Alert archive / Kentucky / Flash Flood Warnings in 1990
Flash Flood Warning 39, NWS Jackson, KY
NWS Jackson, KY issued this flash flood warning at Dec 22, 1990, 10:09 PM EST for Knox County, Kentucky. It was in force for 111 min.
The area
The counties it named.
The facts
- Issued
- Dec 22, 1990, 10:09 PM EST (03:09 UTC)
- Expired
- Dec 23, 1990, 12:00 AM EST
- In force
- 111 min
- Issued by
- NWS Jackson, KY
- Area
- Whole counties
County Knox County, KY
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Huntington/Tri S, WV (KHTS), launched 00:00Z, 3.2 hours before the alert went out and 203 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
- 7 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 676 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 122 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.
In the hours before
Special weather statement, Dec 22, 4:44 PM EST, 5 hours 25 minutes before
KYZ008-222300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON KY 440 PM EST SAT DEC 22 1990 ...FLASH FLOOD WATCH FOR SOUTHEAST KENTUCKY THIS AFTERNOON... AT 430 PM...LIGHT TO MODERATE RAIN WAS FALLING OVER ALL OF SOUTHEAST KENTUCKY. THE HEAVIEST RAIN WAS FALLING OVER BELL AND KNOX COUNTIES... FROM NEAR MIDDLESBORO TO 25 MILES NORTHWEST OF MIDDLESBORO. MOVEMENT WAS NORTHEAST AT 30 MILES AN HOUR. LIGHT TO MODERATE RAIN WILL CONTINUE TO MOVE INTO SOUTHEAST KENTUCKY THROUGH THE EVENING. NO FLOODING WAS REPORTED ACROSS THE COALFIELDS AT 430 PM. HOWEVER... THE RAIN FALLING ON THE ALREADY SATURATED GROUND...MEANS THAT FLASH FLOODING WILL REMAIN A POSSIBILITY. IF YOU LIVE IN AM FLOOD PRONE AREA...YOU SHOULD MONITOR WATER LEVELS AND BE PREPARED FOR QUICK ACTION IF WATER LEVELS BEGIN TO RISE RAPIDLY OR IF A FLASH FLOOD WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION. OGREN
Special weather statement, Dec 22, 5:36 PM EST, 4 hours 33 minutes before
KYZ008-230000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON KY 535 PM EST SAT DEC 22 1990 ...A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTHEAST KENTUCKY TONIGHT... AT 530 PM...LIGHT TO MODERATE RAIN WAS FALLING OVER ALL OF SOUTHEAST KENTUCKY. THE HEAVIEST RAIN WAS FALLING OVER BELL AND KNOX COUNTIES... FROM NEAR MIDDLESBORO TO 25 MILES NORTHWEST OF MIDDLESBORO. MOVEMENT WAS NORTHEAST AT 35 MILES AN HOUR. LIGHT TO MODERATE RAIN WILL CONTINUE TO MOVE INTO SOUTHEAST KENTUCKY THROUGH THE EVENING. NO FLOODING WAS REPORTED ACROSS THE COALFIELDS AT 530 PM. HOWEVER... THE RAIN IS FALLING ON SATURATED GROUND AND WILL RESULT IN RAPID RUN OFF INTO ALREADY SWOLLEN CREEKS AND RIVERS. IF YOU LIVE IN A FLOOD PRONE AREA...YOU SHOULD MONITOR WATER LEVELS AND BE PREPARED FOR QUICK ACTION IF WATER LEVELS BEGIN TO RISE RAPIDLY OR IF A FLASH FLOOD WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION. OGRE}N
Special weather statement, Dec 22, 6:40 PM EST, 3 hours 29 minutes before
KYZ008-230100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON KY 640 PM EST SAT DEC 22 1990 ...A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTHEAST KENTUCKY TONIGHT... AT 630 PM...LIGHT TO MODERATE RAIN WAS FALLING OVER ALL OF SOUTHEAST KENTUCKY. THE HEAVIEST RAIN WAS FALLING OVER BELL..HARLAN...KNOX... CLAY AND LESLIE COUNTIES...FROM NEAR MIDDLESBORO TO 15 MILES SOUTHWEST OF HAZARD. MOVEMENT WAS NORTHEAST AT 30 MILES AN HOUR. LIGHT TO MODERATE RAIN WILL CONTINUE TO MOVE INTO SOUTHEAST KENTUCKY THROUGH THE EVENING. NO FLOODING WAS REPORTED ACROSS THE COALFIELDS AT 630 PM. HOWEVER... THE RAIN IS FALLING ON SATURATED GROUND AND WILL RESULT IN RAPID RUN OFF INTO ALREADY SWOLLEN CREEKS AND RIVERS...ESPECIALLY WHERE THE HEAVIEST RAIN HAS BEEN FALLING. IF YOU LIVE IN A FLOOD PRONE AREA...YOU SHOULD MONITOR WATER LEVELS AND BE PREPARED FOR QUICK ACTION IF WATER LEVELS RISE RAPIDLY OR IF A FLASH FLOOD WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION. OGREN
The office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 22, 8:10 PM EST | Flash Flood Warning | JKL | Bell | 7 hr |
| Dec 22, 11:40 PM EST | Flash Flood Warning | JKL | Jackson | 4 hr |
| Dec 23, 12:00 AM EST | Flash Flood Warning | JKL | Bell, Knox | 6 hr |
| Dec 23, 1:10 AM EST | Flash Flood Warning | JKL | Lee | 5 hr |
| Dec 23, 3:55 AM EST | Flash Flood Warning | JKL | Jackson | 2 hr |
| Dec 23, 5:35 AM EST | Flash Flood Warning | JKL | Jackson, Lee | 4 hr |
| Dec 23, 5:35 AM EST | Flash Flood Warning | JKL | Bell, Knox | 4 hr |
Nearby
Flash Flood Warnings in Kentucky, 1990Every flash flood warning in 1990
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.