Alert archive / Maine / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 13, NWS Gray, ME

June 18, 1994Piscataquis County, Maine

NWS Gray, ME issued this severe thunderstorm warning at Jun 18, 1994, 3:10 PM EDT for Piscataquis County, Maine. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Jun 18, 1994, 3:10 PM EDT (19:10 UTC)
Expired
Jun 18, 1994, 4:15 PM EDT
In force
65 min
Issued by
NWS Gray, ME
Area
Whole counties

County Piscataquis County, ME

The nearest sounding before it

Caribou, ME (KCAR), launched 12:00Z, 7.2 hours before the alert went out and 151 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, Caribou, ME at 12:00Z on 1994-06-18Temperature 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, Caribou, ME at 12:00Z on 1994-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.193958Sfc1 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
1234 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KPWM 181912 RRA
SVRPWM
MEC021-182015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PORTLAND ME
310 PM EDT SAT JUN 18 1994
 
THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN  MAINE
 
   ...SOUTHERN PISCATAQUIS COUNTY
 
NATIONAL WEATHER SERVICE RADARS INDICATE A SEVERE THUNDERSTORM NEAR
WILLIMANTIC IN SOUTHERN PICATAQUIS COUNTY WHICH IS MOVING TOWARD DOVER
FOXCROFT. THIS DANGEROUS STORM MAY HAVE LARGE HAIL...FREQUENT LIGHTNING
...DAMAGING WIND AND HEAVY RAIN.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
BERMAN

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, 10:30 AM EDT, 4 hours 40 minutes before
NHZALL-190200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CONCORD NH
1030 AM EDT SAT JUN 18 1994

OPPRESSIVE HEAT AND HUMIDITY WILL PERSIST THROUGH THE DAY ONCE AGAIN
OVER THE GRANITE STATE.  TEMPERATURES THIS AFTERNOON WILL RANGE FROM
NEAR 90 OVER THE FAR NORTH TO APPROACHING 100 OVER PARTS OF THE
SOUTHERN INTERIOR.  THESE TEMPERATURES COMBINED WITH THE EXTREME
HUMIDITY WILL PRODUCE A HEAT INDEX BETWEEN 100 AND 110 DEGREES OVER
MUCH OF THE STATE DURING THE AFTERNOON.

THE HEAT INDEX IS A MEASURE OF HOW THE BODY SENSES THE COMBINED EFFECT
OF HEAT AND HUMIDITY.  HEAT CRAMPS AND HEAT EXHAUSTION ARE POSSIBLE IF
YOU ARE OUTDOORS FOR AN EXTENDED PERIOD OF TIME...THE THREAT IS EVEN
GREATER IF YOU ARE PERFORMING STRENUOUS PHYSICAL ACTIVITY.

IF YOU PLAN TO BE OUTDOORS THIS AFTERNOON...AVOID PROLONGED EXPOSURE
TO THE SUN AND STRENUOUS PHYSICAL ACTIVITY.  REMEMBER TO DRINK PLENTY
OF FLUIDS...AVOIDING ALCOHOLIC BEVERAGES.  CHECK ON THE ELDERLY...
SMALL CHILDREN...AND INDIVIDUALS IN POOR HEALTH...WHO CAN BE MORE
SUSCEPTIBLE TO THE EFFECTS OF HIGH HEAT AND HUMIDITY.

NOGUEIRA/WSO CONCORD

WSUS40KMKC.
Special weather statement, Jun 18, 10:30 AM EDT, 4 hours 40 minutes before
NHZALL-190200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CONCORD NH
1030 AM EDT SAT JUN 18 1994

OPPRESSIVE HEAT AND HUMIDITY WILL PERSIST THROUGH THE DAY ONCE AGAIN
OVER THE GRANITE STATE.  TEMPERATURES THIS AFTERNOON WILL RANGE FROM
NEAR 90 OVER THE FAR NORTH TO APPROACHING 100 OVER PARTS OF THE
SOUTHERN INTERIOR.  THESE TEMPERATURES COMBINED WITH THE EXTREME
HUMIDITY WILL PRODUCE A HEAT INDEX BETWEEN 100 AND 110 DEGREES OVER
MUCH OF THE STATE DURING THE AFTERNOON.

