Alert archive / Pennsylvania / Winter Storm Warnings in 2012
Winter Storm Warning 4, NWS State College, PA
NWS State College, PA issued this winter storm warning at Oct 30, 2012, 10:58 PM EDT for Somerset County, Pennsylvania. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 30, 2012, 10:58 PM EDT (02:58 UTC)
- Expired
- Oct 31, 2012, 2:00 PM EDT
- In force
- 15 hr
- Issued by
- NWS State College, PA
County Somerset County, PA
The radar
The Pittsburgh radar (KPBZ), 119 km from the middle of the area, began a volume at 03:00 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 3.0 hours before the alert went out and 103 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
163 WWUS41 KCTP 310258 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 1058 PM EDT TUE OCT 30 2012 PAZ033-311200- /O.UPG.KCTP.WW.Y.0014.000000T0000Z-121031T1200Z/ /O.NEW.KCTP.WS.W.0004.121031T0258Z-121031T1200Z/ SOMERSET- INCLUDING THE CITY OF...SOMERSET 1058 PM EDT TUE OCT 30 2012 ...WINTER STORM WARNING IN EFFECT UNTIL 8 AM EDT WEDNESDAY... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 8 AM EDT WEDNESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * LOCATIONS...SOMERSET COUNTY. * HAZARD TYPES...SNOW. * ACCUMULATIONS...3 TO 5 INCHES BY DAYBREAK IN THE VALLEYS WITH UP TO AN ADDITIONAL 8 INCHES ON THE RIDGE TOPS. * TIMING...THROUGH 8 AM WEDNESDAY. * IMPACTS...UNTREATED ROADS AND WALKWAYS WILL BE SNOW AND SLUSH COVERED AS TEMPERATURES HOVER JUST BELOW FREEZING THROUGH THE REST OF THE OVERNIGHT. * WINDS...SOUTH TO SOUTHWEST TO WEST 10 TO 15 MPH...WITH GUSTS AROUND 20 MPH. WINDS BECOME WEST AT THE SAME SPEED TOWARD DAYBREAK. * TEMPERATURES...NEARLY STEADY AROUND 30 DEGREES. * VISIBILITIES...VARYING BETWEEN ONE HALF OF A MILE...AND ONE MILE. VISIBILITY MAY BE NEAR ZERO AT TIMES ON THE RIDGE TOPS IN HEAVY SNOW AND DENSE FOG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...WEATHER.GOV/STATECOLLEGE. && $$ PAZ024-311200- /O.CON.KCTP.WW.Y.0014.000000T0000Z-121031T1200Z/ CAMBRIA- INCLUDING THE CITY OF...JOHNSTOWN 1058 PM EDT TUE OCT 30 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT WEDNESDAY... * LOCATIONS...CAMBRIA COUNTY...MAINLY ACROSS THE HIGHER ELEVATIONS. * HAZARD TYPES...SNOW. * ACCUMULATIONS...A SLUSHY 1 TO 2 INCHES IN THE VALLEYS...WITH UP TO AN ADDITIONAL 4 INCHES ON THE RIDGE TOPS. * TIMING...THROUGH 8 AM WEDNESDAY. * IMPACTS...UNTREATED ROADS AND WALKWAYS WILL BE SNOW AND SLUSH COVERED AS TEMPERATURES HOVER NEAR OR JUST BELOW FREEZING THROUGH TONIGHT. * WINDS...SOUTHWEST TO WEST 10 TO 15 MPH....WITH GUSTS AROUND 20 MPH. WINDS BECOME WEST AT THE SAME SPEED TOWARD DAYBREAK. * TEMPERATURES...NEARLY STEADY IN THE LOWER 30S. * VISIBILITIES...VARYING BETWEEN ONE HALF OF A MILE...AND 2 MILES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES...ESPECIALLY ON ROADS CROSSING THE RIDGE TOPS. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...WEATHER.GOV/STATECOLLEGE. && $$ LAMBERT/DANGELO
3 follow-up statements
781 WWUS41 KCTP 310817 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 417 AM EDT WED OCT 31 2012 PAZ033-311630- /O.EXT.KCTP.WS.W.0004.000000T0000Z-121031T1800Z/ SOMERSET- INCLUDING THE CITY OF...SOMERSET 417 AM EDT WED OCT 31 2012 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * LOCATIONS...SOMERSET COUNTY. * HAZARD TYPES...SNOW. * ACCUMULATIONS...ADDITIONAL 2 TO 4 INCHES IN THE VALLEYS AND 4 TO 6 INCHES ON THE RIDGES. * TIMING...THROUGH MIDDAY. * IMPACTS...UNTREATED ROADS AND WALKWAYS WILL BE SNOW AND SLUSH COVERED. * WINDS...SOUTHWEST 10 TO 15 MPH WITH GUSTS UP TO 20 MPH. * TEMPERATURES...IN THE MID 30S. * VISIBILITIES...VARYING BETWEEN ONE HALF OF A MILE...AND ONE MILE. VISIBILITY MAY BE NEAR ZERO AT TIMES ON THE RIDGE TOPS IN HEAVY SNOW AND DENSE FOG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT... WEATHER.GOV/STATECOLLEGE. && $$ PAZ024-311630- /O.EXT.KCTP.WW.Y.0014.000000T0000Z-121031T1800Z/ CAMBRIA- INCLUDING THE CITY OF...JOHNSTOWN 417 AM EDT WED OCT 31 2012 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * LOCATIONS...CAMBRIA COUNTY...MAINLY ACROSS THE HIGHER ELEVATIONS. * HAZARD TYPES...SNOW. * ACCUMULATIONS...LOCALLY 1 TO 2 INCHES OF SNOW. * TIMING...THROUGH MIDDAY. * IMPACTS...UNTREATED ROADS AND WALKWAYS WILL BE SNOW AND SLUSH COVERED. * WINDS...SOUTHWEST 10 TO 15 MPH. * TEMPERATURES...IN THE MID 30S. * VISIBILITIES...VARYING BETWEEN ONE HALF OF A MILE...AND 2 MILES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES...ESPECIALLY ON ROADS CROSSING THE RIDGE TOPS. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...WEATHER.GOV/STATECOLLEGE. && $$
