Alert archive / Maine / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 2, NWS Gray, ME

June 7, 1990York County, Maine

NWS Gray, ME issued this severe thunderstorm warning at Jun 7, 1990, 2:09 PM EDT for York County, Maine. It was in force for 66 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 7, 1990, 2:09 PM EDT (18:09 UTC)
Expired
Jun 7, 1990, 3:15 PM EDT
In force
66 min
Issued by
NWS Gray, ME
Area
Whole counties

County York County, ME

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jun 7, 2:35 PM EDTHail 0.75York, ME
Jun 7, 3:00 PM EDTThunderstorm Wind 0York, ME

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 6.2 hours before the alert went out and 61 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.

Skew-T log-pSkew-T log-p diagram, Gray, ME at 12:00Z on 1990-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 12:00Z on 1990-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3570 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KPWM 071810
SVRPWM
MEC031-071915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PORTLAND ME
209 PM EDT THU JUN 7 1990
 
THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN  MAINE
          ...YORK
 
AT 2 PM EDT THE PORTLAND WEATHER RADAR INDICATES A SEVERE THUNDERSTORM
IN THE FRYEBURG-BROWNFIELD AREA. THIS THUNDERSTORM IS MOVING EAST
SOUTHEAST AROUND 45 MPH AND SHOULD PASS THROUGH THE WATERBORO AREA
AROUND 230 THIS AFTERNOON. OTHER THUNDERSTORMS IN THIS LINE HAVE HAD
LARGE HAIL...HEAVY DOWNPOURS AND FREQUENT LIGHTNING.
 
THIS IS A DANGEROUS STORM.  IgF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
 
SARDINHA

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 7, 12:13 PM EDT, 1 hour 56 minutes before
NHZALL-071900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CONCORD NH
1215 EDT THU JUN 7 1990

...SHOWERS AND THUNDERSTORMS MOVING ACROSS NEW HAMPSHIRE...

LATEST RADAR OBSEVATIONS SHOWED A LINE OF SHOWERS AND
THUNDERSTORMS EXTENDING FROM THE BERLIN AREA SOUTHWEST
INTO CENTRAL VERMONT.  ANOTHER SMALLER AREA OF SHOWERS AND
THUNDERSTORMS WAS NEAR CONCORD.  THE SHOWERS AND
THUNDERSTORMS WERE MOVING SOUTHEAST AT ABOUT 30 MPH.
THE ACTIVITY IS EXPECTED TO MOVE OFF THE COAST BY MID
AFTERNOON.

SOME THUNDERSTORMS WILL BE ACOMPANIED BY BRIEF HEAVY RAIN
...AND POSSIBLY SOME SMALL HAIL.

JTP
Special weather statement, Jun 7, 12:45 PM EDT, 1 hour 24 minutes before
MEZALL-040000-
SPECIAL WEATHER STATEMENT AND STATE WEATHER SUMMARY
NATIONAL WEATHER SERVICE PORTLAND ME
1245 PM EDT THU JUN 07 1990

   ...THUNDERSTORMS MOVING ACROSS MAINE...

AT 1230 THIS AFTERNOON...THE PORTLAND WEATHER RADAR INDICATED A LINE OF
THUNDERSTORMS FROM DOVER-FOXCROFT MAINE SOUTHWESTWARD TO MONTPELIER
VERMONT.  THIS LINE OF SHOWERS AND THUNDERSTORMS ARE INTENSIFYING AS
THEY MOVE EAST AROUND 45 MPH.

SOME OF THESE THUNDERSTORMS HAVE THE POTENTIAL OF PRODUCING HAIL...
DAMAGING WINDS...HEAVY DOWNPOURS AND FREQUENT LIGHTNING.

SARDINHA

The office that day

Everything else NWS Gray, ME issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 7, 1:43 PM EDTSevere Thunderstorm WarningGYXAndroscoggin62 min

Nearby

Severe Thunderstorm Warnings in Maine, 1990Every severe thunderstorm warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.