Alert archive / New Jersey / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 119, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 17, 1998, 7:25 PM EDT for Hunterdon County, Warren County, New Jersey. It was in force for 60 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
- Jul 17, 1998, 7:25 PM EDT (23:25 UTC)
- Expired
- Jul 17, 1998, 8:25 PM EDT
- In force
- 60 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Hunterdon County, NJ, Warren County, NJ
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 11.4 hours before the alert went out and 177 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
- 256 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 942 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
845 WUUS1 KPHL 172326 RRA SVRPHL NJC019-041-180025- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 725 PM EDT FRI JUL 17 1998 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN WARREN COUNTY IN NEW JERSEY WESTERN HUNTERDON COUNTY IN NEW JERSEY * UNTIL 825 PM EDT * AT 721 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED 5 MILES SOUTHEAST OF EASTON PENNSYLVANIA...BY NATIONAL WEATHER SERVICE DOPPLER RADAR... MOVING EAST NORTHEAST 15 MPH. THIS IS A DANGEROUS STORM. MOVE INSIDE A STRONG BUILDING AND DO NOT STAND NEAR WINDOWS. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. DO NOT DRIVE YOUR CAR WHERE WATER COVERS THE ROADWAY. THE WATER MAY BE DEEPER THAN YOU THINK. IF CAUGHT IN RISING FLOOD WATERS... ABANDON YOUR CAR QUICKLY AND MOVE TO HIGHER GROUND. FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION OUTLET. MR/NPC
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 Philadelphia/Mount Holly wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 17, 2:07 PM EDT, 5 hours 18 minutes earlier.
Area forecast discussion, Jul 17, 2:07 PM EDT, 5 hours 18 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 207 PM EDT FRI JUL 17 1998 ...ZONES TO BE SENT TO PIT/PHL VIA ADMCTP BY 230 PM... ...DISCUSSION... MAIN FCST PROBLM...HOW TO DEAL W/PCPN TONIGHT. SCT TSRA POPPING ATTM ACRS CENT MTNS. STRMS FEEDING ON UPR 60S AND LWR 70S DWPTS...AND GOOD DRY AIR INTRUSION AT MID LVLS. SPEED MAX/JET STREAK EVIDENT ON WV LOOP FM SW TO NE DIRECTLY OVR CENT PA ATTM...AS FNT ANALYZED EARLIER ON SFC ANALYSIS IN OH/WRN PA HAS MOVD E. FNT SHWS UP BEST IN SFC WND FIELD. SFC DRY AIR OVR CENT OH EARLIER HAS NOT YET MADE IT INTO WRN PA. WV ALSO DEPICTS STRONG VORT MAX OVR GRT LKS MOVG ESE INTO SRN ONT. ALL PROGGED TO PUSH ACRS PA THIS AFT/EVE. GETTING PETTY ON THE TIMING MAY NOT BE EASY...SO WL PROB LEAVE TIMING OUT IN NRN ZNS. SRN ZNS WL LIKELY HAVE DISTINCT END...AS GRT LKS S/W ENERGY STAYS TO N OF THOSE CTYS. LIKED ETA SOLN BETTER TDY...AS BIG THREE MODELS INITIALIZED SIMILARLY. BUT...NGM PUMPS OUT PCPN DURING THE DAY SAT OVR WRN PA. ETA POOLS THTE ARND BWI/LWR SUSQ IN ERLY PDS. THIS SEEMS VERY LIKELY AS FNT DRAGS E/W LATER TNGHT S OF MASON/DIXON LN. COOLER...BUT NOT MUCH...ON SAT AND HUMIDITIES MUCH LWR. TRAJECTORIES FOR SAT COMING DOWN FM LK SUP/E WISCONSIN! LCL CU RULE INDICATES VERY STABLE LWR LYRS ON SAT OVER FA W/SCT CU AT BEST. MO SUNNY WRDNG BEST. TEMPS W/SS WILL RISE WELL. MDL SNDG FOR UNV GIVES MAX IN LWR 80S (HIER THAN FWC). SAME DEAL FOR IPT GIVES BARELY COOLER VALUES THAN DO FWC/FAN THO. WL LIKELY GO W/FAN AS STRONG JULY SS FACTORS BIG. POPS UNLIKELY IN LAST THREE PDS...BUT LIKELY TO NEARLY CAT IN FIRST PD. AGREE W/PITS SFD COMMENT ON LEAVING OUT POPS FOR SUNDAY ATTM...BUT MOIST RETURN FLOW IS RAPID. THIS DRY SHOT WILL BE SHORT-LIVED. .CTP...NONE DANGELO
