Alert archive / Ohio / Flash Flood Warnings in 1998
Flash Flood Warning 3, NWS Wilmington, OH
NWS Wilmington, OH issued this flash flood warning at Jan 7, 1998, 6:43 PM EST for Pike County, Ohio. It was in force for 2 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 7, 1998, 6:43 PM EST (23:43 UTC)
- Expired
- Jan 7, 1998, 8:45 PM EST
- In force
- 2 hr
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Pike County, OH
The radar
The Cincinnati radar (KILN), 75 km from the middle of the area, began a volume at 23:42 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.7 hours before the alert went out and 74 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
- 15 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 517 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 49 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 KILN 072345 FFWILN OHC131-080145- BULLETIN FLOOD WARNING NATIONAL WEATHER SERVICE WILMINGTON OH 643 PM EST WED JAN 7 1998 THE NATIONAL WEATHER SERVICE IN WILMINGTON OH HAS ISSUED A FLOOD WARNING FOR SMALL STREAMS EFFECTIVE UNTIL 845 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL OHIO ...PIKE COUNTY AS OF 630 PM...OVER AN INCH OF RAIN HAD FALLEN IN MUCH OF EASTERN PIKE COUNTY. ADDITIONAL RAIN IS EXPECTED TO MOVE INTO THE COUNTY FROM THE SOUTH...WITH AN ADDITIONAL INCH OR MORE OF RAINFALL EXPECTED THROUGH MIDNIGHT. ADDITIONAL RAINFALL IS LIKELY TO CAUSE FLOODING OF LOW LYING AREAS AND STREAMS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLASH FLOODING. DIAN-REED
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 Wilmington, OH wrote its last area forecast discussion before this flash flood warning went out at Jan 7, 3:00 PM EST, 3 hours 43 minutes earlier.
Area forecast discussion, Jan 7, 3:00 PM EST, 3 hours 43 minutes before
FORECAST COORDINATION MESSAGE NATIONAL WEATHER SERVICE WILMINGTON OH 300 PM EST WED JAN 7 1998 PRIMARY CONCERN IS FLASH FLOOD/FLOOD THREAT OVERNIGHT. NGM AND AVN DOING BETTER THAN ETA WITH MOISTURE FIELDS AND AXIS OF HEAVIEST RAIN. NGM SHOWED AXIS OF HEAVY RAIN ALONG I-71 AT 00Z. ATTM...REGIONAL RADARS SHOW THE LAST SLUG OF DEEP MOISTURE (MOD-HEAVY RA) FM SC KY INTO CNTRL TN. AT 00Z NGM SHOWS LOADS OF 850 MB MOISTURE CONVERGENCE IN N KY AND SRN OH WITH THE NOSE OF THE 50+ KT LOW LVL JET IN THIS SAME AREA. THE JET...MOISTURE CONVERGENCE AND UVV MOVE OFF QUICKLY TO THE NE LTR TNGT. MODEL TIME SECTION ALSO SHOWS OUR AREA LOSING THE DEEP MOISTURE BY AROUND 06Z TNGT. THUS...GREATEST ACCUM RAIN TO OCCUR TIL AROUND 12 AM FOLLOWED BY SCT LESS INTENSE RAIN. BEWARE...ILN RADAR HAS BEEN UNDERESTIMATG RAINFALL. AT 18Z THE RADAR SHOWED ABOUT .25 IN NR CVG WHILE CVG GAUGE HAD PICKED UP .76 INCHES. ANOTHER REPORT FM BUTLER COUNTY ALSO CONFIRMED THE UNDERESTIMATG. IF PCPN BECOMES MORE CONVECTIVE LT AFTN AND EVENG THE ESTIMATG WL GET BETTER BUT EVENT WL STILL BE UNDERDONE BY RADAR. ALREADY HAVE HAD A COUPLE RPTS OF PNDG WTR ON ROADS IN SRN OH. USING CURRENT RADAR AND FCST MODEL BELIEVE THE PLUME OF HEAVIEST RAIN ACROSS OUR AREA WL BE ROUGHLY ALONG I-71 TO THE S AND E WITH AMOUNTS DROPPG OFF TOWARD LIMA. BIG QUESTION IS WHAT TO DO WITH FF/FLOOD WATCHES. BELIEVE CVG...DAY AND CMH AREAS SHOULD CONTINUE IN WATCH TNGT. LESS CHC EC IN INTO WC OH AND WL COORD WITH WSFO'S ON THAT AREA. COULD SEE AN ADDITIONAL 1-2 INCHES OF RAIN IN PRIME AREA AND 6 HR FFG ONLY 1-1.5 INCHES WITH 12 HR BETWEEN 1.5 AND 2 INCHES MOST AREAS. PSUEDO DRY SLOT TO COME IN LTR TNGT AND REMAIN NRBY INTO THU. ALTHOUGH DEEP MOISTURE GONE THERE WL STILL BE LOW LVL MOISTURE AND WEAK IMPULSES BEFORE STGR VORT MOVES IN THU NGT. 700 MB TROF DOES NOT MOVE THRU TIL FRI AS WELL SO WL KEEP RELATIVELY HIGH POPS FOR THE REST OF THE FCST BUT THE QPF WL BE MINOR COMPARED TO THIS EVENG. TEMPS WL BE TUF AS FNTL BNDRY HUNG UP IN THE MIDDLE OF OUR FA THRU THU BEFORE MOVG E ON FRI. TEMPS RANGE ATTM FM 45 FWA TO 60 AT HTS. THE TIGHT TEMP GRADIENT IS ACROSS THE MIAMI VLY AND WC OH. DAY HAS JUST PLUMMETED 6 DEG F TO 52 DEG F IN LESS THAN AN HR. BNDRY SHOULD STILL CREEP A LITTLE FARTHER S AND E TNGT. DID NOT DEPART FAR FM MOS WITH UNCERTAINTY ABOUT EXACT BNDRY POSITION. CVG 52/54/41/42 +/6/6/4 DAY 47/48/39/39 +/6/6/5 CMH 50/53/44/44 +/7/7</6 SANDLER
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 5:35 PM EST | Flash Flood Warning | ILN | Adams, Scioto | 5 hr |
Nearby
Flash Flood Warnings in Ohio, 1998Every flash flood 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.