Alert archive / Massachusetts / Flash Flood Warnings in 1998
Flash Flood Warning 53, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Jun 30, 1998, 10:14 AM EDT for Bristol County, Norfolk County, Massachusetts. 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 30, 1998, 10:14 AM EDT (14:14 UTC)
- Expired
- Jun 30, 1998, 2:15 PM EDT
- In force
- 4 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
Counties Bristol County, MA, Norfolk County, MA
The radar
The Boston radar (KBOX), 1 km from the middle of the area, began a volume at 14:17 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
Chatham, MA (KCHH), launched 12:00Z, 2.2 hours before the alert went out and 102 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
- 957 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 536 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBOS 301414 FFWBOS MAC005-021-301815- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TAUNTON MA 1014 AM EDT TUE JUN 30 1998 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * FLASH FLOOD WARNING FOR... WESTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS NORTHERN BRISTOL MA COUNTY IN SOUTHEASTERN MASSACHUSETTS * UNTIL 215 PM EDT * AT 10 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN FROM CENTRAL CONNECTICUT NORTHEASTWARD THROUGH NORFOLK AND NORTHERN BRISTOL COUNTIES... MOVING NORTHEAST AT 20 MPH. * TORRENTIAL RAINS OF NEARLY 3 INCHES HAVE ALREADY FALLEN IN MANSFIELD. MORE RAIN WILL BE MOVING THROUGH DURING THE NEXT 2 HOURS WITH TOTAL AMOUNTS IN EXCESS OF 5 INCHES POSSIBLE IN WESTERN NORFOLK AND NORTHERN BRISTOL COUNTIES. TOWNS WHICH WILL LIKELY BE IMPACTED INCLUDE ATTLEBORO...NORTH ATTLEBORO... MANSFIELD...EASTON...FOXBORO ALONG WITH SHARON AND PLAINVILLE. SMALL RIVERS AND STREAMS WILL LIKELY RISE RAPIDLY OVER THEIR BANKS THROUGH MID AFTERNOON. BE READY TO TAKE ACTION QUICKLY SHOULD SMALL RIVERS AND STREAMS BEGIN TO FLOOD. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VALLEE/VALLIER-TALBOT
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.
In the hours before
Special weather statement, Jun 30, 4:40 AM EDT, 5 hours 34 minutes before
MAZ002>024-RIZALL-CTZ002>004-NHZ011>012-310000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE BOSTON MA 440 AM EDT TUE JUN 30 1998 ...HEAVY RAINS AND SEVERE WEATHER POSSIBLE FOR SOUTHERN NEW ENGLAND TODAY... SHOWERS AND THUNDERSTORMS WILL BECOME MORE NUMEROUS AS THE MORNING PROGRESSES. THESE STORMS WILL BRING ANOTHER ROUND OF HEAVY RAINS TO THE REGION WITH MOST AREAS RECEIVING BETWEEN 1 AND 2 INCHES OF RAIN BY EVENING. SOME ISOLATED AMOUNTS OF 3 INCHES OR MORE ARE POSSIBLE CAUSING LOCALIZED STREET FLOODING AND SMALL RIVERS AND STREAMS TO RISE RAPIDLY. IN ADDITION TO HEAVY RAIN...SEVERE WEATHER IS ALSO A THREAT TODAY. THESE THUNDERSTORMS MAY PRODUCE STRONG DAMAGING WINDS. LOW PRESSURE OVER SOUTHERN QUEBEC HAS A FRONT EXTENDING TO ITS SOUTHWEST ACROSS THE ST LAWRENCE VALLEY. THIS LOW IS FORECAST TO STRENGTHEN AS IT SLIPS SOUTH ACROSS NEW ENGLAND TODAY AND TONIGHT. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR THE LATEST FORECASTS...WATCHES AND WARNINGS FROM THE NATIONAL WEATHER SERVICE. OSIENSKY
Special weather statement, Jun 30, 9:30 AM EDT, 44 minutes before
MAZ002>024-RIZALL-CTZ002>004-NHZ011>012-ANZ230>237-250-255-010000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE BOSTON MA 930 AM EDT TUE JUN 30 1998 ...ONE-TWO PUNCH OF HAZARDOUS WEATHER FOR SOUTHERN NEW ENGLAND TODAY... AN AREA OF HEAVY SHOWERS AND THUNDERSTORMS WILL SLOWLY PASS THROUGH SOUTHERN NEW ENGLAND THIS MORNING. THESE STORMS WILL BRING BETWEEN 1 AND 2 INCHES OF RAIN BY EARLY AFTERNOON ACROSS MOST OF SOUTHERN NEW ENGLAND...WITH SOME 3 TO 4 INCH TOTALS POSSIBLE. EARLIER THIS MORNING...TWO INCHES OF RAIN IN ONE HOUR WAS REPORTED IN SOUTHEASTERN MASSACHUSETTS BETWEEN 730 AM AND 830 AM. THESE TORRENTIAL RAINS WILL CAUSE LOCALIZED STREET FLOODING AND SMALL RIVERS AND STREAMS TO RISE RAPIDLY THIS MORNING AND EARLY THIS AFTERNOON...BRINGING ON THE POTENTIAL FOR FLASH FLOODING. THERE SHOULD BE A BRIEF RESPITE FROM PRECIPITATION FOR AWHILE EARLY THIS AFTERNOON. HOWEVER...SHOWERS AND THUNDERSTORMS WILL REDEVELOP IN MID-TO-LATE AFTERNOON...POSING A THREAT OF SEVERE WEATHER FOR LATE THIS AFTERNOON AND EARLY THIS EVENING. SOME OF THESE THUNDERSTORMS MAY PRODUCE STRONG DAMAGING WINDS AND HAIL...ALONG WITH THE POTENTIAL OF FLASH FLOODING. THE MOST LIKELY AREA FOR SEVERE WEATHER ASSOCIATED WITH THESE THUNDERSTORMS WILL BE IN EASTERN MASSACHUSETTS...INCLUDING CAPE COD AND THE ISLANDS...AND RHODE ISLAND. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR THE LATEST FORECASTS...WATCHES AND WARNINGS FROM THE NATIONAL WEATHER SERVICE. JL
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 11:27 AM EDT | Flash Flood Warning | BOX | Norfolk, Plymouth | 4 hr |
Nearby
Flash Flood Warnings in Massachusetts, 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; radar from the NEXRAD Level II archive.