Thunderstorm Wind, Clearfield
- When
- November 12, 10:30 PM EST to 10:45 PM EST
- Where
- Clearfield County, Du Bois
- Measured
- 50 kt (58 mph) estimated gust
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 41.117, -78.767
Damaging Wind in Pennsylvania, November 12, 2003
Trees and wires down in Dubois.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What happened
The episode as NWS CTP wrote it up.
Trees and wires down in Dubois.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS State College, PA wrote its last area forecast discussion before the first event at Nov 12, 10:25 PM EST, 5 minutes earlier.
Area forecast discussion, Nov 12, 10:25 PM EST, 5 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1025 PM EST WED NOV 12 2003
...CHANGES...
WILL ADJUST AS NEEDED. ONE UPDATE DONE FOR SVR WATCH UNTIL 11 PM.
AFTER LOOKING AT NEW ETA AND WHAT OTHERS WERE DOING...DECIDED TO
GO WITH A HIGH WIND WARNING FOR LATE TONIGHT INTO THURSAY.
...COR TO ADD COUNTY CODING FOR HIGH WIND WARNING AT END OF
DISC...
...DISC...
...SHORT TERM...
BAND OF SHOWERS AND STORMS JUST TO THE WEST. SOME WIND DAMAGE
POSSILBE WITH BAND.
MAIN CONCERN IS HOW FAST HEIGHTS COME DOWN. PAST EXPERIENCE IS
THAT WINDS COULD GO QUITE HIGH FAIRLY FAST BEHIND FRONT...GIVEN
THIS SITUATION. WINDS WILL LIKELY BE QUITE STRONG INTO THE FIRST
PART OF FRIDAY. HOWEVER...WORSE WILL LIKELY BE LATE TONIGHT INTO
THU...AS SYSTEM BOMBS OUT...AND SUN WORKS ON AIRMASS ON THU.
FIRST TASTE OF MEASUREABLE LAKE EFFECT LIKELY ON THU.
LATER SHIFTS MAY WANT TO THINK ABOUT ADVISORIES...GIVEN
FIRST EVENT OF THE SEASON...AND WIND FACTOR WITH THE SNOW.
...LONG TERM...
SOME MODELS STILL WANT TO DRAG SW SYSTEM TO THE NORTH.
MARTIN
.DISCUSSION...
COLD FRONT APPROACHING FROM THE WEST WILL LEAD TO DEVELOPMENT OF
SHOWERS AND THUNDERSTORMS FROM WEST TO EAST TONIGHT. EXPECT RAPID
FROPA WITH FRONT/WIND SHIFT LINE PROGGED TO CLEAR CENTRAL PA BY 06Z.
FAST LOW/MID LEVEL FLOW IS CREATING STRONG SHEAR PROFILES ACROSS CWA
BUT INSTABILITY IS LIMITED GIVEN TIME OF YEAR...CLOUDY SKIES TODAY
AND LIMITED LL MOISTURE. ALL OF CWA REMAINS IN SVR SLIGHT RISK AREA
WITH WRN PART IN MDT OUTLOOK. WITH STRONG LOW-MID LEVEL WINDS WILL
INCLUDE POTENTIAL FOR DAMAGING WINDS IN TEXT FCST FOR THIS EVENING.
WINDS WILL CONTINUE TO BE FCST PROBLEM FOR THUR WITH TIGHT PRS
GRADIENT S OF THE SFC LOW OVER NEW ENG. ETA 85O WIND FIELDS ON THUR
ARE 4-5 DEVIATIONS ABOVE NORMAL. AVN SFC WINDS ARE IS A BIT STRONGER
THAN THE ETA WITH AVN SHOWING 40KT SUSTAINED WINDS OVER PA TOMORROW
AFTN. WILL CONTINUE HIGH WIND WATCH FOR THUR ATTM.
FLOW OF COLD AIR BEHIND FROPA WILL SET UP LAKE EFFECT SNOW SHOWERS
AND SQUALLS INTO FRIDAY. ATTM ANY SIG ACCUMS LOOK TO BE CONFINED TO
NW MTNS.
EXTENDED LOOKS COMPARATIVELY QUIET. POST FROPA HIGH PRS DOMINATES
THRU THE WEEKEND. A WARM FRONT LIFTS INTO PA MON WITH SHOWERS OVER
THE WRN PART OF THE STATE AND MORE SHOWERS WITH A COLD FRONT ON TUE.
&&
.PRELIMINARY POINT TEMPS/POPS...
HARRISBURG 45 47 30 47 / 70 20 10 10
WILLIAMSPORT 41 44 27 42 / 70 30 20 20
BRADFORD 30 31 18 34 / 80 80 60 30
JOHNSTOWN 31 32 21 36 / 70 50 40 30
ALTOONA 38 40 26 43 / 70 40 30 20
STATE COLLEGE 39 41 26 42 / 70 40 30 20
SELINSGROVE 42 45 28 44 / 70 30 20 20
LANCASTER 46 48 30 49 / 70 20 10 10
YORK 46 48 31 49 / 70 20 10 10
&&
.CTP WATCHES/WARNINGS/ADVISORIES...
PA...SEVERE THUNDERSTORM WATCH UNTIL 11 PM FOR WESTERN
COUNTIES.
HIGH WIND WARNING ALL OF CWA FOR LATE TONIGHT AND THUR.
