Alert archive / Pennsylvania / Tornado Warnings in 1997

Tornado Warning 10, NWS State College, PA

August 15, 1997Blair County, Pennsylvania

NWS State College, PA issued this tornado warning at Aug 15, 1997, 6:41 PM EDT for Blair County, Pennsylvania. It was in force for 49 min. 1 report 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
Aug 15, 1997, 6:41 PM EDT (22:41 UTC)
Expired
Aug 15, 1997, 7:30 PM EDT
In force
49 min
Issued by
NWS State College, PA
Area
Whole counties

County Blair County, PA

What was reported inside it

TimeReportWhereRemark
Aug 15, 7:05 PM EDTThunderstorm Wind 51Tyrone, PATrees and wires down between Tyrone and Tipton.

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

Pittsburgh, PA (KPIT), launched 12:00Z, 10.7 hours before the alert went out and 148 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.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 1997-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 1997-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1167 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCTP 152243 RRA
TORCTP
PAC013-152330-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
641 PM EDT FRI AUG 15 1997

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 730 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL PENNSYLVANIA

   ...NORTHERN BLAIR COUNTY
 
AT 640 PM EDT...A POSSIBLE TORNADO WAS INDICATED BY STATE COLLEGE
DOPPLER RADAR 10 MILES WEST OF TYRONE OR 6 MILES NORTHWEST OF
BELLWOOD MOVING EAST AT 25 MPH.

THE STORM CONTAINING THE TORNADO WILL PASS NEAR...
BELLWOOD                          BY 650 PM EDT
TIPTON                            BY 655 PM EDT
BLAND PARK                        BY 655 PM EDT
TYRONE                            BY 705 PM EDT
BALD EAGLE                        BY 710 PM EDT
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IN A HOME
OR BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE.  AVOID
WINDOWSb.

JUNG

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Aug 15, 2:34 PM EDT, 4 hours 7 minutes earlier.

Area forecast discussion, Aug 15, 2:34 PM EDT, 4 hours 7 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
230 PM EDT FRI AUG 15 1997

...ZONES SUGGESTIONS...
NONE.

...DISCUSSION...

SAT WV PIX SHOW STRONG VORT MAX ASSOC WITH OCCLUDED LOW MOVING
THROUGH UPPER LAKES ATTM.  COMPOSITE RADAR PIX NICELY SHOWS
OCCLUDED STRUCTURE OF THIS SYSTEM WITH TRIPLE POINT OVER S
MICHIGAN.

SFC MAP SHOWS WARM FRONT ADVANCING INTO SW PA. FIRST BATCH OF RAIN
ASSOC W/ISENTROPIC LIFT NOW MOVING THRU CTP CWA WITH SECOND AREA OF
PRECIP OVER W OHIO. SOME EMBEDDED TSRA IN THIS SECOND BATCH WHICH
SHOULD MOVE INTO WESTERN CTP CWA AFTER 21Z. LDS SHOWED A LONE
LIGHTNING STRIKE LAST HOUR IN WARM SECTOR IN FAR SW PA. LATEST SAT
PIX AT 1745 SHOWING CELL FIRING UP IN S OHIO.  THIS IS THE JUICY
AIR THAT WILL GET HERE OVERNIGHT.

A LOOK AT MODEL SOUNDINGS FROM UNV AND MDT INDICATES THAT WITH
PLENTY OF SUN TOMORROW AFT...LATE DAY THUNDERSTORMS CAN GET GOING.
WINDEX EVEN SUGGESTS POTENTIAL DAMAGING WINDS...BUT STRENGTH OF UPR
LEVEL RIDGING MAY BE AN INHIBITING FACTOR.

BELIEVE THE NEXT REAL THREAT FOR SVR WILL BE SUNDAY AFT ACROSS
NORTHERN PA AS STRONG COLD FRNT SAGS SOUTH INTO VERY WARM MOIST AIR
MASS.

OSTUNO

In the hours before

Special weather statement, Aug 15, 4:39 PM EDT, 2 hours 2 minutes before
PAZ056-057-059-063>066-160230-

SPECIAL WEATHER STATEMENT - HOT WEATHER
NATIONAL WEATHER SERVICE STATE COLLEGE PA
439 PM EDT FRI AUG 15 1997

...HOT WEATHER WILL RETURN TO THE LOWER SUSQUEHANNA VALLEY THIS
WEEKEND...