946 WWUS41 KCTP 311253 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 853 AM EDT WED OCT 31 2012 PAZ033-311800- /O.CON.KCTP.WS.W.0004.000000T0000Z-121031T1800Z/ SOMERSET- INCLUDING THE CITY OF...SOMERSET 853 AM EDT WED OCT 31 2012 ...A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * LOCATIONS...SOMERSET COUNTY. * HAZARD TYPES...SNOW. * ACCUMULATIONS...UP TO AN ADDITIONAL 3 TO 4 INCHES ON THE RIDGE TOPS...WITH JUST ANOTHER SLUSHY INCH IN THE VALLEYS. * TIMING...THROUGH MIDDAY. * IMPACTS...UNTREATED ROADS AND WALKWAYS WILL BE SNOW AND SLUSH COVERED. * WINDS...SOUTHWEST 10 TO 15 MPH WITH GUSTS UP TO 20 MPH. * TEMPERATURES...IN THE LOWER TO MID 30S. * VISIBILITIES...VARYING BETWEEN ONE HALF OF A MILE...AND ONE MILE. VISIBILITY MAY BE NEAR ZERO AT TIMES ON THE RIDGE TOPS IN HEAVY SNOW AND DENSE FOG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT... WEATHER.GOV/STATECOLLEGE. && $$ PAZ024-311800- /O.CON.KCTP.WW.Y.0014.000000T0000Z-121031T1800Z/ CAMBRIA- INCLUDING THE CITY OF...JOHNSTOWN 853 AM EDT WED OCT 31 2012 ...A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * LOCATIONS...CAMBRIA COUNTY...MAINLY ACROSS THE HIGHER ELEVATIONS. * HAZARD TYPES...SNOW. * ACCUMULATIONS...UP TO AN ADDITIONAL 2 TO 3 INCHES ON THE RIDGE TOPS...WITH JUST ANOTHER SLUSHY COATING IN THE VALLEYS. * TIMING...THROUGH MIDDAY. * IMPACTS...UNTREATED ROADS AND WALKWAYS WILL BE SNOW AND SLUSH COVERED. * WINDS...SOUTHWEST 10 TO 15 MPH. * TEMPERATURES...IN THE LOWER TO MID 30S. * VISIBILITIES...VARYING BETWEEN ONE HALF OF A MILE...AND 2 MILES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES...ESPECIALLY ON ROADS CROSSING THE RIDGE TOPS. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...WEATHER.GOV/STATECOLLEGE. && $$ LAMBERT
369 WWUS41 KCTP 311805 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 205 PM EDT WED OCT 31 2012 PAZ033-011000- /O.EXP.KCTP.WS.W.0004.000000T0000Z-121031T1800Z/ /O.NEW.KCTP.WW.Y.0015.121031T1805Z-121101T1500Z/ SOMERSET- INCLUDING THE CITY OF...SOMERSET 205 PM EDT WED OCT 31 2012 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM EDT THURSDAY... ...WINTER STORM WARNING WILL EXPIRE AT 2 PM EDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 11 AM EDT THURSDAY. * LOCATIONS...SOMERSET COUNTY. * HAZARD TYPES...SNOW. * ACCUMULATIONS...UP TO AN ADDITIONAL 3 TO 4 INCHES ON THE RIDGE TOPS BY LATE THURSDAY MORNING...WITH JUST ANOTHER SLUSHY INCH OR TWO IN THE VALLEYS. * TIMING...UNTIL 11 AM THURSDAY MORNING. * IMPACTS...UNTREATED ROADS AND WALKWAYS MAY BE SNOW AND SLUSH COVERED. * WINDS...SOUTHWEST TO WEST 10 TO 15 MPH WITH GUSTS UP TO 20 MPH. * TEMPERATURES...IN THE LOWER TO MID 30S THIS AFTERNOON...AND BETWEEN 30 AND 32 DEGREES TONIGHT. * VISIBILITIES...VARYING BETWEEN ONE AND TWO MILES. VISIBILITY MAY BE NEAR ZERO AT TIMES ON THE RIDGE TOPS TONIGHT IN SNOW AND DENSE FOG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...WEATHER.GOV/STATECOLLEGE. && $$ PAZ024-311915- /O.EXP.KCTP.WW.Y.0014.000000T0000Z-121031T1800Z/ CAMBRIA- INCLUDING THE CITY OF...JOHNSTOWN 205 PM EDT WED OCT 31 2012 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 2 PM EDT THIS AFTERNOON... OCCASIONAL LIGHT SNOW WILL PERSIST THROUGH THURSDAY MORNING. ADDITIONAL ACCUMULATIONS OF A SLUSHY INCH OR TWO ARE POSSIBLE ON THE RIDGE TOPS TONIGHT. HOWEVER...MOST OTHER VALLEY LOCATIONS WILL SEE LESS THAN AN INCH OF NEW SNOW TONIGHT. $$ LAMBERT/GARTNER/EVANEGO
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 31, 2:05 PM EDT | Winter Weather Advisory | CTP | Somerset | 21 hr |
Nearby
Winter Storm Warnings in Pennsylvania, 2012Every winter storm warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.