Alert archive / Oklahoma / Flash Flood Warnings in 2002
Flash Flood Warning 29, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at May 7, 2002, 10:07 PM CDT for Nowata County, Oklahoma. It was in force for 4 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
- May 7, 2002, 10:07 PM CDT (03:07 UTC)
- Expired
- May 8, 2002, 2:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Nowata County, OK
The radar
The Tulsa radar (KINX), 70 km from the middle of the area, began a volume at 03:09 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
Norman, OK (KOUN), launched 00:00Z, 3.1 hours before the alert went out and 238 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
- 3304 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 770 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 245 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 5.2
- Supercell composite
- 22.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KTSA 080307 FFWTUL OKC105-080700- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TULSA OK 1006 PM CDT TUE MAY 7 2002 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * FLASH FLOOD WARNING FOR NORTHERN NOWATA COUNTY IN NORTHEAST OKLAHOMA * UNTIL 200 AM CDT * AT 1006 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN ACROSS NORTHERN PORTIONS OF NOWATA COUNTY. THESE STORMS AREA MOVING SLOWLY EAST AT 20 MPH. RADAR INDICATES THAT 3 TO 4 INCHES OF RAIN HAS ALREADY FALLEN ACROSS THE WARNED AREA. ANOTHER 1 TO 2 INCHES OF RAIN WILL BE POSSIBLE THROUGH 200 AM CDT. SOME MINOR URBAN FLOODING WAS REPORTED BY LAW ENFORCEMENT OFFICIALS IN SOUTH COFFEYVILLE AT 955 PM. HEAVY RAIN WILL CONTINUE FOR THE NEXT COUPLE OF HOURS...AND THIS WILL LIKELY LEAD TO FLASH FLOODING. * SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN INCLUDE LENAPAH AND WANN. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS. $$ MANNING LAT...LON 3702 9583 3684 9581 3684 9543 3702 9542
2 follow-up statements
000 WGUS74 KTSA 080441 FFSTUL OKC105-080700- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1141 PM CDT TUE MAY 7 2002 ...FLASH FLOOD WARNING CONTINUES FOR NORTHERN NOWATA COUNTY UNTIL 200 AM CDT... AT 1141 PM CDT...DOPPLER RADAR SHOWED THAT THE HEAVY RAIN THAT WAS AFFECTING NORTHERN NOWATA COUNTY EARLIER THIS EVENING HAD MOVED EAST OF THE WARNED AREA. LAW ENFORCEMENT OFFICIALS REPORT SOME HIGH WATER CONTINUING AROUND SOUTH COFFEYVILLE...HOWEVER...WATER LEVELS WERE BEGINNING TO RECEDE. HIGH WATER WILL REMAIN A PROBLEM IN SOME LOW LYING AREAS OF NORTHERN NOWATA COUNTY THROUGH 200 AM. RADAR INDICATES THAT 3 TO 4 INCHES OF RAIN HAD FALLEN OVER THE WARNED AREA. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS. $$ MANNING
000 WGUS74 KTSA 080706 FFSTUL OKC105-080715- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TULSA OK 205 AM CDT WED MAY 8 2002 ...FLASH FLOOD WARNING CONTINUES FOR NORTHERN NOWATA COUNTY HAS EXPIRED... AT 200 AM CDT...DOPPLER RADAR INDICATED THAT THE HEAVY RAINFALL HAD ENDED ACROSS NORTHERN NOWATA COUNTY. WATER LEVELS FROM EARLIER RAINS HAVE RECEDED...THEREFORE THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. $$
Nearby
Flash Flood Warnings in Oklahoma, 2002Every flash flood warning in 2002
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.