Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 137, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 24, 1996, 5:27 PM EDT for Adams County, Cumberland County, Pennsylvania. It was in force for 63 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 24, 1996, 5:27 PM EDT (21:27 UTC)
- Expired
- Jun 24, 1996, 6:30 PM EDT
- In force
- 63 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Adams County, PA, Cumberland County, PA
The radar
The Sterling radar (KLWX), 118 km from the middle of the area, began a volume at 21:31 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 24, 5:45 PM EDT | Tornado F1 | Mcknightstown, PA | |
| Jun 24, 5:45 PM EDT | Thunderstorm Wind | Shippensburg, PA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.5 hours before the alert went out and 120 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1076 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jun 24, 1:55 PM EDT, 3 hours 32 minutes earlier.
Area forecast discussion, Jun 24, 1:55 PM EDT, 3 hours 32 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 200 PM EDT MON JUN 24 1996 ...SVR TSTM WATCH MOST OF CNTRL PA THIS AFTN/EVE FLASH FLOOD WATCH CONTINUES... MODELS SHOW TONGUE WARM MOIST UNSTABLE AIR OVER REGION THRU 7 PM TONIGHT. A LOW LEVEL WARM FRONT IS SLOWLY MVG NEWD ACROSS PA THIS AFTN. THE REMANENT CONVECTION FROM OVERNIGHT HAS REFIRED OVER SERN PA WITH SOME SUPERCELL LOOKING CELLS OVER ADAMS WHICH WAS MOVING INTO NRN MARYLAND. SATELLITE IMAGERY HAS SHOWN WHAT APPEARS TO BE A BACK BUILDING LINE MOVING ACROSS PA THIS AM INTO EARLY AFTN. BACK BUILDING LINES TYPICALLY PRODUCE SEVERE WEATHER AND FORM IN ENVIRONMENTS SIMILAR TO THOSE WHICH PRODUCE SUPERCELLS. FORTUNATELY...THE MOST ACTIVE PART OF THE BACK BUILDING LINE IS PRESENTLY MOVING OVER NRN MARYLAND. HOWEVER...A COLD FRONT AND A TONGUE OF WARM MOIST AIR WILL MOVE OVER THE STATE. ANOTHER LINE WILL LIKELY FORM AND MOVE WEST TO EAST ACROSS THE STATE. MOISTURE...CONV...AND LL AGEO WINDS/CONV OF...SUGGEST MOST SVRE TSTMS WILL FORM THIS AFTN. LOOKS LIKE BEST CHC WILL BE OVER SRN PORTIONS OF STATE. EXTREMELY HIGH DEW POINT AIR MVG IN BEHIND WARM FRONT SUGGEST THAT TORRENTIAL RAINFALL IS POSSIBLE. COLD FRONT AND DRIER AIR WILL MOVE OVER THE STATE EARLY TONIGHT. MODELS SHOW INC IN WRLY FLOW AND SHARP DEC IN RH BY 00 UTC OVER WRN SECTIONS. BY MIDNIGHT VSBY SHOULD BE QUITE GOOD OVER WRN THIRD OF STATE AND IMPROVING OVER CNTRL. ANY FOG BEHIND TSTMS ACTIVITY IN ERN SECTIONS WILL DISSIPATE OVERNIGHT...FOG SHOULD GONE BE WELL BEFORE SUNRISE IN MOST LOCATIONS. SHOULD BE A NICE START TO TUES AS COOLER DRIER AIR MOVES OVER REGION. MOS SHUD BE CLOSE TO MAX TEMPS TUES. GRUMM
In the hours before
Special weather statement, Jun 24, 11:56 AM EDT, 5 hours 31 minutes before
PAZ004-005-010>012-017>019-024>028-033>036-041-045-046-049>052- 056-057-063>065-242200- SPECIAL WEATHER STATEMENT- SEVERE THUNDERSTORM WATCH NATIONAL WEATHER SERVICE STATE COLLEGE PA 1155 AM EDT MON JUN 24 1996 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM FOR WARREN AND MCKEAN COUNTIES... ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 2 PM FOR MOST OF CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY... A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 6 PM FOR WARREN AND MCKEAN COUNTIES. A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 2 PM FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY REGION: ELK... CAMERON... CLINTON... LYCOMING... CLEARFIELD... CENTRE... UNION... SNYDER... NORTHUMBERLAND... MONTOUR... CAMBRIA... BLAIR... HUNTINGDON... MIFFLIN... JUNIATA... PERRY... DAUPHIN... SOMERSET... BEDFORD... FULTON... FRANKLIN... CUMBERLAND... ADAMS AND YORK. A SEVERE THUNDERSTORM WATCRH MEANS THAT THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH AND HAIL 3/4 INCHES OR GREATER IN AND CLOSE TO THE WATCH AREA. NICOSIA
Local storm report, Jun 24, 2:06 PM EDT, 3 hours 21 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
205 PM EDT MON JUN 24 1996
TIME EDT ...CITY LOCATION..........ST ...EVENT/REMARKS
...COUNTY LOCATION........
