Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 20, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 18, 1994, 3:47 PM EDT for Middlesex County, Massachusetts. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Jun 18, 1994, 3:47 PM EDT (19:47 UTC)
- Expired
- Jun 18, 1994, 4:15 PM EDT
- In force
- 28 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Middlesex County, MA
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 7.8 hours before the alert went out and 148 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 978 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KBOS 181949 SVRBOX MAC017-182015- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 347 PM EDT SAT JUN 18 1994 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 415 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN MASSACHUSETTS ...WESTERN MIDDLESEX COUNTY AT 346 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER SHIRLEY AND AYER IN WESTERN MIDDLESEX COUNTY. THE STORM WAS DRIFTING SLOWLY TO THE SOUTH AT 5 MPH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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.
In the hours before
Special weather statement, Jun 18, 11:34 AM EDT, 4 hours 13 minutes before
CTZALL-RIZALL-MAZ002>019-181800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 1134 AM EDT SAT JUN 18 1994 ...POTENTIAL SEVERE THUNDERSTORMS FOR THIS AFTERNOON AND EARLY EVENING... THE POSSIBILITY OF SEVERE THUNDERSTORMS DEVELOPING OVER INLAND AREAS OF SOUTHERN NEW ENGLAND EXISTS THIS AFTERNOON AND EARLY THIS EVENING. AT 1100 AM THIS MORNING DOPPLER RADAR INDICATED THAT THUNDERSTORMS WERE DEVELOPING OVER SOUTHERN VERMONT AND THE CONNECTICUT RIVER VALLEY. THE COMBINATION OF VERY MOIST AIR AND HIGH TEMPERATURES WILL PRODUCE IDEAL CONDITIONS FOR THUNDERSTORM DEVELOPMENT...SOME OF WHICH MAY BE SEVERE. IF PLANNING OUTDOOR ACTIVITIES FOR THIS AFTERNOON AND EARLY EVENING PLEASE USE PRECAUTIONS FOR HIGH HEAT AND BE AWARE OF CHANGING WEATHER CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO AND THE LOCAL MEDIA FOR FURTHER UPDATES. KLEIN
Special weather statement, Jun 18, 2:46 PM EDT, 1 hour 1 minute before
MAZ002-003-008-010-182000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 248 PM EDT SAT JUN 16 1994 ...THE SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR CENTRAL HAMPSHIRE COUNTY HOWEVER...VERY HEAVY RAIN WAS OCCURING NEAR CONWAY STATE FOREST... THERE WERE NO REPORTS OF LARGE HAIL OR DAMAGING WIND WITH THIS STORM WHICH HAS BEEN NEARLY STATIONARY CLOSE TO WALNUT HILL NORTH OF WILLIAMBURG. ANYONE WITH RECREATIONAL INTEREST IN NORTH CENTRAL HAMPSHIRE COUNTY SHOULD BE ON THE ALERT FOR RAPIDLY RISING CREEKS AND STREAMS NEAR WALNUT HILL. RADAR INDICATED OVER 2 INCHES OF RAIN HAS FALLEN NEAR WALNUT HILL BETWEEN 140 AND 240 PM. DRAG
Special weather statement, Jun 18, 3:00 PM EDT, 47 minutes before
RIZ001>007-RIZ502-182000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PROVIDENCE RI 300 PM EDT SAT JUN 18 1994 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR NORTHERN RHODE ISLAND UNTIL 900 PM THIS EVENING... A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PROVIDENCE COUNTY OF NORTHERN RHODE ISLAND THIS AFTERNOON AND EVENING UNTIL 900 PM. THE WATCH MEANS THAT THE POTENTIAL EXISTS FOR SEVERE THUNDERSTORMS THAT COULD PRODUCE DAMAGING WINDS...LARGE HAIL AND DANGEROUS LIGHTNING. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO AND TELEVISION STATIONS FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS. MARSH
Special weather statement, Jun 18, 3:05 PM EDT, 42 minutes before
RIZ001>007-RIZ502-182000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PROVIDENCE RI 300 PM EDT SAT JUN 18 1994 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR NORTHERN RHODE ISLAND UNTIL 900 PM THIS EVENING... A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PROVIDENCE COUNTY OF NORTHERN RHODE ISLAND THIS AFTERNOON AND EVENING UNTIL 900 PM. THE WATCH MEANS THAT THE POTENTIAL EXISTS FOR SEVERE THUNDERSTORMS THAT COULD PRODUCE DAMAGING WIN DS...LARGE HAIL AND DANGEROUS LIGHTNING. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO AND TELEVISION STATIONS FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS. MARSH
Special weather statement, Jun 18, 3:08 PM EDT, 39 minutes before
MAZ004-005-006-007-012-013-014-015-016-017-018-019-501-504-182015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 308 PM EDT SAT JUN 18 1994 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM FOR ALL OF MASSACHUSETTS EXCEPT CAPE COD... AT 305 PM...DOPPLER RADAR INDICATED SCATTERED STRONG THUNDERSTORMS DEVELOPING IN NORTHWEST MIDDLESEX COUNTY NEAR PEPPERELL AND TOWNSEND. ANOTHER STRONG STORM HAD DEVELOPED IN EASTERN WORCESTER COUNTY NEAR WESTBORO AND GRAFTON. THE STORMS WERE MOVING TO THE SOUTH AT 15 MPH. RADAR ALSO INDICATED THAT THE SEA BREEZE EXTENDED FROM NEWTON AND DEDHAM SOUTHEASTWARD THROUGH RANDOLPH AND ON SOUTHEASTWARD TO NEAR CARVER IN PLYMOUTH COUNTY. THUNDERSTORMS MAY TEND TO DEVELOP AND MOVE ALONG THIS BOUNDARY AS THE AFTERNOON PROGRESSES. STAY TUNED FOR LATER STATEMENTS AND POSSIBLE WARNINGS. FIELD
Special weather statement, Jun 18, 3:09 PM EDT, 38 minutes before
MAZ004-005-006-007-012-013-014-015-016-017-018-019-501-504-182015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 308 PM EDT SAT JUN 18 1994 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM FOR ALL OF MASSACHUSETTS EXCEPT CAPE COD... AT 305 PM...DOPPLER RADAR INDICATED SCATTERED STRONG THUNDERSTORMS DEVELOPING IN NORTHWEST MIDDLESEX COUNTY NEAR PEPPERELL AND TOWNSEND. ANOTHER STRONG STORM HAD DEVELOPED IN EASTERN WORCESTER COUNTY NEAR WESTBORO AND GRAFTON. THE STORMS WERE MOVING TO THE SOUTH AT 15 MPH. RADAR ALSO INDICATED THAT THE SEA BREEZE EXTENDED FROM NEWTON AND DEDHAM SOUTHEASTWARD THROUGH RANDOLPH AND ON SOUTHEASTWARD TO NEAR CARVER IN PLYMOUTH COUNTY0. THUNDERSTORMS MAY TEND TO DEVELOP AND MOVE ALONG THIS BOUNDARY AS THE AFTERNOON PROGRESSES. STAY TUNED FOR LATER STATEMENTS AND POSSIBLE WARNINGS. FIELD
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 2:05 PM EDT | Severe Thunderstorm Warning | BOX | Hampshire | 40 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 1994Every severe thunderstorm warning in 1994
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.