&&
GARTNERHazardous weather outlook, Nov 12, 5:50 PM EST, 4 hours 40 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-130045- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 550 PM EST WED NOV 12 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY THE STORM PREDICTION CENTER HAS PLACED THE NORTHWEST MOUNTAINS IN A MODERATE RISK FOR SEVERE THUNDERSTORMS FOR THIS EVENING...AND A SLIGHT RISK FOR THE REST OF THE AREA THROUGH MIDNIGHT. A STRONG COLD FRONT WILL BE ACCOMPANIED BY A NARROW LINE OF SHOWERS AND THUNDERSTORMS...WHICH MAY PRODUCE DAMAGING WIND GUSTS ACROSS THE AREA THIS EVENING THROUGH MIDNIGHT. .DAYS TWO THROUGH SEVEN... STRONG WINDS IN THE WAKE OF A COLD FRONT WILL AFFECT THE REGION LATE TONIGHT AND DURING THE DAY ON THURSDAY. WIND GUSTS IN EXCESS OF 45 MPH WILL BE POSSIBLE. THE STRONGEST WIND GUSTS WILL OCCUR FROM AROUND 4 AM THURSDAY MORNING TO 6 PM THURSDAY EVENING. A HIGH WIND WATCH IS IN EFFECT FOR CENTRAL PENNSYLVANIA FROM LATE TONIGHT INTO THURSDAY AFTERNOON. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES.
In the hours before
Special weather statement, Nov 12, 7:36 PM EST, 2 hours 54 minutes before
PAZ004>006-010-011-017-024-033-130400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 736 PM EST WED NOV 12 2003 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1100 PM EST WEDNESDAY EVENING FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA... CAMBRIA...CAMERON...CLEARFIELD...ELK...MCKEAN...POTTER...SOMERSET AND WARREN. A STRONG COLD FRONT WILL MOVE THROUGH WESTERN PENNSYLVANIA THIS EVENING...ACCOMPANIED BY GUSTY SHOWERS AND THUNDERSTORMS. A FEW OF THE THUNDERSTORMS COULD PRODUCE DAMAGING WIND GUSTS UP TO 60 MPH. AFTER THE FRONT PASSES...STRONG WESTERLY WINDS WILL CONTINUE OVERNIGHT AND THURSDAY. EXPECT WINDS LATER TONIGHT TO REMAIN BETWEEN 20 AND 30 MPH...WITH GUSTS OVER 40 MPH. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT... WWW.NWS.NOAA.GOV/ER/CTP
Special weather statement, Nov 12, 8:40 PM EST, 1 hour 50 minutes before
PAZ004-130230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 840 PM EST WED NOV 12 2003 ...STRONG THUNDERSTORMS WILL AFFECT WARREN COUNTY UNTIL 9:30 PM... AT 838 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS FROM CORRY TO TITUSVILLE...MOVING NORTHEAST AT 55 MPH. THE THUNDERSTORMS WILL BE NEAR SPRING CREEK...GRAND VALLEY...ENTERPRISE AND BEAR LAKE AT 845 PM...TIDIOUTE...LOTTSVILLE AND GARLAND AT 850 PM...YOUNGSVILLE AND SUGAR GROVE AT 855 PM AND WARREN AROUND 905 PM. WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM. DANGELO
Special weather statement, Nov 12, 9:54 PM EST, 36 minutes before
PAZ017-130400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 954 PM EST WED NOV 12 2003 ...STRONG THUNDERSTORMS WILL AFFECT CLEARFIELD COUNTY UNTIL 11 PM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A NORTH TO SOUTH LINE THAT WILL ENTER WESTERN CLEARFIELD COUNTY BY 10:20 PM. THE LINE OF STORMS IS MOVING EAST AT 50 MPH. THE THUNDERSTORMS WILL NEAR TROUTVILLE...TREASURE LAKE AND DUBOIS BY 1020 PM...PENFIELD...ROCKTON AND BURNSIDE BY 1025 PM...NEW WASHINGTON AND MAHAFFEY AROUND 1030 PM...WESTOVER AND S.B. ELLIOT STATE PARK BY 1035 PM. THE STORMS WILL THEN CONTINUE MOVING RAPIDLY EASTWARD ACROSS THE REST OF THE COUNTY. WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS. DANGELO
Special weather statement, Nov 12, 10:22 PM EST, 8 minutes before
PAZ024-033-130400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 1022 PM EST WED NOV 12 2003 ...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOMERSET AND CAMBRIA COUNTIES... AT 1016 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM ALONG A LINE EXTENDING FROM INDIANA TO UNIONTOWN...MOVING EAST AT 40 MPH. THE THUNDERSTORMS WILL BE NEAR SEVEN SPRINGS AROUND 1030 PM...VINTONDALE...SPANGLER AND CONFLUENCE AROUND 1035 PM...WESTMONT...NANTY-GLO AND JENNERSTOWN AROUND 1040 PM. THE STORMS WILL THEN CROSS THROUGH THE REST OF THE LAUREL HIGHLANDS. WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS LINE OF STORMS. DANGELO
The radar
The State College radar (KCCX), 68 km away, was scanning. The volume nearest the first event began at 03:31 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Dense Fog in Florida, November 12, 2003
- Flash Flooding and Flooding in West Virginia, November 12 to 13, 2003
- High Wind and Strong Wind in Wisconsin, November 12 to 13, 2003
- Tornadoes and Hail in Ohio, November 12, 2003
- High Wind in Iowa, November 12, 2003
- High Wind in Michigan, November 12 to 13, 2003
- Tornado in Ohio, November 12, 2003
- High Wind in Ohio, November 12 to 13, 2003
- Flash Flooding and Hail in California, November 12, 2003
- High Wind in Pennsylvania, November 12 to 13, 2003
- Blizzard and Winter Storm in Michigan, November 12 to 13, 2003
- Flash Flooding and Debris Flows in California, November 12, 2003
More
Every storm in Pennsylvania in 2003Every state in 2003This day in weather historyWarnings in Pennsylvania, November 2003
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5371047.