Alert archive / Pennsylvania / Flash Flood Warnings in 1998
Flash Flood Warning 95, NWS State College, PA
NWS State College, PA issued this flash flood warning at Jun 26, 1998, 2:30 PM EDT for 4 counties in Pennsylvania. It was in force for 4 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
- Jun 26, 1998, 2:30 PM EDT (18:30 UTC)
- Expired
- Jun 26, 1998, 6:30 PM EDT
- In force
- 4 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Dauphin County, PA, Lancaster County, PA, Lebanon County, PA, York County, PA
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.5 hours before the alert went out and 89 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
- 507 J/kg
- Mixed-layer CIN
- -148 J/kg
- Mixed-layer LCL
- 1558 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCTP 261830 FFWCTP PAC043-071-075-107-133-262230- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 230 PM EDT FRI JUN 26 1998 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A * FLASH FLOOD WARNING FOR... SCHUYLKILL COUNTY IN EAST CENTRAL PENNSYLVANIA SOUTHERN DAUPHIN COUNTY IN SOUTH CENTRAL PENNSYLVANIA LEBANON COUNTY IN EAST CENTRAL PENNSYLVANIA NORTHERN YORK COUNTY IN SOUTH CENTRAL PENNSYLVANIA NORTHWESTERN LANCASTER COUNTY IN SOUTHEASTERN PENNSYLVANIA * UNTIL 630 PM EDT * AT 230 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN NEAR MIDDLETOWN...MOVING SLOWLY SOUTHEAST. * THUNDERSTORMS OVER THE PAST COUPLE HOURS HAVE PRODUCED LOCALLY HEAVY RAIN. SATURATED GROUNDS FROM PREVIOUS RAINFALL HAS MADE THIS AREA SUSCEPTIBLE TO FLASH FLOODING. DOPPLER ESTIMATES OF ONE TO TWO INCHES HAVE OCCURED IN THE PAST HOUR. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! BOOKBINDER/GRUMM/ONDREJIK
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Jun 26, 1:55 PM EDT, 35 minutes earlier.
Area forecast discussion, Jun 26, 1:55 PM EDT, 35 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 155 PM EDT FRI JUN 26 1998 CELLS DROPPING SOUTHEAST...A FEW REPORTS OF SEVERE...BUT NOT MUCH YET. STILL TRYING TO GET RADAR UP. WILL NOT BE DOING AFTERNOON ZNS. CONDITIONS SHOULD IMPROVE BY LATE EVENING. MARTIN
In the hours before
Special weather statement, Jun 26, 10:45 AM EDT, 3 hours 45 minutes before
PAZ056-057-059-063>066-262200- SPECIAL WEATHER STATEMENT - HEAT ADVISORY NATIONAL WEATHER SERVICE STATE COLLEGE PA 1045 AM EDT FRI JUN 26 1998 ...THE NATIONAL WEATHER SERVICE HAS CONTINUED THE HEAT ADVISORY FOR THE LOWER SUSQUEHANNA VALLEY IN PENNSYLVANIA FOR THIS AFTERNOON... THE HEAT ADVISORY INCLUDES THE FOLLOWING COUNTIES... PERRY... DAUPHIN... LEBANON... CUMBERLAND... ADAMS... YORK... AND LANCASTER. ...FORECAST DETAILS... TEMPERATURES WILL CLIMB TO THE MID 90S THIS AFTERNOON WITH HIGH HUMIDITY LEVELS. THE COMBINATION OF THE HEAT AND HUMIDITY WILL LEAD TO HEAT INDEX VALUES OF AROUND 105 DEGREES FOR ONE TO TWO HOURS. THIS WILL CREATE A POTENTIALLY DANGEROUS SITUATION FOR THOSE WHO DON/T TAKE PREVENTATIVE MEASURES AGAINST THE HEAT THIS AFTERNOON. ...WEATHER SYNOPSIS... A HOT AND VERY HUMID AIR MASS WILL REMAIN OVER SOUTHEAST PENNSYLVANIA FOR TODAY. A WEAK COLD FRONT WILL SWEEP SOUTH OF PENNSYLVANIA TONIGHT AND USHER IN A SLIGHTLY COOLER AND LESS HUMID AIR MASS FOR SATURDAY. ...OTHER INFORMATION... IF YOU PLAN TO BE OUTSIDE THIS AFTERNOON...AVOID PROLONGED EXPOSURE OR STRENUOUS PHYSICAL ACTIVITY. REMEMBER TO DRINK PLENTY OF WATER AND AVOID ALCOHOLIC BEVERAGES. DRESS FOR THE HEAT AND TAKE FREQUENT BREAKS. THE HEAT INDEX IS A MEASURE OF THE COMBINED EFFECT OF HIGH TEMPERATURES AND HIGH HUMIDITIES ON THE BODY. HEAT EXHAUSTION AND BODY CRAMPS ARE LIKELY AT AND ABOVE 105 DEGREE HEAT INDICES... AND WITH PROLONGED EXPOSURE...HEAT STROKE IS POSSIBLE. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO...TV ...OR CABLE STATION...FOR THE LATEST WEATHER INFORMATION. MARTIN
