National Weather Connections

Surface Data

NWS Data by state: AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY; NWS Zones
Mesonet Sites: MesoWest, Find a mesonet, All Mesonet data, IA, OK, PA; AWS Metro Networks: Boston, Philadelphia
Pennsylvania Sites: PASC, PSU Campus, Beavertown (Synder CT), Tussey Mtn
Webcams: PA Map, Multicam, Multicam East, PIT: Point, Parkway East, Downtown, KDKA selection; Bloomsburg, CUP, Mt. Pleasant, New Castle, Hermitage, Seven Springs, Loretto, Clarion Valley, Berks Co, Mt. Nittany, HUB lawn, NWS State College, Erie, Laurel Ridge, Peak 'n Peek, MDT, PSU-Altoona, Ebensburg, Scranton, Punxsutawney, Lancaster; Other PA webcam lists: PADOT, US, US 2, visitPA.com, PASC, Live News Cameras

Hourlies (by state): AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY

Metars (by state): AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, Station lookup: NWS, UCAR, PSU, Map ASOS sites

Last 36 Metars: ABQ, ACY, ALB, ATL, AUS, BDR, BHM, BNA, BOI, BOS, BRO, BTR, BUF, BWI, CHA, CHS, CLE, CLT, CMH, CPR, CRW, CVG, CYS, DCA, DEN, DFW, DSM, DTW, EVV, EWR, EYW, FAR, GSO, HFD, HLN, IAD, IAH, ICT, ILM, IND, JAN, JAX, JFK, LAS, LAX, LEX, LGA, LIT, LOU, MCI, MEM, MGM, MIA, MOB, MSN, MSP, NEW, NYC, OKC, OMA, ORD, ORF, ORL, PDX, PHL, PHX, PIT, PKB, PVD, PWM, RAP, RDU, RIC, RNO, ROA, SAC, SAN, SAT, SAV, SEA, SFO, SLC, STL, SYR, TLH, TPA, TUL, TUS, Anywhere

Other Metar archives: 36 hours, 48 hours, 60 hours, 4 days; Meteograms and More: UWyoming, Unisys; More surface obs: Webcams

Snow & Ice: USA, NE Loop, NA, All Products, Interactive, USDA Weekly Snowpack Reports Environment Canada, NOHRSC, Polar Products, Snowcover Anomaly

Hydrology: Water Level (Tide) Data, NWS AHPS, Waterwatch, Above Flood Stage, All Flood Statements, Nat'l Summary, Buoys; Oceans: NOAA NowCoast, Wave Model

Recent precip: FSL Liquid Equiv, NWS Multi-sensor, California, Los Angeles, CA/NV

Flash Flood Guidance: MARFC, ORFC, LMRFC, NCRFC; Long-Term Monitoring: PDSI, Drought Monitor;

Watch/Warning/Adv: Maps: NWS1, NWS2 , NWS3 , TWC, AWS, USWX, SPC; Text: A&M , NWS , COD , AWS , SPC

US Surface maps: SPC Mesoscale Analysis, NH Unified Analyses, Current, Current w/ Sat; 24-hr Temp Change 1, 2, DIFAX, Datastreme

Station Models: PA, HPC Maps, Analyses, PSU mapwall, Bob Hart Page, USA, UNISYS, NEXLAB, UCAR, 24-hour Archive, SPC Archive (back to 1998)

Surface data plots (all regions/variables): SPC, WxForecaster.com, UWyoming, Bob Hart page; Archives: UIUC, Plymouth State, UWyoming, HPC (3-hr), MesoWest, Iowa Mesonet

Latest USA maps: Loops: Temp, Dewp, Pres, Wind; Stills: Press, Press Chg, Temp, Moist Conv, Dewpt, Wind Dir, Wind Sp, Snow, Coolwx maps

Latest ENSO: Discussion, Expert Discussion, Maps/Forecast, SST animation: 2-month, 6-month, SST section, SST graphs, MEI; Marine Data from Oceanweather

Upper-Air Data

Mandatory-level constant-pressure charts: NCAR, Unisys, U. Wyoming, DIFAX; Hemispheric: UNISYS, 250-mb; Archive: NCEP, SPC1, SPC2, MIT, UCAR, Isentropic, Iowa State
AMSU Real-Time; NCEP Reanalysis: Godfrey's Page, NCEP Climo, NCEP Daily, Plymouth State, PSU page
Skew-T Log-P diagrams: SPC, Site 1, Site 2, Site 3, Site 4, RUC, Other models, GOES Sounder; Profiler Data: NPN/CAP, UCAR page; Hodographs: U. Wyoming, UCAR
Jet-stream locator for E. Pac, N. America, N. Hemisphere, Archive; Blocking index; Turbulence forecast, GOES-derived Winds, Soundings, More sounding data, GOES-13
Animation of last 30 days 200-mb height anomalies worldwide; CDC anomaly page, IDI anomaly page

