The kona low that had earlier affected much of the state remained strong enough to generate heavy rain over the southeast portion of the Big Island of Hawaii. No significant property damage or injuries were reported.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS HFO wrote it up.
The kona low that had earlier affected much of the state remained strong enough to generate heavy rain over the southeast portion of the Big Island of Hawaii. No significant property damage or injuries were reported.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Honolulu, HI wrote its last area forecast discussion before the first event at Nov 7, 4:00 PM HST, 2 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HONOLULU HI 400 PM HST WED NOV 7 2007 .SYNOPSIS...A MORE SETTLED WEATHER PATTERN IS EXPECTED OVER THE ISLANDS AS WE APPROACH THE WEEKEND...BUT AN AREA OF SHOWERS WILL MOVE OVER WINDWARD SECTIONS OF THE ISLANDS LATE TONIGHT AND THURSDAY AS TRADE WINDS MAKE A RETURN. A DRIER AIR MASS WILL SPREAD OVER THE STATE BY THURSDAY NIGHT...WITH LIGHT TO MODERATE TRADE WINDS AND RELATIVELY DRY WEATHER IN STORE FOR THE WEEKEND. && .DISCUSSION...ALTHOUGH THE CUT-OFF LOW THAT RECENTLY DESTABILIZED THE ISLAND ATMOSPHERE CONTINUES TO MOVE FARTHER AWAY FROM THE ISLANDS THIS AFTERNOON...IT/S LINGERING EFFECTS ARE STILL BEING FELT. INSTABILITY AND MOISTURE CONVERGENCE WERE MAXIMIZED OVER THE HILO AND PUNA DISTRICTS AROUND MID-MORNING TODAY...WHERE A CONVECTIVE BLOWUP SENT CLOUD TOPS AS HIGH AS 45 THOUSAND FEET... LEADING TO THE DEVELOPMENT OF LIGHTNING. DAYTIME HEATING AND SEA BREEZE CONVERGENCE ALSO LED TO ADDITIONAL AREAS OF DEEP CONVECTION OVER THE BIG ISLAND THIS AFTERNOON...AS WELL AS SOUTHWEST MAUI AND INTERIOR KAUAI. THE SURFACE TROUGH ASSOCIATED WITH THE OLD KONA LOW IS LOCATED WELL WEST OF THE ISLANDS AND IS HAVING A DECREASING EFFECT ON LOW-LEVEL WINDS NEAR THE ISLANDS. HOWEVER...A SURFACE TROUGH NORTHEAST OF THE ISLANDS IS KEEPING THE PRESSURE GRADIENT LOOSE...DESPITE RECENT 24 HOUR SURFACE PRESSURE RISES OF 4 TO 5 MB...AND IS SUPPORTING CLOUDS AND SHOWERS ABOUT 300 MILES TO OUR NORTHEAST. WITH THE LOOSE GRADIENT AND LINGERING INSTABILITY PROVIDED BY THE DEPARTING LOW ALOFT...TODAY/S HEAVY SHOWERS WERE SPAWNED. THE TREND IS TOWARD A MORE SETTLED TRADE WIND WEATHER PATTERN AS WE HEAD INTO THE WEEKEND...BUT NOT UNTIL WE GET THROUGH A TRANSITIONAL PERIOD. THE MOISTURE NORTHEAST OF THE ISLANDS IS DEPICTED BY GLOBAL MODELS AS HEADING WEST AND SOUTHWEST THROUGH THURSDAY NIGHT AS THE TRADES REBUILD FROM THE EAST...AND THEIR SUPPORTING SURFACE TROUGH WEAKENS. IT APPEARS THAT PART OF THE REASON FOR ENHANCED CONVECTION NEAR WINDWARD BIG ISLAND TODAY WAS SPEED CONVERGENCE BETWEEN THE REBUILDING TRADES...AND THE LIGHTER WINDS WEST OF THE ISLANDS. THIS LENDS CREDENCE TO MODEL SOLUTIONS DEPICTING AN AREA OF SHOWERS MOVING ACROSS THE OTHER ISLANDS AS THE TRADES RETURN. THEY ARE NOT EXPECTED TO BE THAT INTENSE HOWEVER...AS MID LEVEL RIDGING GRADUALLY BUILDS TO OUR NORTH. TIMING ON THESE SHOWERS IS WHERE THE PROBLEM LIES...BUT BEST GUESS IS LATE TONIGHT AND EARLY THURSDAY...FOR WINDWARD FOCUSED SHOWERS. THE MOISTURE IS EXPECTED TO BE WEST OF ALL ISLANDS BY FRIDAY MORNING...AS MODELS BRING A DEFINITIVELY DRIER AIR MASS OVER THE ISLANDS FROM THE EAST. A RELATIVELY DRY TRADE WIND WEATHER PATTERN WILL PREVAIL THROUGH THE WEEKEND...AND INTO NEXT WEEK. THE PRESSURE GRADIENT OVER THE ISLANDS WILL GRADUALLY TIGHTEN AS WE APPROACH THE WEEKEND...AND TRADES WILL PEAK AT MODERATE SPEEDS...AS THE RIDGE WILL NOT BE STRONG...AND WILL BE CENTERED ALONG 28N. AN APPROACHING FRONT WILL FORCE THE RIDGE SOUTHWARD EARLY NEXT WEEK FOR LIGHTER TRADES...WITH THE FRONT WEAKENING TO A STALLING SHEAR LINE NORTH OF KAUAI. THE PARENT LOW WILL LIKELY CREATE A NORTHWEST SWELL NEAR ADVISORY HEIGHTS FOR LATE MONDAY AND TUESDAY. && .HFO WATCHES/WARNINGS/ADVISORIES... NONE. && BIRCHARD
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
Heavy showers in the Kau District of the Big Island of Hawaii, in the Kawa Flats area between Pahala and Naalehu, caused flash flooding along the Hawaii Belt Road. Officials reported about two feet of water covering the roadway at one point.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Hawaii in 2007Every state in 2007This day in weather historyWarnings in Hawaii, November 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 63791.