Special weather statement, Jun 26, 10:45 AM EDT, 3 hours 45 minutes before
PAZ056-057-059-063>066-262200- SPECIAL WEATHER STATEMENT - HEAT ADVISORY NATIONAL WEATHER SERVICE STATE COLLEGE PA 1045 AM EDT FRI JUN 26 1998 ...THE NATIONAL WEATHER SERVICE HAS CONTINUED THE HEAT ADVISORY FOR THE LOWER SUSQUEHANNA VALLEY IN PENNSYLVANIA FOR THIS AFTERNOON... THE HEAT ADVISORY INCLUDES THE FOLLOWING COUNTIES... PERRY... DAUPHIN... LEBANON... CUMBERLAND... ADAMS... YORK... AND LANCASTER. ...FORECAST DETAILS... TEMPERATURES WILL CLIMB TO THE MID 90S THIS AFTERNOON WITH HIGH HUMIDITY LEVELS. THE COMBINATION OF THE HEAT AND HUMIDITY WILL LEAD TO HEAT INDEX VALUES OF AROUND 105 DEGREES FOR ONE TO TWO HOURS. THIS WILL CREATE A POTENTIALLY DANGEROUS SITUATION FOR THOSE WHO DON/T TAKE PREVENTATIVE MEASURES AGAINST THE HEAT THIS AFTERNOON. ...WEATHER SYNOPSIS... A HOT AND VERY HUMID AIR MASS WILL REMAIN OVER SOUTHEAST PENNSYLVANIA FOR TODAY. A WEAK COLD FRONT WILL SWEEP SOUTH OF PENNSYLVANIA TONIGHT AND USHER IN A SLIGHTLY COOLER AND LESS HUMID AIR MASS FOR SATURDAY. ...OTHER INFORMATION... IF YOU PLAN TO BE OUTSIDE THIS AFTERNOON...AVOID PROLONGED EXPOSURE OR STRENUOUS PHYSICAL ACTIVITY. REMEMBER TO DRINK PLENTY OF WATER AND AVOID ALCOHOLIC BEVERAGES. DRESS FOR THE HEAT AND TAKE FREQUENT BREAKS. THE HEAT INDEX IS A MEASURE OF THE COMBINED EFFECT OF HIGH TEMPERATURES AND HIGH HUMIDITIES ON THE BODY. HEAT EXHAUSTION AND BODY CRAMPS ARE LIKELY AT AND ABOVE 105 DEGREE HEAT INDICES... AND WITH PROLONGED EXPOSURE...HEAT STROKE IS POSSIBLE. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO...TV ...OR CABLE STATION...FOR THE LATEST WEATHER INFORMATION. MARTIN
Special weather statement, Jun 26, 11:15 AM EDT, 3 hours 15 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-262110- SPECIAL WEATHER STATEMENT- CONVECTIVE POTENTIAL OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 1115 AM EDT FRI JUN 26 1998 ...THERE IS A GOOD CHANCE FOR SEVERE THUNDERSTORMS ACROSS CENTRAL PENNSYLVANIA THIS AFTERNOON AND THIS EVENING... SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP EARLY THIS AFTERNOON ACROSS CENTRAL PENNSYLVANIA. SOME THUNDERSTORMS WILL LIKELY REACH SEVERE LIMITS...WITH STRONG DAMAGING WINDS OR LARGE HAIL. AN ISOLATED TORNADO COULD EVEN OCCUR WITH THE STRONGEST STORMS. THE STORMS COULD ORGANIZE INTO A SQUALL LINE BY MID OR LATE AFTERNOON...AND MOVE RAPIDLY SOUTHEAST FROM THE CENTRAL MOUNTAINS TOWARD SOUTHEAST PENNSYLVANIA. AGAIN...STRONG WINDS OR LARGE HAIL WOULD BE POSSIBLE WITH THE STRONGEST OF THESE STORMS...WITH AN ISOLATED TORNADO NOT OUT OF THE QUESTION. ALL PERSONS SHOULD CAREFULLY MONITOR THE WEATHER TO.DAY... AS THIS IS COULD BE A POTENTIALLY SIGNIFICANT SEVERE WEATHER EVENT. WATCHES WILL BE ISSUED WHEN SEVERE WEATHER BECOMES MORE LIKELY...AND WARNINGS WILL BE ISSUED WHEN SEVERE WEATHER IS OBSEVERED OR BECOMES IMMINENT. MSE