...FORECAST DETAILS...
A WARM FRONT WILL LIFT NORHTWARD THROUGH PENNSYLVANIA
TONIGHT...AND ALLOW VERY WARM AND HUMID AIR TO OVERSPREAD
THE REGION THIS WEEKEND.  HIGH TEMPERATURES ACROSS THE LOWER
SUSQUEHANNA VALLEY WILL REACH 90 DEGREES SATURDAY...AND THE
MIDDLE 90S ON SUNDAY.  THESE HOT TEMPERATURES...COMBINED WITH
HIGH HUMIDITIES WILL PRODUCE HEAT INDEX VALUES AROUND 100 DEGREES
SATURDAY...AND 100 TO 105 DEGREES ON SUNDAY.

...PRECAUTIONS...
DURING TIMES OF HOT WEATHER...WEAR LIGHTWEIGHT...LIGHT COLORED
CLOTHING SINCE IT REFLECTS HEAT AND SUNLIGHT AND HELPS YOUR BODY
STAY COOLER.

YOU SHOULD EXERCISE CAUTION AND BE AWARE THAT THOSE MOST
SUSCEPTIBLE TO THE HEAT INCLUDE THE ELDERLY...SMALL CHILDREN...
THOSE IN POOR HEALTH...AND ANYONE WHO WORKS OR PLAYS OUTDOORS FOR
LONG PERIODS OF TIME.

...ADDITIONAL INFORMATION...
OFFICIAL NATIONAL WEATHER SERVICE FORECASTS...STATEMENTS...
WATCHES...WARNINGS AND ADVISORIES FOR PENNSYLVANIA CAN BE FOUND
ON THE WORLD WIDE WEB AT THE FOLLOWING ADDRESS:
HTTP://IWIN.NWS.NOAA/GOV/IWIN/PA/PA.HTML
OR  140.90.6.254/IWIN/PA/PA.HTML

JUNG
Special weather statement, Aug 15, 4:41 PM EDT, 2 hours before
PAZ056-057-059-063>066-160230-

SPECIAL WEATHER STATEMENT - HOT WEATHER
NATIONAL WEATHER SERVICE STATE COLLEGE PA
439 PM EDT FRI AUG 15 1997

...HOT WEATHER WILL RETURN TO THE LOWER SUSQUEHANNA VALLEY THIS
WEEKEND...

...FORECAST DETAILS...
A WARM FRONT WILL LIFT NORHTWARD THROUGH PENNSYLVANIA
TONIGHT...AND ALLOW VERY WARM AND HUMID AIR TO OVERSPREAD
THE REGION THIS WEEKEND.  HIGH TEMPERATURES ACROSS THE LOWER
SUSQUEHANNA VALLEY WILL REACH 90 DEGREES SATURDAY...AND THE
MIDDLE 90S ON SUNDAY.  THESE HOT TEMPERATURES...COMBINED WITH
HIGH HUMIDITIES WILL PRODUCE HEAT INDEX VALUES AROUND 100 DEGREES
SATURDAY...AND 100 TO 105 DEGREES ON SUNDAY.

...PRECAUTIONS...
DURING TIMES OF HOT WEATHER...WEAR LIGHTWEIGHT...LIGHT COLORED
CLOTHING SINCE IT REFLECTS HEAT AND SUNLIGHT AND HELPS YOUR BODY
STAY COOLER.

YOU SHOULD EXERCISE CAUTION AND BE AWARE THAT THOSE MOST
SUSCEPTIBLE TO THE HEAT INCLUDE THE ELDERLY...SMALL CHILDREN...
THOSE IN POOR HEALTH...AND ANYONE WHO WORKS OR PLAYS OUTDOORS FOR
LONG PERIODS OF TIME.

...ADDITIONAL INFORMATION...
OFFICIAL NATIONAL WEATHER SERVICE FORECASTS...STATEMENTS...
WATCHES...WARNINGS AND ADVISORIES FOR PENNSYLVANIA CAN BE FOUND
ON THE WORLD WIDE WEB AT THE FOLLOWING ADDRESS:
HTTP://IWIN.NWS.NOAA/GOV/IWIN/PA/PA.HTML
OR  140.90.6.254/IWIN/PA/PA.HTML

JUNG

The office that day

Everything else NWS State College, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 15, 6:20 PM EDTSevere Thunderstorm WarningCTPCambria40 min
Aug 15, 7:00 PM EDTTornado WarningCTPCentre65 min
Aug 15, 7:08 PM EDTSevere Thunderstorm WarningCTPHuntingdon47 min
Aug 15, 7:31 PM EDTSevere Thunderstorm WarningCTPMifflin49 min

Nearby

Tornado Warnings in Pennsylvania, 1997Every tornado warning in 1997Tornadoes in 1997

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.