Satellite Imagery

Visible: PA closeup, NE 1, NE 2, MW/Lakes, East (color), USA, USA (loop&zoom), N.A., Unisys, AVHRR, Java Loop; Great List: NWA
IR: PA closeup, PA, NE (1), NE (2), MW/Lakes, USA, USA (loop&zoom), N.A., Color N.A., Unisys, PSU Mapwall, Java Loop
Vapor: USA, USA (loop&zoom), N.A., Unisys, Winds/Vort/Div, Java Loop; Great Toggling between types: WxForecaster.com
Loops: COD 1-km links, Western view, UCAR, US IR, NH Vapor (PSU); GOES-derived products: CIMSS Sounder, Imager; NOAA SSD, For Aviation, Soundings, Winds
International: Full-Disk, NASA, Global choices, Canadian, Aviation Wx Center, Meteosat, Tropical, Polar-orbiting, NEXSAT, View from any Satellite, DBaron
GOES Servers: NOAA, GHCC-NASA, 21-day GOES-East archive, GOES-West archive; Polar-orbiting/High-Res Links: IOD, Archive, MODIS SSEC, Space Imaging Links
Tropical: Many Floaters, MSFC, PSU, NRL; Other: AMSU, MIMIC-TPW, GOES-derived Winds, Soundings
Archives: SPC, McGill, PSU1, PSU2, NCDC General, NCDC GIBBS Unisys, Langley, SSEC, SFSU (2 yr), Ill (3 mo), OSU (1 mo), JHU, UWash (1 wk), Antarctic (2 wk), HSEI,GOES Proj Sci; Int'l: Meteosat, SATMOS, Dundee, CIMSS

Radar Imagery

NEXRAD: NWS: PSU closeup, PHL, UNV, BGM, PIT;Intellicast: PHL, UNV; All: (1), (2), (3), (4); Archives: UCAR, Plymouth, NCDC 1, NCDC 2, Viewer, SFSU, PSU (CCX only), PSU, TDWR Data
Local NWS Radars: Complete suite of products, Experimental NEXRAD composites; All NEXRAD products: Radar Products Description, 24-hour archive, JAVA viewer needed;
Private Radars: PHL, PHL WCAU, PHL WPVI, PIT, AVP, BAL, DCA, BUF, ROC, CRW, CMH,Others; Monitoring/Education: NWS FAQ, Dual Polarization, Radars up/down?
Regional Radars: East Loop, NE, MeteoStar NE, SE, NC, SC, NW, SW
National Radar Summary: WSI, PSU, NWS, 6-hr loop, Canada, TRMM Global rainfall; Lightning: USA (1), E-wall, USA (2), USA (3), State College, PHL