Special weather statement, Jun 26, 11:15 AM EDT, 3 hours 15 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-262110- SPECIAL WEATHER STATEMENT- CONVECTIVE POTENTIAL OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 1115 AM EDT FRI JUN 26 1998 ...THERE IS A GOOD CHANCE FOR SEVERE THUNDERSTORMS ACROSS CENTRAL PENNSYLVANIA THIS AFTERNOON AND THIS EVENING... SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP EARLY THIS AFTERNOON ACROSS CENTRAL PENNSYLVANIA. SOME THUNDERSTORMS WILL LIKELY REACH SEVERE LIMITS...WITH STRONG DAMAGING WINDS OR LARGE HAIL. AN ISOLATED TORNADO COULD EVEN OCCUR WITH THE STRONGEST STORMS. THE STORMS COULD ORGANIZE INTO A SQUALL LINE BY MID OR LATE AFTERNOON...AND MOVE RAPIDLY SOUTHEAST FROM THE CENTRAL MOUNTAINS TOWARD SOUTHEAST PENNSYLVANIA. AGAIN...STRONG WINDS OR LARGE HAIL WOULD BE POSSIBLE WITH THE STRONGEST OF THESE STORMS...WITH AN ISOLATED TORNADO NOT OUT OF THE QUESTION. ALL PERSONS SHOULD CAREFULLY MONITOR THE WEATHER TO.DAY... AS THIS IS COULD BE A POTENTIALLY SIGNIFICANT SEVERE WEATHER EVENT. WATCHES WILL BE ISSUED WHEN SEVERE WEATHER BECOMES MORE LIKELY...AND WARNINGS WILL BE ISSUED WHEN SEVERE WEATHER IS OBSEVERED OR BECOMES IMMINENT. MSE
Special weather statement, Jun 26, 11:55 AM EDT, 2 hours 35 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-262145- SPECIAL WEATHER STATEMENT- SEVERE THUNDERSTORM WATCH NATIONAL WEATHER SERVICE STATE COLLEGE PA 1155 AM EDT FRI JUN 26 1998 ...THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR ALL OF CENTRAL PENNSYLVANIA THROUGH 5 PM... A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CENTRAL PENNSYLVANIA THROUGH 5 PM INCLUDING THE FOLLOWING COUNTIES... MCKEAN...ELK...WARREN...SOMERSET...CLINTON...POTTER...UNION... CAMERON...LYCOMING...SNYDER...CENTRE...MONTOUR...SULLIVAN... CLEARFIELD...NORTHUMBERLAND...TIOGA...ADAMS...CUMBERLAND... HUNTINGDON...PERRY...BEDFORD...DAUPHIN...JUNIATA...YORK... BLAIR...FRANKLIN...LEBANON...CAMBRIA...FULTON...MIFFLIN... COLUMBIA...SCHUYLKILL...AND LANCASTER. SCATTERED STRONG TO SEVERE THUNDERSTORMS HAVE DEVELOPED ACROSS CENTRAL PENNSYLVANIA LATE THIS MORNING...WITH MOST OF THE STORMS THROUGH THE NOON HOUR LOCATED ALONG AND NORTH OF I-80. THOSE STORMS WILL CONTINUE TO TRACK EAST ACROSS THE REGION THROUGH MID- AFTERNOON...WITH THE THREAT FOR SEVERE WEATHER GRADUALLY EXPANDING SOUTH TOWARD THE SOUTHERN MOUNTAINS AND LOWER SUSQUEHANNA VALLEY BY MID-AFTERNOON. STRONG DAMAGING WINDS OR LARGE HAIL WILL BE POSSIBLE WITH THE STRONGEST STORMS THIS AFTERNOON...WITH A FEW ISOLATED TORNADOES ALSO NOT OUT OF THE QUESTION. SEVERE THUNDERSTORMS CONTAIN STRONG DAMAGING WINDS OF GREATER THAN 55 MPH...AND OR LARGE HAIL WITH A DIAMETER OF AT LEAST 3/4 OF AN INCH. ALL PERSONS IN THE WATCH AREA SHOULD CAREFULLY MONITOR THE WEATHER TODAY. BE PREPARED TO TAKE COVER IF WARNINGS ARE ISSUED. MSE
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 11:02 AM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 43 min |
| Jun 26, 11:26 AM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield, Elk | 74 min |
| Jun 26, 12:03 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Union | 92 min |
| Jun 26, 12:33 PM EDT | Severe Thunderstorm Warning | CTP | Snyder | 62 min |
| Jun 26, 1:22 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 33 min |
| Jun 26, 1:32 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster | 93 min |
| Jun 26, 1:56 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin | 79 min |
| Jun 26, 2:04 PM EDT | Severe Thunderstorm Warning | CTP | York | 81 min |
| Jun 26, 2:30 PM EDT | Flash Flood Warning | CTP | Schuylkill | 4 hr |
| Jun 26, 2:46 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 79 min |
Nearby
Flash Flood Warnings in Pennsylvania, 1998Every flash flood warning in 1998
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.