Alert archive / Vermont / Flash Flood Warnings in 1999
Flash Flood Warning 1, NWS Burlington, VT
NWS Burlington, VT issued this flash flood warning at Jan 24, 1999, 9:50 AM EST for Addison County, Chittenden County, Washington County, Vermont. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 24, 1999, 9:50 AM EST (14:50 UTC)
- Expired
- Jan 24, 1999, 6:50 PM EST
- In force
- 9 hr
- Issued by
- NWS Burlington, VT
- Area
- Whole counties
Counties Addison County, VT, Chittenden County, VT, Washington County, VT
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 2.8 hours before the alert went out and 188 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
- 448 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 190 m²/s²
- 0-3 km storm-relative helicity
- 88 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Burlington, VT wrote its last area forecast discussion before this flash flood warning went out at Jan 24, 1:30 AM EST, 8 hours 20 minutes earlier.
Area forecast discussion, Jan 24, 1:30 AM EST, 8 hours 20 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BURLINGTON VT 130 AM EST SUN JAN 24 1999 CD FNT WL ROLL ACRS FA THIS MRNG. TIMING LOOKS LIKE JUST BFR 12Z ST LAW VLY...14-15Z CHMPLN VLY...AND 16-17Z CT VLY. PCPN WL SHUT OFF PRETTY QUICKLY BHND FNT...BUT MTN ZNS MAY SEE SCT -SHRA CHGG TO -SHSN THIS AFTN AS COLDER AIR SWEEPS IN. SNOWMELT IS IN FULL GEAR ACRS NRN NY AND CHMPLN VLY BUT TEMPS E OF GRN MTNS STL IN 30S SO NOT AS MUCH HAPPENING THERE. WHILE PCPN TOTALS WL PRBLY BE ARND 0.50-0.75 INCHES THERE WILL BE ENUF SNOWMELT TO RAISE RIVER LVLS AND PSBLY LEAD TO ICE JAMS. WL MAINTAIN FLD WTCH. CLDS WL STICK ARND FA TNT AND INTO TMRW. LOOKS LIKE A CHC OF FLRYS IN THE VLYS AND FLRYS/-SHSN IN MTNS AS CPL OF SFC TROFS MV THRU. HIGH PRES BEGINS BUILDING IN LTR TMRW WITH CLRG IN ST LAW VLY LTR TMRW AFTN. FOR HIGHS TDY IT WL BE BEST TO ADVERTISE ERLY HIGHS (BASED ON TEMPS AT ISSUANCE TIME) NR 50 OR 45-50 WITH TEMPS FALLING INTO THE UPR 30S (LWR-MID 30S NRN ADRNDCKS) THIS AFTN. FWC TEMPS TNT/TMRW LOOK OK BASED ON TEMPS OVR MID WEST. MCGILL
The office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 24, 9:50 AM EST | Flash Flood Warning | BTV | Rutland | 9 hr |
| Jan 24, 11:24 AM EST | Flash Flood Warning | BTV | Franklin, Lamoille, Orleans | 7 hr |
| Jan 24, 12:47 PM EST | Flash Flood Warning | BTV | Orange, Windsor | 6 hr |
| Jan 24, 10:50 AM EST | Flash Flood Warning | BTV | Clinton, Essex | 8 hr |
| Jan 24, 5:53 PM EST | Flash Flood Warning | BTV | Clinton, Essex | 5 hr |
Nearby
Flash Flood Warnings in Vermont, 1999Every flash flood 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.