Alert archive / Oklahoma / Flash Flood Warnings in 1998

Flash Flood Warning 44, NWS Norman, OK

October 5, 1998Lincoln County, Oklahoma

NWS Norman, OK issued this flash flood warning at Oct 5, 1998, 4:45 AM CDT for Lincoln County, Oklahoma. It was in force for 3 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
Oct 5, 1998, 4:45 AM CDT (09:45 UTC)
Expired
Oct 5, 1998, 7:45 AM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Lincoln County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 9.8 hours before the alert went out and 71 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.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 1998-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1746 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 1998-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 293 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1746 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
1456 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
293 m²/s²
0-3 km storm-relative helicity
419 m²/s²
Significant tornado parameter
2.0
Supercell composite
28.9

Open this sounding in Storm Lab

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 Norman, OK wrote its last area forecast discussion before this flash flood warning went out at Oct 5, 4:45 AM CDT, 0 minutes earlier.

Area forecast discussion, Oct 5, 4:45 AM CDT, 0 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
445 AM CDT MON OCT 5 1998

ONE WORD: WOW!!

NOW ON TO THE CURRENT FORECAST...  RUNNING WAY BEHIND THE POWER CURVE
THIS MORNING DUE TO ONGOING SEVERE WEATHER ACROSS THE FA AS FRONT
LIGHTS UP AND NEW WW ISSUED.  CONVECTION CONTINUES TO BACK-BUILD
SWWD ALONG THE COLD FRONT AS IT EVER SO SLOWLY SAGS SOUTH.  THIS IN
RESPONSE TO LLJ AND INCREASING INFLUENCE FROM NEXT SHORTWAVE NOW
ROUNDING THE BASE OF THE UPPER TROF.  AIRMASS IS STILL
GOOD..ALTHOUGH CAPES ARE LOWER DUE TO DIURNAL COOLING..BUT SHEAR
PROFILES REMAIN VERY IMPRESSIVE AND WILL CONTINUE TO SUPPORT
ORGANIZED AND OCCASIONALLY SEVERE STORMS THRU THE DAY ALONG AND
SOUTH OF THE FRONT.

IN ADDITION..WE WILL HOIST A FLASH FLOOD WATCH FOR THE
CENTRAL..SOUTH CENTRAL AND SOUTHEAST ZONES THRU TODAY.  THERE IS
SOME CONCERN THAT THE FRONT MAY NOT MOVE SEWD AS FAST AS
PROGGED..AND FURTHER..ELEVATED CONVECTION MAY STILL DEVELOP BEHIND
THE SFC FRONT ABOVE SHALLOW COLD AIR.  THUS..THE FFA MAY NEED TO BE
EXTENDED INTO TONITE OVER THE SOUTHEAST..BUT ATTM BEST COURSE OF
ACTION IS TO LET DAY SHIFT DECIDE THIS.

FRONT SHUD FINALLY CLEAR THE FA BY TUES MORNING..BRINGING IN MUCH
COOLER NRLY FLOW.  NORTH ZONE WILL NEED TO BE WATCHED FOR WRAP
AROUND MOISTURE AND SHOWERS TUE/TUE NITE..BUT ELECTED TO LEAVE OUT
FOR NOW.  NO CHANGES TO EXTENDED..NO TIME TO LOOK AT.

THANKS FOR COORD WITH FTW.
 MILLER

FCSTID = 21
OKC   79  53  68  48 /  70  30  10  10
HBR   73  48  71  43 /  50  10  10  10
SPS   83  56  75  50 /  60  30  10  10
GAG   67  41  66  39 /  10  10   0  10
PNC   68  50  67  45 /  50  10  10  10
DUA   84  63  76  56 /  80  40  30  10

.OUN...
OK...FFA OKZ013-017>020-028>032-039>043-045>048-050>052.
     SEVERE T-STORM WATCH UNTIL 15Z SE OF ALTUS..OKC..STILLWATER
TX...NONE.

