WWUS9 KMKC 161436 SEL9 MKC WW 161436 NYZ000-PAZ000-LEZ000-162100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 689 STORM PREDICTION CENTER NORMAN OK 1036 AM EDT SAT AUG 16 1997 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF WESTERN AND CENTRAL NEW YORK NORTHWESTERN AND NORTH CENTRAL PENNSYLVANIA EASTERN LAKE ERIE EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 1100 AM UNTIL 500 PM EDT. HAIL TO 1 1/2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 95 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 65 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST SOUTHWEST OF ERIE PENNSYLVANIA TO BINGHAMTON NEW YORK. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION... CONTINUE...WW 688... DISCUSSION...THUNDERSTORM CLUSTER CONTINUES TO EXHIBIT PRONOUNCED BOW ECHO CHARACTER AS IT ADVANCES INTO MODERATELY UNSTABLE AIR MASS. 50 TO 60 KT FLOW AND DRY AIR AT MID LEVELS INDICATES CONTINUED POTENTIAL FOR VERY DAMAGING DOWNBURSTS. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 1/2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 27045. ...ROGASH ;425,0803 430,0755 411,0755 410,0803;
WWUS9 KMKC 161841 SEL1 MKC WW 161841 PAZ000-NYZ000-NJZ000-CTZ000-170100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 691 STORM PREDICTION CENTER NORMAN OK 241 PM EDT SAT AUG 16 1997 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF EASTERN PENNSYLVANIA SOUTHEASTERN NEW YORK NORTHERN AND CENTRAL NEW JERSEY SOUTHWESTERN CONNECTICUT AND ADJACENT COASTAL WATERS EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 300 PM UNTIL 900 PM EDT. HAIL TO 1 1/2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 60 STATUTE MILES EITHER SIDE OF A LINE FROM 25 MILES WEST OF WILLIAMSPORT PENNSYLVANIA TO 15 MILES SOUTH OF ISLIP NEW YORK. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES SEVERE THUNDERSTORM WATCH NUMBER 689. WATCH NUMBER 689 WILL NOT BE IN EFFECT AFTER 300 PM EDT. CONTINUE...WW 690... DISCUSSION...THUNDERSTORM CLUSTER...WITH A HISTORY OF WIDESPREAD WIND DAMAGE...WILL CONTINUE MOVING EASTWARD INTO VERY UNSTABLE AIR WITH CAPES ABOVE 3000 J/KG. 40 TO 50 KT FLOW AND DRY AIR AT MID LEVELS WILL MAINTAIN HIGH WIND POTENTIAL. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 1/2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 27040. ...ROGASH ;420,0771 412,0725 394,0731 402,0773;
WWUS9 KMKC 161947 SEL2 MKC WW 161947 OHZ000-PAZ000-LEZ000-170200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 692 STORM PREDICTION CENTER NORMAN OK 347 PM EDT SAT AUG 16 1997 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN AND CENTRAL OHIO NORTHWESTERN PENNSYLVANIA LAKE ERIE EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 415 PM UNTIL 1000 PM EDT. HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 55 STATUTE MILES EITHER SIDE OF A LINE FROM 70 MILES WEST OF COLUMBUS OHIO TO 30 MILES EAST SOUTHEAST OF ERIE PENNSYLVANIA. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION... CONTINUE...WW 690...WW 691... DISCUSSION...THUNDERSTORMS DEVELOPING RAPIDLY AHEAD OF UPPER VORT AXIS IN REGION OF VERY UNSTABLE AIR WITH CAPES AOA 4000 J/KG. DRY AIR AND 50 KT FLOW AT MID LEVELS INDICATES POTENTIAL OF DAMAGING WINDS AND LARGE HAIL. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 26040. ...ROGASH ;404,0844 423,0800 411,0790 391,0834;
WWUS9 KMKC 162311 SEL4 MKC WW 162311 PAZ000-WVZ000-170400- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 694 STORM PREDICTION CENTER NORMAN OK 711 PM EDT SAT AUG 16 1997 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF WESTERN PENNSYLVANIA NORTHERN PANHNDLE OF WEST VIRGINIA EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 730 PM UNTIL MIDNIGHT EDT. HAIL TO 1 1/4 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES EAST OF MORGANTOWN WEST VIRGINIA TO 20 MILES NORTH OF DUBOIS PENNSYLVANIA. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION... CONTINUE...WW 690...WW 691...WW 692...WW 693... DISCUSSION...THUNDERSTORMS SHOULD TURN MORE TOWARD THE SE DURG THE NEXT FEW HOURS ALONG OUTFLOW BOUNDARY FROM CONVECTION EARLIER IN THE DAY. MAIN THREAT IS DAMAGING WINDS. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 1/4 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 28030. ...VESCIO ;393,0805 412,0802 412,0772 393,0775;
