Alert archive / Connecticut / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 30, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 19, 1999, 5:00 PM EDT for Northeastern Connecticut Planning Region, Connecticut. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 19, 1999, 5:00 PM EDT (21:00 UTC)
- Expired
- Jul 19, 1999, 5:45 PM EDT
- In force
- 45 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
The radar
The Boston radar (KBOX), 71 km from the middle of the area, began a volume at 21:02 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
Brookhaven, NY (KOKX), launched 12:00Z, 9.0 hours before the alert went out and 130 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
- 284 J/kg
- Mixed-layer CIN
- -161 J/kg
- Mixed-layer LCL
- 1574 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 41 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 KBOX 192105 RRA SVRBOS CTC015-192145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 500 PM EDT MON JUL 19 1999 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN WINDHAM COUNTY IN NORTHERN CONNECTICUT INCLUDING PUTNAM...ASHFORD...EASTFORD...WOODSTOCK AND POMFRET. * UNTIL 545 PM EDT. * AT 457 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 14 MILES WEST OF EASTFORD...OR ABOUT 10 MILES NORTHWEST OF MANSFIELD...MOVING EAST AT 45 MPH. $$ DRAG
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.
NWS Boston/Norton, MA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 19, 2:55 PM EDT, 2 hours 5 minutes earlier.
Area forecast discussion, Jul 19, 2:55 PM EDT, 2 hours 5 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAUNTON MA 255 PM EDT MON JUL 19 1999 BUSY AFTN WITH TSTMS ACRS SE NEW ENG. STRMS EXTENDING FM PLYMOUTH CNTY E-SE ACRS RI...CT AND INTO SE NY STATE. CELLS ARE MVG E WHILE THE AREA SINKS SLWOLY S. THINK RISK OF SVR CONTS THRU ABT 7 PM THEN AREA MVES S OF OUR CWA...EXCEPT MAYBE THE CAPE AND ISLANDS. OTHER SHWRS AND POS TSTMS STILL SHWG ON KALY RADAR SO EXPECT THE THREAT OF PCPN THRU ABOUT MID...BUT EXPECT IT TO BECOME MAINLY A RAIN EVENT DURING THE EVENING. RAIN ENDING AROUND MID WITH CLRG AFT MID. SFC FRNT MAKING ITS WAY SLWLY SE ACRS NEW ENG THIS AFTN. ALL MDLS SIMLR IN MVG SFC HI PRES NR LK SUPERIOR E-SE ACRS GT LKS AND NEW ENG OVR THE NXT 48 HRS. DRIER...COOLER AIR ALRDY ACRS NRN NY AND NE POISED TO DROP S AS HI BLDS IN. THIS WILL SET US UP FOR SOME NICE WX OVR THE NXT 2 DAYS. HUMIDITY SHLD START TO DROP OFF TNGT...NGM QUICKER IN DOING THIS...BUT SHLD REALLY BE NOTICABLE ON TUE. NGM ANS ETA BOTH SHWG ABT A 100 KT 300 MB JET ACRS NEW ENG TUES SO WL MOST LKLY BE SOME CI ARND BUT OTHER THEN THAT WL BE LOOKING AT MS SKIES. FWC MAX TEMPS HIGHER THEN THE FAN FOR TUE AND WL LEAN TWRD FWC NUMBERS. THERE AFTER FAN/FWC ARE CLOSE AND WL BE FOLLWED... ATLHOUGH MAY GO A LTL BLW TUE NGT WITH RAD COOLING EXPECTED. WED AND WED NGT...AVN SHOWS WEAK SWAV MVG SE FM CANADA WITH SOME HIGH AND MID LVL MOISTURE. BEST DYNAMICS AND MOISTURE STAY JUST N OF OUR CWA...BUT WILL GO PC/PS FOR OUR N ZONES. MARINE....NGM STILL SHWG 25 KTS OR GRTR ARND 950 MBS AND ABV TUE AM WITH DECENT CAA. ETA WNDS NOT NEARLY AS STRNG. DUE TO THE UNCERTAINTY AND SINCE ITS ALREADY IN FCST WL CONT WITH SCA MAY BE NEEDED TUE. MAY GET A BREIF PERIOD OF GSTY WNDS IN THE AM... DROPING OFF IN THE AFTN. LGT WNDS AND NO PROBLEMS EXPECTED TUE AND WED. .BOX...SCA MAY BE NEEDED ALL WATERS TUES. NOTCHEY
In the hours before
Local storm report, Jul 19, 2:49 PM EDT, 2 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAUNTON MASSACHUSETTS
249 PM EDT MON JUL 19 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0135 PM COVENTRY CT WIND DAMAGE
07/19/99 TOLLAND WIRES DOWN
0153 PM WINDHAM CT WIND DAMAGE
07/19/99 WINDHAM TREES...TELEPHONE POLES
AND WIRES DOWN PER PD
0155 PM STORRS CT WIND DAMAGE
07/19/99 TOLLAND LARGE BRANCHES DOWN
0235 PM PLAINFIELD CT
07/19/99 WINDHAM LIGHTNING STRIKES AND
DAMAGES A HOUSE PER
SKYWARN RELAY.Local storm report, Jul 19, 2:49 PM EDT, 2 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAUNTON MASSACHUSETTS
249 PM EDT MON JUL 19 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0135 PM COVENTRY CT WIND DAMAGE
07/19/99 TOLLAND WIRES DOWN
0153 PM WINDHAM CT WIND DAMAGE
07/19/99 WINDHAM TREES...TELEPHONE POLES
AND WIRES DOWN PER PD
0155 PM STORRS CT WIND DAMAGE
07/19/99 TOLLAND LARGE BRANCHES DOWN
0235 PM PLAINFIELD CT
07/19/99 WINDHAM LIGHTNING STRIKES AND
DAMAGES A HOUSE PER
SKYWARN RELAY.The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 1:34 PM EDT | Severe Thunderstorm Warning | BOX | 41 min | |
| Jul 19, 1:47 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 43 min |
| Jul 19, 4:53 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 52 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 1999Every severe thunderstorm warning in 1999
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.