THE HEAT INDEX IS A MEASURE OF HOW THE BODY SENSES THE COMBINED EFFECT
OF HEAT AND HUMIDITY.  HEAT CRAMPS AND HEAT EXHAUSTION ARE POSSIBLE IF
YOU ARE OUTDOORS FOR AN EXTENDED PERIOD OF TIME...THE THREAT IS EVEN
GREATER IF YOU ARE PERFORMING STRENUOUS PHYSICAL ACTIVITY.

IF YOU PLAN TO BE OUTDOORS THIS AFTERNOON...AVOID PROLONGED EXPOSURE
TO THE SUN AND STRENUOUS PHYSICAL ACTIVITY.  REMEMBER TO DRINK PLENTY
OF FLUIDS...AVOIDING ALCOHOLIC BEVERAGES.  CHECK ON THE ELDERLY...
SMALL CHILDREN...AND INDIVIDUALS IN POOR HEALTH...WHO CAN BE MORE
SUSCEPTIBLE TO THE EFFECTS OF HIGH HEAT AND HUMIDITY.

NOGUEIRA/WSO CONCORD

WSUS40KMKC.
Special weather statement, Jun 18, 12:49 PM EDT, 2 hours 21 minutes before
NHZ001-002-191800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CONCORD NH
1250 PM EDT SAT JUN 18 1994

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF NEW HAMSPHIRE
EXCEPT THE EXTREME SOUTHEAST...

AT 1250 PM RADAR INDICATED A LINE OF DEVELOPING THUNDERSTORMS FROM NEAR
LANCASTER NORTHEAST TO NEAR UMBAGOG LAKE.  AS THESE STORMS TRACK TO THE
SOUTHEAST AT ABOUT 20 MPH THEY MAY BE ACCOMPANIED BY GUSTY WINDS...
VERY HEAVY RAIN AND POSSIBLY HAIL.

IF YOU SEE THREATENING WEATHER APPROACHING BE PREPARED TO SEEK SHELTER
QUICKLY.  IF ON THE LAKE BE EXTRA CAUTIOUS AS THUNDERSTORMS ARE
ESPECIALLY DANGEROUS TO BOATERS.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL NEWS MEDIA FOR ADDIThIONAL
STATEMENTS AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

NOGUEIRA/WSO CONCORD NH
Special weather statement, Jun 18, 12:50 PM EDT, 2 hours 20 minutes before
NHZ001-002-191800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CONCORD NH
1250 PM EDT SAT JUN 18 1994

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF NEW HAMSPHIRE
EXCEPT THE EXTREME SOUTHEAST...

AT 1250 PM RADAR INDICATED A LINE OF DEVELOPING THUNDERSTORMS FROM NEAR
LANCASTER NORTHEAST TO NEAR UMBAGOG LAKE.  AS THESE STORMS TRACK TO THE
SOUTHEAST AT ABOUT 20 MPH THEY MAY BE ACCOMPANIED BY GUSTY WINDS...
VERY HEAVY RAIN AND POSSIBLY HAIL.

IF YOU SEE THREATENING WEATHER APPROACHING BE PREPARED TO SEEK SHELTER
QUICKLY.  IF ON THE LAKE BE EXTRA CAUTIOUS AS THUNDERSTORMS ARE
ESPECIALLY DANGEROUS TO BOATERS.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL NEWS MEDIA FOR ADDITIONAL
STATEMENTS AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

NOGUEIRA/WSO CONCORD NH
Special weather statement, Jun 18, 2:30 PM EDT, 40 minutes before
NHZALL-182030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CONCORD NH
232 PM EDT SAT JUN 18 1994

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7 PM EDT FOR
NORTHERN AND CENTRAL NEW HAMPSHIRE...
...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM EDT SOUTH OF
THE LAKES REGION...