Forecasts

NWS Regions: Eastern, Central, Southern, Western, River Centers, BUFKIT
NWS Zone Forecasts: UNV, AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY
Marine and River Forecasts: Marine, Tides: (1), (2),River: Forecasts, Flooding Outlook
Forecast discussions (by state): UNV, PIT, PHL, AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY; by Forecast Office
Model Characteristics: Model Matrix; List of Subjective model biases, Model Status, EMC Home
Model Errors/biases: Real-time: MOS, 0-84 hr Recent Stats (map form), 5-10 day HPC Model Diagnostic; Longer-term Performance: Near-sfc NCEP models, Global, NDFD
NCEP National forecast discussions: Short-Range: 12-48 Hr Prognostic (maps), QPF, Model Diagnostic, Excessive Rainfall (maps), SPC Mesoscale, Marine; Tropical: Discussion & Outlook; Long-Range: HPC Extended, NCEP 6-10 & 8-14 day, Threats Assessment
Winter Wx Tools: NAM Precip Type Meteograms, NWS Impact Graphics, Heavy Snow Discussion (maps), SREF Winter System, Critical Thickness
Severe Wx Outlooks: Day 1 SVR, Day 2 SVR, A&M Convective Maps, AWC Convective, Archive
Severe Wx Forecasts: HRRR 3-km, OU CAPS, Exper 0-3 hr, FAA fcst; SPC/NWS Tools: RUC, Nowcasting, Focus Region, SPC forecast tools, SPC Derecho Page
Forecast Maps: HPC Days 1-2, Days 3-7; TWC Maps M, T, W, R, F, Sa, Su; TWC Highs: Day 1, 2, 3, 4, 5, 6, 7; TWC Lows: Day 1, 2, 3, 4, 5, 6, 7
Model Looping: PSU E-wall, NCEP maps, Weatherforecaster.com, Ready Animated Gifs, WRF 2, WRF Hemispheric, Wright-Weather, Great Page 1, Great Page 2, Storm Machine (customized), QG diagnostics
Short-range Guidance:
PA Focus: WRF, MM5; NE Focus (WRF): 00Z, 06Z, 12Z, 18Z; Derived Fields: FSU FGEN, FGEN, QG-omega, Archives: PSU, NOMADS, MOS Archives (MDL)
Model Comparisons: PSU E-wall, DaveW, READY graphics, Lots of Models; Site 1, Site 2, Thickness, NGM/ETA/GFS/RUC X-sect/Time; Comparison of Model Soundings, WRF-NAM: Wisc, NCEP, MOS Snow, WRF website, 3km WRF
Ensemble: E-wall, NAEFS, NCEP Winter, NCEP, NWS-CTP anomalies, Ensemble confidence
GFS: UNISYS, GRADS, ARL, NCEP, Wisc, ETA/GFS comparison, Meteograms, MOS Snow
Other Models: Rapid Refresh, RUC; RUC Meteograms, Canadian; MM5: (1), (2); WRF-ARW; COAMPS; CRAS; UKMET; RAMS, Iowa State Isentropic
Long-range Guidance:
GFS: NCEP, UNISYS, A&M, CDC, NCEP, 10-day temp, 10-day precip, Verification stats, Meteograms
ECMWF: UNISYS, 00Z Run, 10-day, 12Z Run, 10-day; OTHERS: NOGAPS, Canadian, UKMET, WxRisk
NCEP Products: 6-10 day outlook, 8-14 day outlook, Model Tools, Verification Stats; All Hurricane Models
Ensemble: NCEP, NCEP RMOP, Utah, PSU, CTP Plumes, SPC Plumes, UNV Thk plots, UNV Thk archive, MOS Graphics, Canadian , Ensemble System Characteristics (from COMET)
Teleconnection Indices: GFS Blocking Index, NAO,WPO,PNA,EPO, NAO, NAO Ensm, PNA, PNA Ensm, AO etc, Climate Index Archive, Week-2
Monthly/Seasonal Outlooks: CPC Monthly, CPC Seasonal, CFS Model Forecasts, NCEP Experimental, UK group (NAO); Analogs Analysis
Difax charts: NGM , ETA , AVN
MOS/FOUS: MOS e-wall, MOS errors, MDL MOS, MRF Ensemble: Members, All Model Output: A&M, FSU; NGM; Decoding Instructions, All FOUS, All MOS Products

Climatological Data

General: NYTimes, Wx World, State Climatologists; Historical Weather Almanacs: Wx Notebook; Regional Centers: Western; Anomaly fields for past events: PSU 1, PSU 2
NWS Climo data (by state): AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, NCDC State Climate Summaries
Pennsylvania: Coop Recent, Archive, "Normals"; Hourly archive, Hourly climo, Drought, Wind roses, MARFC Maps, Multi-sensor Precip, PSU Wx, Model Data, Nese Climate
National: Yesterday Max 1, 2, 3; Min 1, 2, 3; Archived Max/Min ; Archived Departure Maps: Max, Min, Mean; Today's Ave Max, Ave Min; Record Reports: NCDC (excellent), OSU, Map Daily Records; Nese Pages: Data, Archive
NCDC National: 1 & 5-minute ASOS data, Coop Archive, Threading; HCN Daily FTP site, Monthly & Daily archive, surfacestations.org ; Alaska Archive; Utah State Archive
Severe: SPC Stats, Severe Warnings Archive, Tornado History Project, Tornado Stats, Severe Database, Severe News, On-line Severe Climatology, F-Scale Enhancement Proj, Severe T'Storm Climo, Global lightning
Extremes for Many Locations: Max, Min, Wind, State Snows, Western States, NYC Storm Archives
Monthly "Normals": Cloudy Percent, PRISM, TMax (map), TMin (map), TMean (map), Liquid (map), Wind, PWAT, Diurnal Climo, Other NCDC tables; Coop "Normals": (1), (2); Precip Frequency Stats
Snow Climatology: Averages (var. POR), 1971-2000 "Normals", Means/Extremes, Ray's NJ Storm Archive
U.S. Climate Monitoring: NCDC Daily Local Archive, CDC Analyses, NCDC General, CARA HCN, GISS Global, NCDC State; Temp/Precip: Totals, Ranks; SPI; 1,5,7,30,90,MTD anomalies Temp, Precip, HPRCC Goldmine, ESRL Maproom, Divisional Data
Int'l / U.S. City Monitoring: AMSU Global Ave, Temperature, Precipitation, Global Climate-at-a-Glance, Canadian; TRMM Products: Monthly Precip Anomalies; Climatology of recent Storm Tracks
Archived Weather Maps: Daily 1871-2001, Daily 2002-, Weekly 2003-, Weekly Wx & Crop Bulletin
Temp, dewpoint, SLP graphs for PHL for the last: 48 hours , 10 days , 1 month , 2 months

