Alert archive / New Hampshire / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 21, NWS Gray, ME
NWS Gray, ME issued this severe thunderstorm warning at Aug 24, 1998, 3:25 PM EDT for Carroll County, New Hampshire. It was in force for 45 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
- Aug 24, 1998, 3:25 PM EDT (19:25 UTC)
- Expired
- Aug 24, 1998, 4:10 PM EDT
- In force
- 45 min
- Issued by
- NWS Gray, ME
- Area
- Whole counties
County Carroll County, NH
The radar
The Portland,ME radar (KGYX), 76 km from the middle of the area, began a volume at 19:25 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 24, 3:45 PM EDT | Thunderstorm Wind 50 | Tamworth, NH | |
| Aug 24, 3:45 PM EDT | Hail 2.75 | Tamworth, NH |
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.
The nearest sounding before it
Gray, ME (KGYX), launched 12:00Z, 7.4 hours before the alert went out and 76 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
- 1157 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPWM 241926 RRA SVRPWM NHC003-242010- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GRAY ME 325 PM EDT MON AUG 24 1998 THE NATIONAL WEATHER SERVICE IN GRAY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CARROLL COUNTY IN CENTRAL NEW HAMPSHIRE * UNTIL 410 PM EDT * AT 320 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR CENTRAL GRAFTON COUNTY...MOVING SOUTHEAST AT 40 MPH. A SEVERE THUNDERSTORM NEAR WARREN AND WENTWORTH NEW HAMPSHIRE IS MOVING TOWARD CARROLL COUNTY. THIS STORM HAS A HISTORY OF HEAVY RAIN...DAMAGING WINDS AND LARGE HAIL. IF THREATENING WEATHER APPROACHES GO INSIDE A STURDY BUILDING AND STAY AWAY FROTM WINDOWS! 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, Aug 24, 10:37 AM EDT, 4 hours 48 minutes before
MEZ012>030-NHZ005>010-013-014-250000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 1037 AM EDT MON AUG 24 1998 ...STRONG THUNDERSTORMS ARE POSSIBLE ACROSS PORTIONS OF SOUTHERN NEW HAMPSHIRE AND SOUTHERN AND CENTRAL MAINE THIS AFTERNOON... A WARM FRONT WILL MOVE NORTH ACROSS NEW HAMPSHIRE AND SOUTHERN AND CENTRAL MAINE DURING THE AFTERNOON. SOUTH OF THE FRONT...VERY WARM AND HUMID AIR WILL SET THE STAGE FOR THE POSSIBILITY OF STRONG THUNDERSTORMS DURING THE MID TO LATE AFTERNOON. PLACES THAT SEE THE MOST SUNSHINE THIS AFTERNOON...SUCH AS SOUTHERN NEW HAMPSHIRE AND WESTERN MAINE...STAND THE BEST CHANCE TO SEE THUNDERSTORMS THAT PRODUCE GUSTY WINDS AND HEAVY DOWNPOURS. IN THIS AREA...THUNDERSTORMS ARE POSSIBLE JUST ABOUT ANY TIME...BUT THE BEST CHANCE WILL BE AFTER 200 PM OR SO. THE THREAT OF THUNDERSTORMS WILL LAST UNTIL SUNSET. ANY OF THE THUNDERSTORMS MAY PRODUCE WINDS GUSTS IN EXCESS OF 45 MPH...AS WELL AS LOCALLY HEAVY RAIN. IF YOU ARE PLANNING ANY OUTDOOR ACTIVITIES THIS AFTERNOON...KEEP A WEATHER EYE TO THE SKY...AND BE PREPARED TO SEEK SHELTER SHOULD STRONG THUNDERSTORMS DEVELOP. ALSO...IF YOU PLAN TO BE OUT ON THE WATER...BE ON THE ALERT FOR THREATENING WEATHER...AND BE PREPARED TO RETURN TO SHORE IF ROUGH WEATHER APPROACHES. LISTEN TO NOAA WEATHER RADIO...THE OFFICIAL VOICE OF THE NATIONAL WEATHER SERVICE...FOR UPDATED FORECASTS AND STATEMENTS CONCERNING THE POTENTIAL FOR STRONG THUNDERSTORMS. HAYES
Special weather statement, Aug 24, 10:37 AM EDT, 4 hours 48 minutes before
MEZ012>030-NHZ005>010-013-014-250000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 1037 AM EDT MON AUG 24 1998 ...STRONG THUNDERSTORMS ARE POSSIBLE ACROSS PORTIONS OF SOUTHERN NEW HAMPSHIRE AND SOUTHERN AND CENTRAL MAINE THIS AFTERNOON... A WARM FRONT WILL MOVE NORTH ACROSS NEW HAMPSHIRE AND SOUTHERN AND CENTRAL MAINE DURING THE AFTERNOON. SOUTH OF THE FRONT...VERY WARM AND HUMID AIR WILL SET THE STAGE FOR THE POSSIBILITY OF STRONG THUNDERSTORMS DURING THE MID TO LATE AFTERNOON. PLACES THAT SEE THE MOST SUNSHINE THIS AFTERNOON...SUCH AS SOUTHERN NEW HAMPSHIRE AND WESTERN MAINE...STAND THE BEST CHANCE TO SEE THUNDERSTORMS THAT PRODUCE GUSTY WINDS AND HEAVY DOWNPOURS. IN THIS AREA...THUNDERSTORMS ARE POSSIBLE JUST ABOUT ANY TIME...BUT THE BEST CHANCE WILL BE AFTER 200 PM OR SO. THE THREAT OF THUNDERSTORMS WILL LAST UNTIL SUNSET. ANY OF THE THUNDERSTORMS MAY PRODUCE WINDS GUSTS IN EXCESS OF 45 MPH...AS WELL AS LOCALLY HEAVY RAIN. IF YOU ARE PLANNING ANY OUTDOOR ACTIVITIES THIS AFTERNOON...KEEP A WEATHER EYE TO THE SKY...AND BE PREPARED TO SEEK SHELTER SHOULD STRONG THUNDERSTORMS DEVELOP. ALSO...IF YOU PLAN TO BE OUT ON THE WATER...BE ON THE ALERT FOR THREATENING WEATHER...AND BE PREPARED TO RETURN TO SHORE IF ROUGH WEATHER APPROACHES. LISTEN TO NOAA WEATHER RADIO...THE OFFICIAL VOICE OF THE NATIONAL WEATHER SERVICE...FOR UPDATED FORECASTS AND STATEMENTS CONCERNING THE POTENTIAL FOR STRONG THUNDERSTORMS. HAYES
The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 2:54 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 56 min |
Nearby
Severe Thunderstorm Warnings in New Hampshire, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.