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 4, 7:05 PM CDTSevere Thunderstorm WarningOUNCanadian40 min
Oct 4, 7:08 PM CDTTornado WarningOUNGrady27 min
Oct 4, 7:10 PM CDTTornado WarningOUNNoble, Payne35 min
Oct 4, 7:10 PM CDTTornado WarningOUNGarfield, Kingfisher, Logan50 min
Oct 4, 7:16 PM CDTSevere Thunderstorm WarningOUNMcClain29 min
Oct 4, 7:23 PM CDTTornado WarningOUNPayne52 min
Oct 4, 7:30 PM CDTSevere Thunderstorm WarningOUNCaddo, Canadian45 min
Oct 4, 7:34 PM CDTTornado WarningOUNMcClain26 min
Oct 4, 7:37 PM CDTSevere Thunderstorm WarningOUNGarfield, Noble38 min
Oct 4, 7:43 PM CDTTornado WarningOUNPayne32 min
Oct 4, 7:44 PM CDTSevere Thunderstorm WarningOUNCleveland46 min
Oct 4, 7:50 PM CDTSevere Thunderstorm WarningOUNKay40 min
Oct 4, 7:55 PM CDTTornado WarningOUNCleveland35 min
Oct 4, 7:56 PM CDTTornado WarningOUNCanadian49 min
Oct 4, 7:59 PM CDTSevere Thunderstorm WarningOUNOklahoma46 min
Oct 4, 8:01 PM CDTSevere Thunderstorm WarningOUNGrady44 min
Oct 4, 8:06 PM CDTSevere Thunderstorm WarningOUNMcClain24 min
Oct 4, 8:11 PM CDTTornado WarningOUNPayne19 min
Oct 4, 8:16 PM CDTTornado WarningOUNCleveland, McClain29 min
Oct 4, 8:31 PM CDTTornado WarningOUNCleveland, Oklahoma29 min
Oct 4, 8:37 PM CDTSevere Thunderstorm WarningOUNOklahoma53 min
Oct 4, 8:41 PM CDTSevere Thunderstorm WarningOUNGrant49 min
Oct 4, 8:46 PM CDTSevere Thunderstorm WarningOUNCanadian, Kingfisher44 min
Oct 4, 8:46 PM CDTTornado WarningOUNCleveland, Oklahoma34 min
Oct 4, 8:57 PM CDTTornado WarningOUNLincoln, Pottawatomie48 min
Oct 4, 9:01 PM CDTSevere Thunderstorm WarningOUNLogan44 min
Oct 4, 9:07 PM CDTSevere Thunderstorm WarningOUNKay53 min
Oct 4, 9:13 PM CDTTornado WarningOUNCleveland, Oklahoma32 min
Oct 4, 9:15 PM CDTFlash Flood WarningOUNKay3 hr
Oct 4, 9:28 PM CDTSevere Thunderstorm WarningOUNOklahoma47 min
Oct 4, 9:41 PM CDTSevere Thunderstorm WarningOUNLogan49 min
Oct 4, 9:41 PM CDTTornado WarningOUNLincoln, Pottawatomie34 min
Oct 4, 10:02 PM CDTSevere Thunderstorm WarningOUNGarfield, Noble43 min
Oct 4, 10:04 PM CDTTornado WarningOUNSeminole56 min
Oct 4, 10:14 PM CDTSevere Thunderstorm WarningOUNLincoln46 min
Oct 4, 10:16 PM CDTTornado WarningOUNPottawatomie14 min
Oct 4, 10:36 PM CDTSevere Thunderstorm WarningOUNLogan, Oklahoma39 min
Oct 4, 10:56 PM CDTSevere Thunderstorm WarningOUNLincoln64 min
Oct 5, 12:34 AM CDTFlash Flood WarningOUNNoble116 min
Oct 5, 2:23 AM CDTFlash Flood WarningOUNGarfield, Kay, Noble3 hr
Oct 5, 2:34 AM CDTSevere Thunderstorm WarningOUNLogan41 min
Oct 5, 3:09 AM CDTTornado WarningOUNLogan, Payne36 min
Oct 5, 3:38 AM CDTTornado WarningOUNLogan, Oklahoma37 min
Oct 5, 3:48 AM CDTTornado WarningOUNPayne27 min
Oct 5, 4:04 AM CDTFlash Flood WarningOUNLogan, Payne3 hr
Oct 5, 4:15 AM CDTTornado WarningOUNPayne25 min
Oct 5, 8:48 AM CDTFlash Flood WarningOUNPottawatomie, Seminole117 min
Oct 5, 9:06 AM CDTFlash Flood WarningOUNStephens3 hr
Oct 5, 10:06 AM CDTFlash Flood WarningOUNGarvin3 hr
Oct 5, 10:25 AM CDTFlash Flood WarningOUNNoble, Payne4 hr
Oct 5, 10:40 AM CDTSevere Thunderstorm WarningOUNAtoka65 min
Oct 5, 2:25 PM CDTSevere Thunderstorm WarningOUNBryan40 min
Oct 5, 3:20 PM CDTSevere Thunderstorm WarningOUNArcher40 min
Oct 5, 3:48 PM CDTSevere Thunderstorm WarningOUNClay42 min

Nearby

Flash Flood Warnings in Oklahoma, 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.