0145 PM 5 S. GETTYSBURG PA WIND DAMAGE
06/24/96 ADAMS CHIMNEY BLOWN OVER
TREES DOWN TOP OF
SILO BLOWN OFF
DUNHAMLocal storm report, Jun 24, 3:45 PM EDT, 1 hour 42 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
345 PM EDT MON JUN 24 1996
TIME EDT ...CITY LOCATION..........ST ...EVENT/REMARKS
...COUNTY LOCATION........
0335 PM JOHNSTOWN PA WIND DAMAGE
06/24/96 CAMBRIA LARGE LIMBS DOWN
WINDS TO 60 MPH.
DUNHAMSpecial weather statement, Jun 24, 4:10 PM EDT, 1 hour 17 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056-057-059-063>066-250100- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH NATIONAL WEATHER SERVICE STATE COLLEGE PA 405 PM EDT MON JUN 24 1996 ...THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH EFFECTIVE UNTIL 900 PM FOR MOST OF CENTRAL AND WESTERN PENNSYLVANIA AS WELL AS THE MIDDLE SUSQUEHANNA VALLEY... ...A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT UNTIL 700 PM FOR THE LOWER SUSQUEHANNA VALLEY... THE WATCH INCLUDES THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA UNTIL 900 PM: ACROSS THE NORTHERN MOUNTAINS... WARREN... MCKEAN... POTTER... ELK AND CAMERON. ACROSS THE CENTRAL MOUNTAINS AND LAUREL HIGHLANDS... CLEARFIELD... CENTRE... CLINTON....CAMBRIA AND SOMERSET. ACROSS THE SOUTH CENTRAL MOUNTAINS... BEDFORD... BLAIR... FULTON... FRANKLIN... HUNTINGDON... MIFFLIN AND JUNIATA. ACROSS THE MIDDLE SUSQUEHANNA VALLEY... TIOGA... LYCOMING... SULLIVAN... UNION... SNYDER... MONTOUR... NORTHUMBERLAND AND COLUMBIA. THE WATCH INCLUDES THE FOLLOWING COUNTIES OF THE LOWER SUSQUEHANNA VALLEY UNTIL 700 PM: PERRY... CUMBERLAND... DAUPHIN... LEBANON... ADAMS... YORK AND LANCASTER. A SLOW MOVING COLD FRONT WILL TRIGGER SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING. SOME OF THE THUNDERSTORMS COULD PRODUCE STRONG DAMAGING WINDS... LARGE HAIL AND DANGEROUS LIGHTNING. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE WEATHER IN AND CLOSE TO THE WATCH AREA. A WARNING ON THE OTHER HAND MEANS SEVERE WEATHER IS OCCURRING OR IMMINENT. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST UPDATES...AND POSSIBLE WARNINGS. JUNG
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 12:12 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 63 min |
| Jun 24, 12:12 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 63 min |
| Jun 24, 12:27 PM EDT | Flash Flood Warning | CTP | Bedford | 93 min |
| Jun 24, 12:27 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 93 min |
| Jun 24, 12:36 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 69 min |
| Jun 24, 3:05 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 70 min |
| Jun 24, 3:25 PM EDT | Tornado Warning | CTP | Cambria | 50 min |
| Jun 24, 3:50 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair | 70 min |
| Jun 24, 3:54 PM EDT | Flash Flood Warning | CTP | Bedford, Blair, Cambria, Somerset | 4 hr |
| Jun 24, 4:14 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 61 min |
| Jun 24, 4:30 PM EDT | Severe Thunderstorm Warning | CTP | Fulton, Huntingdon | 60 min |
| Jun 24, 5:08 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 67 min |
| Jun 24, 5:54 PM EDT | Severe Thunderstorm Warning | CTP | York | 66 min |
| Jun 24, 6:46 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Perry | 59 min |
| Jun 24, 7:59 PM EDT | Flash Flood Warning | CTP | Lebanon | 3 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1996Every severe thunderstorm warning in 1996
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.