AS OF 2:30 PM...NATIONAL WEATHER SERVICE RADAR INDICATED LINE OF
THUNDERSTORMS WHICH EXTENDED FROM MEADOWS THROUGH BERLIN TO THE
NORTHEAST AND WAS MOVING SOUTHEAST AT AROUND 20 MPH THROUGH COOS
COUNTY.  THESE STORMS MAY BE ACCOMPANIED BY SOME HEAVY RAIN
...DANGEROUS LIGHTNING ...BRIEFLY GUSTY WINDS AND EVEN HAIL.

IF THREATENING WEATHER APPROACHES...TAKE SHELTER.  MOTORISTS WHO
ENCOUNTER HEAVY RAIN SHOULD SLOW DOWN OR PULL TO THE SIDE OF THE ROAD
UNTIL THE STORM PASSES.  PERSONS ON ANY LAKES SHOULD BE ESPECIALLY
WATCHFUL OF THE SKY AS THUNDERSTORMS CAN BE EXTREMELY DANGEROUS TO
BOATERS...HEAD FOR SHORE IF THREATENED.

STAY TUNED TO NOAAD WEATHER RADIO OR YOUR LOCAL NEWS MEDIA FOR FURTHER
UPDATES ...STATEMENTS AND POSSIBLE WARNINGS.

MURRAY/WSO CONCORD NH
Special weather statement, Jun 18, 2:32 PM EDT, 38 minutes before
NHZALL-182030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CONCORD NH
232 PM EDT SAT JUN 18 1994

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7 PM EDT FOR
NORTHERN AND CENTRAL NEW HAMPSHIRE...
...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM EDT SOUTH OF
THE LAKES REGION...

AS OF 2:30 PM...NATIONAL WEATHER SERVICE RADAR INDICATED LINE OF
THUNDERSTORMS WHICH EXTENDED FROM MEADOWS THROUGH BERLIN TO THE
NORTHEAST AND WAS MOVING SOUTHEAST AT AROUND 20 MPH THROUGH COOS
COUNTY.  THESE STORMS MAY BE ACCOMPANIED BY SOME HEAVY RAIN
...DANGEROUS LIGHTNING ...BRIEFLY GUSTY WINDS AND EVEN HAIL.

IF THREATENING WEATHER APPROACHES...TAKE SHELTER.  MOTORISTS WHO
ENCOUNTER HEAVY RAIN SHOULD SLOW DOWN OR PULL TO THE SIDE OF THE ROAD
UNTIL THE STORM PASSES.  PERSONS ON ANY LAKES SHOULD BE ESPECIALLY
WATCHFUL OF THE SKY AS THUNDERSTORMS CAN BE EXTREMELY DANGEROUS TO
BOATERS...HEAD FOR SHORE IF THREATENED.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL NEWS MEDIA FOR FURTHER
UPDATES ...STATEMENTS AND POSSIBLE WARNINGS.

MURRAY/WSO CONCORD NH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 8:22 PM EDTSevere Thunderstorm WarningGYXOxford, York68 min
Jun 17, 9:08 PM EDTSevere Thunderstorm WarningGYXAndroscoggin67 min
Jun 18, 1:20 PM EDTSevere Thunderstorm WarningGYXOxford55 min
Jun 18, 2:15 PM EDTSevere Thunderstorm WarningGYXPiscataquis60 min
Jun 18, 2:45 PM EDTSevere Thunderstorm WarningGYXSomerset60 min
Jun 18, 3:47 PM EDTSevere Thunderstorm WarningGYXWashington58 min
Jun 18, 3:52 PM EDTSevere Thunderstorm WarningGYXPenobscot68 min

Nearby

Severe Thunderstorm Warnings in Maine, 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.