Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 126, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 26, 1998, 11:26 AM EDT for Centre County, Clearfield County, Elk County, Pennsylvania. It was in force for 74 min. 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, 11:26 AM EDT (15:26 UTC)
- Expired
- Jun 26, 1998, 12:40 PM EDT
- In force
- 74 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Centre County, PA, Clearfield County, PA, Elk County, PA
The radar
The State College radar (KCCX), 34 km from the middle of the area, began a volume at 15:35 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 12:00Z, 3.4 hours before the alert went out and 170 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
- 3262 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 666 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 214 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 3.4
- Supercell composite
- 15.4
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 26, 8:35 AM EDT, 2 hours 51 minutes earlier.
Area forecast discussion, Jun 26, 8:35 AM EDT, 2 hours 51 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 835 AM EDT FRI JUN 26 1998 ...WRKZNS OUT SHORTLY... LOOKS LIKE BACK EDGE MOVING ALONG...SHOULD BE OK WITHOUT FLOOD WATCH ACROSS NE AREAS FOR NOW. HEAT ADV. OK. AIRMASS VERY UNSTABLE...WILL GET WRKZNS OUT FAIRLY QUICKLY. WHILE MAIN ACTION MAY BE LATER...WILL NOT GET TOO FANCY...AS ISOLATED ACTION MAY FLARE UP NOW AND THEN. OUTFLOWS FROM MCS ANIMALS WILL PLAY A LARGE PART IN LOCATION OF AFTERNOON CONVECTION. ANY QUESTIONS...PLEASE CALL. MARTIN
In the hours before
Special weather statement, Jun 26, 10:45 AM EDT, 41 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, 41 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, 11 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, 11 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
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, 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 | Dauphin, Lancaster, Lebanon, York | 4 hr |
| 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
Severe Thunderstorm Warnings in Pennsylvania, 1998Every severe thunderstorm 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; radar from the NEXRAD Level II archive.