In the hours before
Special weather statement, Jul 17, 2:15 PM EDT, 5 hours 10 minutes before
NJZ020-021-172200- SPECIAL WEATHER STATEMENT - HEAVY RAINFALL NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 215 PM EDT FRI JUL 17 1998 AT 200 PM NATIONAL WEATHER SERVICE RADAR AND SATELLITE DATA INDICATE HEAVY THUNDERSTORMS OVER PORTIONS OF ATLANTIC AND OCEAN COUNTIES. THESE STORMS ARE VERY SLOW MOVING AND LIKELY HAVE PRODUCED RAINFALL IN EXCESS OF THREE INCHES. ONE AFFECTED LOCATION IS OVER SOUTHERN ATLANTIC COUNTY IN AN AREA BOUNDED BY MAYS LANDING...ESTELL MANOR...AND OCEAN CITY. HEAVY RAIN IS ALSO OCCURRING OVER SOUTHERN OCEAN COUNTY IN AN AREA ALONG THE GARDEN STATE PARKWAY BETWEEN EXITS 58 AND 63...OR BETWEEN TUCKERTON...WARREN GROVE AND WARETOWN. IF THIS HEAVY RAIN CONTINUES SOME FLOODING OF SMALL STREAMS AND ROADWAYS IS POSSIBLE. AT THE LEAST...MOTORIST SHOULD BE ALERT FOR SUDDEN REDUCED VISIBILITY AND PONDING OF WATER ON STREETS. FOR THE LATEST WEATHER CONDITIONS...FORECASTS...AND ANY WARNINGS WHICH MAY BE ISSUED...STAY TUN:ED TO YOUR LOCAL NOAA WEATHER RADIO STATION. WEATHER INFORMATION IS ALSO AVAILABLE ON OUR INTERNET HOME PAGE AT www.nws.noaa.gov/er/phi AMC/MR
Special weather statement, Jul 17, 2:15 PM EDT, 5 hours 10 minutes before
NJZ020-021-172200- SPECIAL WEATHER STATEMENT - HEAVY RAINFALL NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 215 PM EDT FRI JUL 17 1998 AT 200 PM NATIONAL WEATHER SERVICE RADAR AND SATELLITE DATA INDICATE HEAVY THUNDERSTORMS OVER PORTIONS OF ATLANTIC AND OCEAN COUNTIES. THESE STORMS ARE VERY SLOW MOVING AND LIKELY HAVE PRODUCED RAINFALL IN EXCESS OF THREE INCHES. ONE AFFECTED LOCATION IS OVER SOUTHERN ATLANTIC COUNTY IN AN AREA BOUNDED BY MAYS LANDING...ESTELL MANOR...AND OCEAN CITY. HEAVY RAIN IS ALSO OCCURRING OVER SOUTHERN OCEAN COUNTY IN AN AREA ALONG THE GARDEN STATE PARKWAY BETWEEN EXITS 58 AND 63...OR BETWEEN TUCKERTON...WARREN GROVE AND WARETOWN. IF THIS HEAVY RAIN CONTINUES SOME FLOODING OF SMALL STREAMS AND ROADWAYS IS POSSIBLE. AT THE LEAST...MOTORIST SHOULD BE ALERT FOR SUDDEN REDUCED VISIBILITY AND PONDING OF WATER ON STREETS. FOR THE LATEST WEATHER CONDITIONS...FORECASTS...AND ANY WARNINGS WHICH MAY BE ISSUED...STAY TUN:ED TO YOUR LOCAL NOAA WEATHER RADIO STATION. WEATHER INFORMATION IS ALSO AVAILABLE ON OUR INTERNET HOME PAGE AT www.nws.noaa.gov/er/phi AMC/MR
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 4:51 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 34 min |
| Jul 17, 5:09 PM EDT | Severe Thunderstorm Warning | PHI | Camden | 31 min |
| Jul 17, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 48 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 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.