Alert archive / New York / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 32, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Aug 5, 1999, 2:55 PM EDT for Kings County, New York. It was in force for 35 min. 1 report 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 5, 1999, 2:55 PM EDT (18:55 UTC)
- Expired
- Aug 5, 1999, 3:30 PM EDT
- In force
- 35 min
- Issued by
- NWS New York, NY
- Area
- Whole counties
County Kings County, NY
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 5, 3:00 PM EDT | Thunderstorm Wind 50 | Brooklyn, NY |
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
Brookhaven, NY (KOKX), launched 12:00Z, 6.9 hours before the alert went out and 95 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
- 21 J/kg
- Mixed-layer CIN
- -213 J/kg
- Mixed-layer LCL
- 1297 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 New York, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 5, 2:30 PM EDT, 25 minutes earlier.
Area forecast discussion, Aug 5, 2:30 PM EDT, 25 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEW YORK NY 230 PM EDT THU AUG 5 1999 DISC: CDFNT STRNG TO CREATE A BIT MORE ACTIVITY NOW THAT WE HAVE DAYTIME HEATING. BOTH MODELS SHOW MOST OF THE DYNAMICS WL CONTINUE TO GO TO OUR N...BUT THE H5 TROF DIPS DOWN AND THERE IS A SHOT OF VORT THAT WL COME THRU WITH THE SFC FNT. LI/S SL RUNNING ARND -2. ALY MRNG SNDG SHOWS LIFTING IS A -4 AND THE TT40-45. WITH STL PLENTY OF DAYLIGHT AND THE ENERGY IS CONTNG TO MOV E WE CAN SEE SOME TSMTS THRU THE REMAINDER OF TDY. OUR RADAR MOSAIC SHOWS TSTMS MOVG E AT 20-30 MPH FM N OF BGM INTO WRN NY. WL ADD A REST OF TDY PD TO COVR ANY TSTMS ACTIVITY THAT WE MAY SEE. MOST OF THE STORMS SHD JUST PRODUCE SOME MOD TO HVY RAIN AS THE PW IS RUNNING ABOUT 1.5 IN. THE MODIFIED SNGS SUGGEST THAT THE WNDS DO INCRS A BIT AT THE H5-H3 LVL AND A JET WL FOLLOW THIS INTO OUR AREA. IF ANY OF THE TSTMS DO DVLP THE POTENTIAL FOR SOME GUSTY WNDS WL BE THERE. WL NOT MENTION THIS IS THE FCST AS THE STORMS WL BE WIDE SPREAD. ONCE FNT MOVS THRU ARND 00-02Z. THE SHWRS WL COME TO AND END AND AND AREA OF NVA DOES MOV IN. SKIES SHD CLR FAIRLY QUICKLY AND WNDS BECM W-NW. BY THE END OF THE FCST PD A RIDGE WL BEGIN TO DVLP AND WE SHD STRT TO HEAT UP AGAIN. MARINE...WNDS AND SEAS WL BELOW SCA CRIT. .NYC/OKX...NONE. GSK
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 2:31 PM EDT | Severe Thunderstorm Warning | OKX | Suffolk | 49 min |
| Aug 5, 2:55 PM EDT | Severe Thunderstorm Warning | OKX | Richmond | 35 min |
| Aug 5, 3:27 PM EDT | Severe Thunderstorm Warning | OKX | Nassau, Suffolk | 48 min |
| Aug 5, 3:46 PM EDT | Severe Thunderstorm Warning | OKX | Kings, Queens | 49 min |
| Aug 5, 4:08 PM EDT | Severe Thunderstorm Warning | OKX | Suffolk | 62 min |
| Aug 5, 2:55 PM EDT | Severe Thunderstorm Warning | OKX | Hudson | 35 min |
| Aug 5, 4:19 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region | 51 min |
| Aug 5, 5:16 PM EDT | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 49 min |
| Aug 5, 5:17 PM EDT | Flash Flood Warning | OKX | Southeastern Connecticut Planning Region | 2 hr |
Nearby
Severe Thunderstorm Warnings in New York, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.