Operations (PDF): This is a guide to siting and operating a CWOP station in an urban environment.

APRS WX Message format: This describes the actual format of the messages transmitted that carry WX information.

WXQC Mailing List: This is a mailing list where data quality issues are discussed. Assistance with software configuration can often be found here.

Topo Map Reading Guide: How to read USGS topographic maps, with a good section on reading contours.

Geographically nearby web pages: Use Geourl to find web pages that deal with locations geographically close to this site.


Overall website comments, problems etc to Philip Gladstone
Page layout last modified Sunday, 28 February 2016
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