Additional Information

News sources: AMS Datastreme, Environmental News, Earth Observatory, NOAA News, News flashes ; Blogs: TWC, Mike Smith, WattsUp, Cliff Mass, Doswell, Mooney, Masters, Icecap, ClimateAudit, Isaac Held, Realclimate, Pielke Jr, Skilling, Mayfield, CIMSS, GOES-R Testbed, Capital Wx Gang, Jack Williams, USA Today, Weather Doctor, Articles

Celestial/Astronomical: NASA, Celestial Almanac, USNO Info, Sun's Path, Space Weather, Earth & Sky, Interactive Sky Chart, Cloud Appreciation Society; Ozone Monitoring: Ozone hole, Ozone over your house

Other Sources for PA Weather: NWS Public Info NE, Ready, OSU, NWS, NEXLAB, Texas A&M, Travel information

SST: Climo: Today, Any Day, Monthly; Current: 6-mo animation, EMC, Global (1), (2), 6-mo Anomaly animation, Anomaly (1), (2), 14-km N.A., 50-km Global, All Sectors, NHC, Rutgers; Great Lakes: GLERL, Coastwatch, NATICE; Gulf of Mexico SST and Currents

Water temps (text): East Coast & beyond; Buoys: DE Bay , VA Beach , Hatteras , Long Island

El Nino: Official defn/criteria, Region Temps, Model forecasts, Climo similar cases, FAQ 1, FAQ 2, Current info, Impacts 1, Impacts 2, Impacts 3, Impacts 4

Maps: National Atlas, National Atlas 2, XCskies data, Color Landform Atlas, Map Library, Distance calculator, Lat/Lon Distance Calc, Lat/Lon Finder, Make Your Own, Elevations anywhere

Glossaries: Severe weather, NWS, AMS Glossary of Meteorology, UCAR MetEd, Geography, North American Gazetteer

Explanation of many Meteorological acronyms, NWS Forecast Discussion Terms, List of contractions

International: E-walls: Europe, East Asia, Tropical; Other Int'l sites: Europe Warnings, WorldWeather, Brugge Weather News, WeatherOnline, SW Asia, World Climate, Weatherbase

Air Quality: Smog Blog, Aerosol Optical Depth, Nat'l Forecast, NE Forecast, Air Quality Satellite views, NWS graphics, OAD info

Event/County/City info: Epodunk, Zipskinny.com , Any City Info, Today's Front Pages, Ski Resort Info, Avalanche

Fire Weather: National Fire Wx Page, National Fire Statistics, SPC Fire Wx Forecasts, MODIS Active Maps

Tropical (General): NHC Home, PSU Tropical e-wall, NRL Monterey (sounder), Caribbean Weather, RAMSDIS, Atlantic Trop WxCenter, NOAA StormTracker, Digital Typhoon
Observations: Recon, NC Winds, Buoys, QuikSCAT, Satellite winds
Satellite: CIMSS 1, CIMSS 2, MSFC, PSU, NRL; Radars: Mexico, Jamaica, Cuba, Puerto Rico, Bermuda; Models: PSU WRF-EnKF, HWRF, TC Experimental, UCAR Model tracks; FSU Analogs, Model Site, Probability; Fiorino
NHC Outlooks: Atlantic, E. Pacific; NHC Satellite Discussions: Atlantic, E. Pacific; JTWC, Typhoon pronunciation;
TAFB Forecast Graphics: Surface, Wind/Wave, High Wind/Wave; Millennium Weather;
Archives: NOAA, SSMI, HURDAT re-analysis, UNISYS, JHU SSTs, Hurricane Tracker, NHC 1958-, NHC rainfall maps, NHC Worst, U.S. Landfalls, Worldwide (by yr/mo), Worldwide Retired

Educational Modules: NCEP Ensemble, COMET MetEd, NWP, Mesoscale Meteo, CBM Study Guide, NWS-SDF Training; Wx calculators: NWS 1, NWS 2, Army

Meteo 416 links: MapWall I (FG), MapWall II (GY), Meteo 416 Main Page, Zones, MADIS, Mesowest, Find Mesonets by State, IFLOWS, FSL Liquid Equiv, Multi-Sensor Daily, Hourly; NOHRSC Snowfall; RTMA: 1, 2, Module

Penn State Athletics: PSU, Zombie Nation, WhiteOut, BlackShoeDiaries, PSU Football Show